I am a seasoned developer with over 25 years of professional experience, dedicated to delivering high-quality projects and cultivating a passion for programming. My career centers on Java, .NET, cloud-native solutions, and end-to-end system design, with a strong track record in banking, enterprise software, and startup environments. I have led and contributed to multi-disciplinary teams, crafting scalable architectures and robust back-end services while also delivering capable front-end solutions when needed. I thrive on solving complex problems, improving development processes, and enabling cross-functional collaboration to drive business value. I enjoy staying current with evolving technologies, applying innovative approaches like AI-assisted development and cloud-native tooling, and mentoring colleagues to raise team performance. I am a pragmatic, proactive communicator who bridges technical and business stakeholders, emphasizes quality and maintainability, and remains adaptable in fast-paced, international settings. My passion is turning requirements into reliable, scalable systems, whether in the cloud, on-prem, or across hybrid environments.

Krzysztof Kalwala

I am a seasoned developer with over 25 years of professional experience, dedicated to delivering high-quality projects and cultivating a passion for programming. My career centers on Java, .NET, cloud-native solutions, and end-to-end system design, with a strong track record in banking, enterprise software, and startup environments. I have led and contributed to multi-disciplinary teams, crafting scalable architectures and robust back-end services while also delivering capable front-end solutions when needed. I thrive on solving complex problems, improving development processes, and enabling cross-functional collaboration to drive business value. I enjoy staying current with evolving technologies, applying innovative approaches like AI-assisted development and cloud-native tooling, and mentoring colleagues to raise team performance. I am a pragmatic, proactive communicator who bridges technical and business stakeholders, emphasizes quality and maintainability, and remains adaptable in fast-paced, international settings. My passion is turning requirements into reliable, scalable systems, whether in the cloud, on-prem, or across hybrid environments.

Available to hire

I am a seasoned developer with over 25 years of professional experience, dedicated to delivering high-quality projects and cultivating a passion for programming. My career centers on Java, .NET, cloud-native solutions, and end-to-end system design, with a strong track record in banking, enterprise software, and startup environments. I have led and contributed to multi-disciplinary teams, crafting scalable architectures and robust back-end services while also delivering capable front-end solutions when needed. I thrive on solving complex problems, improving development processes, and enabling cross-functional collaboration to drive business value.

I enjoy staying current with evolving technologies, applying innovative approaches like AI-assisted development and cloud-native tooling, and mentoring colleagues to raise team performance. I am a pragmatic, proactive communicator who bridges technical and business stakeholders, emphasizes quality and maintainability, and remains adaptable in fast-paced, international settings. My passion is turning requirements into reliable, scalable systems, whether in the cloud, on-prem, or across hybrid environments.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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Language

English
Fluent
German
Beginner
Italian
Fluent
Russian
Advanced
Polish
Fluent
Swedish
Beginner

Work Experience

Consultant at INTERACTIVATED
June 30, 2025 - October 14, 2025
B2B freelancer based in Warsaw, remotely supporting Eldermark (USA/Canada). Delivered full-stack backend and frontend solutions for healthcare applications using Java (Spring Boot with Groovy), TypeScript, React.js, Ionic, React Native and Pinia; built microservices (ASP.NET Core); implemented CI/CD with Azure DevOps; containerized with AKS; used Terraform for IaC; secured secrets with Azure Key Vault; observed with Azure Monitor/Application Insights; explored Azure Databricks for analytics; managed storage with Azure SQL/Blob; led MERN-based e-commerce prototype for logistics and stock management; contributed to frontend with Vue 3/React.js/Svelte; experimented with AI-assisted development tools.
Backend Developer (Freelance) at INTERACTIVATED (Client: Eldermark)
June 30, 2025 - October 9, 2025
B2B freelance backend and full-stack development for healthcare applications; Java/Spring Boot with Groovy; frontend work with Ionic, React Native, Pinia; microservices in ASP.NET Core; Azure DevOps CI/CD, AKS, Terraform; Azure Databricks PoCs; focus on secure data exchange and interoperability with HIPAA considerations.
Backend Developer at INTERACTIVATED
June 30, 2025 - October 8, 2025
Consultant role for Eldermark via Interactivated; full-stack development with Java/Spring Boot microservices, ASP.NET Core components, React.js frontends; CI/CD in Azure DevOps, AKS; Terraform; data integration for healthcare systems.
Backend Developer at IKEA IT AB
November 30, 2024 - October 14, 2025
Second tenure focusing on backend data layer for Sales and BI environments; leveraged Google BigQuery (GCP) and analytics tooling; developed REST/SOAP services; created frontend visualizations; implemented microservices and data pipelines; containerized workloads and deployed with Kubernetes; contributed to Neo4j graph data visualizations and RESTful data exchange.
Consultant at IKEA IT AB
November 30, 2024 - August 10, 2025
Worked in Decision Intelligence and Data Foundation departments to support strategic business decisions using backend Java applications and frontend solutions with React.js, Vue, and Node.js. Developed and maintained selling range applications deployed on WebLogic, designed REST APIs, and built visualizations for a Neo4j graph database backend using Python Flask. Participated in automation testing and recovery of critical business systems. Followed Agile and Scrum methodologies with a focus on scalable and innovative backend and frontend systems.
Consultant at IKEA IT AB
November 30, 2024 - August 4, 2025
Worked in Decision Intelligence and Data Foundation departments supporting strategic business decisions using backend Java applications and frontend technologies like React.js, Vue, and Node.js. Maintained and developed the Selling Range application delivering product pricing to worldwide stores. Developed frontends for Neo4j graph database visualizations, engaged in test automation with Apache JMeter, and introduced innovations speeding up project delivery with Java API layers. Participated in recovery of critical business systems and designed REST APIs. Worked in agile SCRUM teams with code reviews.
Consultant at INTERACTIVATED (Client: ELDERMARK)
June 30, 2024 - August 10, 2025
As a B2B freelancer based in Warsaw working remotely for Eldermark in the healthcare sector, I provided expert IT solutions supporting healthcare institutions. My role involved full-stack development using Java Spring Boot with Groovy and mobile technologies like Ionic, React Native, and Kotlin. I integrated healthcare systems for seamless data flow, designed frontend applications with Vue 3 and React, and ensured compliance with healthcare regulations such as HIPAA. Additionally, I explored AI and machine learning to innovate healthcare delivery and use AI tools daily to enhance development efficiency.
Consultant at INTERACTIVATED / ELDERMARK
June 30, 2024 - August 4, 2025
Engaged as a B2B freelancer providing full stack development and maintenance of backend and frontend healthcare applications for Eldermark in the US and Canada. Developed solutions using Java (Spring Boot with Groovy), Ionic, React Native, Pinia, Kotlin, and modern frontend frameworks like Vue 3 and React. Responsibilities included integrating healthcare systems to ensure interoperability, designing responsive user interfaces, and ensuring compliance with regulations such as HIPAA. Also experimented with AI and machine learning technologies and used AI tools like GitHub Copilot and Claude to aid development.
Full-stack Developer at VERISURE AB
March 30, 2022 - October 14, 2025
Delivered backend and frontend solutions for core Sales application; built Java-based microservices with Angular/Svelte/React frontend; implemented IaC with Terraform and Azure Bicep; collaborated with cross-functional teams; provided technical leadership and mentoring to junior developers.
Full-stack / Backend Developer at VERISURE AB
March 30, 2022 - October 9, 2025
Delivered backend and frontend solutions for core Sales application across multiple sites (Malmö, Linköping, Stockholm, Madrid). Implemented CI/CD pipelines with Azure DevOps; used Terraform, Azure AKS, and Azure Bicep; built and integrated microservices; frontend in React.js and Svelte; data integration and e-commerce related features.
Full-Stack / Backend Developer at VERISURE AB
March 30, 2022 - October 8, 2025
Delivered backend and frontend solutions for core sales applications; Java-based microservices; React.js and Svelte frontends; Terraform and Azure Bicep for IaC.
Full-stack Developer at VERISURE AB
March 30, 2022 - August 10, 2025
Delivered backend and frontend solutions for the core sales application using Java 8, Spring Boot, Angular, and Ionic frameworks. Developed and maintained microservices architectures supporting sales processes, integrated various systems seamlessly, and provided mentorship to junior developers. Worked across multiple locations including Malmö, Linköping, Stockholm, and Madrid to enhance business success through technology.
Full-stack Developer at VERISURE AB
March 30, 2022 - August 4, 2025
Delivered backend and frontend solutions for the core sales application, supporting sales processes with Java and microservices architecture. Developed user interfaces using React.js and mobile solutions with Ionic and React Native. Collaborated with cross-functional teams and provided technical leadership and mentorship to junior developers.
Full Stack Developer at VERISURE AB
August 16, 2021 - March 30, 2022
Delivered backend and frontend solutions for core Sales application; implemented ASP.NET Core and Java-based services; used React.js and Svelte for UI; deployed infrastructure as code with Terraform and Azure Bicep; collaborated with cross-functional teams to enhance sales workflows.
Backend Developer at IKEA IT AB
July 31, 2021 - October 14, 2025
worked in Helsingborg (Capgemini, Softhouse) on backend systems within Decision Intelligence and Data Foundation; designed and maintained Java-based microservices and data APIs; contributed to data provisioning and distribution to stores; built frontend visualizations using React.js, Vue.js and Svelte; worked with Node.js, Python; developed mobile frontends with React Native and Ionic; containerized workloads and implemented IaC with Terraform and Azure Bicep; explored AI/ML applications and data analytics.
Backend Developer at IKEA IT AB, Helsingborg (Capgemini, Softhouse)
July 31, 2021 - October 9, 2025
Backend development within Decision Intelligence and Data Foundation. Built and maintained Java applications, data pipelines, and API layers; data visualization and analytics support; cloud-native workloads on Azure; Terraform and Kubernetes; frontend interfaces with React.js, Vue.js, and Svelte; integration of e-commerce and business systems; focus on scalable, reliable deployments.
Senior Software Developer at IKEA IT AB
July 31, 2021 - October 8, 2025
Backend/Data & API solutions for Decision Intelligence and Data Foundation; Java/Spring Boot, REST/SOAP services; data pipelines using Google Cloud Platform BigQuery; frontend with React.js/Vue.js; microservices, Kubernetes, Terraform; AI experimentation.
Backend Developer at IKEA IT AB
December 31, 2017 - October 14, 2025
Earlier IKEA assignment focusing on Java-based backend services, data provisioning, and REST/SOAP layers; supported system recovery (OER), content management, and e-commerce integrations; prototyped MERN-based solutions and data visualization components.
Backend Developer / AI Developer at UBS BANK
September 17, 2017 - October 14, 2025
Worked on early AI initiatives using IPSOFT for enterprise messaging and automation of MQ requirements; extended automated processes to other departments; contributed to ASP.NET Core microservices and Java-based backend components; supported payments provider integrations.
Artificial Intelligence Developer (Consultant) at UBS Bank, Zürich, Switzerland
September 17, 2017 - October 9, 2025
Applied early AI concepts to enterprise messaging (IPSOFT) to automate MQ requirements; extended automated processes to ticketing and internal system integration; microservices development in ASP.NET Core; payments-provider integrations.
Artificial Intelligence Developer at UBS Bank
September 17, 2017 - October 8, 2025
Applied AI concepts to enterprise messaging and automation; integrated AI workflows with IPSOFT for MQ/enterprise messaging and ticketing; developed microservices in ASP.NET Core.
Consultant as Artificial Intelligence Developer at UBS BANK
September 17, 2017 - August 10, 2025
Worked on early phase AI projects leveraging IPSOFT technology to automate enterprise messaging with MQ systems. Extended automation to support ticketing and internal integrations, bringing technical resources and knowledge transfer to improve efficiency at the bank.
Consultant as Artificial Intelligence Developer at UBS BANK
September 17, 2017 - August 4, 2025
Worked on early AI projects automating enterprise messaging systems using IPSOFT technology. Introduced AI concepts to enhance MQ automation and extended automation processes across departments such as ticketing and internal system integration. Contributed as a technical expert and knowledge transfer resource.
Senior Software Developer at PURPLE SCOUT
April 30, 2017 - October 14, 2025
Handover and feature development on monitoring application for 25 airports; built API to ingest sensor camera data; collaborated with NTT DATA DELL for handover and integration.
Senior Software Developer at PURPLE SCOUT / NTT DATA DELL
April 30, 2017 - August 10, 2025
Managed handover and developed requested features for an application monitoring conditions at 25 airports worldwide, creating APIs for sensor and camera data. Assisted in the handover of Java applications, adapting to strict quality and delivery standards with quick learning and ensuring seamless transitions.
Senior Software Developer at PURPLE SCOUT / NTT DATA DELL
April 30, 2017 - August 4, 2025
Responsible for handover and feature development of backend and frontend applications monitoring airport conditions globally. Built dedicated APIs for sensor and camera data. Assisted with high-quality delivery and rapid understanding of complex project requirements.
Senior Software Developer at REDSAPSOLUTIONS
February 25, 2017 - October 14, 2025
Handled backend and frontend feature development; API design and implementation; mentored junior developers; contributed to data-driven airport sensor monitoring API; supported handover and onboarding for client projects.
Senior Software Developer at REDSAPSOLUTIONS
December 1, 2016 - February 25, 2017
Handover and feature development for airport monitoring API; implemented sensor/camera data ingestion; supported middleware and integration tasks; ensured high reliability for critical monitoring systems.
Senior Software Developer at AMADEUS GMBH
November 30, 2016 - August 10, 2025
Developed automated logging solutions and tools to handle big data for global travel agencies. Created a Java backend replacing a C++ application to process billions of records daily using Aerospike key-value store and integrated multiple databases, participating in testing and delivery of big data solutions.
Senior Software Developer at AMADEUS GMBH
November 30, 2016 - August 4, 2025
Developed automated logging solutions and big data tools for global travel agency systems. Converted C++ backend to Java to process large data volumes. Engaged in Python, React, and Node.js frontend development. Tested and integrated big data technologies such as Aerospike and Hadoop.
Senior Software Developer at ERICSSON
August 31, 2016 - August 10, 2025
Automated product installation processes and maintained strategic Ericsson SDP components. Involved in multi-site cross-functional teams, managing all aspects from development to deployment, with a focus on robust software development and packaging.
Senior Software Developer at ERICSSON
August 31, 2016 - August 4, 2025
Contributed to automation of product installation processes and maintenance of strategic Ericsson SDP components. Assisted in packaging and delivery of software products while working in multi-site cross-functional teams. Developed skills across software development lifecycle phases.
Senior Software Developer at GENERALI / UNICREDIT BANK
August 31, 2015 - August 10, 2025
Worked on insurance and banking software, performing requirement analysis, design, and development of payment systems and support modules on IBM WebSphere platform with a team of onsite and offshore developers.
Senior Software Developer at GENERALI / UNICREDIT BANK
August 31, 2015 - August 4, 2025
At GENERALI, analyzed design and architecture and supported insurance software development and 3rd level support. At UNICREDIT, contributed to design and development of high-performance payment systems on IBM WebSphere portal, advising on development processes within a team of 10 developers.
Senior Software Developer at EUROPEAN PATENT OFFICE
December 31, 2014 - October 14, 2025
Project 1: CMS development for patent office; performance and scalability improvements for Java apps; REST API support; ASP.NET Core microservices. Project 2: Front-end prototype for examiner tools; MDA approach; UI support for UI designers.
Senior Software Developer at EUROPEAN PATENT OFFICE
December 31, 2014 - August 10, 2025
Developed and maintained the content management system, created prototypes for examiner applications, supported continuous deployment environments, and worked in tight collaboration with UI designers and developers using Java, PERL, and web technologies.
Senior Software Developer at EUROPEAN PATENT OFFICE
December 31, 2014 - August 4, 2025
Developed and maintained content management systems, designed scalable Java applications, and created front-end prototypes for patent examiners. Supported continuous deployment and applied technologies including Perl scripting, REST APIs, and various database systems.
Senior Software Developer at TRIGGER HAPPY LTD
May 30, 2014 - October 14, 2025
NZ-based startup work for iOS clients; built backend services in Java/Spring; frontend prototyping in Swift/Objective-C; proof-of-concept and rapid development for mobile commerce and games integration.
Software Developer at TRIGGER HAPPY LTD
May 30, 2014 - October 9, 2025
Contract work for a NZ-based startup; backend in Java/Spring Boot and frontend in JavaScript-based frameworks; API development and integration for airport sensor/ camera data; iOS prototype via native tech in early phases; involvement in end-to-end development and handover activities.
Senior Software Developer at TRIGGER HAPPY LTD
May 30, 2014 - August 10, 2025
Developed iOS applications for retail and toy store sales integrating Java Spring Boot backend and cross-platform mobile architecture using Objective C and Swift, contributing to award-winning startup products in New Zealand.
Senior Software Developer at TRIGGER HAPPY LTD
May 30, 2014 - August 4, 2025
Worked for a New Zealand startup developing iOS applications using Swift and Objective C with Java/Spring Boot backend. Implemented cross-platform mobile architectures supporting in-app purchases and cloud integrations. Engaged with various modern frontend and backend technologies including Scala, Node.js, and Ruby on Rails.
Senior Software Developer at TRIGGER HAPPY LTD
November 1, 2012 - May 30, 2014
NZ-based startup work on iPad/iPhone app with Swift/Objective-C; backend in Java/Spring Boot supporting toy store data and in-app purchases; prototype and initial product development.
Senior Software Developer & Analyst at ENSTRATUS
November 1, 2012 - October 14, 2025
Maintained and supported Cloud product; API development; migrated Java code to Groovy (Grails); worked with NoSQL (RiAK); contributed to MapReduce tasks; supported cloud SaaS/PAAS offerings.
Senior Software Developer at ENSTRATUS
November 1, 2012 - August 10, 2025
Worked as a Java developer for a cloud computing company on-site and remotely, building backend APIs and migrating code to Groovy and Grails frameworks. Supported key accounts and coordinated work with international teams in Korea, New Zealand, and USA.
Senior Software Developer at ENSTRATUS
November 1, 2012 - August 4, 2025
Maintained and supported cloud computing products, leading architecture and API development. Migrated Java code to Groovy/Grails and coordinated remote teams across multiple countries to provide cloud product solutions.
Senior Software Developer at EUROPEAN PATENT OFFICE
June 30, 2011 - October 14, 2025
CMS-related development using Lenya/Java tooling; backend services; database integration (MySQL/PostgreSQL); overall enterprise-grade web services.
Senior Software Developer & Analyst at OSTC
February 26, 2011 - October 14, 2025
Core Java JSF risk management application for real-time trading; multi-threaded architecture; frontend integration and cross-platform mobility; supported mobile variant via Xamarin.
On Screen Trading Connections (OSTC) – Java Developer at OSTC
February 26, 2011 - October 8, 2025
Plan and implement core Java/web components for real-time trading risk monitors; contributed to RAD Excel/VBA and .NET reporting; involved in cross-team coordination and system recovery activities.
Senior Software Developer at OSTC - On Screen Trading Connections
February 26, 2011 - August 10, 2025
Planned and developed multi-threaded Java applications for real-time online trading monitoring, coordinated team efforts, and developed reporting automation using VBA and .NET for finance departments in the UK and Poland.
Senior Software Developer at OSTC – On Screen Trading Connections
February 26, 2011 - August 4, 2025
Led architecture planning and multi-threaded Java development for a critical financial risk monitoring application. Coordinated team efforts integrating C++ and C# APIs with Java backend, and developed RAD Excel VBA reporting solutions for finance.
Senior Software Developer at BANK OF INTESA SAN PAOLO
November 30, 2009 - October 14, 2025
Requirements analysis, development planning, testing and delivery of web-based banking/insurance modules; Domino-based front-to-back integration for EURIZON VITA; multiple on/offshore teams collaboration.
Software Developer / Analyst at OSTC – On Screen Trading Connections
October 1, 2009 - February 26, 2011
Core Java/JSF risk management web application; real-time data for futures trading; mobile version via Xamarin; architecture planning and leadership.
Chief IT Information Specialist at NATIONAL ADMINISTRATOR OF EMISSIONS TRADING SCHEME (KASHUE)
September 30, 2009 - October 14, 2025
Polish implementation of Pan-European trading scheme; maintenance of office applications for trade monitoring; involvement in trading auction processes; integration of emissions data systems.
Senior Software Developer & Analyst at NATIONAL ADMINISTRATOR OF EMISSIONS TRADING SCHEME (KASHUE)
September 30, 2009 - October 8, 2025
Development of Pan-European emissions trading system components; CMS/architecture support; involvement in performance optimization and deployment support.
Chief IT Information Specialist at NATIONAL ADMINISTRATOR OF EMISSIONS TRADING SCHEME (KASHUE)
September 30, 2009 - August 10, 2025
Implemented Pan-European electronic emissions trading system in Poland including trade monitoring applications and auction modules. Worked with web technologies and databases supporting EU regulatory compliance.
Chief IT Information Specialist at National Administrator of Emissions Trading Scheme (KASHUE)
September 30, 2009 - August 4, 2025
Implemented the Pan European emissions trading scheme in Poland including development and maintenance of trading systems supporting 100,000 installations and auctions. Utilized object relational models and web technologies.
Chief IT Information Specialist at NATIONAL ADMINISTRATOR OF EMISSIONS TRADING SCHEME (KASHUE)
December 1, 2008 - September 30, 2009
Pan-European emissions trading scheme implementation; managed local applications and 100,000 installations; contributed to scheme web services and auction support.
Senior Software Developer at Bank of Intesa Sanpaolo
November 30, 2008 - October 8, 2025
Design and development of high-performance payment systems; collaboration with onsite/offshore teams; Java/J2EE, ASP.NET Core (microservices), and integration with IBM WebSphere portals.
Senior Software Developer & Analyst at BANK OF INTESA SAN PAOLO / EURIZON VITA
November 30, 2008 - August 10, 2025
Analyzed and developed payment systems integrating multiple front-end and back-end technologies for banking and insurance sectors, supporting high-performance transactions and advising development teams.
Senior Software Developer & Analyst at BANK OF INTESA SAN PAOLO / EURIZON VITA
November 30, 2008 - August 4, 2025
Analyzed requirements and designed web applications integrating banking and insurance frontends and data. Developed modules using Lotus Notes Domino and Java servlets handling international/domestic payments.
Software Developer at BANK OF ITESA SAN PAOLO
June 1, 2008 - November 30, 2008
Domino/Java-based integration for insurance and banking modules; on-going development of core modules and web interfaces.
Senior Software Developer at BELGOCONTROL
March 30, 2008 - October 8, 2025
Domino web services development for weather reporting and meteorology; multi-language web services and maintenance within a Domino/Java environment.
Senior Software Project Manager & Developer at BELGOCONTROL
March 30, 2008 - August 10, 2025
Developed and maintained multi-language Domino web services for aviation meteorology reporting, improving enterprise SOA infrastructure and web services supporting business operations in Belgium.
Senior Software Project Manager & Developer at BELGOCONTROL
March 30, 2008 - August 4, 2025
Developed and maintained Domino web services for multi-language air weather reporting and aircraft meteorology systems. Built web services using SOA, UDDI, XML, and IBM WebSphere technologies.
Senior Software Developer at BELGOCONTROL
November 1, 2007 - March 30, 2008
Domino web services for aviation meteorology; multi-language portal development; SOA/web services integration.
Senior Software Developer at WESTPAC BANK
October 31, 2007 - October 8, 2025
Redesign and consolidation of online banking platforms; Domino/Domino-based workflows; cross-location migration and disaster recovery planning.
Solution Architect and Project Manager at WESTPAC BANK
October 31, 2007 - August 10, 2025
Redesigned and consolidated core online banking platforms, managed disaster recovery projects, and orchestrated multi-site infrastructure migration and upgrades across global bank locations.
Solution Architect and Project Manager at WESTPAC BANK
October 31, 2007 - August 4, 2025
Redesigned, migrated, and consolidated core banking online platforms and disaster recovery systems. Managed multi-site infrastructure consolidation and upgrades, developing cross-department applications and online forms, supporting thousands of business clients globally.
Intern / Senior Software Developer at Ericsson
August 31, 2006 - October 8, 2025
Automation support for product installation processes; packaging and deployment assistance; cross-site collaboration.
Senior Software Developer at WESTPAC BANK
April 15, 2006 - October 31, 2007
Redesign and consolidation of online banking platforms; disaster recovery and multi-location Domino infrastructure projects.
Senior Software Developer at 3M
April 10, 2006 - October 14, 2025
Development for automated server logging/monitoring tools; Python with some frontend (React.js/Node.js); handling big data processing tasks.
Software Developer at 3M
April 10, 2006 - October 8, 2025
Development related to automated logging and big data tooling; Python, Java, and front-end elements; integration with travel and information systems.
Software Developer and Project Manager at 3M
April 10, 2006 - August 10, 2025
Designed and implemented a peer-to-peer recognition application for corporate users, including archiving solutions, contributing to internal communications and employee engagement enhancements.
Software Developer and Project Manager at 3M
April 10, 2006 - August 4, 2025
Designed and developed peer-to-peer recognition web and client applications for over 5000 corporate users, including implementation of data archiving solutions.
Software Engineer at 3M
March 1, 2006 - April 10, 2006
Python-based automation and big data tooling; server-side processing for travel information; cross-endpoint data integration.
Senior Software Developer at RAIFFEISEN BANK
January 31, 2006 - October 14, 2025
International/domestic payments platform development; Oracle/SQL backend; ESB/SOA integration; CRM and web/mobile banking components.
Senior Software Developer at Raiffeisen Bank
January 31, 2006 - October 8, 2025
Development of internal banking applications and integration with Oracle/SQL databases; involvement in Domino/Java-based solutions and process improvements.
Software Engineer & Analyst at RAIFFEISEN BANK
January 31, 2006 - August 10, 2025
Maintained and developed Lotus Notes Domino applications and PHP-based web solutions for internal banking use, managing requirements, testing, rollout, and support in a dynamic banking environment.
Software Engineer & Analyst at RAIFFEISEN BANK
January 31, 2006 - August 4, 2025
Delivered new and maintained existing Lotus Notes Domino applications and web projects in PHP and Oracle for internal banking use. Engaged in requirements analysis, development, testing, and rollout following SDLC practices.
Senior Software Developer at RAIFFEISEN BANK
November 1, 2002 - January 31, 2006
Legacy-to-modernization efforts; Oracle/SQL-based banking applications and Domino integration work.
Corporate Software Engineer & Administrator at COCA COLA AMATIL - CCHBC
October 30, 2002 - October 14, 2025
Head office app development, Domino-based workflows, intranet content management; administered Domino servers across 26 countries; development of internal finance and processing tools.
Corporate Software Engineer & Administrator at Coca-Cola Amatil - CCHBC
October 30, 2002 - October 8, 2025
Domino-based intranet and application development; multiple centralized servers; Windows/Linux administration and cross-border deployments.
Corporate Software Engineer & Administrator at COCA COLA AMATIL - CCHBC
October 30, 2002 - August 10, 2025
Oversaw European data centers and was the country level administrator for global Domino infrastructure supporting thousands of users. Developed finance applications, workflows, and managed cross-country administrator workloads.
Corporate Software Engineer & Administrator at COCA COLA AMATIL - CCHBC
October 30, 2002 - August 4, 2025
Served as Corporate Systems Supervisor and Software Developer building country level IT infrastructure and applications for European data centers. Managed complex Lotus Domino infrastructure deployed across multiple continents supporting 15K users.
Corporate Software Engineer & Administrator at Coca-Cola HBC / Coca-Cola Amatil
April 1, 1997 - October 30, 2002
Corporate Domino environment administration; intranet applications; cross-country deployment and data center work for 15k users.
IT Specialist at ING BANK
March 31, 1997 - October 14, 2025
Local IT infrastructure creation, server setup, migration to electronic processes; loan applications development; Telekom/Banking IT projects.
IT Specialist at ING Bank
March 31, 1997 - October 8, 2025
Local IT infrastructure support; migration to electronic systems; development of loan applications and internal tooling.
IT Specialist at ING BANK
March 31, 1997 - August 10, 2025
Created local IT infrastructure from scratch in a bank, including LAN setup, system rollouts, and supported staff during transition from paper-based to electronic banking processes. Developed loan application software for credit department.
IT Specialist at ING BANK
March 31, 1997 - August 4, 2025
Created and maintained local bank unit IT infrastructure and client-server LAN, supporting migration to electronic systems and developing loan application software for credit department.
IT Specialist at ING Bank
August 1, 1994 - March 31, 1997
Local IT infrastructure; server deployment; migration from paper-based processes to electronic solutions; loan application development.

Education

Master Of Science at Technical University of Wroclaw
October 1, 1988 - July 1, 1994
Course in Statistics in Biology at Universita Degli Studi di Siena
January 1, 1993 - June 30, 1993
Master Of Science at Technical University of Wroclaw
October 1, 1988 - July 31, 1994
Statistics in Biology Faculty at Universita Degli Studi di Siena
January 1, 1993 - June 30, 1993
Master of Science at Technical University of Wroclaw
October 1, 1988 - July 31, 1994
Course in Statistics in Biology (Applied Mathematics) at Universita Degli Studi di Siena
January 1, 1993 - June 30, 1993
Master of Science at Technical University of Wroclaw (Poland) - Faculty of Basic Problems of Technology, Applied Mathematics
October 1, 1988 - July 31, 1994
Statistics in Biology at Universita degli Studi di Siena, Italy
January 1, 1993 - June 30, 1993
Master of Science at Technical University of Wroclaw
October 1, 1988 - July 31, 1994
Statistics in Biology at Universita Degli Studi di Siena
January 1, 1993 - June 30, 1993
Master of Science at Technical University of Wroclaw, Poland
October 1, 1988 - July 31, 1994
Study abroad program at Universita degli Studi di Siena, Italy
January 1, 1993 - June 30, 1993

Qualifications

UML 2.1, Advanced Part 1 & 2
January 1, 2009 - August 4, 2025
PL SQL, SQL tuning
January 1, 2005 - August 4, 2025
RADS (J2EE) workshop
January 1, 2005 - August 4, 2025
Requirements Management
January 1, 2005 - August 4, 2025
UML
January 1, 2005 - August 4, 2025
J2EE programming, WSAD
January 1, 2004 - August 4, 2025
Six Sigma training
January 1, 2004 - August 4, 2025
CFA Level 1
January 1, 2003 - August 4, 2025
WebSphere Portal Toolkit Development
January 1, 2004 - August 4, 2025
Lotus Domino Workflow
January 1, 2003 - August 4, 2025
Modern Risk Analysis
January 1, 2002 - August 4, 2025
Project Management Training
January 1, 2002 - August 4, 2025
E-communication Training
January 1, 2002 - August 4, 2025
Deploying Domino Application R5
January 1, 2001 - August 4, 2025
UML 2.1, Advanced Part 1 & 2
January 1, 2009 - August 10, 2025
PL SQL, SQL tuning
January 1, 2005 - August 10, 2025
RADS (J2EE) workshop
January 1, 2005 - August 10, 2025
Requirements’ Management
January 1, 2005 - August 10, 2025
UML
January 1, 2005 - August 10, 2025
J2EE Programming, WSAD IBM
January 1, 2004 - August 10, 2025
Six Sigma training
January 1, 2004 - August 10, 2025
CFA Level 1
January 1, 2003 - August 10, 2025
WebSphere Portal Toolkit Development
January 1, 2004 - August 10, 2025
Lotus Domino Workflow
January 1, 2003 - August 10, 2025
Modern Risk Analysis
January 1, 2002 - August 10, 2025
Project Management Training
January 1, 2002 - August 10, 2025
E-communication Training
January 1, 2002 - August 10, 2025
Deploying Domino Application R5
January 1, 2001 - August 10, 2025
UML 2.1
January 11, 2030 - October 8, 2025
Linux Academy
January 11, 2030 - October 8, 2025
PL/SQL
January 11, 2030 - October 8, 2025
RADS (J2EE) workshop
January 11, 2030 - October 8, 2025
Six Sigma training
January 11, 2030 - October 8, 2025
Six Sigma training
January 1, 2004 - October 9, 2025
CFA Level 1
January 1, 2003 - December 31, 2004
Project Management Training
January 1, 2002 - December 31, 2002
UML 2.1
January 1, 2009 - December 31, 2009
Six Sigma training
January 1, 2004 - January 1, 2004
CFA Level 1
January 1, 2003 - January 1, 2004
WebSphere Portal Toolkit Development
January 1, 2004 - January 1, 2004
CFA Level 1
January 1, 2003 - December 31, 2004
Six Sigma training
January 1, 2004 - December 31, 2004
UML 2.1
January 1, 2009 - December 9, 2025

Industry Experience

Financial Services, Healthcare, Retail, Software & Internet, Travel & Hospitality, Professional Services, Manufacturing, Government, Transportation & Logistics, Media & Entertainment

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
See more