Available to hire
I am a dedicated Full Stack Developer offering freelance services, specializing in creating dynamic and scalable web applications using Java, Angular, and AWS cloud infrastructure. With extensive experience covering both front-end and back-end development, I help clients transform their digital visions into high-performance solutions.
I bring 20+ years of experience in the software industry across telecommunications and banking, with 15+ years in Java and Node.js backend development. I enjoy solving complex problems and delivering robust cloud-based solutions, including AWS-based serverless and containerized architectures.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Language
Bengali
Fluent
English
Fluent
Finnish
Intermediate
Hindi
Intermediate
Work Experience
Senior Software Engineer at Nokia
June 1, 2006 - February 1, 2011Led development for Nokia Series 40 and Symbian SDK components, contributing to mobile platform SDKs in C/C++/Java. Ensured Java JSR compliance with Sun TCK and collaborated with cross-functional teams to deliver robust SDK features for external developers and internal systems.
Software Engineer at Espoo City
August 1, 2013 - June 1, 2014Implemented Info TV automated web services using C# ASP.NET; developed Solax backend in Java; created Windows Phone 8 and Android apps; contributed to Azure cloud deployments and CI/CD pipelines for municipal maintenance systems.
Senior Software Developer at FNX Solutions
October 1, 2014 - April 1, 2018Consulted for multiple Finnish clients, delivering Java 8, Spring Boot/MVC, Struts-based backends, and modern architectures. Integrated Elasticsearch, Redis, Kafka, GraphQL and REST/SOAP services; contributed to Azure DevOps pipelines and microservice designs; mentored junior developers.
Full Stack Developer at Ericsson
April 1, 2018 - July 1, 2019Developed Ericsson’s Device Connection Platform (DCP) on AWS, building microservices with Java 8, Spring and related tech. Implemented IoT-oriented components, Elasticsearch, Redis, API Gateway, and cloud-native deployments; performed code reviews and ensured scalable cloud solutions.
Full Stack Developer at Volvo Cars
July 1, 2019 - March 1, 2020Global Car Configurator (GCC) migration and feature enhancements. Migrated legacy Java 1.6 code to Java 1.8 and moved toward Quarkus; modernized frontend from Apache Tiles to React; implemented caching improvements and distributed deployment practices.
Full Stack Developer at Nets Payment
April 1, 2020 - March 1, 2021Optimized payment processing by tuning SQL/NoSQL queries and Kafka transactions; enhanced audit reporting backend with Java, Spring Boot, and Hibernate; improved Angular frontend and onboarding of new banks and merchants.
Full Stack Developer at Nordea Bank
March 1, 2021 - December 1, 2021Enhanced credit card payment services by optimizing transaction paths and backend services; integrated Oracle SQL, Kafka, and containerized deployments; onboarding of multiple new banks and partners.
Full Stack Developer at Cognizant (DCSA project)
March 1, 2022 - July 1, 2023Full stack development and rotating Scrum Master for the Digital Container Shipping Association (DCSA) API conformance toolkit (CTK). Led microservice design, RESTful/API development, and deployment on AWS Sandbox; mentored teams and drove Agile ceremonies.
Full Stack Developer at WIPO
February 1, 2024 - November 1, 2024Full stack development focusing on AWS cloud technologies, Java-based frameworks (Spring, Hibernate), Docker, Kubernetes, REST/OpenAPI/SOAP backends, and Angular frontend. Contributed to API conformance and cloud migration efforts.
Full Stack Developer at Zaver
January 1, 2025 - PresentRemote freelance full stack development offering Java, Angular, and AWS cloud solutions. Focused on dynamic, scalable web applications, serverless patterns, and API design for clients worldwide.
Full stack software engineer at World Intellectual Property Organization (WIPO)
February 1, 2024 - November 1, 2024Full stack development with Java-based frameworks and AWS cloud technologies; built web applications and APIs; led backend services modernization and cloud migration efforts.
Full stack developer, Team Lead at Cognizant
March 1, 2022 - July 1, 2023Led development of CTK toolkit for DCSA; designed and implemented microservices; deployed on AWS Sandbox; guided agile ceremonies; collaborated with cross-functional teams.
Full stack developer at Cognizant
January 1, 2022 - February 1, 2024Contributed to DCSA-related projects including API conformance toolkit; built microservices and RESTful APIs; participated in Scrum ceremonies; code reviews.
Full stack developer at Nets (Payment)
April 1, 2020 - March 31, 2021Credit card payment service development; optimized SQL, NoSQL, and Kafka transactions; improved audit reporting and onboarding of new banks/companies.
Full stack developer & Rotating Scrum Master at Volvo Cars
July 1, 2019 - March 31, 2020Developed and migrated GCC (Global Car Configurator) from Java 1.6 to Java 1.8; modernized frontend from Apache Tiles to ReactJS; implemented new features; improved caching.
Software Developer at Espoo City
August 1, 2013 - June 30, 2014Azure cloud-based maintenance management system Solax backend by Java; Info TV automatic web service; Windows Phone and Android apps for Solax.
Senior Software Engineer at FNX Solutions
October 1, 2014 - April 1, 2018Consulting for Finnish clients; migrated legacy systems to Azure; modernized TV and radio services; investment/trading platform FA Solutions; Node.js and Scala Akka work; delivered modernization.
Software Supervisor, Team Lead at EVTEK University of Applied Sciences
March 1, 2005 - April 1, 2006Lab instructor for C/C++, Java; supervised R&D projects; contributed to open-source projects; guided bachelor students in software engineering.
Full Stack Developer, Team Lead at Cognizant (DCSA project)
March 1, 2022 - July 31, 2023Led development for the Digital Container Shipping Association (DCSA) API Conformance Toolkit (CTK); designed and implemented microservices and RESTful APIs; collaborated in an Agile/Scrum environment and migrated CTK from a local test runner to a microservice-based architecture.
Senior Software Engineer at Espoo City
August 1, 2013 - June 30, 2014Worked on Azure-based maintenance management systems and Info TV web services; contributed to service delivery for city infrastructure projects and integrated Azure cloud solutions.
Education
Master Degree in Computer Engineering, Major Software Engineering at Metropolia University, Espoo, Finland
January 11, 2030 - January 31, 2026Bachelor Degree in Computer Engineering, Major Software Engineering at EVTEK University, Espoo, Finland
January 11, 2030 - January 31, 2026Master Degree in Computer Engineering, Major Software Engineering at Metropolia University, Espoo, Finland
January 11, 2030 - January 31, 2026Bachelor Degree in Computer Engineering, Major Software Engineering at EVTEK University, Espoo, Finland
January 11, 2030 - January 31, 2026Master Degree in Computer Engineering, Major Software Engineering at Metropolia University, Espoo, Finland
January 11, 2030 - January 31, 2026Bachelor Degree in Computer Engineering, Major Software Engineering at EVTEK University, Espoo, Finland
January 11, 2030 - January 31, 2026Qualifications
AWS Certified Developer – Associate
January 11, 2030 - January 31, 2026AWS Certified Cloud Practitioner
January 11, 2030 - January 31, 2026Full Stack Engineer Accreditation (FSE)
January 11, 2030 - January 31, 2026Google Kubernetes Engine (GKE) Training
January 11, 2030 - January 31, 2026Google Cloud Platform Training
January 11, 2030 - January 31, 2026YKI Finnish language B1 certification
January 11, 2030 - January 31, 2026Agile Scrum Methodology Certification
January 11, 2030 - January 31, 2026AWS Certified Developer – Associate
January 11, 2030 - January 31, 2026AWS Certified Cloud Practitioner
January 11, 2030 - January 31, 2026Google Kubernetes Engine (GKE) training
January 11, 2030 - January 31, 2026YKI Finnish language B1 certification
January 11, 2030 - January 31, 2026Agile Scrum methodology certification
January 11, 2030 - January 31, 2026AWS Certified Developer – Associate
January 11, 2030 - January 31, 2026AWS Certified Cloud Practitioner
January 11, 2030 - January 31, 2026Google Kubernetes Engine (GKE) training
January 11, 2030 - January 31, 2026Google Cloud Platform training
January 11, 2030 - January 31, 2026YKI Finnish language B1 certification
January 11, 2030 - January 31, 2026Agile Scrum methodology certification
January 11, 2030 - January 31, 2026Industry Experience
Telecommunications, Financial Services, Software & Internet, Transportation & Logistics, Government, Professional Services, Media & Entertainment
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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