Available to hire
I am Patrick Christian Janvier, a senior software engineer with 15+ years of experience delivering scalable software across Windows-based kiosks, investment banking, trading, forestry, and energy. I thrive in Agile environments and enjoy building high-performance teams that deliver reliable, secure solutions.
I specialize in full-stack development, middleware design, cloud architecture, and data modeling. I value clean code, robust testing, and close collaboration with product, security, and operations to align tech with business goals and compliance requirements.
Skills
Experience Level
Language
English
Fluent
Work Experience
Senior Software Engineer at CYBERqp
May 31, 2025 - July 18, 2025Developed and maintained QGuard’s core modules using .NET and WinUI (MVVM) for a modern and secure UI for privileged access management. Built backend services with Node.js supporting API-driven interactions. Designed scalable microservices for credential storage, rotation, and auditing, ensuring availability and maintainability. Integrated MongoDB for secure document storage. Contributed to high-performance C# components for system operations. Collaborated for secure coding and compliance. Developed responsive front-end components with React.js, enhancing user experience. Employed WebSockets and named pipes for inter-process communication.
Senior Software Developer at INTERFOR
January 31, 2023 - July 18, 2025Performed unit testing with NUnit and Moq. Integrated ChatGPT for natural language querying in the app. Developed WPF-based user interfaces using Telerik and C1Components. Containerized microservices with Docker. Utilized Azure DevOps/TFS for CI/CD, and Power Automate for workflow automation. Designed CQRS-based microservices architecture to separate read and write for scalability. Applied Dependency Injection and LINQ/PLINQ with concurrent collections for high-performance asynchronous services. Refactored WPF UI frameworks using design patterns.
Contract Developer at WHITEWATERWEST
December 31, 2020 - July 18, 2025Implemented Unity IoC for modular architecture and MSMQ for asynchronous communication. Designed SQL Server node-edge schemas for BOM management. Coordinated ERP data migration and automated assembly tracking. Debugged and optimized legacy .NET applications. Developed Ride Forecaster tool using Python for regression and anomaly detection with ML techniques. Created WPF and Angular UIs for Engineering Dashboard and Project Viewer. Integrated SolidWorks Interop and E-Drawings APIs to extract and display BOM and CAD data.
Contract Developer at TUNDRA
April 30, 2019 - July 18, 2025Optimized WCF and Windows Services to improve kiosk-based border clearance. Diagnosed production issues and developed biometric features including facial recognition and fingerprint scanning compliant with ICAO9303. Fine-tuned stored procedures and designed complex T-SQL queries. Engineered inter-process communication using Net.TCP and Named Pipes. Applied MVVM design pattern in WPF for kiosk UI. Incorporated image pattern recognition for passport inspection. Used Entity Framework for data access and log4net for diagnostics.
Contract Developer at Ness Digitals
March 31, 2018 - July 18, 2025Performed financial data correction and validation. Managed role-based access control (RBAC). Participated in Agile ceremonies. Developed multi-threaded applications for concurrent data processing. Diagnosed production issues and delivered enhancements. Designed Angular components for financial scoring models and analytics. Integrated AWS SNS for real-time alerts and AWS CloudWatch for monitoring. Implemented REST APIs for distributed services integration. Maintained backend and legacy UI using Visual Studio and WinForms.
Software Associate at COGNIZANT TECHNOLOGIES AND SOLUTIONS
August 31, 2016 - July 18, 2025Designed and implemented Accounts Payable interface and secure RESTful APIs. Architected messaging systems using AWS SQS and SNS for reliable microservice communication. Developed .NET application screens supporting account lifecycle monitoring, billing, EDI batch processing, and rate-plan configuration. Collaborated with clients for requirements analysis. Optimized database schemas, queries, and stored procedures. Supported automated and manual triggering of business batch jobs. Worked on VeCTOR application supporting bank loan trading lifecycle, handling trade order management and settlement with compliance to regional financial regulations.
Senior Software Engineer at CYBERqp
May 31, 2025 - July 18, 2025Led development and maintenance of QGuard, a Privileged Access Management solution for MSPs, using .NET, WinUI, microservices, Node.js, and MongoDB. Built secure, scalable backend services and a modern UI with React.js. Ensured secure coding practices and compliance with industry standards, employing technologies such as Docker, Azure DevOps, and inter-process communication with WebSockets and named pipes.
Senior Software Developer at INTERFOR
January 31, 2023 - July 18, 2025Developed the Crosscut Enterprise WPF application for reporting and data entry across multiple business functions. Implemented CQRS-based microservices architecture, containerized services with Docker, integrated ChatGPT for natural language querying, and utilized Azure DevOps for CI/CD. Employed advanced UI components and applied design patterns to improve scalability and maintainability.
Contract Developer at WHITEWATERWEST
December 31, 2020 - July 18, 2025Designed and developed Engineering Dashboard and Ride Forecaster tools incorporating WPF, Angular, and Python for regression and anomaly detection. Managed hierarchical BOM data with SQL Server and integrated CAD APIs. Improved legacy .NET app performance and built interactive dashboards using advanced UI frameworks and machine learning models.
Contract Developer at TUNDRA
April 30, 2019 - July 18, 2025Optimized WCF services and Windows services for Border Express GBX kiosk platform. Integrated biometric features including facial recognition and fingerprint scanning with external SDKs. Enhanced inter-process communication using Net.TCP and Named Pipes and improved data handling with complex T-SQL queries. Applied MVVM pattern for maintainable kiosk UI development.
Contract Developer at Ness Digitals
March 31, 2018 - July 18, 2025Developed and maintained Arrow Global financial data platform supporting scoring and financial analysis. Diagnosed production issues, built multi-threaded applications, implemented dynamic Angular components, and integrated AWS services for notifications and monitoring. Worked Agile with global stakeholders and maintained backend with REST APIs and legacy WinForms.
Software Associate at Cognizant Technologies and Solutions
August 31, 2016 - July 18, 2025Developed and maintained Discovery platform for Direct Energy handling account lifecycle monitoring, rate-plan engine, and EDI processing using .NET, WPF, and Entity Framework. Designed RESTful APIs, integrated AWS messaging services SQS and SNS, created optimized database schemas and stored procedures. Collaborated with analysts to translate requirements into technical designs and supported EDI batch job automation.
Software Associate at Babson Capital Management LLC
December 31, 2013 - July 18, 2025Led full SDLC activities for VeCTOR, a loan trading lifecycle application, supporting asset allocation, trade order management, and settlement. Created SQL objects, enhanced Infragistics UI components, performed code reviews, and supported biweekly releases. Migrated business modules and collaborated on audit and review processes within a regulated financial environment.
Senior Software Engineer at CYBERqp
June 1, 2023 - May 1, 2025Developed and maintained Node.js microservices for credential storage, auditing, and access enforcement, ensuring high availability and fault isolation. Built React-based web and mobile UIs under tight deadlines, focusing on usability and secure workflows for privileged access management. Developed Python-based background services and scripts for automation tasks such as credential discovery, data validation, log processing, and operational tooling. Implemented secure Windows desktop UI using WPF and MVVM, ensuring clear separation of concerns between UI, business logic, and data access layers; integrated with backend microservices via RESTful APIs for scalable, loosely coupled architecture. Implemented encryption of sensitive data at rest and in transit, role-based authorization, and detailed audit logging. Containerized backend services with Docker, enabling consistent deployments across development, testing, and cloud environments; supported deployment and monitoring in Azure. Colla
Senior Software Developer at INTERFOR
January 1, 2021 - January 1, 2023Modernized Crosscut Enterprise from a Windows desktop WinForms-based middle-office platform to a Windows desktop + microservices architecture. Designed and developed WinForms data-entry and reporting UIs and built RESTful microservices (C# / Web API) for Manufacturing, Inventory, Sales, Finance, and Logistics. Implemented a CQRS-style architecture to separate read and write models, improving desktop responsiveness, scalability, and fault isolation. Created Python services for data transformation, ETL pipelines, and background analytics, and integrated with Power Automate for automated workflows. Containerized services with Docker and deployed on Azure; managed CI/CD via Azure DevOps and TFS. Collaborated with product, security, and operations teams to meet business, compliance, and audit requirements.
Contract Developer at WHITEWATERWEST
May 1, 2019 - December 1, 2020Implemented Unity IoC for modular architecture and MSMQ-based messaging for reliable asynchronous communication across services. Designed SQL Server 2016 node-edge schemas and stored procedures to manage hierarchical BOM structures. Coordinated ERP data migration, validated BOM consistency, and automated assembly tracking. Debugged and optimized legacy .NET applications to improve performance and maintainability. Built Ride Forecaster using Python (NumPy, pandas, scikit-learn) with regression models to predict usage patterns and applied Mahalanobis Distance for anomaly detection. Developed WPF (MVVM) and Angular UIs, integrating SolidWorks Interop and E-Drawings APIs to display BOM and CAD data. Automated engineering workflows with Power Automate.
Contract Developer at TUNDRA
August 1, 2018 - April 1, 2019Optimized WCF services, Windows Services, and RESTful APIs to improve performance and reliability of border clearance kiosks. Diagnosed production issues and ensured minimal downtime. Integrated facial recognition (Aware SDK) and fingerprint scanning (Crossmatch) for ICAO9303-compliant identity verification. Implemented inter-process communication via Net.TCP and Named Pipes, and managed CI/CD via MSBuild. Applied MVVM in WPF, used Entity Framework for data access, and automated enterprise workflows with Power Automate.
Contract Developer at Ness Digitals
September 1, 2016 - March 1, 2018Performed background data correction and validation for Arrow Global. Implemented AWS SQS for decoupled messaging and AWS SNS for real-time notifications. Designed REST APIs and RBAC-based access controls. Worked in Agile environments, built multi-tier web UI components with Angular, and integrated AWS services for workflow automation. Wrote complex T-SQL queries and optimized data access patterns for large-scale transactional datasets.
Software Associate at Cognizant Technologies and Solutions
January 1, 2014 - August 1, 2016Contributed to the Discovery platform for the middle office, including accounts lifecycle monitoring, rate-plan engine, and EDI processing. Developed RESTful APIs with authentication/authorization, designed a messaging system using AWS SQS, and implemented AWS SNS for real-time notifications. Created UI screens using .NET and web technologies and built data integration with external financial systems. Participated in Agile ceremonies and supported migration of modules to service-oriented architecture.
Software Developer at VeCTOR (Babson Capital Management LLC)
May 1, 2011 - December 1, 2013Played a curial role across the SDLC, including requirement gathering, development, and testing. Created MS SQL objects, migrated modules into the main product stream, and produced Enhancements and Bug Reports (EBR/UTC). Worked with WCF, WinForms, Infragistics controls, and code reviews to support regulatory-grade loan trading workflows.
Education
Master of Engineering at Pondicherry Engineering College
January 1, 2007 - December 31, 2009Bachelor of Engineering at Pondicherry University
January 1, 2003 - December 31, 2007Master of Engineering at Pondicherry Engineering College, Pondicherry, India
January 1, 2005 - December 31, 2007Bachelor of Engineering at Pondicherry University, Pondicherry, India
January 1, 2001 - December 31, 2005Master of Engineering in Electronics and Communication at Pondicherry Engineering College
January 11, 2030 - January 9, 2026Bachelor of Engineering in Electronics and Communication at Pondicherry University
January 11, 2030 - January 9, 2026Qualifications
Scaled Agile
January 1, 2023 - December 31, 2023Machine Learning – Coursera
January 1, 2022 - December 31, 2022Deep Learning – Coursera
January 1, 2022 - December 31, 2022AWS Developer
January 1, 2021 - December 31, 2021AWS Solutions Architect Professional
January 1, 2021 - December 31, 2021Scaled Agile
January 1, 2022 - December 31, 2022Machine Learning – Coursera
January 1, 2022 - December 31, 2022Deep Learning – Coursera
January 1, 2022 - December 31, 2022AWS Developer
January 1, 2023 - December 31, 2023AWS Solutions Architect Professional
January 1, 2023 - December 31, 2024Scaled Agile Machine Learning
January 11, 2030 - January 9, 2026Deep Learning
January 11, 2030 - January 9, 2026AWS Developer
January 11, 2030 - January 9, 2026AWS Solutions Architect Professional
January 11, 2030 - January 9, 2026Industry Experience
Software & Internet, Financial Services, Manufacturing, Energy & Utilities, Transportation & Logistics, Media & Entertainment, Professional Services, Telecommunications
Skills
Experience Level
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