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An experienced, detail-obsessed, reliable, and versatile Senior Full-Stack Developer focused on backend APIs, data, and system integrations. 15 years shipping production software in banking, SaaS, and logistics, from greenfield builds to full-on legacy codebase archaeology. I build secure, observable services and modern web apps with Java 21, Spring Boot, Angular, and strong SQL (PostgreSQL, MySQL, Azure SQL), plus Docker, Kubernetes, and CI/CD across cloud environments (GCP, AWS). Expect clean, testable code (SOLID, TDD), pragmatic architecture, performance tuning, and accountable production support. Bilingual EN/FR, proficient communicator. AI/LLM whisperer [where it helps]. High-quality outputs only.…An experienced, detail-obsessed, reliable, and versatile Senior Full-Stack Developer focused on backend APIs, data, and system integrations. 15 years shipping production software in banking, SaaS, and logistics, from greenfield builds to full-on legacy codebase archaeology. I build secure, observable services and modern web apps with Java 21, Spring Boot, Angular, and strong SQL (PostgreSQL, MySQL, Azure SQL), plus Docker, Kubernetes, and CI/CD across cloud environments (GCP, AWS). Expect clean, testable code (SOLID, TDD), pragmatic architecture, performance tuning, and accountable production support. Bilingual EN/FR, proficient communicator. AI/LLM whisperer [where it helps]. High-quality outputs only.

Olivier Gosselin

Programmer, Back-End Developer, Web Developer, +7

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An experienced, detail-obsessed, reliable, and versatile Senior Full-Stack Developer focused on backend APIs, data, and system integrations. 15 years shipping production software in banking, SaaS, and logistics, from greenfield builds to full-on legacy codebase archaeology. I build secure, observable services and modern web apps with Java 21, Spring Boot, Angular, and strong SQL (PostgreSQL, MySQL, Azure SQL), plus Docker, Kubernetes, and CI/CD across cloud environments (GCP, AWS). Expect clean, testable code (SOLID, TDD), pragmatic architecture, performance tuning, and accountable production support. Bilingual EN/FR, proficient communicator. AI/LLM whisperer [where it helps]. High-quality outputs only.…An experienced, detail-obsessed, reliable, and versatile Senior Full-Stack Developer focused on backend APIs, data, and system integrations. 15 years shipping production software in banking, SaaS, and logistics, from greenfield builds to full-on legacy codebase archaeology. I build secure, observable services and modern web apps with Java 21, Spring Boot, Angular, and strong SQL (PostgreSQL, MySQL, Azure SQL), plus Docker, Kubernetes, and CI/CD across cloud environments (GCP, AWS). Expect clean, testable code (SOLID, TDD), pragmatic architecture, performance tuning, and accountable production support. Bilingual EN/FR, proficient communicator. AI/LLM whisperer [where it helps]. High-quality outputs only.

Available to hire

An experienced, detail-obsessed, reliable, and versatile Senior Full-Stack Developer focused on backend APIs, data, and system integrations. 15 years shipping production software in banking, SaaS, and logistics, from greenfield builds to full-on legacy codebase archaeology. I build secure, observable services and modern web apps with Java 21, Spring Boot, Angular, and strong SQL (PostgreSQL, MySQL, Azure SQL), plus Docker, Kubernetes, and CI/CD across cloud environments (GCP, AWS). Expect clean, testable code (SOLID, TDD), pragmatic architecture, performance tuning, and accountable production support. Bilingual EN/FR, proficient communicator. AI/LLM whisperer [where it helps]. High-quality outputs only.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Beginner

Language

French

Fluent

English

Advanced

Work Experience

Senior Programmer-Analyst – Full-Stack at Mouvement Desjardins

February 1, 2025 - December 31, 2025

Developed and maintained enterprise web applications and REST APIs for internal teams supporting business customers. Worked across the full delivery lifecycle in Agile/Scrum within a large-scale CI/CD environment, emphasizing code quality, testability, and production reliability. Mentored junior developers and advocated for modern practices (Clean Code, SOLID, TDD).

Senior Software Developer – Full-Stack at Onomatic

November 1, 2022 - October 31, 2024

Contributed to building and shipping a greenfield SaaS product, spanning frontend and backend development, automated testing, infrastructure management, data/analytics, R&D/prototyping, production troubleshooting, and SOPs/technical foundations.

Lead Web Developer / Web Developer – Backend / Full-Stack at Du Proprio / Espace Proprio

December 1, 2020 - October 31, 2022

Led web development efforts for legacy and modern web applications supporting real estate clients and internal processes. Defined and documented best practices, improved reliability of integrations, and reduced tech debt while evolving the architecture.

Programmer-analyst / Consultant – WebMethods, Java at Logimethods Inc.

October 1, 2017 - November 30, 2020

Provided specialized integration and middleware services for client digital transformation initiatives, focusing on data quality, interoperability, reliability, and resilience. Mentored junior consultants.

Programmer-Analyst / Developer – WebMethods, Java at Peerless Clothing Inc.

November 1, 2013 - July 31, 2017

Developed and deployed enterprise architecture and integration software to support developers and business tools; improved data interchange and BI tooling; migrated and optimized webMethods ESB/EAI landscapes.

Teaching Assistant – Computer Science at Université du Québec à Montréal

January 1, 2014 - December 31, 2014

Supported and taught lab sessions in web programming for undergraduate computer science students; prepared practical examples; defined grading criteria and evaluated papers/exams.

Senior Business Analyst and Manager – Business Service at Rogers Communications S.E.N.C.

June 1, 2004 - August 31, 2013

Acted as subject matter expert in performance metrics; established and reviewed objectives; developed complex reporting solutions; recruited and managed a team of analysts; contributed to cost/revenue management and contact center system improvements.