Joffrey Fortin - Flutter Engineer & Backend Engineer (NestJS, PostgreSQL) at Polites

Joffrey Fortin

Flutter Engineer & Backend Engineer (NestJS, PostgreSQL) at Polites

Paris, Ile-de-France

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Summary

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Senior

🎓

Top School

Joffrey Fortin is a versatile Flutter and backend engineer with 8 years of experience building high-impact mobile products and APIs for large French organizations and startups. He designs clean, testable architectures (Clean Architecture, BLoC, DI) and ships cross-platform Flutter apps while also implementing robust NestJS/PostgreSQL backends with strong security practices (PII encryption, ownership middlewares, Zod validation). His work spans the full stack—GUI, analytics, push/deeplinks, payments (Stripe), and operational features like migrations and automated moderation—evidencing a focus on reliability at scale (example: SNCF Connect features used by hundreds of thousands daily). He frequently leads projects as a mobile architect and mentors teams through Dart/Flutter training, bringing embedded systems roots (ESIEE) and C/C++ experience on avionics and drone monitoring to bear on performance-sensitive problems. Notably, he blends product-focused UX improvements (swipeable multi-step flows, shareable QR/image exports) with backend resilience (rate limiting, AES-256 encryption) to deliver end-to-end solutions. Based in Paris, he combines hands-on coding with architecture and teaching, and maintains an active portfolio and GitHub demonstrating practical, production-grade implementations.

8 years of coding experience

7 years of employment as a software developer

BTEC Higher National Diploma (DUT), Electrical Engineering and Computer Science, BTEC Higher National Diploma (DUT), Electrical Engineering and Computer Science at CY Cergy Paris Université

Accelerated Certificate Program, Project Management, Accelerated Certificate Program, Project Management at University of California, Irvine Division of Continuing Education

A levels (Baccalauréat Scientifique), A levels (Baccalauréat Scientifique) at Jules Ferry High School

Engineer's degree, Embedded systems, Engineer's degree, Embedded systems at ESIEE PARIS

French, English, Spanish

Stackoverflow

Stats

419reputation

55kreached

4answers

2questions

Github Skills (66)

windows9

android9

flutter9

dart8

pattern8

firebase8

desktop8

ios8

macos8

cross-platform8

push-notifications7

storage7

crashlytics7

firestore7

google7

Programming languages (2)

JavaScriptDart

Github contributions (5)

fortinjoffrey/flutter_basics_samples

Jun 2021 - Mar 2025

Contributions:178 pushes, 119 branches in 3 years 10 months

fortinjoffrey/swift_Instagram_Clone_Firebase

Dec 2019 - Aug 2020

Contributions:71 commits, 65 pushes, 1 branch in 8 months

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