Freelancer profile translated to English.

Description

I help fintechs and product teams design, stabilize, and scale critical backend systems — where design errors are costly: payments, bank aggregation, regulated environments.

What I handle:

— Distributed systems architecture and large project design: splitting into bounded contexts (strategic DDD), event storming, context mapping, topology choices (modular monolith, event-driven, microservices when justified)

— Payment and Open Banking API design and scaling: payment initiation, account aggregation, banking connectivity (PSD2), webhooks and idempotence at scale

— Technical compliance of APIs in regulated environments (ACPR, GDPR): audits, traceability, sensitive data management

— Tech leading: upskilling backend teams, architecture reviews, implementing standards (testing, observability, CI/CD)

Why me:

5 years at Bridge (formerly Bankin'), an Open Banking platform connected to 200+ banks, including 2 years as Tech Lead. I designed and operated payment APIs used in production by companies like Qonto, Pennylane, and Sage — systems where availability and accuracy are non-negotiable.

Main stack: Node.js, TypeScript, PostgreSQL, AWS, Kubernetes, event-driven architecture.

Engagement formats: architecture and scoping of new projects, audit of existing architecture (actionable deliverable in 5–10 days), long-term Tech Lead support. Full remote, occasional travel possible (kick-offs, design workshops).

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Orléans (up to 40km), Paris (up to 20km), Évry (up to 20km)

Bridge
Tech Lead
February 2024 - February 2026 (2 years)
Technical leadership of a team of developers on the core services of the Open Banking platform. Architecture definition, code reviews, team upskilling. Guarantee of API quality, scalability, and security in a regulated environment (licensed payment institution regulated by ACPR).
AWS Typescript External API Integration REST Testing and Quality Assurance
Bridge
Backend Developer
February 2021 - February 2024 (3 years)
Paris, France
Development of Bridge's Open Banking APIs, a platform connected to over 200 financial institutions in Europe. Design and evolution of account aggregation services, payment initiation (DSP2/PSD2), and data enrichment. Worked on high availability issues, financial data security, and regulatory compliance (ACPR). Demanding fintech environment with clients like Qonto, Pennylane, Sage, or Toyota.
External API Integration Node.js PSD2 eIDAS Java
Make Me Reach
Fullstack Developer
January 2019 - February 2021 (2 years and 1 month)
Paris, France
Development and evolution of the SaaS platform for cross-channel advertising campaign management (Facebook Ads, Google Ads, Snapchat, TikTok…), used by clients like Disney and Havas Media. Design of real-time analytics features, reporting automation, and campaign optimization. JavaScript-oriented stack (React, Node.js). Agile product team work on a high-traffic product with performance and data reliability challenges.
AngularJS Vue.js Typescript Node.js JavaScript