Loïc Aublet

Backend Engineer — System Design & Architecture

Paris · dev@loicaublet.com

8 years of software engineering experience, from fullstack to backend and architecture. For the past 3 years working on Blank (Crédit Agricole group), a French neobank for professionals. What drives me: system design, software architecture, and technical team organization — building end-to-end systems, cleaning up existing codebases, and helping teams level up. I built this experience on a TypeScript / AWS stack, and I’m learning Go to expand beyond the Node ecosystem.

Experience

Backend Engineer — Blank (Crédit Agricole group)

May 2023 – Present · Paris

• Designed and shipped the Case Manager in production: data modeling, service boundaries, and dev/data/product orchestration.
• Maintained continuity for the Bank XP squad reduced to 2 people for 6 months (attrition, platform migration), preserving stability and service quality.
• Technical referent for the serverless TypeScript/AWS stack: onboarding and mentoring new developers, explaining architecture decisions and existing constraints.
• Documented critical business processes that had never been formalized (e.g. monthly account statement generation).
• Designed a technical interview framework to standardize candidate evaluation.

Backend Developer — STMicroelectronics

Sept. 2021 – Jan. 2023 · Paris

• Adapted the application stack to the AWS production environment and designed a new microservice in NestJS.
• Led AWS Lambda architecture research for a serverless backend rewrite.

Fullstack Developer — Wisebatt

Nov. 2019 – Sept. 2021

• Designed a series of supplier data aggregation services (Node.js, MongoDB aggregation pipeline).
• Ported the multi-service stack to Docker and set up on-premise GitLab CI/CD; researched microservices architecture.
• Complete frontend rewrite in Angular 9 (interactive schematic component, D3.js visualizations).

Fullstack Developer — Linagora

Sept. 2018 – Oct. 2019

• Developed features and tests on OpenPaaS, an open-source alternative to G Suite, working on a large existing codebase.

Skills

• Languages: TypeScript, JavaScript · Go (learning)
• Backend: Node.js, NestJS · API design and refactoring
• AWS: S3, SQS, SNS, Lambda, CDK
• Databases: DynamoDB, MongoDB, Redis
• Tools: Neovim, Linux, Docker, GitLab CI/CD
• Frontend (fullstack background): React, Angular, Tailwind

Interests & Growth

System design and software architecture (reading: Designing Data-Intensive Applications, Domain Modeling Made Functional). Currently deepening DDD, hexagonal architecture, functional core, and leveling up on Go.

Education

• Web Developer Bootcamp — Simplon.co (2018)
• MIEF Bachelor’s degree — IUT d’Évry (2012)

Languages

French (native) · English (C1)