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Backend engineering & cloud architecture

Benjamin Hamon

Senior Software Engineer

7+ years building backend systems, with a focus on TypeScript, Node.js and cloud infrastructure. I take critical services from architecture to production, combining hands-on engineering, product thinking and teamwork.

Paris, FranceLinkedIn

Available now · Freelance & contract opportunities

Experience

Upflow

Aug 2025 - Feb 2026

Senior Backend Engineer

Financial software integrations on a Node.js / Express backend with PostgreSQL hosted on GCP.

  • Built and maintained integrations with NetSuite, Pennylane and other financial products to synchronize accounts receivable data.
  • Worked on the Stripe integration for customer payments.
  • Contributed to the development of the public API and its documentation.

EnvironmentNode.js · Express · PostgreSQL · GCP · NetSuite · Stripe · Pennylane

Blank · Crédit Agricole Group

Nov 2020 - Feb 2025

Lead Backend Developer

Business banking for independent professionals. Helped scale the platform from its first active users to 20,000+

  • Designed and delivered billing, referral, and compliance scoring services, from architecture through deployment.
  • Designed and delivered KYC/KYB integrations with external services like Ubble, Pappers, and ComplyAdvantage.
  • Built IaC with Serverless Framework and AWS CDK, and set up GitLab CI deployment pipelines for end-to-end testing, staging, and production.
  • Led the integration of the new Core Banking System in the existing codebase.
  • Managed around 4 developers and helped grow the engineering team from 5 to 15 through technical interviews, hiring and onboarding.
  • Contributed to the HubSpot CRM synchronisation engine.

EnvironmentTypeScript · Node.js · AWS Lambda · DynamoDB · SNS / SQS · CDK · Serverless Framework · Jest · GitLab CI/CD · Nx

ip-label

Jul 2018 - Oct 2020

Full-stack Developer

Backend-focused full-stack development, spanning APIs and administration interfaces.

  • Built Node.js / Express microservices and APIs backed by PostgreSQL.
  • Developed Vue.js administration interfaces and contributed to continuous integration.

EnvironmentNode.js · Express · PostgreSQL · Vue.js · AWS · GitLab CI/CD · Jenkins · Nginx

Neocity

Oct 2017 - Apr 2018

Full-stack Developer · Internship

Mobile applications for cities and local communities.

  • Developed APIs, administration interfaces and mobile applications with Angular, Ionic and Node.js.

EnvironmentAngular · AngularJS · Ionic / Cordova · Node.js · Sails.js · LoopBack · MongoDB