This position is no longer available.

API Software Engineer (located in France) F/H

Permanent contract
Salary: Not specified
Education: Master's Degree


Interested in this job?

Questions and answers about the job

The position

Job description

Our company is on a mission to enhance our API by implementing engineering-wide standardization, API contract testing, tooling to detect breaking changes, and by bringing the API specification and code closer together. We also want to improve our developer portal by adding additional implementation examples to increase user engagement. We anticipate significant improvements, including a 20% increase in user engagement, a 30% reduction in API response times, and a 15% boost in overall customer satisfaction. To achieve these goals, we are seeking a dedicated engineer to focus on our API and to lead these initiatives. The ideal candidate will be hands-on building automation tooling, able to work with other engineers to onboard them to the best practices, and rolling out engineering-wide changes that will have positive impacts on all teams.


Scope of Changes

  1. Standardize on a single API. We need to rationalize what endpoints should be public to focus on an experience driven API
  2. Update the API documentation site to include fully documented examples of implementations for multiple use cases that our customers have with our API
  3. Implement API Contract testing automation
  4. Add automation to our CI/CD pipeline to automatically detect breaking changes

Primary focus

  • Bachelor's degree in Computer Science or related field (or equivalent experience)
  • Framework .NET (Experienced)
  • NodeJS / Express (Intermediate)
  • Proven experience in API documentation and developer portal management
  • Intermediate experience with API Contract testing
  • Familiarity with rate-limiting and Kong is a plus
  • Proficiency in standardizing API practices, versioning, and security
  • Experience with SDK development or automation
  • Strong technical background with expertise in API design and implementation
    • Documentation with OpenAPI 3
    • API code generation with OAS3
    • Experience with GraphQL a plus


  • Exposure to kubernetes or similar infrastructure orchestration
  • Exposure to containers (docker)


  • Knowledge of version control software with git (Intermediate)
  • Senior level knowledge of the principles of unit testing
  • Intermediate level experience with cloud environments (architecture, deployments, services)
  • Senior level knowledge of agile methodologies, or can be an advocate of agile methodologies
  • Knowledge of good development practices (SOLID, KISS, YAGNI, etc) (Intermedia)
  • Comfortable working in English, and writing public facing documentation in English.


  • Offices in the heart of Lyon and Paris, 10-15 minutes from train stations
  • Flexible working hours ("forfait jour")
  • A real opportunity to join a French scale-up that has been growing rapidly for 8 years and is the leader in its market 🚀
  • An empowering, fast-paced working environment, conducive to pro-activity
  • Development prospects presented as soon as you join DataGalaxy
  • Attractive remuneration based on your performance, responsibilities and potential
  • Remote at will (a location in the Rhône Alpes region or Paris is strongly preferred)🔥
  • Apicil health insurance
  • Ticket restaurant (Swile card 9€/day)
  • Public transport reimbursed at 50%.
  • Daily coffee and snacks
  • Quarterly team events and seminars

Want to know more?

These job openings might interest you!

These companies are also recruiting for the position of “Back-end Development”.

  1. ORIS