Api Developer

Api Developer
Porto
Porto, Porto District, Portugal

Senior API Developer | Fin
Tech | Porto OR Braga(Hybrid) | €75k + bonus

About the Company:

Our client is a global Fintech platform enabling millions of users to trade digital assets across multiple blockchain networks. They’re building scalable, regulated infrastructure to make Web3 finance accessible to businesses and individuals worldwide.

The Role:

As a Senior API Developer, you’ll help launch a new
- facing product line, owning the design and delivery of
- scale APIs. You’ll make key architectural decisions and build
- critical systems used by millions.

What You’ll Do:

- Design and build scalable REST and/or Graph
QL APIs

- Make core architectural and technical decisions

- Develop
- performance,
- grade services

- Collaborate closely with Product and Engineering teams

- Own APIs
-
- end, from design through production

- Support automation, orchestration, and
- call where needed

What We’re Looking For:

- 5+ years building Saa
S or API-driven platforms

- Experience with public APIs in fintech or financial services

- Strong knowledge of API design, security, and versioning

- Hands-on experience with microservices architectures

- Confident communicator with strong written and spoken English

Stack:

Node. Js | g
RPC | Postgre
SQL | Docker | Kubernetes | AWS

Bonus:

Crypto knowledge,
- source contributions, or technical writing.

• Salary up to €75k + bonus
• Hybrid x2 days in office per week, in either Porto or Braga

Interested in shaping the future of Fintech? Apply now with your CV.