Overview
Queen Square Recruitment is working with a global IT partner and seeking a Senior API Engineer.
Responsibilities
* Design, develop, and maintain secure and scalable APIs and microservices.
* Refactor existing APIs to improve performance and developer experience.
* Automate testing (unit, contract, integration) using pytest, JUnit, Go testing, Postman / Newman.
* Implement CI / CD pipelines (GitHub Actions, Jenkins, GitLab CI).
* Deploy on Kubernetes and monitor using OpenTelemetry, Prometheus, Grafana.
* Collaborate with Frontend, DevOps, and Product teams.
* Participate in code reviews and maintain documentation (Markdown, Swagger-UI).
Tech & Tools
* Languages :
Python, Java, Go
* Testing :
pytest, JUnit, Go testing, Postman / Newman
* CI / CD :
GitHub Actions, Jenkins, GitLab CI
* Monitoring :
OpenTelemetry, Prometheus, Grafana
* Databases :
PostgreSQL, Redis, MongoDB
* Security :
JWT, mTLS
* Other :
REST, semantic versioning, API design
Essential Requirements
* 5+ years of experience developing production APIs and microservices
* Proficiency in at least two of the following languages :
Python, Java, Go
* Strong understanding of REST, API security, and software architecture
* Experience with relational and NoSQL databases
* Solid testing practices and high code coverage
* Bachelor\ 's degree in Computer Scienceor equivalent experience
* English proficiency (B2 / C1 Level)
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