Senior API Engineer

Queen Square Recruitment is working with a global IT partner and seeking a Senior API Engineer.

The Candidate must

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 HTTP, REST, API security, and software architecture Experience with relational and NoSQL databases Solid testing practices and high code coverage Bachelor's degree in Computer Science or equivalent experience English proficiency (B2 / C1 Level)

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