Senior Platform Engineer (API & Gateway - Data & AI Platform)

• 5+ years of experience in platform or software engineering with expert-level proficiency in Python
• Hands-on experience building APIs and SDKs on top of distributed services, including client libraries
• Proficiency in FastAPI, REST/async design, API versioning, and contract testing
• Expertise in designing gateway architectures, orchestration, API integration, and routing
• Knowledge of IAM concepts including RBAC/ABAC least-privilege models, managed/workload identity, and token delegation flows
• Hands-on experience with Azure and GCP, including private endpoints and multi-cloud service integration
• Skills in CI/CD and automation using Azure DevOps or GitHub Actions
• Familiarity with observability tooling such as OpenTelemetry, Prometheus, Loki, Tempo, and Grafana
• Ability to unify fragmented service landscapes into one coherent product
• English proficiency at B2 level or higher

• Design and build APIs and SDKs on top of distributed platform services using Python/FastAPI
• Define REST/async API design standards, versioning strategies, and contract testing practices
• Develop client libraries providing consistent access to platform services
• Architect and maintain a gateway layer that fronts platform services and removes fragmented access
• Establish orchestration and routing patterns unifying independent services
• Implement RBAC/ABAC least-privilege authorization models at the gateway level
• Manage identity and token flows including managed/workload identity and delegation
• Build and maintain CI/CD pipelines using Azure DevOps or GitHub Actions with a test-first approach
• Produce clear service contracts and documentation
• Integrate services across Azure and GCP using private endpoints for secure communication
• Implement observability practices with OpenTelemetry, Prometheus, Loki, Tempo, and Grafana
• Use metrics, traces, and logs to debug and tune performance in production environments

EPAM is a global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and startups. This position is open for remote work within Poland. Benefits listed are available to employees only. EPAM also works with contractors under individually agreed B2B cooperation agreements. Only selected candidates will be contacted.