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

Quick Facts

• Senior Platform Engineer focused on the API & Gateway layer for a Data & AI Platform

Description

Design and build the API and Gateway layer that unifies the Data & AI Platform, turning a fragmented service landscape into one coherent, secure, and observable product. You will own API/SDK development, gateway orchestration and routing, edge authorization (RBAC/ABAC), identity and token flows, multi-cloud service integration (Azure + GCP), and production observability. Work with test-first CI/CD and clear service contracts to support platform adoption.

Responsibilities

• 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 for consistent, reliable access to platform services
• Architect and maintain a gateway layer that fronts platform services and removes direct fragmented access
• Establish orchestration and routing patterns to converge independent services into one cohesive product
• Implement RBAC/ABAC least-privilege authorization models at the gateway level
• Manage identity and token flows (managed/workload identity and delegation) to keep downstream services simple
• Build and maintain CI/CD pipelines using Azure DevOps or GitHub Actions with a test-first approach
• Produce service contracts and documentation to support platform adoption
• Integrate services across Azure and GCP using private endpoints for secure service-to-service communication
• Implement observability using OpenTelemetry, Prometheus, Loki, Tempo, and Grafana
• Use metrics, traces, and logs to debug and tune production performance

Requirements

• 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, including orchestration, API integration, and consistent 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-to-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 translate a fragmented service landscape into one coherent, unified product
• English proficiency at B2 level or higher

Benefits

• Hybrid by design mode with the opportunity to work remotely within Poland
• Chance to work abroad for up to 60 days annually; business-driven relocation opportunities
• Career development programs, thought leadership, mentoring, soft skills, and well-being programs
• Certification support (Anthropic, Gemini, GCP, Azure, AWS)
• English classes
• Stable pay
• Employee Stock Purchase Plan with a 15% discount
• Benefits package (health insurance, multisport, shopping vouchers)
• Referral bonuses up to $2,000
• Office perks (entertainment/relaxation zones, table tennis/football, free snacks, coffee)
• Corporate, social and well-being events
• Contractors welcome; B2B terms agreed individually