Senior Platform Engineer (API & Gateway)

Quick Facts

• Role: Senior Platform Engineer (API & Gateway) for a Data & AI Platform

Description

Design and build APIs and the gateway layer to unify a fragmented Data & AI service landscape into a coherent, secure, and observable product. You will develop API/SDK standards, implement orchestration and routing, establish least-privilege authorization at the gateway, and manage identity and token flows. You will also deliver CI/CD pipelines, integrate services across Azure and GCP with private endpoints, and implement end-to-end observability to debug and tune production performance.

Responsibilities

• Design and build APIs and SDKs using Python and FastAPI

• Define REST/async API standards, versioning strategy, and contract testing practices

• Develop client libraries for consistent access to platform services

• Architect and maintain a gateway that removes direct fragmented access

• Implement orchestration and routing patterns to converge independent services

• Implement RBAC/ABAC least-privilege authorization at the gateway

• Manage identity and token flows (managed/workload identity and delegation)

• Build and maintain CI/CD pipelines using Azure DevOps or GitHub Actions with test-first delivery

• Produce service contracts and documentation

• Integrate services across Azure and GCP using private endpoints for secure communication

• Implement observability with OpenTelemetry, Prometheus, Loki, Tempo, and Grafana

• Use metrics, traces, and logs to debug and tune performance in production

Requirements

• 5+ years of experience in platform or software engineering

• Expert-level proficiency in Python

• Hands-on API and SDK development on top of distributed services

• Proficiency in FastAPI and REST/async API design including versioning and contract testing

• Expertise in gateway architecture and consistent routing

• Knowledge of IAM concepts: RBAC/ABAC least-privilege, managed/workload identity, token delegation

• Hands-on experience with Azure and GCP including private endpoints

• CI/CD and automation using Azure DevOps or GitHub Actions

• Familiarity with OpenTelemetry, Prometheus, Loki, Tempo, and Grafana

• Ability to unify fragmented services into one cohesive product

• English proficiency at B2 level or higher

Benefits

• Hybrid work model with 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 and mentoring; soft skills and well-being programs

• Certifications (Anthropic, Gemini, GCP, Azure, AWS) and English classes

• Stable pay and Employee Stock Purchase Plan with a 15% discount

• Benefits package (health insurance, multisport, shopping vouchers) and referral bonuses up to $2,000

• Office perks and corporate/social/well-being events (entertainment and relaxation zones, table tennis, football, free snacks, coffee)