Lead API Engineer (M/K)

Lead API Engineer (M/K)

Miejsce pracy: Katowice

Technologies we use

Expected

• AWS
• API Gateway
• Lambda
• ECS
• C++
• .NET
• Python
• TypeScript
• Terraform
• OAuth2

About the project

Define and drive an end-to-end API strategy for a modern, cloud-native organisation.

Shaping API standards, architecture, governance, and tooling to enable secure, scalable, and product-grade APIs across internal and external consumers.

Hands-on architecture role combining deep platform engineering with cross-team leadership to deliver a unified, contract-first API ecosystem built on AWS.

Your responsibilities

• Own and evolve the target API architecture across domains using AWS-native services.
• Define contract-first API standards (OpenAPI/GraphQL), versioning, schema governance, and CI/CD quality gates.
• Design and govern API Gateway patterns, routing models, Terraform modules, and policy-as-code guardrails.
• Architect identity and security models, including OAuth2/OIDC, JWT, AWS SigV4, rate limiting, and WAF controls.
• Enable teams through paved-road service templates (C++, .NET, Python, TypeScript) with built-in auth, observability, and pipelines.
• Define integration patterns for event-driven and synchronous APIs, ensuring reliability and backward compatibility.
• Establish observability and reliability standards (logs, metrics, tracing, SLOs).
• Lead API modernisation, reducing technical debt and aligning legacy APIs with new standards.
• Partner with engineering, product, security, and SRE teams to drive adoption and best practices.

Employer requirements

• Strong experience designing scalable API platforms on AWS (API Gateway, Lambda, ECS/Fargate, ALB, Cognito, EventBridge, IAM).
• Experience in C++, .Net (Python will be a plus).
• Experience in TypeScript.
• Strong knowledge of contract-first API standards like OpenAPI and GraphQL.
• Deep knowledge of contract-first API design, versioning, and schema governance.
• Expertise in authentication and authorisation (OAuth2/OIDC, JWT, SigV4).
• Hands-on experience with Terraform and infrastructure-as-code.
• Solid understanding of CI/CD, DevOps, security automation, and dependency management.
• Experience with event-driven architectures and observability tooling.
• Proven ability to define platform-wide standards and lead large-scale architectural change.
• Experience creating opinionated templates and enablement tooling.
• Strong stakeholder communication and ability to influence across teams.

Work organization

Work style

• you focus on a single project at a time
• you have influence on the choice of tools and technologies
• you have influence on the technological solutions applied
• you have influence on the product
• scrum

Team members

• backend developer
• architect
• devOps
• product owner
• project manager

The way of working on the project

• code quality measures
• event modeling
• DevOps
• issue tracking tools
• integration tests
• performance tests
• test automation

Development opportunities

• external training
• mentoring
• space for experimenting
• substantive support from technological leaders

What employer offers

• International, collaborative work environment
• Exposure to large-scale cloud and integration platforms
• Strong learning and development support
• Competitive compensation and benefits

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