Lead Software Engineer (API) (m/k)

Recruitment for

Technologies we use

About the project

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 (.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).
• 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.
• Hands-on builder with a pragmatic approach.
• Strong focus on security, automation, and API quality.
• Comfortable modernising legacy systems while designing for scale.

Work organization

Work style

What employer offers

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