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We are seeking an experienced, hands-on API Engineer to design, build, and operate APIs and the underlying platform infrastructure at Alter Domus. You'll work at the intersection of software engineering and platform operations—building well-crafted APIs while ensuring they run reliably at scale on Kubernetes.
Job Responsibility:
Design and develop production-grade APIs using Python and FastAPI, following RESTful principles and OpenAPI specifications
Build foundational platform APIs that serve as building blocks for the wider organization reusable services that multiple teams and products depend on
Establish and maintain API standards across the organization versioning strategies, error handling patterns, authentication flows, and documentation practices
Build shared libraries and tooling that help other teams deliver consistent, high-quality APIs
Review API designs and implementations, providing guidance to ensure adherence to platform standards
Build and maintain Kubernetes infrastructure for hosting APIs, including deployments, services, networking, and observability
Create and optimize CI/CD pipelines (GitHub Actions, Azure DevOps) for automated testing, building, and deploying APIs
Implement infrastructure-as-code practices using Terraform and Helm
Configure and operate API gateway solutions for traffic management, rate limiting, and security policies
Monitor platform health and proactively address performance and reliability issues
Work cross-functionally with development, security, and operations teams to align platform capabilities with business needs
Troubleshoot complex issues spanning application code, infrastructure, and networking layers
Requirements:
5+ years experience developing APIs in Python, with hands-on FastAPI experience
Strong understanding of API design principles REST conventions, OpenAPI/Swagger, versioning, error handling, pagination
Solid experience operating Kubernetes in production deployments, services, ingress, networking, troubleshooting
Experience building CI/CD pipelines (GitHub Actions or Azure DevOps)
Familiarity with Docker and infrastructure-as-code (Terraform, Helm)
Strong problem-solving skills and attention to detail
Fluent in English
Nice to have:
Experience with API gateway platforms (Kong, AWS API Gateway, Azure APIM)
Familiarity with AWS and/or Azure cloud environments
Background in platform engineering or developer experience roles
Experience establishing API governance practices across an organization
What we offer:
Support for professional accreditations such as ACCA and study leave
Flexible arrangements, generous holidays, plus an additional day off for your birthday
Continuous mentoring along your career progression
Active sports, events and social committees across our offices
24/7 support available from our Employee Assistance Program
The opportunity to invest in our growth and success through our Employee Share Plan