Senior API Engineer/DevOps Engineer

ABOUT US

As a world leading provider of integrated solutions for the alternative investment industry, Alter Domus (meaning “The Other House” in Latin) is proud to be home to 90% of the top 30 asset managers in the private markets, and more than 6,000 professionals across 24 jurisdictions.

With a deep understanding of what it takes to succeed in alternatives, we believe in being different - in what we do, in how we work and most importantly in how we enable and develop our people. Invest yourself in the alternative, and join an organization where you progress on merit, where you can speak openly with whoever you are speaking to, and where you will be supported along whichever path you choose to take.

Find out more about life at Alter Domus at careers.alterdomus.com

Your role

We are seeking an experienced, hands-on Senior API Engineer to design, build, and operate APIs and the underlying platform infrastructure at Alter Domus. You will work at the intersection of software engineering and platform operations — building well-crafted, production-grade APIs while ensuring they run reliably at scale on Kubernetes.

This is a senior individual contributor role with a clear growth path into Solution Design. We are looking for someone who thinks architecturally, takes pride in building foundational systems that others build upon, and is ready to grow into broader technical leadership over time.

Your responsibilities

API Development & Standards

• Design and develop production-grade APIs using Python and FastAPI, following RESTful principles and OpenAPI specifications
• Build foundational platform APIs (tenant management, user APIs) that serve as building blocks for the wider organisation
• Establish and maintain API standards across the organisation — versioning strategies, error handling patterns, authentication flows, and documentation practices
• Design APIs with an architectural mindset — considering how they will evolve, scale, and be consumed by multiple teams over time
• Review API designs and implementations, providing technical guidance and mentoring to ensure adherence to platform standards
• Build shared libraries and tooling that help other teams deliver consistent, high-quality APIs

Platform & Infrastructure

• Build and maintain Kubernetes infrastructure — deploying, scaling, and operating your own services including deployments, services, ingress, and observability
• Deploy and configure APIs onto Kong API Gateway — defining routes, applying plugins, and managing authentication policies for your services
• Create and optimise CI/CD pipelines (GitHub Actions, Azure DevOps) for automated testing, building, and deploying APIs
• Implement infrastructure-as-code practices using Helm; Terraform experience is a plus

Operations & Collaboration

• 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
• Contribute to architectural discussions and solution design — this role is intended to grow into broader solution design responsibilities over time

Your skills

Must Have

• 5+ years experience developing APIs in Python, with strong hands-on FastAPI experience in production environments
• Strong understanding of API design principles — REST conventions, OpenAPI/Swagger, versioning, error handling, pagination, and multi-tenant patterns
• CKAD (Certified Kubernetes Application Developer) certification required
• Solid production experience with Kubernetes — deployments, services, ingress, networking, troubleshooting, autoscaling
• Experience with event-driven architectures and messaging systems (e.g. EventBridge, SQS, SNS, Azure Service Bus, Kafka)
• Experience building CI/CD pipelines (GitHub Actions or Azure DevOps)
• Familiarity with Docker and Helm
• Strong problem-solving skills, attention to detail, and architectural thinking
• Fluent in English

Nice to Have

• AWS or cloud platform experience (EKS, Lambda, S3, IAM) — plus
• GraphQL experience — strong plus; directly relevant to our platform API layer
• Terraform basics — enough to provision supporting resources for your APIs (databases, caches, queues) without depending on an ops team
• Experience with API gateway platforms — Kong, AWS API Gateway, or Azure APIM
• Background in platform engineering or developer experience roles
• Expe