REALM
Senior IAM Developer
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Senior Backend Developer (IAM) - London (Hybrid, 3 days a week) - x3 openings
Up to £110K
We're hiring for a European AI cloud infrastructure company building next-generation, on-demand GPU compute - vertically integrated, running on 100% renewable energy, and growing fast. They've recently closed a funding round north of $150M and are sitting on a revenue run rate approaching nine figures, having grown roughly tenfold over the past couple of years.
They're live across dozens of markets globally, hold certified partner status with a leading GPU manufacturer, and maintain strong compliance credentials (SOC 2 and similar) - because when you're handling access to high-value compute at scale, identity and access management isn't an afterthought, it's core infrastructure.
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We're looking for three Senior Backend Developers to help shape how the IAM platform evolves across a diverse product portfolio (GPU instances, clusters, serverless compute, storage), rather than treating identity as a bolt-on to a single product line.
What you'll work on:
- OAuth 2.0/2.1, OIDC, SAML 2.0, JWT, RBAC and ReBAC, MFA, TOTP, passkeys and FIDO2
- Workload and machine identity/service accounts
It's a genuinely unsolved space at this scale, so there's more design latitude here than most IAM roles can offer. Beyond pure IAM, you'll contribute to large-scale resource planning systems and internal tooling spanning multiple services, building APIs for fast, robust resource provisioning alongside our SRE and data centre teams.
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What we're looking for:
- 5 years+ as a backend Golang engineer, with strong hands-on IAM knowledge
- Proficiency with Go: web APIs, concurrency, performance optimisation, caching
- Experience with TypeScript (we also use Node and React)
- Experience designing, building, and maintaining microservice architectures
- Experience maintaining public RESTful APIs
- A TDD mindset
- Kubernetes/DevOps familiarity is a plus
Practicalities:
- Hybrid, a few days a week from the London office. Full-time, permanent.
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