Founding Engineer, Infrastructure & Platform

Techtreehq — United Kingdom · Posted ~3 hours ago

Lead Full-time Onsite Visa History ✓

Skills

Backend engineering Cloud infrastructure Platform engineering Security Compliance Infrastructure architecture

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Summary ✨ AI‑Generated

Join an early-stage company as a founding infrastructure and platform engineer, owning the backend services and cloud foundations behind a security-sensitive enterprise platform. You will shape architecture, build core infrastructure, and help establish the security and compliance foundations required by highly regulated customers.

Highlights

Founding-level ownership of backend and cloud foundations at an early-stage company, with meaningful influence over architecture, security, compliance, and platform foundations.

Description

This is a role that TechTree is recruiting for on behalf of one of our clients. TechTree is an AI-driven recruitment platform working with high-growth companies. When you apply, our AI Agent matches you not just to this role, but to other relevant opportunities across our network, so one application can unlock multiple roles. Founding Engineer, Infrastructure & Platform — Own the backend and cloud foundations at a seed-stage AI risk company. London, on-site. Pre-Series A equity. A seed-stage company is building agent-native risk infrastructure for enterprises in financial services, regulated technology, and healthcare. Seven-figure revenue within months of launch. Founders from Palantir, Oxford, Stanford, and ETH. Backed by angels from Meta, Isomorphic Labs, Palantir, and SpaceX. You build the backend services at the core of the platform and own the foundations on which they run. The security and compliance teams at banks and hospitals won’t sign until they’re convinced the platform underneath is as trustworthy as the work it produces. You own that layer. What You’ll Do → Build and own backend services — APIs, async workflows, data models — with the same care as the infra under them → Shape the Azure foundations: Container Apps, Service Bus, Front Door, Entra ID, all under Terraform → Design multi-tenant isolation patterns across compute, data, and network layers → Own deployment pipelines, observability stack, and on-call posture as the platform scales → Build platform capabilities the team depends on: long-running agent jobs, large document processing, secure tool execution → Drive compliance evidence automation (SOC 2, ISO 27001) What We’re Looking For → 6+ years backend engineering with deep infrastructure experience → Significant Azure time (AWS/GCP fine with appetite to ramp) → TypeScript ideally, or adjacent with willingness to switch → Production IaC (Terraform), CI/CD, container orchestration → Strong security posture: IAM, network segmentation, secrets, supply chain → End-to-end compliance ownership — designing controls, not just answering about them → Operational maturity: you’ve been on-call for systems that mattered → King’s Cross, London — in-person by default Bonus: AKS, Service Bus, or Front Door at scale multi-tenant SaaS isolation audit-sensitive infrastructure Offers: top decile London market comp + meaningful EMI-eligible equity paid on-site work trial serious AI tooling and API budgets What is TechTree? TechTree combines AI agents with a human support team to give candidates a better, more transparent hiring experience. Our AI Agent gets to know your background, experience, and what you’re optimising for. It continuously matches you to live roles across our network where there’s genuine alignment, not just keyword overlap. Our Human Team is there to support you through the process — answering questions, adding context, and making sure you’re never left guessing or ghosted. We only post real jobs. Every role on TechTree is a live, active hire.