Senior Engineer (Platform Engineering) in London

Our Mission At Omnea, we're reinventing how enterprise businesses operate, starting with the most painful parts: procurement – where a single purchase can drag on for months, trigger 50+ emails , and pull in Finance, Legal, Security, and IT just to get something approved.

Our AI-native platform connects every person, step, and system so buying is fast, safe, and efficient – one place to request, automated approvals and renewals, real-time supplier risk, and complete spend visibility.

Our team previously scaled Tessian ( cybersecurity tech, backed by Sequoia, Balderton, Accel , acquired post-Series C), and our team includes ex-founders operators who've grown unicorns, shipped world-class products, and executed at the highest levels.

Why We Need a Platform Engineer Now
Omnea deploys multiple times a day, serves enterprise customers who expect rock-solid reliability, and is scaling 10x.

We're adding a hands-on Platform Engineer to the team to improve our CI/CD, scale our serverless infrastructure, strengthen observability, and make every product engineer more effective.

We're hiring at both Level 3 (Senior) and Level 4 (Lead) .

For calibration, candidates typically bring 5+ years of platform engineering experience in high-growth, cloud-native Saa S environments, but we care more about impact than years.

You'll join an experienced platform team and contribute across the full stack, from infrastructure-as-code and deployment pipelines to developer tooling and occasionally product features.

Design and evolve our AWS serverless architecture (including Lambda, Dynamo DB, Aurora, Event Bridge) for 10x growth, multi-region HA, and data residency requirements.

Own CI/CD and deployment.

Build and improve our deployment pipelines (Git Hub Actions), infrastructure-as-code (Pulumi), and release tooling so product teams can ship faster and safer.

Build out monitoring, alerting, and debugging across the stack using Datadog.

Build internal tooling, automate toil, and remove friction so engineers spend more time shipping product and less time fighting infrastructure.

Contribute production-ready Type Script across infrastructure and product features; Everything serverless and Ia C-driven (AWS, Pulumi, Type Script end-to-end).

Your work determines how fast and safely the whole engineering org ships.

As we 10x revenue, you'll evolve infrastructure for multi-region HA, data residency, and performance at scale.

The reliability and speed you build is what lets us win and keep enterprise accounts.

Platform engineer & builder.

You design reliable infrastructure and write clean production code (Type Script or similar).

Deep knowledge of AWS (Lambda, Dynamo DB, Event Bridge, IAM, networking) or equivalent cloud-native experience.

You iterate quickly, ship pragmatically, and automate everything.

Experience building internal developer platforms or tools adopted org-wide.

Open-source contributions to infrastructure or developer tooling projects.

You can learn more about Engineering at Omnea and our hiring process via our R&D Candidate Hub here.

At Omnea, we embrace diversity.

We're commercial, ambitious and we don't pretend otherwise!

We're actively seeking folks looking to make the most of a career-defining opportunity, with the hunger to be part of building something really impressive .

We sometimes use AI note-takers to help us transcribe interview notes, so we can be more present in your interview.

If you'd like to opt out of us using automatic transcribers, please note this in the free text field in your application, otherwise we'll take your application as confirmation that you're happy for us to use notetakers (whether added to video calls or in the background).

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