Forward Deployed Engineer

antithesis
London

About Antithesis

We’re on a mission to redefine how modern distributed systems are tested and released. Our platform is trusted by engineering teams who demand rock-solid reliability, scalable performance, and deep technical visibility. Our platform doesn’t just assure system correctness and reliability, it exists because developers need something better. If you’ve ever experienced the pain of a production outage, had a bad week on-call, or had a release delayed by weeks because of one killer bug – you’ll understand exactly why we’re doing what we do. If you're passionate about developer-first products, system resilience, and correctness, we’d love to talk.

About the Role

The best way to learn what our platform should do next is to sit next to the people using it. That's this job. You'll embed with our customers, find where shipping reliable software is still too hard or too slow, and help build what Antithesis does next.

What You’ll Do

Almost every company we work with shows up with some version of this:

"We're building a new system that we need to ship fast, but it can't fail. So every big change turns into weeks of careful review before we trust it. How can we use Antithesis to do this?"

You're the person who shows up. From day one you help a customer get their system running inside Antithesis, make sure it's catching the bugs they care about most, chase down the real ones it finds, and fold Antithesis into how they ship: their CI, their reviews, the way their agents write and check code. When it works, they merge big changes fast and trust that what they shipped holds.

That's the customer-facing half. The other half is why we send an engineer. You notice what was slow, manual, or missing, and propose a fix. You work with our platform engineers to prototype it: a sharper way to find bugs, an easier way to fix them, or an agent skill that iterates on the results. Then you take it back to your customer to validate that it solves their problem. A lot of what makes Antithesis good today came out of that loop.

What We Need:

  • You've spent real time building or operating serious systems software, where correctness matters and the failures are subtle. You know how systems break under concurrency, faults, and load in ways no test caught. The domain matters less than the instinct for where things go wrong.

  • You've worked with customers as an engineer. You've been in the room where something's broken and you're the one who has to help, and you didn't hate it.

  • You can read an unfamiliar codebase, instrument it, write a test, and debug something you've never seen before.

  • When you hit a rough edge, you'd rather fix it than route around it. Here, your fix might ship to everyone.

  • You can explain hard things to non-technical people without lecturing.

  • You're up for five days a week in the office (DC, London, or SF) and occasional travel to our customers' offices.

Bonus

Experience with fuzzing, property-based testing, or chaos engineering. Time building the kind of software our customers build: fintech, databases, blockchain, event streaming, cloud infra, trading. Building internal tools for other engineers. A startup where the job changed every six months.

Why this one's different

Most customer-facing engineering jobs stop at deployment. Most jobs that let you shape a new platform keep you far from the people using it. This one does both: close enough to real systems to see what's missing, close enough to the product to build it. If that's the job you've been looking for, let's talk.

Posted 2026-08-09

Recommended Jobs

Divisional Accountant LBS-012 (Project)

Southwark Council
Southwark, Greater London

Job Category : Financial Location : 160 Tooley Street, Southwark Council Hours Per Week : 36.00 Start Date : Immediate Start Start Time : 09:00 End Time : 17:00 Salary: £206.75 per d…

View Details
Posted 2026-05-30

Accounts Assistant

Leytonstone, Greater London

This is an extremely varied and interesting role that will provide exposure to all aspects of  Accountancy and Finance within a busy, commercially focussed and enterprising property group. Y…

View Details
Posted 2025-09-10

PERM Finance Manager (Commercial/Capital)

London Borough of Islington
London

Job Category : Finance Category : Permanent Recruitment Location : 222 Upper Street, London Borough of Islington Start Date : Immediate start Base Salary : £62,457.00 Top Point Salary…

View Details
Posted 2026-05-30

Science Technician | Studio School | Southwark

Marchant Recruitment
London

CORE PURPOSE We require a technically skilled, safety-conscious Science Technician to support our practical science curriculum across Key Stage 4 and Key Stage 5. The role involves managing labora…

View Details
Posted 2026-05-30

Economics ECT - Boys’ School in Kingston (January Start)

Marchant Recruitment
Kingston upon Thames, Greater London

Economics ECT – Boys’ School in Kingston (January Start) Location: Kingston Start Date: January 2026 Contract Type: Full-time, Permanent Salary: Paid to scale An academically driven …

View Details
Posted 2025-11-28

HR Manager - Harrow Independent School

Marchant Recruitment
Harrow, Greater London

Location: Harrow Status: Leading Independent School Start Date: ASAP Start – Permanent, Full-Time The Opportunity This prestigious independent school in Harrow is seeking a meticulous …

View Details
Posted 2026-01-21

Software Engineer - Platform Security

Neo4j
London

About Neo4j: Neo4j is the graph intelligence platform that transforms data into knowledge to power the next generation of intelligent applications and AI systems. It includes enterprise-ready know…

View Details
Posted 2026-06-27

SEN TA | Richmond

Marchant Recruitment
Richmond, Greater London

Are you an experienced and compassionate SEN TA who wants to make a measurable difference from January 2026? Would you like to work in a Richmond primary where personalised support and multi-discipli…

View Details
Posted 2025-12-06