Software Engineer, Agents

Nominal; Greater London; On-site; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Unlimited PTO

Free lunch, snacks, and coffee

Professional Development Stipend

Annual company retreat

Job summary

Nominal in Greater London is seeking a Software Engineer supporting agents to design and scale the Nominal MCP platform and its internal agent. You will architect the core platform and set technical direction for the team building on it.

You will ship agent tools, grow the Nominal MCP, integrate internal company tooling, and convert field patterns into scalable capabilities for customers. You will instrument outcomes and collaborate with customer engineers to understand real workflows.

Qualifications

• 4+ years as a strong backend or full-stack engineer.
• Hands-on experience shipping LLM features to real users: prompting, tool design, retrieval, and the debugging that comes after.
• Speed with good judgment: you ship small, measure, and iterate.
• Comfort with ambiguity and with owning a capability from idea to production.
• You build with modern AI coding agents and stay curious and open to better ways of working.

Responsibilities

• Build agent tools and workflows that ship to every customer, from turning test plans into automated checks to running investigations across tests.
• Grow the Nominal MCP so external agents can do more of the work our users do, safely and with the user's own permissions.
• Build the integrations our internal company agent needs to work across Nominal's own tools and teams.
• Turn the patterns forward-deployed engineers find in the field into capabilities every customer gets.
• Instrument what you ship, read the traces, and fix what the evals and users tell you.
• Work directly with engineers at customer programs to understand how the work is really done.

Skills

Backend engineering

Full-stack engineering

LLM features

Tool design

Retrieval

Tools

Claude Code

Cursor

Codex

Job description

About Nominal

Our mission is to accelerate how the world engineers new hardware. Nominal's connected test and operations platform powers the world's most advanced hardware programs and its most ambitious startups, from spacecraft, racecars, and autonomous vehicles to next-generation defense and energy programs. Our customers include Anduril, Shield AI, Hermeus, Albedo, Shinkei, and Pratt Miller Motorsports, as well as U.S. Navy and U.S. Air Force programs. Now we're expanding across the entire hardware lifecycle, building the foundation, AI-native applications, and agents that accelerate innovators' work and change what's possible to build.

We're backed by Sequoia, General Catalyst, Founders Fund, Lux Capital, and Lightspeed, and our team comes from SpaceX, Apple, Palantir, Anduril, Applied Intuition, and other leading companies.

About Hardware Intelligence

We're the team behind Nominal's agents, AI-native applications, and MCP, and its forward-leaning AI bets. Our mission is to unlock the bottlenecks of the hardware lifecycle with AI. Our agents reason over physical reality, from high-rate telemetry and test campaigns to designs and simulations, where real test results are the ground truth their work is checked against. We believe opinionated AI, built for the real work of hardware programs, will change how the world engineers.

We're collaborative, iterative, and high-agency, and we’re human-centered and customer-focused. We build with the newest AI tools every day, and because those tools keep changing, so do we: we stay curious and keep looking for the better way. Our team spans data science and ML, distributed systems, search, and knowledge systems, and we obsess over how agents can be genuinely useful to the engineers who rely on them.

The Role

As a Software Engineer supporting agents, you'll design how Nominal's agents work: you'll architect the one platform our agents, the Nominal MCP, and our internal agent all run on, and set technical direction for the team that builds on it.

What You'll Do

• Build agent tools and workflows that ship to every customer, from turning test plans into automated checks to running investigations across tests.
• Grow the Nominal MCP so external agents can do more of the work our users do, safely and with the user's own permissions.
• Build the integrations our internal company agent needs to work across Nominal's own tools and teams.
• Turn the patterns forward-deployed engineers find in the field into capabilities every customer gets.
• Instrument what you ship, read the traces, and fix what the evals and users tell you.
• Work directly with engineers at customer programs to understand how the work is really done.

What You'll Bring

• 4+ years as a strong backend or full-stack engineer.
• Hands-on experience shipping LLM features to real users: prompting, tool design, retrieval, and the debugging that comes after.
• Speed with good judgment: you ship small, measure, and iterate.
• Comfort with ambiguity and with owning a capability from idea to production.
• You build with modern AI coding agents (Claude Code, Cursor, Codex) every day, and stay curious and open to better ways of working. The tools keep changing, and so do we.

Nice To Have

• You've built MCP servers or agent tools that other agents rely on in production.
• You've shipped an agent feature that measurably changed how people work, and you can show the numbers.
• You've built or contributed to open-source agent tooling.
• You've been an engineer in hardware, test, controls, or robotics, or worked closely with those teams.

Benefits/Perks

• 100% coverage of medical, dental, and vision insurance
• Unlimited PTO and sick leave
• Free lunch, snacks, and coffee
• Professional Development Stipend
• Annual company retreat

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

ITAR Requirements

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C.

• 1157, or (iv) Asylee under 8 U.S.C.
• 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.