Senior Software Engineer in London

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Job Description
Monq is building AI agents that autonomously negotiate high-value enterprise contracts. We're tackling a $4.2 trillion market that's still run on spreadsheets, gut instinct, and back-and-forth emails. Our platform gives Fortune 500 procurement teams the speed and intelligence to close better deals, faster.
About the role
We're looking for a senior engineer to assist in developing the Monq platform. You'll work across the full stack: APIs, frontend, database, infrastructure. We move fast with AI- tooling — Cursor, Claude Code, and agentic workflows are part of how we build, not something we're "exploring." This is a foundational role where your code ships to enterprise customers weekly.
What you'll do
Build and evolve production APIs in NestJS, Fastify, and Prisma that power negotiation workflows Ship responsive, polished frontend experiences in React and TypeScript using Mantine Design and maintain our multi-tenant PostgreSQL data model with clean isolation and performant access patterns Own cloud infrastructure on AWS — Terraform, Docker, ECS, CI/CD with GitHub Actions Write tests that matter — unit, integration, and E2E with Playwright Contribute to engineering culture through code reviews, implementation specs, and architectural decisions
You might be a fit if
You have 5+ years of professional software engineering experience, ideally in early-stage or high-growth environments You're strong in TypeScript and modern React — hooks, server state, component architecture You've built production Node.js APIs (NestJS, Express, or Fastify) and know your way around PostgreSQL and ORMs You're comfortable with AWS, Docker, Terraform, and owning the full deployment pipeline You use AI coding tools daily — Cursor, Claude Code, Copilot, or similar — and have opinions on how to get the most out of them You can take a loosely defined problem, define an architecture, and ship a production solution in days You care about simplicity — you'd rather delete code than add abstractions You enjoy working directly with customers to understand what they actually need
Nice to have
Experience building multi-tenant SaaS with enterprise auth (OAuth 2.0, Auth0, SSO) Hands-on experience with LLMs in production — prompt engineering, RAG, tool use, agent orchestration Familiarity with OpenAPI, code , and API-first workflows Understanding of procurement, contract management, or enterprise B2B domains
About
Monq is building the first AI platform specifically designed for strategic procurement negotiation. We're creating a blue ocean in a $4.2 trillion market that has been ignored by existing AI solutions. Our team brings together deep technical expertise in AI with proven experience in enterprise software and procurement.
We're backed by forward-thinking investors who understand the massive opportunity in applying advanced AI to high-value B2B negotiations. With several major enterprises joining us, we're positioned to become the category-defining platform for AI-powered procurement. We are founded and backed by Revolut and HSBC executives.
We're a small, flat team that values simplicity, ownership, and shipping. We use AI tools aggressively — not as a novelty, but because they make us faster. We like engineers who are opinionated about code quality but pragmatic about deadlines.
Why This Matters: Every 1% improvement in strategic procurement represents a $42 billion market impact. We're not just building software - we're creating the future of how businesses negotiate their most critical deals.
Equal Opportunities Statement
Building the future of enterprise negotiations isn't enough. Our team members are a priority, and we're committed to creating an inclusive workplace where diverse perspectives drive exceptional innovation. We're not just doing this because it's the right thing to do - we know that seeking out diverse design talent and creating an inclusive environment is how we create exceptional, innovative products for our enterprise customers.
Monq is committed to creating a diverse and inclusive workplace and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, , , , reassignment, marital or civil partnership status, , , or maternity, or any other basis as protected by the Equality Act 2010.
We actively encourage applications from people with diverse backgrounds and experiences to join this multicultural, ambitious team.
Accommodations for Applicants with Disabilities
Monq is dedicated to providing reasonable accommodations to job applicants with disabilities. If you require any adjustments during the recruitment process, please indicate this in your application or contact us directly at recruitment@monq.io.
If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.
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Location:
London
Job Type:
FullTime
Category:
Engineer, Software Engineer, Senior, Engineering, Software

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