Founding Engineer

Revnu; Manchester; On-site; GBP 45,000 - 75,000; Full time

Job summary

Revnu is seeking an exceptional engineer to join the founding team in Manchester to build the AI growth agent. You will work directly with the founders across product, infrastructure, and AI systems, with freedom and responsibility to shape how the company ships software.

This high-agency role requires identifying important problems, making quick decisions with incomplete information, and delivering production-ready work.

Qualifications

• Evidence of building something from zero to one.
• Experience shipping in ambiguous, fast-moving settings.
• Experience with LLMs in production is a plus.
• Willingness to work in person in Manchester.

Responsibilities

• Develop the core agent that runs growth experiments across SEO, outbound, ads and social.
• Build shared intelligence to transfer learnings across channels.
• Develop production-grade long-running agents with memory, scheduling, sandboxing and observability.
• Create a trust layer between agents and founders with approvals and status tracking.
• Connect metrics (replies, rankings, clicks, conversions) to guide next decisions.
• Build Slack, iMessage, web and dashboard interfaces to direct and review agent work.

Skills

Zero-to-one experience

High agency

Full-stack comfort

LLMs in production

Decision making under uncertainty

In-person collaboration

Production systems experience (Convex)

Edge infrastructure (Cloudflare)

Containers/VMs

Multi-agent or long-running LLMs

Tools

Convex

Cloudflare Workers

Containers

Virtual Machines

Job description

Every business needs growth. Most founders would rather be building. Revnu is the AI growth hire: one agent that runs SEO, outbound, ads and social, learns what works across every channel, and ships the work itself. You build the product. Revnu grows it.

We're a Y Combinator company (P26 batch), seed funded and growing fast. We think every business will eventually run on agents, and we're building the growth half of that future.

The team is small and based in Manchester. That means real ownership, fast cycles, and direct access to the founders and the work.

This is an intense, in-person environment. The team works a 9–9–6 pattern: 9am to 9pm, six days a week.

About the role

We are looking for an exceptional engineer to build Revnu with us from the earliest stage. You will work directly with the founders across product, infrastructure and AI systems, with the freedom and responsibility to shape how the company builds.

This is a high-agency role. You will find important problems, make good decisions with incomplete information and carry work all the way into production. We care much more about what you have built and shipped than your previous companies, credentials or years of experience.

New graduates are encouraged to apply. Art and George, Revnu's founders, are both 21-year-old University of Manchester dropouts. The bar is the same for everyone: evidence that you can learn unusually quickly, exercise strong judgement and turn ambiguous ideas into excellent working software.

What you'll work on

• The core agent that works as a growth hire for each customer, choosing and running experiments across SEO, outbound, ads, social and whatever channel makes sense next
• The shared intelligence that carries a useful learning from one channel into every other channel, so the product develops a real understanding of demand for each customer
• The systems that keep long-running agents dependable in production, including durable memory, scheduled work, sandbox lifecycle, tool execution, recovery and observability
• The trust layer between an agent and a founder, so work moves from draft to delivered with the right approvals, clear status and safe ways to intervene
• The measurement loops that connect replies, rankings, clicks and conversions to the agent's next decision, so it can stop what is failing and do more of what works
• The Slack, iMessage, web and dashboard experiences customers use to direct the agent, review its work and understand what actually shipped

Who we're looking for

• You have built something from zero to one and thrive in ambiguity. That could be a company, a product, an open-source project or something you made because it needed to exist
• You have unusually high agency. You spot what matters, move quickly and finish what you start
• You are comfortable going deep anywhere in the stack, including frontend, backend, infrastructure and ML or agent systems, with strong technical taste in at least one area
• You have worked with LLMs in production or are hungry to become excellent at it
• You make good decisions quickly with incomplete information and are honest when something is not working
• You want to work in person in Manchester most days with a small team that moves quickly
• You may be an experienced engineer or a new graduate. We care about the quality of your work, not the shape of your CV
• You have built production systems with Convex
• You have worked with Cloudflare Workers or other edge infrastructure
• You have built with isolated execution environments such as E2B, containers or virtual machines
• You have operated multi-agent or long-running LLM systems in production