Senior Full Stack Engineer at DealFlowAgent.com, London Area, £Contractor Option

Are you looking to join a fast growing company and have a impactful role each day?

🚀 About Deal Flow Agent

We’re building the Harvey AI of M&A, a full-stack AI native platform replacing bloated workflows for the business acquisition process

Friendly intro from Founder, Joe, to you:

https://www.tella.tv/video/hiring-at-deal-flow-agent-transforming-startup-landscape-9b0k

DealFlow Agent delivers M&A process automation that's 5x faster, 90% more cost-efficient, and improves deal outcomes for clients.

We generated $127,000+ in revenue last month at 80% EBITDA margin, with active clients across private equity, investment banks, buy-side teams, and founders preparing to exit.

Our platform codifies expert workflows—like deal origination, positioning, and deal prep into an AI-first experience. We’re beyond v1, revenue-generating, and now scaling into a fully agent-native platform.

👋 Who We’re Looking For

We’re hiring a Senior Full Stack Engineer to join as Technical Co-Founder and lead the next phase of growth. You’ll turn fragmented human workflows—calls, decks, spreadsheets—into persistent, intelligent agent flows.

This isn’t just prompt chaining. You’ll architect:

• Autonomous agents that reason, plan, and execute across long-term deal cycles
• Secure memory containers that persist user context across months
• AI-first interfaces combining chat, file uploads, enrichment tools, and business logic

You’ll join just before we hit escape velocity—defining both the system architecture and the product DNA.

🛠️ What You’ll Be Building

1. Agent Infrastructure

• Build robust agent flows using Claude + n8n (multi-agent, tool-delegation, retained-context)
• Solve failure points in prompt injection, webhook logic, and payload parsing
• Orchestrate tool use and memory layer across complex workflows

2. Memory, Privacy & Data Isolation

• Architect persistent memory for long-form agent interactions
• Create private containers per user/project (multi-tenant security by design)
• Ensure session-based recall of chats, uploads, enrichment, and decisions

3. UX, Chat Interface & Tools

• Optimise and polish our chat interface (React)
• Embed file upload, parsing, and real-time enrichment tools within conversation flows
• Ensure performance even with large documents and asynchronous processing

4. Productising Expert Logic

• Convert real-world consulting flows into structured agent logic (if/but, intent-routing)
• Implement onboarding flows to auto-configure agent behaviour by user type (buyer, seller, advisor)
• Guide architecture choices for future modular agent deployment

✅ You Should Have

• > 5+ years in full-stack development (strong back-end engineering bias)
• Strong communication in both verbal and written English
• LLM APIs and context/state management (Claude, OpenAI, etc)
• Built complex AI agents using tools such as n8n or Make
• Designing secure multi-tenant SaaS products
• Scaling DBs and infra across real-time chat and long-term memory

Nice-to-Have

• Familiar with M&A, private equity, or high-value B2B workflows
• Strong product sense and can act like a Forward Deployed Engineer where necessary to learn the customers pain points and accurately translate that into product development

📍 Logistics & Structure

• Title: Technical Co-Founder or if you prefer 'Head of Engineering' or similar
• Salary: To be discussed on suitable salary
• Equity: Significant % equity, tailored around a 1–3 month cliff
• Time Commitment: 15–20 hrs/week initially, with room to move into full time asap
• Location: Ideally London (Nine Elms), but remote-friendly
• Legal Setup: Partner or contractor agreement, IP + NDA standard

💥 Why Now?

• Proven Demand: £100k+ revenue in April
• Big Problem: M&A consulting is still stuck in spreadsheets and PDFs.
• Serious Tech: Agents, automations, and memory already live
• Right Timing: Post-MVP, pre-scale — ideal moment for a co-founder to shape architecture and product before hypergrowth

📬 How to Apply

Email joe@dealflowagent.com with:

✅ Your CV or LinkedIn

✅ GitHub or portfolio links

✅ A short note or video on:

• Why this role and timing excites you
• One key product/infra challenge you'd solve in your first month