Senior Software Engineer (AI x Financial Modelling) - Rust/TypeScript

Understanding Recruitment • United Kingdom

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AI Summary

Join a high-impact AI startup to build the next-generation AI add-in for financial modelling in Excel, scaling into an AI operating system for strategic decision-making. Own full-stack features, optimize AI agents, and drive backend infrastructure with Rust, TypeScript, and modern AI tooling. Ideal for top-centile engineers with deep technical ownership and AI-native problem-solving skills.

Key Highlights

Build an AI-powered financial modelling tool (Excel add-in) and scale into an AI operating system for strategic decisions

Full-stack ownership from Rust services and backend infrastructure to frontend, with high performance and AI integration

High compensation (up to £250k DOE + equity) and rapid growth opportunity in a small, elite engineering team

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Key Responsibilities

Design and implement AI agents, harnesses, and context optimization for financial modelling tools

Develop high-performance Rust services and backend infrastructure, optimizing queries and caching aggressively

Build and maintain frontend applications using TypeScript and React, ensuring polished, beautiful UX

Own CI/CD pipelines, debugging low-level issues, and continuously improving system performance

Collaborate closely with design teams to ensure seamless integration of AI-driven features

Technical Skills Required

Rust TypeScript AI/ML Tooling

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Benefits & Perks

Salary up to £250,000 DOE + equity

Visa sponsorship for relocation

Relocation package provided

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Nice to Have

Competitive programming experience (e.g., Olympiads or contests)

Background in trading or financial technology

Experience building AI agents or working with modern AI coding tools

Job Description

Do you have a track record of building exceptional software and want to work on a genuinely ambitious AI product?

Are you excited by high ownership, cutting-edge AI tooling, deep technical challenges, and the opportunity to become a technical leader within a small, elite engineering team?

🚀 Software Engineer – AI x Financial Modelling 🚀

💰 Salary: Up to £250k DOE + equity

📍 Location: London - onsite 5 days per week

🌍 Will relocate and sponsor

🧠 Experience: Exceptional engineers – high agency and strong technical fundamentals

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