Senior Full-Stack Product Engineer
Salary: £70K - £110K + 0.30% - 0.50% Equity
Company Description: Arva AI – YC-backed startup building AI Agents to scale AML, KYB, and KYC operations
Job Description: As a Senior Full-Stack Product Engineer, you will build and iterate on features for an AI-powered anti-financial crime platform. You will develop document fraud detection, web due diligence tools, and automation systems for model fine-tuning. This role bridges front-end, back-end, and MLops to help financial institutions cut operational costs by 80%.
Location: London, UK
Why this role is remarkable:
- Join a fast-growing Y Combinator S24 startup at an early stage with significant ownership over the company's core AI strategy.
- Work on cutting-edge agentic workflows that automate complex human review tasks, directly impacting the global fight against financial crime.
- Enjoy high-impact perks including bi-annual salary reviews, yearly performance equity refreshes, and the ability to work remotely for four weeks every year.
What you will do:
- Build scalable back-end systems and intuitive front-end interfaces that explain complex AI-driven decisions to compliance officers without overloading them.
- Develop and optimize automated systems for prompt engineering, model fine-tuning (LLMs and vision models), and custom AI model training.
- Iterate rapidly on AI agents to enhance performance, reliability, and explainability while maintaining best-in-class CI/CD and DevOps practices.
The ideal candidate:
- Has 4+ years of professional full-stack experience with a strong proficiency in TypeScript, React, and Node.js.
- Possesses hands‑on experience in AI/ML, specifically with computer vision, prompt optimization, and adapting pre‑trained models for specific use cases.
- Exhibits a proactive problem‑solving mindset and a relentless focus on delivering user‑centric value in a fast‑paced startup environment.
Next steps
- Visit our website.
- Click 'Talk to Jack'.
- Talk to Jack so he can understand your experience and ambitions.
- Jack will make sure Jill (the AI agent working for the company) considers you for this role.
- If Jill thinks you’re a great fit and her client wants to meet you, they will make the introduction.
- If not, Jack will find you excellent alternatives. All for free.
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