Fullstack Engineer

Full Stack Engineer | Central London (3 days onsite)

Our client is an AI work-execution platform built for alternative investment firms and their portfolio companies. It securely brings together proprietary data, external sources and workflows, so investment teams can analyse faster, cover more ground and make better decisions. They are backed by a large, established parent group with deep domain expertise. The team in London is small, senior and high-ownership, with direct access to senior leadership.

They are hiring a Full Stack Engineer (5+ years) to design, build and ship the product end to end, from the database to the UI. Security, tenant isolation and auditability are core engineering constraints, because clients trust the platform with confidential financial data.

What you'll do

• Build data-heavy, accessible interfaces in Type Script and React, respecting a detailed role-based access model
• Design services and REST APIs in Python (FastAPI/Django) with clear OpenAPI contracts
• Model data in PostgreSQL: schema design, migrations, indexing and multi-tenant isolation
• Build event-driven and background processing, plus real-time features over Web Sockets
• Implement SSO, OTP and session/JWT auth, and integrate with Microsoft 365, CRMs and document stores
• Work with the AI/ML team to ship LLM-powered features, including UX that investment professionals can trust and...