Senior Product Engineer

Explore Group; Greater London; Hybrid; GBP 140,000 - 170,000; Full time

Job summary

Explore Group is partnering with a high-growth startup to hire a Senior Product Engineer (Full-Stack / AI) for Central London with hybrid working. The role focuses on owning greenfield features and delivering AI-first design throughout the stack.

You will work closely with founders and leadership to translate complex domain challenges into scalable products, shipping end-to-end features in a modern web and AI architecture, and designing intelligent workflows with LLM tooling integrated into core

Qualifications

• Experience thriving in agile, early-stage startups.
• Proficient in Python and frontend React/Typescript.
• Familiar with modern full-stack architectures and APIs.
• Exposure to AI/LLM integration and autonomous agents is a plus.
• Experience with cloud deployments and PostgreSQL.

Responsibilities

• Translate complex domain challenges into scalable products.
• Build, test, and ship end-to-end features across a full-stack AI-driven stack.
• Design intelligent workflows and LLM-driven tooling for core UX.

Skills

Startup Experience

Full-Stack Proficiency

Web Tooling

AI & LLM

Cloud & Databases

Product Focus

Job description

Senior Product Engineer (Full-Stack / AI) – Central London (Hybrid) – £150,000 + Equity | Hybrid

Explore Group is partnering with a well‑funded, high‑growth start‑up transforming high‑stakes, regulated enterprise workflows with modern, AI‑first software.

Following substantial investment from leading VCs, they are expanding their core engineering team and seeking a Senior Product Engineer to take full ownership of greenfield feature development from day one.

The Role

• Partner directly with the founders and technical leadership to translate complex domain challenges into scalable, user‑centric products.
• Build, test, and ship end-to-end features rapidly across a modern full-stack web and AI architecture.
• Design and implement intelligent agentic workflows and LLM-driven tooling integrated directly into core user experiences.

Key Requirements

• Startup Track Record: Proven experience thriving in agile, fast-paced early‑stage environments with a high degree of autonomy.
• Full-Stack Proficiency: Strong production background across both frontend and backend development, ideally using Python / React or Typescript ecosystems.
• Modern Web Tooling: Solid familiarity with modern full-stack architectures, type-safe APIs, and responsive UI frameworks.
• AI & LLM Integration: Practical experience or demonstrable interest in building with modern LLM pipelines, autonomous agents, and context‑aware systems beyond basic API calls.
• Systems & Cloud: Good grounding in event-driven patterns, background worker queues, cloud deployments (GCP/AWS), and relational databases (PostgreSQL).
• Product Focus: Strong product sense with an instinct for delivering reliable, elegant solutions to genuine end‑user friction points.