Senior Product Engineer (up to £135k)

Dex; Greater London; On-site; GBP 80,000 - 110,000; Full time

Job summary

Dex partners with a social-impact company and is seeking a senior software engineer to join a London-based product engineering team. You will own features across infrastructure, backend and frontend, with autonomy to shape the stack and drive product outcomes.

Collaborate with product, design, commercial and analytics, build internal tools, and integrate cutting-edge generative AI tooling to empower frontline users and improve system performance.

Qualifications

• Breadth across infrastructure, backend and frontend technologies.
• Experience with scalable architectures and data structures.
• Product-minded with data-informed decision making.

Responsibilities

• Shape the future of the technology stack across infra, backend and frontend.
• Collaborate with product, design, commercial and analytics teams to define and build new features.
• Develop internal tools to boost team efficiency and reach more users.
• Integrate latest generative AI tooling and LLMs to empower frontline workers and improve performance.
• Drive evolution of a core product and contribute to roadmaps for new offerings.

Skills

Full-stack experience

Cloud platforms

Scalable architectures

Cross-functional collaboration

Tools

Modern web frameworks

AI tooling & LLMs

Job description

This role is with one of Dex's trusted partner companies. We work closely with their teams to truly understand their culture, goals, and what they're looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process.

Dex is an AI recruiter agent that helps you run your job search. Tell Dex your stack, seniority, and what you want to build. We will manage your applications and surface other opportunities that are a fit.

The role

This company tackles the world's toughest social problems, leveraging AI and a high-performance team to drive first-of-its-kind positive change. Their core AI-powered product is already used by tens of thousands of frontline workers across multiple countries, helping them deliver faster, more human-centred support and saving significant time on admin.

You will join a rapidly growing product engineering team, empowered with high autonomy to build the future of their platform. This isn't just about writing code; it's about taking full ownership of product outcomes, working cross-functionally to define and deliver features that directly impact users. You will solve complex problems that blend technical challenges with real-world social impact.

The work

• Help shape the future of the technology stack, contributing across infrastructure and front-end systems.
• Collaborate closely with product, design, commercial, and analytics teams to define and build new features.
• Develop internal tools that enhance team efficiency and expand reach to more users.
• Integrate and optimize the latest generative AI tooling and LLMs to empower frontline workers and improve system performance.
• Drive the evolution of a core product used by thousands daily, or define the roadmap for new offerings.

What You Bring

• Demonstrable breadth of experience across infrastructure, backend, and frontend technologies, ideally with modern web frameworks and cloud platforms.
• Proven ability to work in complex software systems, understanding scalable architecture, data structures, and evolving tech stacks.
• A strong product mindset: you prioritize customer outcomes and make data-informed decisions.
• Experience collaborating effectively within cross-functional teams (PMs, UX, Designers, Data).
• Based in London and able to regularly meet the team in person for collaborative problem-solving.