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Senior Product Engineer

Saturn
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Hybrid (London)£90k - £150kFull-timePosted 6mo ago

About the role

Senior Product Engineer role at Saturn, a YC-backed fintech, focusing on adviser-facing product areas across web and mobile from ambiguous problems to shipped solutions. You’ll influence frontend architecture, collaborate with designers and domain experts, and help Saturn scale while maintaining coherent product experiences across web and mobile.

Responsibilities

  • Own significant adviser-facing product areas across web and mobile from problem discovery to shipped solutions
  • Collaborate with advisers, domain experts, designers and product leaders to define the right product approach
  • Make trade-offs using customer evidence, product data and technical judgment without waiting for all details
  • Contribute to frontend architecture and shared foundations for scalable client-facing products
  • Ensure Saturn becomes a coherent product advisers rely on for their daily work
  • Mentor engineers and improve team quality and craft
  • Investigate production issues and translate findings into product improvements
  • Scope and deliver work measured in months from business or customer objectives

Qualifications

  • 4+ years building and shipping customer-facing software in production
  • Experience owning a substantial product area from ambiguity to adoption and iteration
  • Strong frontend engineering depth in TypeScript and modern web frameworks
  • Strong full-stack capability with ability to work across the system when needed
  • Experience contributing to frontend architecture and shared engineering foundations
  • Ability to make product decisions without complete specifications
  • Strong product judgment and ability to explain trade-offs clearly
  • Experience working closely with design while maintaining technical ownership
  • Evidence of improving performance, accessibility and interaction quality in production products
  • Experience building reliable interfaces around complex data, workflows or permissions
  • Experience investigating production issues and translating findings into product improvements
  • Ability to scope and deliver work over months aligned to business or customer objectives
  • Strong written communication to document product and technical reasoning
  • Experience improving standards across code review, testing, release and client-facing quality
  • Comfort owning decisions with incomplete information and deadlines
  • Experience mentoring engineers and building a high-quality team
  • Experience working at startup pace with sound judgment and craft

Skills

Required:GoTypeScriptAI / LLM integration
Nice to have:Python

Benefits

  • Competitive salary benchmarked to your experience and the London market.
  • Equity / stock options, a genuine stake in Saturn’s success.
  • On-site in our London office.
  • Work on real, hard AI problems at the intersection of fintech, regulation, and LLMs.
  • High ownership and fast feedback loops, your work ships and matters from day one.
  • A tight-knit, ambitious team that cares deeply about craft, product quality, and each other.
Last updated Sep 16, 2026. Interested? Apply on the company site.
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About Saturn

Compliance and back office workflows for Wealth Managers.

At Saturn, our mission is to make financial peace of mind more accessible by building the best operating system for wealth managers. Wealth and Asset Management is one of the world’s highest revenue-generating industries, yet it remains painfully inefficient. The sector relies heavily on disjointed legacy systems, manual human tasks, and a complex web of intermediaries, all of which increase costs. Saturn is an AI-powered operating system for wealth management built to automate investment research, streamline operations, and ensure compliance. Saturn creates the best version of truth, empowering investment advisors to work more efficiently, navigate complex regulatory landscapes, and deliver personalised, high-value services to their clients. Today, Saturn supports over 200 firms globally that manage more than £35bn in assets under management (AUM) and over 200,000 clients. As the industry grows, it faces massive operational challenges like bad tech, advisor retirements, regulatory pressure, an increased cost base, and transformational opportunities like great intergenerational wealth transfer and changing consumer needs. Saturn aims to be at the forefront of this transformation, driving the future of wealth management.

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