Forsyth Barnes
Senior Product Engineer
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Senior Product Engineer
Location: London
Working arrangement: On-site
About the Company
We are working with an early-stage, high-growth fintech building technology to transform how financial advice is delivered.
The financial advice and wealth management industry is large and increasingly technology-driven, yet much of the infrastructure used by advisers remains fragmented, manual and highly dependent on legacy systems.
The company is building a new generation of productivity, compliance and advice technology, combining modern product engineering with deep expertise in financial services and regulation.
Your Role
As a Senior Product Engineer, you will own significant customer-facing product areas across web and mobile, taking problems from initial ambiguity through to production.
You will work closely with users, domain experts, designers and product leaders to understand the underlying problem, determine the right product approach and build the solution.
You will not wait for every decision to be translated into a detailed specification. Instead, you will use customer evidence, product data and technical judgement to make trade-offs and move work forward.
You will also contribute to frontend architecture and shared engineering foundations, helping ensure that client-facing products remain coherent and scalable as the company grows.
You will:
- Own meaningful customer-facing workflows from initial scope through to production
- Turn ambiguous customer problems into clear product and technical approaches
- Build across frontend, backend and AI layers where required
- Contribute to frontend architecture and reusable product foundations
- Make evidence-led product trade-offs without waiting for complete specifications
- Maintain a high bar for performance, accessibility and interaction quality
- Uphold and improve engineering standards across code, review, testing and release
- Investigate production issues and feed findings back into product development
- Lead technical decisions within your product area
- Contribute to broader engineering and product decisions
- Mentor engineers and strengthen product engineering practices
- Help assess and hire strong product-minded engineers
- Turn complex financial and regulatory workflows into simple, durable products
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What You'll Work On
Your work will include:
- Customer-facing web and mobile products
- End-to-end workflows involving meetings, data capture, research, suitability, reviews and compliance
- Interfaces for AI-assisted and agent-driven workflows
- Shared frontend architecture, component systems and product foundations
- Experiences connecting structured customer data with documents, evidence and recommendations
- Review, approval and escalation flows for regulated work
- Product behaviour around incomplete data, uncertainty and long-running workflows
- Performance, accessibility and responsiveness across client-facing applications
- Frontend observability and production issue diagnosis
- Experimentation, analytics and evidence-led product iteration
- Release quality and the engineering systems required for reliable delivery
- Product and technical direction within your area
What We're Looking For
- 4+ years building and shipping customer-facing software in production
- Experience owning a substantial product area from an ambiguous problem through to adoption and iteration
- Strong frontend engineering depth in TypeScript and modern web frameworks
- Strong full-stack capability, with the judgement to work across the wider system where needed
- Experience contributing to frontend architecture and shared engineering foundations
- A track record of making product decisions without relying on complete specifications
- Strong product judgement and the ability to explain technical and product 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
- A track record of scoping and delivering work over several months from a business or customer objective
- Strong written communication and the ability to document product and technical reasoning
- Experience improving standards across code review, testing, release and client-facing quality
- Comfort making decisions with incomplete information and real deadlines
- Experience mentoring engineers and improving team quality
- Experience working at startup pace without sacrificing judgement or engineering craft
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What Success Looks Like
Success in this role means:
- Users can complete more of their day-to-day work within the platform
- Complex workflows become simpler without losing regulatory control
- Product decisions are grounded in evidence and clear reasoning
- Client-facing engineering moves quickly without accumulating avoidable inconsistency
- Web and mobile experiences feel coherent across products
- Performance, accessibility and interaction quality improve as the product scales
- Production issues are understood quickly and influence future product decisions
- Engineers increasingly build on shared foundations rather than fragmented patterns
- Customers trust the platform with increasingly important parts of their work
- The product becomes deeply integrated into how customer organisations operate
- The engineering organisation maintains a high bar for craft, ownership and judgement
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