Lead & Principal Frontend Focussed Fullstack Product Engineer (React/TypeScript) + Equity + Benefits Hybrid (3 days/week in London) 80-140K
Lead & Principal Frontend Focussed Fullstack Product Engineer (React/TypeScript) + Equity + Benefits Hybrid (3 days/week in London) 80-140K

Lead & Principal Frontend Focussed Fullstack Product Engineer (React/TypeScript) + Equity + Benefits Hybrid (3 days/week in London) 80-140K

London Full-Time 64000 - 96000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead product strategy and technical direction for a new B2B SaaS platform.
  • Company: Join a fast-growing startup with a £25m pre-seed valuation and a strong engineering culture.
  • Benefits: Enjoy equity, top salary, 25 days holiday, health cover, and wellness perks.
  • Why this job: Be part of a supportive team that values autonomy and inclusivity while shaping innovative products.
  • Qualifications: Strong React and TypeScript experience; fullstack skills preferred, with a willingness to learn Go.
  • Other info: Hybrid work model with 3 days in London; visa sponsorship available.

The predicted salary is between 64000 - 96000 £ per year.

We are looking for Lead and Principal engineers to help shape the future of our brand-new platform - one with zero tech debt, a strong engineering culture, and serious backing (pre-seed valuation: £25m). This is a chance to have real ownership across product strategy, technical direction, and user experience, working closely with a tight-knit team of engineers who ship fast, think deeply, and care about craft.

We’re building a B2B SaaS Martech product that helps marketing teams drive growth with less guesswork. If you’ve worked on enterprise-grade products and love startup energy, you’ll fit right in.

What We’re Looking For:

  • Strong experience with React and TypeScript (Next.js a bonus)
  • Solid engineering fundamentals and a product mindset
  • Happy to work across the stack - ideally with Go (but if you’re fullstack in JS/Node/Express, with React on the front, we’ll teach you Go)
  • Comfortable working in teams that own everything from design to deployment

Our Stack: Go, TypeScript, React, Next.js, Node.js, AWS, Vercel, Kafka, Redis, Postgres

A Bit About Us:

We’re a 25-person team (11 engineers), growing steadily throughout 2025. Backed by top investors, we’re fast becoming one of Europe’s breakout startups. Our culture values autonomy, trust, and balance - and we’re serious about building a supportive, inclusive workplace.

Why Join Us?

  • Generous equity (0.1%–0.3%) and top-percentile salary
  • Visa sponsorship available (Skilled Worker/Tier 2)
  • Latest MacBook and your own company card to get what you need
  • 25 days holiday + full Bupa health cover
  • Access to therapy, meditation apps & mental wellness perks
  • Yearly retreats (sunny climates + a Christmas getaway)
  • A cool London office + private gym access across the road
  • We love new perk ideas – bring yours

Series A is on the horizon - this is your chance to join early and grow with us.

Interested? Reach out to mark@findrtech.io for the full story.

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Contact Detail:

Userled Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Lead & Principal Frontend Focussed Fullstack Product Engineer (React/TypeScript) + Equity + Benefits Hybrid (3 days/week in London) 80-140K

✨Tip Number 1

Familiarise yourself with our tech stack, especially React and TypeScript. Being able to discuss your experience with these technologies in detail will show us that you're not just a good fit, but also genuinely interested in the role.

✨Tip Number 2

Highlight any previous experience you have with B2B SaaS products or enterprise-grade applications. Sharing specific examples of how you've contributed to product strategy or user experience can set you apart from other candidates.

✨Tip Number 3

Demonstrate your leadership skills by discussing past experiences where you've led a team or project. We value engineers who can inspire and guide others, so be ready to share how you've fostered collaboration and innovation.

✨Tip Number 4

Show your enthusiasm for startup culture and working in a fast-paced environment. We want to see that you're adaptable and excited about the opportunity to shape a new platform, so convey your passion for building and growing with us.

We think you need these skills to ace Lead & Principal Frontend Focussed Fullstack Product Engineer (React/TypeScript) + Equity + Benefits Hybrid (3 days/week in London) 80-140K

Strong experience with React
Proficiency in TypeScript
Familiarity with Next.js
Solid engineering fundamentals
Product mindset
Fullstack development experience (JavaScript/Node/Express)
Ability to learn Go programming language
Experience with AWS services
Knowledge of Vercel for deployment
Understanding of Kafka and Redis
Experience with Postgres database
Leadership experience in engineering teams
Strong collaboration skills
Ability to work in a fast-paced startup environment
Commitment to building inclusive workplaces

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with React and TypeScript, as well as any fullstack projects you've worked on. Emphasise your leadership experience and product mindset to align with the company's needs.

Craft a Compelling Cover Letter: In your cover letter, express your enthusiasm for the role and the company. Discuss how your background in building enterprise-grade products can contribute to their B2B SaaS Martech product and mention your willingness to learn Go.

Showcase Relevant Projects: Include links to your portfolio or GitHub showcasing relevant projects that demonstrate your skills in React, TypeScript, and any fullstack work. Highlight any specific contributions you made to these projects.

Prepare for Technical Questions: Anticipate technical questions related to your experience with the stack mentioned in the job description. Be ready to discuss your approach to problem-solving and how you ensure quality in your code.

How to prepare for a job interview at Userled

✨Showcase Your Technical Skills

Make sure to highlight your experience with React and TypeScript during the interview. Be prepared to discuss specific projects where you've used these technologies, and if you have experience with Next.js, definitely mention that as well.

✨Demonstrate Your Product Mindset

Since the role involves product strategy and user experience, be ready to talk about how you've contributed to product development in the past. Share examples of how you've balanced technical decisions with user needs.

✨Emphasise Team Collaboration

This company values teamwork and ownership across the stack. Prepare to discuss how you've worked effectively in teams, particularly in environments where you were involved in everything from design to deployment.

✨Express Your Passion for Startups

Given the startup energy of this role, convey your enthusiasm for working in a fast-paced environment. Share any experiences you've had in startups or similar settings, and how you thrive under such conditions.

Lead & Principal Frontend Focussed Fullstack Product Engineer (React/TypeScript) + Equity + Benefits Hybrid (3 days/week in London) 80-140K
Userled
Location: London
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  • Lead & Principal Frontend Focussed Fullstack Product Engineer (React/TypeScript) + Equity + Benefits Hybrid (3 days/week in London) 80-140K

    London
    Full-Time
    64000 - 96000 £ / year (est.)
  • U

    Userled

    50-100
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