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

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

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

  • Tasks: Lead and shape our new platform with a focus on frontend development.
  • Company: Join a fast-growing startup valued at £25m, focused on B2B SaaS Martech solutions.
  • 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 innovation in a dynamic environment.
  • Qualifications: Strong React and TypeScript experience; fullstack skills preferred but willing to teach Go.
  • Other info: Hybrid work model with 3 days in London; visa sponsorship available.

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

We're 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
  • Lead Experience

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.

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

Join a dynamic and innovative team in the heart of London, where you'll have the opportunity to lead and shape a cutting-edge B2B SaaS Martech platform. With a strong emphasis on autonomy, trust, and work-life balance, we offer generous equity options, competitive salaries, and a supportive culture that prioritises employee growth and well-being. Enjoy a hybrid work model, access to wellness resources, and the chance to be part of a rapidly growing startup poised for success.
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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 (London Area)

✨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 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 autonomy and collaboration, so showcasing your ability to work well in a team while taking ownership will resonate with us.

✨Tip Number 4

Be prepared to discuss your approach to problem-solving and how you handle technical challenges. We appreciate engineers who think deeply and can articulate their thought process, so come ready to share your insights.

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 (London Area)

Strong experience with React
Proficiency in TypeScript
Familiarity with Next.js
Solid engineering fundamentals
Product mindset
Fullstack development experience (JavaScript/Node/Express)
Experience with Go (or willingness to learn)
Comfortable working in cross-functional teams
Knowledge of AWS services
Experience with Vercel
Familiarity with Kafka and Redis
Understanding of Postgres
Leadership experience
Ability to work in a fast-paced startup environment
Strong communication skills

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 ability to work across the stack.

Craft a Compelling Cover Letter: In your cover letter, express your enthusiasm for the role and the company. Mention specific aspects of their product and culture that resonate with you, and explain how your background aligns with their needs.

Showcase Relevant Projects: Include links to your GitHub or portfolio showcasing relevant projects, especially those involving enterprise-grade products or B2B SaaS solutions. Highlight your contributions and the technologies used.

Prepare for Technical Questions: Be ready to discuss your technical skills in detail, particularly around React, TypeScript, and any experience with Go. Prepare examples of challenges you've faced and how you overcame them in past projects.

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 your experiences working in collaborative environments, especially how you've contributed to design and deployment processes.

✨Express Your Passion for Startups

Given the startup energy of the company, convey your enthusiasm for working in a fast-paced environment. Share any relevant experiences that demonstrate your adaptability and eagerness to take on challenges in a growing company.

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

    London
    Part-Time
    64000 - 96000 £ / year (est.)

    Application deadline: 2027-06-15

  • U

    Userled

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