Lead & Principal Frontend Focussed Fullstack Product Engineer (React/TypeScript) + Equity + Ben[...]

JR United Kingdom; London; On-site; GBP 80,000 - 140,000; Full time

Job summary

A growing startup is seeking a Lead & Principal Frontend Focussed Fullstack Product Engineer to join their dynamic team in London. This role offers the chance to shape product decisions and influence technical direction while working on a new B2B SaaS Martech platform within an inclusive culture that values team autonomy. Attractive compensation includes generous equity options and top-tier perks.

Benefits

Generous equity (0.1%–0.3%)

Visa sponsorship available

Latest MacBook and company card

Access to therapy and mental wellness perks

Yearly retreats

Private gym access

Encouragement for new perk ideas

Qualifications

• Strong experience with React and TypeScript; Next.js is a bonus.
• Solid engineering fundamentals with a product mindset.
• Lead experience required.

Responsibilities

• Shape the product strategy, technical direction, and user experience.
• Work closely with engineers to ship products quickly.
• Collaborate across the stack, willing to learn Go.

Skills

React

TypeScript

Go

Job description

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

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Client:

Location:

london, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

5

Posted:

16.06.2025

Expiry Date:

31.07.2025

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Job Description:

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

The Opportunity

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

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
• 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.