Senior Full Stack Software Engineer (Python / React) in London

Skin + Me is a technology-driven start-up on a mission to revolutionise personalised skincare. We’ve delivered millions of treatments across our multi-brand ecosystem (Skin + Me, Hair + Me, Renew + Me), powered by a proprietary stack that runs everything from our e-commerce engine to our in-house manufacturing. As we embark on the next phase of our growth, we’re looking for a Senior Software Engineer to join our high-leverage team. This is a hybrid role with three days a week in our Paddington HQ (Mon, Tue, Fri) and two days remote.

The mission

At Skin + Me, we value shipped impact over "hours spent typing”. Your goal is to use the best agentic tools to speed up the mundane so you can spend your time solving the hard problems: scale, experimentation and architecture.

What you’ll do

• Direct Agentic Workflows: Use agentic tools to navigate, plan, refactor, and ship features across our Python / React stack while drastically increasing your technical leverage.
• Full-Stack Ownership: Architect and deploy end-to-end features, from backend logic and database schemas to modern frontend experiences.
• Lead Engineering Evolution: Help define our "AI-native" development standards and mentor the team on high-velocity delivery.

Who you are

• The AI Edge: You are a power user of agentic AI. You know how to orchestrate edits across multiple files and identify where an LLM is hallucinating.
• Pragmatic Architect: You have the seniority to know when to trust an agent and when to step in. You value clean code, type systems, and robust testing.
• High Agency: You’re a problem-solver who thrives in a fast-paced, autonomous environment.

Technical skills

• Command of Python and its web development frameworks e.g. Flask, Django.
• Experience with relational databases (MySQL preferred) and ORM frameworks (SQLAlchemy, Alembic).
• Experience with TypeScript and React.
• Experience building and maintaining frontend design systems.
• Familiarity with containerisation (Docker) and cloud platforms (AWS preferred).
• Understanding of modern web architecture and performance optimisation.

Why Skin + Me?

• High Leverage: We give you the best tools and the autonomy to use them.
• Make a difference: Work within a revolutionary company that is focused on improving millions of lives.
• Equity: Every employee has a stake in the business.
• Perks: Free breakfast and lunch (office days), dog-friendly HQ, 25 days holiday, and a £500 annual development budget.

Benefits

• 25 Days Holiday (+ all the usual Bank Holidays) – It’s important to take a break and recharge, that’s why we offer a generous holiday allowance.
• Free Breakfast & Lunch – It’s important you are well fueled for the day so we’ve got your breakfast and lunch covered. Plus drinks and snacks are available too!
• Hybrid working to give you flexibility – We are all remote on Wednesday and Thursday. When we are in the office on Monday, Tuesday and Friday our core hours are 10-4. If you’re an early bird you can do 7-4, and if you’re a night owl 10-7 is fine too. Need more flexibility around your life – just let us know.
• Equity – We offer a competitive salary and a generous share award package that means every employee has a stake in the business.
• Health and wellbeing focus – We offer a healthcare cash plan, cycle to work schemes plus free healthy breakfast and lunch in the office.
• £500 annual development budget for any learning, training and development opportunities.
• For working parents, we’re proud to offer assistance, helping you save on nursery fees.
• Culture club – Our culture club team meets every week to make sure we celebrate our big wins and milestones too, with parties, surprises and more.
• You’ll get highly discounted Skin + Me products for you, and 10 friends + family too.
• Generous employee referral scheme, if you know more fabulous people refer them to work with us too and you’ll get a bonus when they pass probation.
• Dog-friendly office with two very cute resident dogs!

More About Skin + Me, Hair + Me and Renew + Me: There’s a huge problem in the world of personal care: people struggle with more than just how their skin or hair looks. They’re navigating confidence, identity, and long‑term health—all deeply personal and ever‑changing. Skin + Me, Hair + Me and Renew + Me exist to change that. Skin + Me launched over six years ago with one mission: to revolutionise skincare through personalised, clinically‑effective treatment that’s simple, sustainable, and built around real results. Now a category leader and scale‑up success story, Skin + Me has delivered millions of personalised treatments through our signature Daily Doser and helped customers transform not just their skin—but how they feel in it. From that foundation, we’re building out a powerful family of brands: Hair + Me brings prescription‑led, personalised treatment to the world of hair health, tackling concerns like thinning and loss with the same blend of dermatological expertise and tailored solutions. And now, Renew + Me is our latest evolution—an advanced prescription skincare brand created specifically for mid‑life women. Born from the insights of Skin + Me and designed to meet the unique needs of women 45+, Renew + Me couples hard‑working actives with deeply human insight to become the definitive skincare brand for this powerful life stage. At Skin + Me, Hair + Me and Renew + Me, we advocate for real, long‑term change—whether it’s better skin, hair, or health. Our mission is rooted in personalisation, expert care, and building deep trust with our customers. No compromises. Just undeniable results.