SEO Full Stack Engineer

We're looking for a full-stack engineer to join our Product Engineering team, reporting to one of the Engineering Managers of the Marketplace area, with a dotted line to the Marketing SEO Manager, focused on supporting the Growth and Marketing area. This role will have a 60% focus on Front End, and 40% focus on Back End.

You'll work on Treatwell’s Marketplace products and help Treatwell be discovered, understood, and chosen across 13 markets: SEO foundations, site performance, experimentation, analytics instrumentation, and the product surfaces that connect customer intent with booking, alongside three product engineering teams in the Marketplace area, contributing across the full breadth of what makes Treatwell's marketplace tick. As a full-stack engineer, you're the person who can move fluidly between teams accelerating growth and marketing efforts wherever the need is greatest.

You bring the mindset of someone who cares about how people find Treatwell, what experience they land on, and whether the product helps them make a confident booking. You are comfortable partnering with marketing and growth stakeholders, while staying grounded in engineering quality and product outcomes.

💡 About Treatwell

Hi, we’re Treatwell. Nice to meet you.

We’re a team of 800 passionate and brilliantly talented people across Europe. We’re the industry’s smartest salon management software, all connected to Europe’s leading bookings platform, working with over 95,000 salon partners across 14 countries, processing over 14 million bookings every month. And….breathe.

But we’re not done yet. We’re on an exciting journey to digitally revolutionise the hair and beauty community.

If this excites you, we might just have the role for you.

🧐 You will be responsible for

Growth and marketing engineering - build and evolve the technical foundations that support customer acquisition, activation, and retention across Treatwell's markets

Discoverability - improve how search engines and users understand Treatwell's marketplace, without turning the role into a pure SEO implementation function

Experimentation and measurement - instrument your work, support testing frameworks, and help teams validate ideas with data before scaling them

Product surfaces - ship user-facing improvements to landing pages, discovery journeys, and conversion flows, owning the work from problem framing through production

Platform quality - own your services end-to-end, from architecture through deployment, with a DevOps mindset baked in

Cross-functional clarity - translate growth and marketing opportunities into clear engineering work, challenge scope when needed, and keep quality standards high

🔝 About you

You have proven experience owning production-grade web applications end-to-end, and understand that the best technical decisions come from deeply understanding the problem - not just the code (mid/senior level)

You own features end-to-end - from database schema to UI, without needing a handoff

You think in systems and trade-offs, not just tickets - you spot the upstream cause, not just the downstream symptom

You have a product mindset - you think about the person using what you build, ask why before how, and push back when something doesn't make sense

You're data-driven and hypothesis-led - you instrument your work, measure impact, and use evidence to make decisions