Frontend Tech Lead

Build relationships and grow the people around you

• Take the time to understand each team — how they work, what they’re dealing with, and where their strengths lie.

• Know which teams can operate autonomously within the guardrails and which need more active coaching, and invest your time accordingly.

• Actively mentor engineers in your vertical, helping them grow their technical scope and develop the habit of thinking beyond their immediate team.

• Foster a culture of curiosity, craft and continuous improvement — not just in the guild, but in the day-to-day rhythm of the teams you work with.

Bridge engineering and the wider organisation

• Communicate technical trade-offs, risks and decisions clearly to non-technical partners — in terms of impact, not implementation detail.

• Work with Engineering Managers to keep technical health and delivery in balance.

• You’re not downstream of product direction — you help shape it.

About you:
10+ years of software development experience, with deep expertise in modern web frontend technologies and a track record of operating across teams and codebases — not just within one.

• You have set technical direction before. You know what it takes to define standards that engineers actually follow, and you understand that the quality of your relationships is often what determines whether your architectural agenda lands or not.

• You are a natural builder of trust. You invest in understanding the people and teams you work with — their strengths, their constraints, their context — and you use that understanding to lead more effectively, not to manage more tightly.

• You adapt your leadership style to what the situation requires. When teams are engaged and capable, you focus on enabling and elevating. When they’re not, you roll up your sleeves, build the relationship, and earn the right to lead.

• You can hold technical depth and organisational breadth at the same time. You’re credible in an architectural review and equally comfortable in a conversation with an Engineering Manager or a product stakeholder.

• Excellent English communication skills — you can articulate complex technical ideas clearly to engineers, designers, and non-technical partners alike.

• You lead by example. The code you write and the decisions you make reflect the standards you set for others.

Nice to Haves

• Frontend observability experience (Datadog, error tracking, monitoring, performance metrics, web vitals).
• Experience with mobile-first design, atomic design principles, and progressive enhancement for responsive applications.
• You’ve experimented with AI in frontend projects and have clear opinions about where it creates real value — in the product, in the workflow, or both.
• A full-stack mindset: you may not write backend code day-to-day, but you understand how frontend and backend communicate and can reason about architectural decisions that span the stack.

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

We’re a team of 700 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 50,000 salon partners across 13 countries, processing over 8 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.
We’ll treat you with:

• 28-days holiday, plus bank holidays
• Monthly €40 Treatwell vouchers so you can treat yourself too
• Mental health support through our partnership with Plumm
• Growth funds for you to develop and grow with your team

Equal Ops

We are committed to fostering a diverse, inclusive, and equitable workplace and are proud to be an equal opportunity employer. All qualified applicants will receive consideration without regard to their condition.