Tech Team Lead

About Numan

Founded in 2018, we’ve already grown to be a 300+ team distributed across the globe, united by a singular mission: empowering people to take control of their health.

Numan is transforming health: we’ve built a cutting‑edge platform that integrates diagnostics, medication, supplements, digital programmes, and doctor consultations.

Giving people the tools they need to maximise life.

The Role

This is a leadership role built on strong, hands‑on engineering, not a step away from the work.

You will co‑lead one of our product engineering teams alongside a Product and Design partner.

You’ll be entirely accountable for the team's technical direction, health, and execution, while actively line‑managing and growing your engineers.

If you want to build a psychologically safe, fast‑moving environment where good engineers do their best work, this role offers genuine ownership.

You'll be

• Set the technical direction and design quality within your team, making the local trade‑offs between scope, speed, and quality.
• Ensure your team's systems are highly reliable, observable, and operationally ready.
• Own the software development lifecycle, keeping the team inside our engineering guardrails or explicitly logging exceptions.
• Partner with your Engineering Lead and the Director of Technical Strategy to keep your team's technical decisions aligned with Numan’s broader vision.
• Lead a team that owns problems from initial shaping right through to measuring the live result.
• Ensure every engineer can explain why their work matters to the customer and exactly which metric it aims to move.
• Use feature flags, incremental rollouts, and rapid rollbacks to test signals before committing to heavy technical investments.
• Partner with Product and Design to co‑author OKRs, manage a short 2‑4 week portfolio of bets, and decide the order of implementation.
• Hire, line‑manage, and mentor your engineers. You will own their performance, personal growth, and career development.
• Own the health, efficiency, and psychological safety of the team, ensuring an honest environment where people thrive.

You'll need

• You’re a Senior Engineer who has owned the technical direction and design quality for a team.
• Direct experience line‑managing, hiring, and growing engineering talent.
• A track record of co‑leading alongside product and design partners in an environment that prioritises metrics over tickets.
• Real experience shipping, operating, and maintaining production software with a high bar for reliability.
• Experience working with leading indicators, feature flags, and incremental rollouts to validate direction before heavy building.
• A high bar for design quality balanced with sound trade‑off judgement (scope vs. speed vs. quality).
• You care deeply about the user problem and the commercial/customer outcome it drives.
• The ability to stand as a true peer to your Product partners, comfortably challenging product framing to better shape the problem.
• A strong preference for small, iterative delivery and fast feedback loops.

It's a bonus if you have

• Experience scaling engineering teams or architectures during a high‑growth phase.
• A familiarity with building secure, compliant systems (though not strictly required).
• Mentorship outside of work, open‑source contributions, or active involvement in the wider engineering community.

Our benefits include...

• Share options
• 25 days holiday, plus bank holidays (increasing to 30 the longer you stay with Numan)
• Health insurance with Vitality
• Electric car salary sacrifice scheme with Octopus
• Enhanced maternity and parental leave
• Nursery benefit provided by Yellow Nest
• Employee assistance programme (access to therapy, financial planning and discounts)
• Generous pension (includes both employee and employer contributions)
• Flexible working options, including a dog‑friendly office in Farringdon
• Personal training and development budget via Learnerbly
• Wellhub membership, giving you access to over 2,000 locations in the UK
• Cycle to work scheme
• Season ticket loan
• Discount on Numan products for your friends and family
• Paid volunteering days
• An additional 2 weeks off once you reach your 5th anniversary with Numan
• Diversity at Numan

At Numan, people are at the heart of who we are. We recognise and value the unique perspectives and experiences that individuals from all backgrounds bring.

We promote innovation and creativity, enabling us to tackle things from various viewpoints and are committed to equal opportunities and continuously strive to create a workplace where everyone feels respected, heard, and valued.

Embracing diversity isn't just our goal; it's our strength, driving us towards a more inclusive future.

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