Founding Engineering Lead - Health Tech Platform

Healf; Greater London; On-site; GBP 120,000 - 180,000; Full time

Job summary

Healf is redefining wellbeing with Healf Zone, a data-driven health platform. As the founding engineer, you will own core technology, drive architectural decisions, and lead a small, capable team from day one.

You’ll work closely with product, science, and leadership to turn ambitious ideas into scalable systems that support millions of users. You will build the backbone of the platform, integrating lab data, wearables, and clinical inputs into a proactive wellbeing companion, while shaping the

Qualifications

• 7+ years of experience designing and building complex, data-driven products at production scale.
• Excellent Python backend engineering skills.
• Experience with Next.js or an equivalent modern frontend framework.
• Strong understanding of distributed systems, data pipelines, and scalable architecture.
• Technical leadership experience, including setting direction and guiding engineers across multiple teams or workstreams.
• Experience working with health, wearable, sensor, clinical, or recommendation data is highly valuable.

Responsibilities

• Build and own the core technology powering Healf Zone end to end, including lab-testing products and the proactive wellbeing companion.
• Set the technical direction across sensor ingestion, sensor fusion, knowledge graphs, scoring engines.
• Work across the stack, hands-on, building scalable Python backend services and frontend experiences using Next.js.
• Build the team — hire engineers and shape how the pod works.
• Lead across all pods, helping teams make architectural decisions and deliver end-to-end products.
• Partner with product, clinical, data, and business stakeholders to identify opportunities and translate ideas into scalable systems.
• Build from the ground up infrastructure, services, and customer experiences to realise the Healf Zone vision.

Skills

Python

Distributed systems

Technical leadership

Foundational architecture

Tools

Next.js

Job description

Healf is redefining wellbeing with Healf Zone, a data-driven health platform. As the founding engineer, you will own core technology, drive architectural decisions, and lead a small, capable team from day one.

You’ll work closely with product, science, and leadership to turn ambitious ideas into scalable systems that support millions of users. You will build the backbone of the platform, integrating lab data, wearables, and clinical inputs into a proactive wellbeing companion, while shaping the