Staff Software Engineer

You’re a senior engineer who gets restless when your work feels abstract. You want to see your code in the real world, nudging health outcomes, not just engagement metrics. You’re happiest when you own problems end-to-end, from fuzzy product idea to shipped feature, and you don’t need a 20-page spec to get moving. You care about system design and code quality, but you care just as much about whether what you’re building actually helps people.

Is this the next step in your career Find out if you are the right candidate by reading through the complete overview below.

You’re product-minded: you ask “what problem are we solving for the patient?” before you ask “what stack are we using?”. You’re comfortable in TypeScript and at home in React / React Native / Node (or similar), and you like working across the stack rather than being boxed into a narrow layer.

You enjoy fast feedback loops, shipping in days, not weeks, and iterating based on data and real-world usage. You’re AI‑curious (or AI‑obsessed), already using LLMs in your workflow, and itching to push them deeper into the product itself.

You thrive in senior, flat teams where responsibility is the default, not the reward. You’re comfortable making decisions with imperfect information, debating trade-offs with peers, and owning production systems when it really matters. You don’t want to just advise; you want to build.

If that sounds like you, there’s a London‑based healthtech scale‑up you’ll probably love.

They’re building a single React Native/TypeScript platform that powers GLP‑1 weight loss journeys across the UK and US markets, aiming to reduce the burden of obesity, diabetes, and cardiovascular disease at scale.

You’d lead complex feature work on a high-traffic app, integrate AI/LLM capabilities (including conversational experiences) to support behaviour change alongside medication, and help shape the engineering culture in a senior-heavy, high-agency team.

FAQ's

Salary: Up to £130 000

Location: 4 days a week in a Warren Street office

If you’re a senior engineer who wants to ship serious software with real-world health impact, drop me an email ( ) with “Tipping The Scales” in the subject line. Include your CV if you have it ready or just your LinkedIn profile and a couple of lines that you wrote yourself as to why you think this could be your next role.

All applications received as above will be reviewed by a human (me) and will get feedback. xwzovoh

LinkedIn applications may not all be reviewed due to volume and lack of relevance.