Senior/ Staff Software Engineer in London

We're unlocking access to the NHS, because healthcare is not truly free until it's truly accessible. The world’s best healthcare, for free. It's not a new idea, it's called the NHS. But the largest healthcare provider is fundamentally broken. Patient satisfaction is at an all-time low, and the biggest reason cited is lack of access. So we’re on a mission to fix it with technology that actually works.

We're building the front door of UK healthcare, creating a future where one billion NHS appointments are transparent and instantly bookable, and patients are guided to the right service first time using AI. We're developing critical national infrastructure. Today, 26% of GP practices in England use our patient registration software, while one in five GP practices in London use Bookable Search to help new patients find and book appointments seamlessly. Our latest product, Bookable Navigator, extends this vision by automatically booking appointments for existing patients.

We operate from within a working GP practice in East London. We're backed by Y Combinator, Innovate UK and the NHS Clinical Entrepreneur Programme, and were previously ranked the 8th fastest-growing startup in the UK and 33rd fastest-growing in Europe.

What we’re looking for:

• You are operating at a senior or lead level and have 7+ years of experience.
• You're comfortable owning ambiguous problems end-to-end.
• You may have a founders/entrepreneurial mindset or have been a technical founder yourself.
• You’ve experienced a startup or scale-up especially at an early stage.
• You care deeply about user experience, performance, and simplicity - you seek the feedback loop!
• You constantly raise the bar for both engineering and product.
• You pride yourself on producing high-quality code which scales effectively into different environments.
• You understand and mitigate the risks of distributed systems, ensuring code that is failsafe even in the cases where things go wrong.
• Someone that thrives in autonomy, responsibility, and building things that truly matter.

Tech environment:

• Fullstack (Backend leaning): TypeScript or similar.
• APIs: Designing and consuming scalable, well-structured services.
• Data: Working with production systems and performance considerations.
• AI: Integrating modern AI models into real-world healthcare workflows.
• Experience in scaling product environments or high-stakes domains (health, finance, infra) is a strong advantage.

What success looks like:

• You ship intuitive, high-quality user experiences that clinicians and patients rely on daily.
• You influence product direction, not just implementation.
• You identify and solve performance and usability challenges before they become problems.
• You become a trusted voice across engineering, product, and design.
• The team delivers faster and better because of you!

What’s on Offer:

• Salary: £90-130,000k (DOE) + founding-level equity.
• Location: London (Stratford) - Onsite 4 days.
• We highly prioritise in-person communication and prefer candidates who want to work 4+ days a week in the office.
• Homemade breakfast and lunch are on the house every day when you're in the office.
• We work in growth cycles. Every 8 weeks we do the same set of activities.
• We’re highly collaborative.
• We’re backed by industry leaders.
• Paid volunteer days.
• Every 8 weeks we take a day off to socialise as a team.
• Learning budget of £250 annually and time off to spend it.
• Health and fitness budget of £60 per month.
• An additional 7 days of paid leave is available if you want to take time to learn how to meditate.
• Tooling; You’ll have your choice of operating systems and any additional tools you need to do your best work.
• Generous sick leave policy with additional days that can be taken for mental health leave.
• Parental leave policy that improves over time.
• Fertility leave policy.
• Pension scheme with employer contribution.
• Local living benefit to support living closer to the office.
• Optional dinner and Uber expenses for late work.

Inclusive & Diverse by Design:

We care about building a product that is loved and a culture that is rich in perspectives, experiences, and backgrounds. Our team represents more than ten different cultures. We want everyone in our team to know that they belong. We are purposeful about this and are proactively building a company that is inclusive of all people.