Senior Product Engineer in London

About Sano

Accelerating the world’s transition to personalised medicine.

Purpose; why we do it

To speed up development of life‑saving treatments for those with limited options.

Vision; where we’re going

Become the world’s best source of patient-in-the-loop genomic and health data for precision medicine development.

Role Details

• Salary: 80,000 - 90,000
• Location: UK (remote only)

How you’ll make an impact:

• Identifying and prioritising the right problems to solve, focusing on meaningful customer outcomes and making smart trade‑offs to maximise impact with limited time and resources.
• Owning features end-to-end, from early discovery and technical input through design, implementation, testing, and release.
• Building and evolving core product capabilities, with an immediate impact on the reliability, scalability, and usability of our platform.
• Iterating quickly and pragmatically, using your judgement and experience to balance speed, quality, and long‑term maintainability.
• Shaping technical direction in a small team, contributing to architectural decisions and helping define how we build and ship product.
• Collaborating closely across the business, setting a high bar for communication through clear documentation, thoughtful proposals, and well‑structured code.
• Championing strong engineering practices, continuously improving how we work and supporting teammates through code reviews, pairing, and design discussions.

This job is for you if you:

• Have hands‑on experience building and shipping production software, using languages and frameworks such as Go, Python, or Ruby on Rails.
• Enjoy working in small, high‑trust teams, collaborating closely with other engineers and giving clear, constructive feedback to move work forward.
• Take a product‑first approach to engineering, partnering with Product to understand customer needs and prioritising outcomes and impact over purely technical perfection.
• Are comfortable operating with ambiguity, contributing to early‑stage thinking, helping shape solutions, and refining ideas as you learn more.
• Thrive in iterative environments, sharing work early (even when it’s not “done”), gathering feedback, and adapting quickly based on input.
• Balance speed with quality, making pragmatic decisions around technical debt, testing, and documentation to ship valuable features without over‑engineering.
• Care about building maintainable systems, and are thoughtful about how today’s trade‑offs affect the product and team over time.

Even better if you have:

• Experience designing or working with APIs, especially where data integrity, versioning, and backwards compatibility really matter.
• Exposure to data pipelines or data‑heavy systems, particularly where data quality, validation, or traceability are important (experience with regulated or sensitive data is a bonus, but not required).
• Experience working in a remote‑first team, comfortable collaborating asynchronously and communicating clearly across time zones.

This role is unlikely to be a great match if:

• You need very clear direction or tightly scoped tasks to do your best work — this role involves a lot of autonomy and self‑direction.
• You’re most comfortable in highly defined roles and processes, rather than adapting as priorities, scope, and problems evolve.
• You prefer working on purely technical tasks, with limited exposure to product decisions, customer context, or business trade‑offs.

Legal and Accessibility Notice

We can only accept applications from those eligible to live and work in the UK or in the USA (for specific roles). We are unable to sponsor visas for this position.

Diversity, Equity, Inclusion and Belonging

At Sano, we’re committed to creating an environment that promotes diversity, equity, inclusion and belonging. We are a global community and we believe our unique qualities should be celebrated as they are critical to our innovation. It’s essential to us that you bring your authentic self to work every single day, no matter your age, ethnicity, religion, citizenship, gender identity, sexual orientation, disability status, caring responsibilities, neurodiversity, or otherwise. Inclusion isn’t just an initiative at Sano. We strive to embed it not just into our values but throughout our entire culture.