Principal Engineer - AI Engineering
Unlikely AI is seeking a Principal Engineer to drive technical expertise, engineering best practices, and solve complex technical problems. This role involves leading technical innovation and influencing technology direction as an individual contributor, with a focus on shaping best-in-class engineering for their novel AI platform.
Unlikely AI is a deep tech startup dedicated to creating a world where highly intelligent automated systems enable humanity to flourish. We are pioneering transformative technology aimed at making Artificial Intelligence more accurate, trustworthy, and safe. Taking a contrarian approach, we believe our technology can solve some of the most pressing problems facing the industry. Based in London, the company was founded by William Tunstall-Pedoe, known for his key role in the creation of Alexa. The company has raised a large ($20m) seed round and is building a world-class technology team to realize the extraordinary possibilities of its novel and potentially revolutionary AI platform and associated applications.
We are looking for an extremely smart and dedicated Principal Engineer to drive technical expertise, engineering best practices, and solve significantly complex technical problems. You will be responsible for driving clarity, technical innovation, and effectively influencing technology direction and decisions. This is an excellent opportunity to have a huge impact on shaping best-in-class engineering across the company in an individual contributor capacity.
We are currently operating a hybrid scheme with a small office near Holborn tube station available to anyone who wants to work there. We also have occasional team days where everyone meets face to face and days where people work heads down from home, communicating with colleagues using Slack and Zoom.
Compensation will be through salary and generous share options. The company has a tax-efficient EMI share option scheme set up (not available to larger companies) which allows us to provide real exposure to the success of the company without taxes being due when they are paid.
Posted June 23, 2026