Enabling safe and rewarding digital lives for genuine people, everywhere
We make it our mission to ensure more genuine people have digital access to opportunities, and businesses have access to more genuine people. Our technology draws on diverse and reliable data to create a single point of truth for identity and address verification.
With over 30 years of experience behind us our team and technology are focused on enabling safe and rewarding digital lives for everyone. Regardless of age, location or background, genuine people everywhere should be able to digitally prove who they are and where they live.
Documents & Biometrics - Sentinel Product Team
We're a close-knit group with a high sense of ownership and a shared determination to get things done and keep our customers satisfied. We value every team member's contribution, hold ourselves accountable for quality, and take pride in delivering software that works reliably in the real world.
You'll be joining the Windows Desktop SDK team within GBG's Documents & Biometrics product group. The core engineering team consists of three Software Engineers (+ this role) and two QA Engineers, working closely with a hands-on Engineering Manager and a Product Owner. The team is primarily based in Manchester, New Hampshire, with colleagues working remotely from Mexico and California, giving the team a genuinely international feel. This role is hybrid, with an expectation of two days per week in our Manchester, NH office to maximise in person collaboration with the core team.
Beyond the immediate team, you'll collaborate with the wider family of squads working across the Documents & Biometrics portfolio, so there's genuine breadth of exposure and cross-team connection, not just a narrow lane.
Our flagship product is Sentinel, a forensic document-authentication engine trusted by organisations in some of the most demanding identity verification environments in the world, including border control, law enforcement, and regulated financial services. The stakes are high; accepting a fraudulent identity document in these contexts can have serious real-world consequences, and Sentinel exists to prevent that.
Formed in July 2024, this team was brought together with a clear mandate to take ownership of Sentinel and elevate it. That means balancing meaningful feature delivery against a deliberate programme of technical improvement, modernisation, and automation, and there's a strong roadmap with plenty to get your teeth into. You'd be joining at an exciting point in that journey.
As a Senior Software Engineer, you'll take ownership of complex features and improvements across the Windows-deployed SDKs and supporting desktop components that power Sentinel.
Our software runs across a range of scanning devices, including hardware we badge under our own product lines, and a key part of the role is ensuring robust compatibility is maintained across that device ecosystem.
You won't need to be a hardware engineer; we have dedicated hardware technicians for that. But you will need a practical appreciation for software-hardware interaction and the discipline to test and validate across multiple device configurations.
This is a role with real breadth. You'll ship features, improve the codebase, and raise the technical bar for the team, often all at once.
Desirable Skills
As an equal opportunity employer, we are dedicated to creating a diverse and inclusive workplace where everyone feels valued and empowered. Please inform your GBG Talent Attraction Partner if you require any reasonable adjustments to the interview process.
To chat to the Talent Attraction team and find out more about our benefits and why we’re a great place to work, drop an email to behired@gbgplc.com and we’ll be in touch. You can also find out more about careers at GBG and check out our current opportunities at gbgplc.com/careers.
Unleash your potential and be part of our mission to power safe and rewarding digital lives.