Senior Full Stack Engineer

Private Identity (“PrivateID”) builds privacy-preserving identity and age-assurance technology — verification that confirms who someone is, or that they meet an age requirement, without storing the underlying personal data.

Our software runs in production at consumer scale for some of the largest companies in the world, and we hold ourselves to the quality bar this demands:
Private Identity is ISO 27001, ISO 9001 and SOC 2 Type II certified, and a Kantara-certified NIST SP 800-63 credential service provider.

We’re a small, senior, international team, HQ in Washington DC, who work in the open, write things down, and ship software that works the first time.

You’ll be a Senior Fullstack Engineer embedded three days a week with a large customer’s in-store platform team in Woonsocket, RI, with the other two days working remotely.

You’ll sit at the intersection of product engineering, quality, and customer delivery. You’ll work directly with our engineering team to take new releases from code to customer: validating builds, building automated coverage, improving our test infrastructure, troubleshooting issues, and making sure both teams have a clear picture of what’s ready to ship.

The role has a strong quality-engineering focus, but this is an engineering position. You’ll write Type Script, build and maintain automation frameworks, work across UI and APIs, integrate testing into CI/CD, investigate issues on Linux and Android, and collaborate closely with engineers on both sides of the relationship.

You’ll also be our technical presence inside the customer account. You’ll learn how their systems and workflows operate, understand how they use what we build, and bring that context back to our distributed engineering team. Clear written communication is as important as technical ability: you’ll be expected to leave behind useful context, actionable defects, test results, and decisions.

If you enjoy owning problems end to end, working across the stack, bringing structure to ambiguous situations, and being the trusted technical link between two engineering teams, you’ll do well here.

The customer’s engineering team is small, which means you’ll work directly with the people building and operating their platform. You’ll become a familiar face quickly — pairing on reproductions, troubleshooting issues, aligning on test coverage, and helping determine whether a release is ready for production.

Our own team is small and international, with engineers across South America, India, Europe, and the US. We work asynchronously across time zones and rely heavily on clear written communication, focused calls, and individual ownership.

Three days a week, you’ll be the in-person technical presence for our team at the customer site. The other two days, you’ll continue that work remotely with our distributed engineering organization. You’ll need to be equally comfortable in both environments.

Own quality from build to release

• Receive new releases from our engineering leads, including Ubuntu workstation software and a companion Android application.
• Install and validate builds on real test hardware and run focused smoke testing across installation, upgrades, first launch, core workflows, camera, and video functionality.
• Build and maintain automated UI and API coverage using Playwright and Type Script.
• Use automation as the primary mechanism for repeatable regression coverage, while applying focused manual testing where human judgment adds value.
• Validate releases against requirements and acceptance criteria and provide a clear, evidence-based recommendation on release readiness.
• Investigate failures, reproduce issues, collect logs and other evidence, and work with engineers to identify…