QA​/UAT Engineer

The Company

At Nylas, we specialize in making it easier for developers to add email, calendar, and contact management features into their applications. We provide APIs, which streamline the integration of these functionalities, ensuring they are secure and effective. This enables better, safer, and more reliable communication within apps.

Supporting over 100,000 developers and collaborating with more than 900 companies globally, Nylas plays a pivotal role in how digital communication tools are built and utilized. Our technology spans various sectors, from healthcare to education, simplifying the complex process of app development related to communications. By reducing the barriers in communication technology, we empower developers to innovate and enhance user interaction across platforms.

At Nylas, we're building the infrastructure that powers modern communications. Our APIs and platform help thousands of developers integrate email, calendar, scheduling, and contacts into their applications without having to manage the complexity underneath.

As our platform grows, so does the importance of quality. We're evolving our quality engineering practice beyond the traditional SDET model and rethinking how testing fits into a modern engineering organization. We believe quality is a shared responsibility, and we're investing in automation, AI‑assisted workflows, and deeper collaboration between engineering and product teams to help us ship with confidence.

Our goal isn't simply to automate more tests. It's to build a modern, AI‑native quality engineering practice that enables teams to move faster while maintaining a high bar for reliability, usability, and engineering excellence.

We're looking for a QA/UAT Engineer who enjoys balancing automation with hands‑on product validation.

This role sits at the intersection of automated testing, exploratory testing, browser automation, API validation, release readiness, and AI-assisted quality engineering. You'll work across our API platform (Go/gRPC services for email, calendar, contacts, and scheduling) as well as our customer‑facing experiences, helping ensure changes ship with confidence. You'll partner closely with backend, frontend, platform, and product teams throughout the development lifecycle to build quality into the process from the start rather than bolting it on at the end.

This isn't a pure automation seat or a pure manual QA seat.

You’ll move between writing automated tests, validating real customer workflows, automating browser interactions, investigating production issues, and pioneering how AI can augment software quality. You’ll have the opportunity to influence not just what gets tested, but how quality engineering evolves at Nylas as we build an increasingly AI‑native engineering organization.

If you enjoy owning quality end‑to‑end and want to help build an AI‑native quality practice rather than inherit a fixed process, this role is for you.

This role is ideal for someone early in their career who is eager to grow into a Quality Engineer or Software Engineer. We're looking for a curious, AI‑savvy builder who enjoys learning new technologies, has a strong engineering mindset, and is excited to combine automation, hands‑on testing, and AI‑assisted workflows to help shape the future of quality engineering. Previous QA, SDET, or test automation experience is a plus, but a passion for learning and a desire to build great software matter most.

• Build and maintain automated test coverage. Design, implement, and own automated test suites across our API platform and customer‑facing applications, including integration, functional, contract, and end‑to‑end testing.
• Validate APIs and services. Develop and maintain test coverage for REST and gRPC services, ensuring reliability across email, calendar, contacts, scheduling, and third‑party provider integrations.
• Perform user acceptance and exploratory testing. Validate real‑world customer workflows before release, uncovering usability issues, edge cases, and regressions that automated tests may miss.
• Automate browser‑based workflows. Build…