Senior Software Engineer - Quality Infrastructure Architect

❗️IMPORTANT: Please note that relocation to Sofia, Bulgaria is required.

❗️Sofia Stars takes care of Visa and other administration related costs.

We are looking for an engineer who views testing as a code-first discipline. We are moving away from siloed QA processes towards a modern engineering culture where tests live alongside the code.

You will not just be writing test scripts; you will be the architect of our entire Quality Infrastructure. Your mission is to build a robust, TypeScript-based testing framework and the tooling required to support testing at all levels—from Unit to E2E.

✅ Duties and opportunities:

✔️Building the Framework: Architecting and building a modern, scalable test automation framework from scratch using TypeScript.

✔️Full Pyramid Coverage: Implementing tools for all layers of the testing pyramid: Unit (configuring runners), Integration (API), and E2E (UI).

✔️"Tests alongside Code" Strategy: Championing the philosophy where test code resides in the same repository as the source code. You will ensure the setup is developer-friendly and integrates seamlessly into the dev workflow.

✔️Developer Experience (DX): Creating fixtures, mocks, and helpers that make it easy for developers to write and run tests locally.

✔️CI/CD Pipelines: Integrating quality gates into our build pipelines (GitLab CI) to ensure rapid feedback loops.

✔️Mentorship: guiding the dev team on testing best practices and writing testable code.

✅ Requirements:

✔️TypeScript Expert: You treat test code as production code. You know how to use TS generics, interfaces, and strict typing to create clean, reusable architecture.

✔️Modern SDET Experience: 3+ years of experience building automation frameworks from the ground up. You understand why "Page Object Model" is useful, but also know modern patterns (like Screenplay or Composition).

✔️API & Backend Knowledge: You feel comfortable testing microservices, working with REST/GraphQL, and mocking dependencies.

✔️DevOps Skills: You can set up a Docker container for tests and debug a failing pipeline in CI.

✔️Mindset: You don’t just find bugs; you prevent them by improving the tooling.

✅ Nice to Have:

✔️Experience with Contract Testing.

✔️Understanding of Backend and Frontend frameworks — not just how to test them, but how they work.

✅Why Sofia Stars?

🏖️ Up to 25 vacation days

🤒 6 Undocumented Sick Leave Days

💷 Monthly food vouchers (102 EUR);

🏥 Private Medical Insurance

🏋🏼 Multisport Card

🎁 Birthday, Wedding and Newborn gifts

🍔 Breakfast, Friday lunches, fruits, and snacks in the office

🎭 Monthly company activities and team-building events

🚀 Career growth opportunities

Join Sofia Stars and rock with us! 🚀