Software Development Engineer in Test (Playwright / TypeScript)

The Software Developer Engineer in Test (Playwright / TypeScript) at Constructor Tech will play a critical role in designing, implementing, and evolving our automation strategy and frameworks with a focus on Playwright and TypeScript. This role combines deep technical expertise with a passion for efficiency, reliability, and innovation in testing — including the adoption of AI-driven testing and Modular Composable Platforms (MCPs).

You will collaborate closely with development, DevOps, and QA teams to ensure automation excellence across all layers of the delivery process.

Key Responsibilities

• Design, build, and maintain scalable automation frameworks using Playwright and TypeScript for web and API testing.
• Define and evolve test automation strategy, processes, and best practices to ensure consistent quality across projects.
• Develop and maintain robust, reusable test suites and utilities for regression, smoke, and integration testing.
• Integrate automation into CI/CD pipelines (e.g., Jenkins, GitLab CI) to enable continuous testing and fast feedback loops.
• Collaborate with developers and DevOps engineers to ensure test environments and data are stable and reliable.
• Apply white-box and gray-box testing techniques to ensure thorough coverage of both frontend and backend components.
• Contribute to the adoption of AI-assisted testing tools and automation intelligence for test creation, maintenance, and analytics.
• Participate in exploration and implementation of MCP-based automation components and reusable service connectors.
• Provide technical guidance through mentoring and peer reviews, helping less experienced QAs enhance their automation expertise and code quality.
• Continuously improve test performance, reliability, and reporting visibility through innovation and tool evaluation.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or equivalent experience.
• 4+ years of experience in QA and automation, including 2+ years with Playwright and TypeScript.
• Proven experience in building test automation frameworks from scratch.
• Solid understanding of SDLC, QA methodologies, and automation design principles.
• Strong knowledge of TypeScript and/or Python for test development.
• Experience with REST API testing, SQL, and relational databases.
• Familiarity with Jenkins, GitLab CI, and Git for continuous integration and source control.
• Strong analytical and troubleshooting skills with a proactive, ownership-driven mindset.
• Fluent in English, both written and verbal.

Nice to Have

• Experience with AI-powered testing tools or model-based testing.
• Familiarity with Linux, Docker, and Kubernetes (K8s).
• Knowledge of mobile automation frameworks such as Appium or similar tools.
• Understanding of MCP architecture and how it can enhance modular automation.
• Knowledge of performance or security testing concepts.
• Experience working in Agile or Kanban environments.

What We Offer

• 💻 Choice of work equipment (e.g., laptop, monitor, etc.)
• 🇬🇧 English classes (iTalki – $130 monthly)
• ⏰ Flexible schedule (we usually work between 09:00/10:00 and 18:00/19:00 CET or EET)
• 👶 Newborn bonus (€500 per child)
• 🧠 Patent remuneration
• 🌴 Paid leave
• 🧑‍💻 Remote work in locations without our offices
• Hybrid work in locations with offices (2 days in-office, 3 days remote):
  • 🇧🇬 Sofia: 59 G. M. Dimitrov Blvd., NV Tower, 8th floor, 1700
  • 🇷🇸 Belgrade: Makedonska 12, 11000 Belgrade, Serbia

Constructor fosters equal opportunity for people of all backgrounds and identities. We are led by a gender-balanced board committed to building a diverse and inclusive organisation where everyone can become their best self. We do not discriminate based on age, disability, gender identity, sexual orientation, ethnicity, race, religion or belief, parental and family status, or other protected characteristics. We welcome applications from women, men and non-binary candidates of all ethnicities and socio-economic backgrounds. We encourage people belonging to underrepresented groups to apply.