Test Engineer; m​/f​/d

Remote or in Traunstein, Germany – Full time

• Location: 100% remote, hybrid or at our office in Traunstein – you decide
• Working hours: Full-time
• Work model: Flexible by arrangement
• Travel: Very limited, approximately twice a year for team events
• Salary: €45,000–90,000 gross per year, depending on expertise

With our oneclick™ Desktop-as-a-Service platform, we provide secure, scalable cloud work spaces for SMEs and large enterprises across sectors including retail, industry, logistics, healthcare and the public sector. In addition to our headquarters in Zurich and our development centre in Traunstein, we are represented in 7 countries across 4 continents. For three consecutive years, we have been the only European vendor featured in the Gartner® Magic Quadrant™ for Desktop as a Service, recognised for our innovation and data sovereignty.

We’re looking for an experienced Test Engineer (m/f/d) to join our growing team, taking responsibility for ensuring our complex, distributed platform runs reliably, securely and at high performance. You will build and maintain the test strategy across multiple services and layers, ranging from unit tests of individual microservices through to end-to-end tests covering the entire RDP/Web Socket streaming infrastructure. You will work closely with our development, Dev Ops and product teams and play a key role in embedding quality early in the development cycle.

With us, you will have a direct impact on the quality of a live SaaS platform and work in a small, technically driven team with short decision‐making paths. Our modern tech stack is consistently cloud‑native, Kubernetes‑first and Git Ops‑oriented. You will help shape our test strategy from the ground up and build something that lasts.

Test strategy & architecture

• Development and maintenance of a holistic testing strategy (unit, integration, E2E, load and security tests) for our oneclick platform
• Building and further developing the test automation infrastructure in Git Lab CI/CD
• Defining coverage thresholds and quality gates in the CI pipeline

Microservice tests (Go / Type Script)

• Writing and maintaining unit and integration tests for Go‑based microservices
• Extending the Jest/Supertest test suite for the REST services (Node.js/Type Script, Express, Passport)
  Testing Graph
  
  QL APIs and their schema consistency
• Mocking and stubbing external dependencies (Redis, MySQL/Percona, Twilio, Salesforce, Kubernetes API)

Backend tests (PHP/Laravel)

• Building and maintaining a PHPUnit/Pest test suite for the PHP‑based backend services
• Feature and unit tests for Laravel controllers, service classes and Eloquent repositories
• Testing MQTT communication (Verne
  
  MQ) and asynchronous event flows
• Database testing strategies for MySQL/Percona XtraDB Cluster (PXC): migrations, transactions, collations
• Mocking external dependencies within Laravel (HTTP clients, queue jobs, events)

Frontend tests (Vue.js / Playwright)

• Building a Playwright E2E test suite for the Vue.js‑based frontends
• Coverage of critical user journeys: login/SSO, app start‑up, desktop streaming, admin workflows
• Visual regression tests for white‑label configurations
• Component‑level tests with Vitest or Vue Test Utils for isolated UI logic
• Integration of Playwright tests into Git Lab CI with screenshots and traces as artefacts

Load testing & performance

• Designing and running load tests for critical API endpoints and streaming connections (e.g. with k6 or Artillery)
• Identifying performance bottlenecks and regressions
• Smoke and sanity tests following deployments to dev, staging and live environments

Security & compliance testing

• Coordinating and tracking penetration tests (e.g. A3
  
  Sec engagements)
• Testing CORS policies, authentication flows (OAuth, SSO, Salesforce), ingress whitelists
• Validating TLS/mTLS configurations, cipher suites and certificate renewal

• Experience with PHP/Laravel testing: PHPUnit, Pest, Laravel Dusk
• Knowledge of Playwright or Cypress for frontend E2E tests
• Experience with Vitest or Vue Test Utils for Vue.js component tests
• Experience with Graph
  
  QL testing
• Understanding of the RDP protocol, Web Socket…