Full-Time Software Engineer in Test (SDET)

3Сommas is hiring a remote Full-Time Software Engineer in Test (SDET). The career level for this job opening is Experienced and is accepting Europe based applicants remotely. Read complete job description before applying.

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3Сommas

Job Title

Software Engineer in Test (SDET)

Posted

Career Level

Full-Time

Career Level

Experienced

Locations Accepted

Europe

Job Details

Join 3Commas as an SDET, a key part of the engineering team behind an advanced crypto trading platform. You'll work with developers, design test architecture, write code, and drive quality across real-time systems. You'll own testing and contribute to products built with Ruby, TypeScript, and React.

Responsibilities:
  • Develop and maintain automated tests: unit, integration, and end-to-end
  • Design test strategies with a strong emphasis on automation
  • Test real-time and asynchronous systems: WebSocket, Kafka, REST APIs
  • Integrate test coverage into the CI/CD pipeline (GitLab, Docker, Kubernetes)
  • Monitor stability, detect flakiness, and identify performance regressions
  • Investigate bugs deeply
  • Write post-mortems for incidents and implement improvements
  • Participate in load and chaos testing
  • Work with observability tools
  • Collaborate with developers, DevOps, and product managers

Requirements:
  • Understanding of the software development lifecycle and the QA role
  • Familiarity with TDD and shift-left testing
  • Strong prioritization skills
  • Critical thinking and a proactive approach
  • Experience with either Ruby or React
  • Excellent communication skills
  • Proficiency in English at B2 level or higher
Testing & Automation:
  • Proficient in TypeScript
  • Experience with Playwright, Jest, or similar tools
  • Experience with Page Object Model
  • Solid skills in API testing: REST, WebSocket, optionally gRPC
  • Deep knowledge of test design
DevOps & Observability:
  • Confident with Docker and solid understanding of Kubernetes
  • Comfortable working with logs, alerts, and dashboards

Nice to Have:
  • Experience working with Ruby (Rails) or React.js in a production environment
  • Experience testing event-driven architectures (Kafka)
  • Domain knowledge in crypto trading
  • Familiarity with performance testing tools
What We Offer:
  • Growth-Driven Role: Transition from manual QA to automation with mentorship.
  • Remote-First Culture: Work in a distributed team.
  • High Ownership: Play a key role in improving product quality.
  • People-First Environment: Join a mission-driven company with a culture of trust.

FAQs

What is the last date for applying to the job?

The deadline to apply for Full-Time Software Engineer in Test (SDET) at 3Сommas is 27th of July 2025 . We consider jobs older than one month to have expired.

Which countries are accepted for this remote job?

This job accepts [ Europe ] applicants. .

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