Middle SDET Jobs

Serokell

Location:

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

Save Job

Apply Position

Job Description:

We are looking for a Middle SDET (QA Automation) to join a team of fierce and fun Serokellers and help ensure the stability, reliability, and quality of a blockchain-based solution.

Job Responsibility:

Support QA activities from pre-launch through stabilization after release
Build and maintain TypeScript-first automation (Playwright, Jest, Node-based tooling)
Design API, UI, and CLI test coverage with reliable, actionable signals
Integrate tests into CI/CD (GitHub Actions, Docker
basic pipelines) and keep them green
Collaborate with engineers/DevOps to provision containerized test environments and, when needed, ephemeral testnets
Author and maintain manual and automated test cases
keep test docs current
Log, triage, track, and re-test defects in the agreed issue tracker
Participate in release readiness reviews and sign-off
Use Git proficiently in day-to-day work (branching, merges, rebases, conflict resolution)

Requirements:

3+ years of QA in blockchain or fintech
TypeScript test automation experience (Playwright, Jest, Node-based frameworks)
Solid understanding of core data structures
Hands-on API / UI / CLI automation
CI/CD integration experience (GitHub Actions, Docker
basic pipelines)
Git proficiency (branching, merges, rebases, conflict resolution)

Nice to have:

Rust familiarity
Performance and load testing (k6)
Security testing
Smart contract / DApp QA (Hardhat, Foundry, ethers.js, viem)
Web3 QA on major chains (Ethereum, Bitcoin, Solana, etc.)
Blockchain node and RPC testing, event verification
Containerized test envs (Docker, K8s, ephemeral testnets)

What we offer:

Competitive salary
Attractive international projects
Participation in the leading world conferences
International teams and multicultural environment
Fully remote work and flexible working hours
Possibility to take days off at any time you need
Investment in your professional and career growth, which will correspond to wage growth
Mentoring and training
Opportunity to contribute to one of the functional programming industry’s leading blogs
Therapy sessions to support your well-being

Additional Information:

Job Posted:
December 12, 2025

Work Type:

Remote work

View All Jobs In This Company

Job Link Share:

Middle SDET