QA Engineer (Remote locations)

Experience testing Web3 applications — wallet flows, testnets, RPC interactions, or smart contract tooling such as Foundry or Hardhat.

Experience building evaluation harnesses for LLM-powered features, including regression testing of non-deterministic output.

Background in security testing, OWASP methodology, or hands-on time with tools like Burp Suite.

Performance and load testing with k6, Locust, JMeter, or similar.

Experience with observability tooling and using production telemetry to find gaps in test coverage.

Open source contributions to testing frameworks or developer tooling.

Knowledgeable of the latest trends in Blockchain and DeFi.

Our mission is to provide value-add security services and products to the world’s most cutting edge technology firms and that starts with blockchain tech. Founded in 2019, Halborn is an elite cyber security company focused on solving complex adversarial problems unique to the cryptocurrency and fintech industries. From breaches and social engineering to stolen private keys and economic hacks, Halborn solves it. Our clientele are the exclusive blockchain companies as well as new startups with high growth trajectories.

Halborn is a globally distributed team of 100+, looking to grow our elite team of white hat hackers, sales professionals, security engineers and DevSecOps specialists who value independence, want to make their own hours, work for themselves and have a passion for the ever evolving cryptocurrency industry.

Halborn Inc is an Equal Opportunity Employer. We do not discriminate based upon race, religion, color, national origin, sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, education, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics and celebrates the diversity of its growing team.

We are unable to sponsor or take over sponsorship of employment Visas at this time.

Recruitment agencies and consultants may not submit resumes/CVs through this website or directly to managers. Halborn does not accept unsolicited agency resumes, and will not pay fees to any third-party agency or company that does not have a signed agreement with Halborn Inc.