QA Engineer - Core R&D

Remote | Full-time

About Us

Gateway.fm zkEVM optimistic rollups $1 billion non-custodial

Stakeway unlocking the full potential of decentralized technologies.

The Role

QA Engineer reliability, scalability, and performance Erigon JSON-RPC APIs CDK-based infrastructure

What You’ll Do

• Design, write, and maintain test plans and cases forErigon(Ethereum node) deployments
• Build and extendautomated testsfor APIs, infrastructure, and blockchain components
• Performmanual and exploratory testingof new features, deployments, and updates
• Conductload and performance testingusing tools likek6andpolycli
• Test and validateJSON-RPC interactionsand behaviors
• Collaborate closely with developers to identify and troubleshoot issues early in the development cycle
• Help optimize and scale testing practices as our infrastructure evolves

Erigon

automated tests

manual and exploratory testing

load and performance testing k6 polycli

JSON-RPC interactions

Collaborate closely with developers to identify and troubleshoot issues early in the development cycle

Help optimize and scale testing practices as our infrastructure evolves

Tools You’ll Work With

• k6(Load testing)
• polycli(Blockchain API testing)
• Kurtosis(End-to-end environment testing)
• Hive(Ethereum testing framework) –nice to have

k6

polycli

Kurtosis

Hive

What We’re Looking For

• 5+ years of experience inQA Engineering, covering both manual and automation testing
• Proven experience testingbackend services,APIs, andinfrastructure systems
• Familiarity withblockchain technology— Erigon experience is a major plus
• Strong background inload and performance testing
• Deep understanding ofAPI testing methodologiesand tools (e.g., Postman, Newman)
• Scripting skills (Python, JavaScript, or similar) for automation and tooling
• Detail-oriented with strong analytical and problem-solving skills
• Comfortable working independently in afully remote, fast-paced environment

QA Engineering

backend services APIs infrastructure systems

blockchain technology

load and performance testing

API testing methodologies

Scripting skills (Python, JavaScript, or similar) for automation and tooling

Detail-oriented with strong analytical and problem-solving skills

fully remote, fast-paced environment

Bonus Points

• Experience withAWS CDKor similar cloud development tools
• Hands-on experience testingEthereum clientsandJSON-RPC interfaces
• Familiarity withCI/CD pipelinesand integrating automated tests

AWS CDK

Ethereum clients JSON-RPC interfaces

CI/CD pipelines

Why Join Gateway.fm?

• Work onreal blockchain infrastructurepowering live production systems
• Fully remote andflexible work setup
• Flat and fast-moving team — your work will have avisible impact
• Opportunity toshape QA processes and toolingfrom the ground up

real blockchain infrastructure

flexible work setup

visible impact

shape QA processes and tooling

If you’re excited about high-impact engineering, decentralized infrastructure, and a culture of ownership — we’d love to hear from you.

Apply now and help us build the backbone of Web3.