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Software Testing Engineer

PortugalRemote

Lisbon Portugal, Remote

We are seeking a skilled and passionate Software Testing Engineer to join our innovative blockchain project team. This role focuses on hands-on testing, maintaining test automation frameworks, and ensuring high-quality releases. The ideal candidate will have a strong background in QA Automation and blockchain domain knowledge.

You will:

  1. Work independently with a strong desire to improve existing solutions
  2. Create, manage, and optimize automated testing frameworks, ensuring our products' continuous and flawless updates
  3. Understand business scenarios and tech design, design and develop auto tests
  4. Collaborate with a tech lead and engineering team to meet technical requirements and deliver on project goals
  5. Prioritize sharp & iterative delivery on tight deadlines
  6. Stay updated with new trends and best practices specifically with a focus on scaling blockchain infrastructure and performing systematic testing

What you bring:

  1. 3+ years of experience in software testing
  2. Strong knowledge of Node.js/TS, Playwright, Jest, Synpress
  3. Strong knowledge of functional / non-functional testing
  4. Experience in finance domain
  5. Excel in communication and collaboration across teams
  6. Desire to have skin in the game & make it big

Nice to have:

  1. Experience in blockchain domain
  2. Understanding of DeFi
  3. Understanding of Prediction Markets
  4. Previous work in a startup or product-focused environment, especially in DeFi
  5. Passion for decentralization and the broader impact of blockchain on industries
  6. Experience using prediction markets or understanding of how they function

Tech stack

Frontend

  1. Typescript, Node.js, Next.js
  2. ChakraUI / Tailwind.css
  3. Axios, React-query, GraphQL / Apollo
  4. React context, React hooks
  5. Wagmi, Web3Auth
  6. Account Abstraction - Pimlico
  7. Jest, Vitest, Playwright
  8. Eslint, Prettier, Husky

Backend

  1. Typescript, Node.js, Nest.js
  2. Gnosis Safe
  3. Google Cloud

EVM

  1. Solidity, TypeScript
  2. Hardhat, Foundry
  3. Mocha, Chai, Smock
  4. OpenZeppelin Contracts, Ethers-v6, Typechain, Conditional Token Framework(CTF)
  5. ESLint, Prettier, Husky

Benefits:

  1. Competitive option stock & salary based compensation
  2. Unlimited PTO
  3. Global team offsites
  4. Professional development opportunities
  5. Hardware (if needed)
  6. Office in Lisbon

Posted on: 6/7/2025

Limitless Labs

limitless.exchange is a prediction market app we’re scaling to viral, mainstream adoption. We processed more than $170M in trading volume, with a focus on financial markets like crypto, stocks & commodities. We have strong signs of PMF, with 40% 7 day retention among traders and the average trader spending 5.5hrs per week on the platform.

Website

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