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🤖 15+ AI Agents working for you. Find jobs, score and update resumes, cover letter, interview questions, missing keywords, and lots more.
Exadel • São Paulo, Brazil
Role & seniority
Stack / tools
Blockchain/crypto testing: smart contracts (Hardhat, Truffle, Remix)
API testing: Postman, Swagger
Testing types: functional, regression, integration, performance
Languages (nice-to-have): JavaScript, Python, Go
Additional (nice-to-have): Selenium, Cypress, Playwright; Ethereum/Hyperledger/Polygon knowledge
Top 3 responsibilities
Create, execute, and document manual and automated test plans and test cases for tokenization systems, smart contracts, and crypto asset functionality
Test end-to-end interactions across distributed systems, APIs, blockchain components, and supporting services
Support release cycles, monitor in production, and perform root-cause analysis; participate in agile ceremonies and promote quality-first practices
Must-have skills
Proven experience as a QA Analyst / Tester in software development
Familiarity with smart contracts and blockchain testing tools
Strong understanding of functional, regression, integration, and performance testing
API testing expertise (Postman, Swagger)
Fluent English for documentation and communication
Strong analytical thinking and clear communication
Nice-to-haves
Test automation experience (Selenium, Cypress, Playwright)
Blockchain tech knowledge (Ethereum, Hyperledger, Polygon) and crypto security concepts
Background in fintech/tokenization/Web3
Basic programming skills (JavaScript, Python, Go)
Location & work type
Why Join Exadel We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks. From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next. What powers it all? Our people are ambitious, collaborative, and constantly evolving. What You’ll Do Create, execute, and document manual and automated test plans and test cases for tokenization systems, smart contracts, and crypto asset functionality Test end-to-end interactions across distributed systems, APIs, blockchain components, and supporting services Participate actively in agile ceremonies and champion a quality-first mindset Collaborate with product managers, developers, and architects to identify risks and improve processes Support release cycles, monitor behavior in production, and perform root-cause analysis using a detective-style approach Validate integrations, data flows, and security-relevant behaviors across blockchain and backend services What You Bring Proven experience as a QA Analyst / Tester in software development environments Familiarity with smart contracts and tools such as Hardhat, Truffle, or Remix Strong understanding of functional, regression, integration, and performance testing Hands-on experience testing APIs with tools like Postman or Swagger Fluent English for documentation, communication, and technical discussions Strong analytical thinking, curiosity, and clear communication skills Nice to Have Experience with test automation frameworks such as Selenium, Cypress, or Playwright Knowledge of blockchain technologies (Ethereum, Hyperledger, Polygon, or similar) and blockchain/crypto security concepts Background in fintech, financial services, tokenization, or Web3 organizations Basic programming skills in JavaScript, Python, Go, or similar languages Legal & Hiring Information Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs Your Benefits at Exadel Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details. International projects In-office, hybrid, or remote flexibility Medical healthcare Recognition program Ongoing learning & reimbursement Well-being program Team events & local benefits Sports compensation Referral bonuses Top-tier equipment provision Exadel Culture We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.