Selenium jobs in crypto and blockchain companies

Job Objective:   We're looking for a passionate and driven Software Development Engineer in Test (SET) to play a crucial role in ensuring the quality and reliability of our products. In this hands-on role, you will define and implement robust test strategies, maintain automation frameworks, and contribute to seamless and timely product releases.  You will be a key member of our engineering team, driving our test automation strategy, collaborating closely with developers, and championing a quality-first culture. Your work will directly impact the user experience and the success of our products.   Responsibilities:   Comprehensive Test Coverage & Release Velocity Collaborate closely with product and engineering teams to ensure comprehensive test coverage, effectively prioritize test execution, and provide clear updates on progress and results—all while driving improvements in release velocity and maintaining robust production health. Test Plan Design & Execution Define, design, and execute comprehensive test plans in close collaboration with cross-functional teams. Participate in design and specification reviews to establish clear acceptance criteria, ensure thorough test coverage, and document all testing outcomes. Provide regular progress updates and feedback to stakeholders, driving alignment on testing priorities and release readiness. Champion quality assurance best practices and promote a culture of quality throughout the organization. Test Case Development & Automation Own the end-to-end development and execution of test cases by analyzing design documentation and requirements, covering positive, negative, and corner cases. Integrate test cases into automated testing frameworks (UI, API) and continuously refine them to maintain comprehensive regression and smoke test coverage. Automation Framework & Infrastructure Improve and maintain existing automation frameworks and infrastructure. Collaborate with engineers to develop reliable, scalable, and reusable automated tests. Schedule and participate in testing efforts to ensure every release meets quality standards without regression. Exploratory Testing & Defect Management Conduct exploratory testing to identify edge cases and ensure product robustness. Proactively track, reproduce, and triage defects through resolution, working with stakeholders to prioritize and fix issues. Provide clear test metrics and defect analysis to inform release decisions. Monitoring & Reporting Build and maintain monitoring systems for test stability, promptly communicating issues to engineering teams. Monitor test stability, identify and address issues, and contribute to building systems for monitoring test health. Document and communicate test results, metrics, and best practices across the organization to drive continual process and quality improvements.     Requirements:    Bachelor's degree in Computer Science or a related field, or equivalent practical experience. 5-7 years of hands-on experience as an SDET, Automation Engineer, or developer with a strong focus on testing. Excellent problem-solving and analytical skills. Strong communication and collaboration skills. Ability to prioritize work and manage multiple testing initiatives simultaneously. Comfortable working with CI/CD pipelines and integrating automated tests. Strong object-oriented programming skills. (e.g., Python, Kotlin, or JavaScript) Experience building and maintaining test automation frameworks. Experience with UI and/or API test automation tools and frameworks (e.g., Selenium, or Cypress). Solid understanding of software testing methodologies and best practices. These are the applicable requisites, although equivalent competencies in any of the above will also be considered. Startup (fintech) plus  Advanced English     Perks   Labor Hours: Monday to Friday 9:00 am to 6:00 pm (flexible according to results) Modality: Full-time, Remote, Contractor Salary: $4,500 to $5,000 USD monthly + benefits Open Positions: 1 Competitive salary Initial stock options grant Annual performance bonus Health, dental, and vision plans  Remote work environment, although we have offices in Miami and Mexico City and would love to work in hybrid model if you are up to it. Continuous learning opportunities  Unlimited PTO Paid parental leave Empowering opportunities for growth in a dynamic entrepreneurial environment   About the Company:   The Company is a chat-based remittance platform revolutionizing cross-border payments for Latinos in the U.S. by leveraging Blockchain and AI. The company values dynamic and innovative professionals who thrive in a fast-paced environment, offering opportunities to make impactful contributions to underserved communities. Joining the company means being part of an award-winning team backed by top-tier venture capital firms from Silicon Valley, Europe, and Latam.     Location: Remote Mexico, Argentina, Colombia, Brazil, Reynosa Nuevo Leon, Ciudad Juarez Chihuahua, Nogales Sonora, Tijuana Baja California  

Blum is a cutting-edge hybrid exchange tailored for Telegram and mobile platforms. Our team is passionate about technology and dedicated to pushing the boundaries of what's possible in the trading world. We are revolutionizing the way trading is done, providing seamless and secure services to both individual users and businesses. By leveraging the power of Telegram, we offer a unique and accessible approach to trading, catering to a global audience.   Launched in April, Blum has gathered over 80 million users and has become one of the top 3 most popular apps on Telegram worldwide. Our experienced team brings years of expertise from leading crypto projects, including Binance, Trust Wallet, Crypto.com, Bitget, and more.   We are seeking a talented Middle+ QA Autotest Engineer to join our innovative team and contribute to our mission. Responsibilities Platform modules testing using various types of testing Conducting manual testing of website sections according with self-written cases, plans and with already existing ones Conducting a full cycle of regression testing of tasks and bug reports Testing the page layout under different user behavior scenarios for each module separately, both on desktop systems and on mobile devices (smartphones and tablets) Participation and self-conducting load testing of the projects Requirements Confident knowledge of SQL Knowledge of RESTful API, gRPC, WebSocket, client-server architecture Creating test cases and test scenarios Test documentation organization and support Web and mobile application testing experience (frontend & backend), priority on Flutter Autotest experience (Python, Pytest, Playwright, Selenium, Cypress, Requests) Knowledge of basic UX practices Basic accessibility testing (A11Y) Familiarity in working with Postman and Swagger Vulnerability testing (SQL injections, XSS) Experience with Docker and Selenoid or Selenium Grid or Cypress Familiarity with Allure or equivalent to build reports on autotest runs Experience working with CI/CD (GitLab, Jenkins, GitHub actions, Bitbucket) for start deployment Hands-on experience in network sniffers (Charles Proxy/Fiddler, Proxyman) Self-motivated and must be able to grasp issues quickly Strong organizational, analytical, and communication skills Proactive and comfortable working individually as well as collaboratively Fluent English speaker With Blum you will Join one of the largest projects within Telegram and make an impact in the blockchain ecosystem Work with a talented and diverse team in a dynamic environment that encourages continuous learning and professional development Enjoy flexible working hours, unlimited vacation days and a remote-first approach Receive compensation for: equipment, education, sports and coworking Have opportunities for professional growth in high-load systems and web3 technology Take on challenging and complex tasks that push the boundaries of your expertise Get competitive monthly salary, based on experience and skills Ready to join us? Send your resume and become part of our exciting journey!

Paxful is the world’s largest people-powered marketplace, connecting over 14 million users across 140+ countries to move, save, and store money - even without a bank account. Founded in 2015 and based in the United States, Paxful offers safe, fast, and reliable access to the global economy through cryptocurrencies bought and sold on a borderless peer-to-peer payment network. With over 500 payment methods for accessing Bitcoin, USDT, and other popular digital and local currencies, Paxful is building a financial system allowing all users to participate in the digital economy.The QA Automation Engineer is responsible for designing, building, and maintaining automated testing solutions to ensure the quality and reliability of Paxful’s platform, including web applications, mobile apps (iOS and Android), and backend APIs. This role requires a deep understanding of automation tools, frameworks, and best practices, as well as hands-on experience in creating robust and scalable test suites. You’ll collaborate with developers, product teams, and other QA engineers to integrate automation into the software development lifecycle and enable efficient, high-quality releases.What will you do: Develop, maintain, and execute automated test scripts for web, mobile, and backend platforms. Integrate automated tests into CI/CD pipelines, ensuring fast and reliable build verification. Collaborate with developers to identify test requirements, edge cases, and system bottlenecks. Monitor and maintain test environments to ensure stable and repeatable results. Analyze test results, debug failures, and provide detailed feedback to engineering teams. Continuously evaluate and improve the automation framework for scalability and coverage. Build and maintain test suites for native mobile applications (iOS and Android) using tools like Appium or Espresso. Automate testing for backend APIs using tools such as Postman, RestAssured, or Swagger. Design UI automation for web applications using Selenium, Cypress, or Playwright. Conduct performance testing using tools like JMeter or Gatling to identify and resolve bottlenecks. Ensure test data and environments are managed efficiently and securely. Who you are: A self-starter with a passion for automation and quality. Analytical and detail-oriented, with strong problem-solving skills. Collaborative and communicative, thriving in cross-functional team environments. Excited to work in a fast-paced, high-impact environment. RequirementsWhat we are looking for: 3+ years of experience in test automation for web, mobile, or backend systems. Proficiency in at least one automation framework (e.g., Selenium, Appium, Cypress, or similar). Strong programming skills in languages such as Python, Java, JavaScript, or Kotlin. Ability to write clean, reusable code for test scripts. Experience with CI/CD tools and processes. Familiarity with GitLab CI/CD or similar systems preferred. Knowledge of RESTful API testing and automation tools. Ability to validate API responses, performance, and integration workflows. Understanding of test management tools and defect tracking. Experience with Jira, TestRail, or similar platforms. Recommended Skills: Experience with mobile-specific automation tools like XCUITest (iOS) or Espresso (Android). Familiarity with cloud-based testing platforms like BrowserStack or Sauce Labs. Knowledge of performance testing and benchmarking tools. Familiarity with blockchain or cryptocurrency-related platforms is a plus. BenefitsWe encourage a remote-first approach for geographically distributed teams, being open to skilled professionals from around the world. Beyond that, we are committed to transparency, openness, and supporting each other to build great things together.You can expect: Competitive salary Fully remote work environment Flexible working hours with a 4-hour overlap in Eastern Time (EST) Opportunity to work with cutting-edge technologies on impactful projects Collaborative, innovative, and supportive work culture Opportunity to mentor and lead a team of talented engineers Professional growth and development opportunities NotesWe are a fully remotely distributed team. However, we are currently unable to provide visa sponsorship for employment.Due to legal restrictions, we are unable to hire individuals residing in countries currently under international sanctions.Upon submitting your application, you consent to receive future communications. The communication will depend on the alignment of your qualifications with this position. Only eligible candidates will receive correspondence.Interested in Paxful but don't think this role is the best fit for you? View our other positions: https://paxful-crypto.workable.com Base compensation is dependent on the candidate's residence.—To recruitment agencies and outsourcing entities: Paxful maintains a strict policy of not accepting third-party applications from recruitment agencies or individual recruiters. Furthermore, any collaboration with outsourcing partners remains outside of our strategic planning.About the companyPaxful is the world’s largest people-powered marketplace, connecting over 14 million users across 140+ countries to move, save, and store money - even without a bank account. Founded in 2015 and based in the United States, Paxful offers safe, fast, and reliable access to the global economy through cryptocurrencies bought and sold on a borderless peer-to-peer payment network. With over 500 payment methods for accessing Bitcoin, USDT, and other popular digital and local currencies, Paxful is building a financial system allowing all users to participate in the digital economy.

Nisum is a leading global digital commerce firm headquartered in California, with services spanning digital strategy and transformation, insights and analytics, blockchain, business agility, and custom software development. Founded in 2000 with the customer-centric motto “Building Success Together®,” Nisum has grown to over 1,800 professionals across the United States, Chile,Colombia, India, Pakistan and Canada. A preferred advisor to leading Fortune 500 brands, Nisum enables clients to achieve direct business growth by building the advanced technology they need to reach end customers in today’s world, with immersive and seamless experiences across digital and physical channels.We are seeking a highly skilled Automation Quality Engineer to lead our automation testing efforts. This role involves both technical hands-on work with .NET-based applications and leadership duties. As a Team Lead, you will manage a small team of QA professionals, ensuring effective test automation strategies and driving the quality of our software products.As a Quality Automation Engineer you will be in charge of:- Develop, maintain, and enhance automated test scripts for .NET-based applications using testing frameworks such as NUnit, MSTest, or xUnit.- Work with developers and product owners to ensure automated tests align with functional and non-functional requirements.- Perform API testing using tools like Postman or Swagger, and implement automated API tests where needed.- Ensure integration of automated tests within CI/CD pipelines using tools such as Jenkins, Azure DevOps, or similar.- Analyze and troubleshoot test failures, identifying defects, and working with development teams for resolution.- Leadership & Team Management:- Lead and mentor a team of QA engineers, helping them grow their technical skills and improve testing strategies.- Allocate tasks, manage team schedules, and ensure timely delivery of test automation deliverables.- Advocate for best practices in automation testing within the team and the organization.- Conduct regular performance reviews and provide feedback to ensure continuous team improvement. Collaboration & Communication:- Work closely with development, product management, and DevOps teams to ensure high test coverage and seamless automation integration.- Lead the quality initiatives within Agile/Scrum teams, participating in sprint planning, daily stand-ups, and retrospectives.- Communicate automation test results, defects, and risks to technical and non-technical stakeholders.Process Improvement & Innovation:- Continuously improve the test automation framework and optimize the testing process for efficiency and effectiveness.- Evaluate and implement new testing tools and methodologies to enhance the team’s capabilities.- Stay updated on the latest trends and technologies in automation testing, especially within the .NET ecosystem.Documentation & Reporting:- Maintain thorough documentation of test cases, test scripts, and testing processes.- Ensure transparency by generating comprehensive reports on test execution, coverage, and defect tracking.To be successful at this role, we expect you to have the following experience and skills:- You must reside in Chile or Colombia- Advanced English skills- Extensive experience in .NET development and automation testing, with hands-on experience using NUnit, MSTest, xUnit, or other .NET-compatible frameworks.- Strong programming skills in C# and the .NET ecosystem.- Familiarity with version control systems like Git, and experience integrating automation tests into CI/CD pipelines (e.g., Jenkins, Azure DevOps).- Solid understanding of web technologies (ASP.NET, MVC, Web APIs) and SQL databases.- Experience with front-end test automation tools such as Selenium and API testing tools (e.g., Postman, Swagger).Leadership Experience:- Proven experience in leading a QA team or working in a team lead capacity.- Strong project management and organizational skills, with the ability to prioritize and manage multiple initiatives.- Excellent communication skills, both verbal and written, with the ability to explain technical details to non-technical stakeholders.¿What can we offer you?- Belong to an international and multicultural company that supports diversity.- Be part of international projects with a presence in North America, Pakistan, India and Latam.- Work environment with extensive experience in remote and distributed work, using agile methodologies.- Culture of constant learning and development in current technologies.- Pleasant and collaborative environment, with a focus on teamwork.- Access to learning platforms, Google Cloud certifications, Databricks, Tech Talks, etc. - Being part of various initiatives and continuous participation in internal and external activities of innovation, hackathon, technology, agility, talks, webinars, well-being and culture with the possibility not only to participate but also to be an exhibitor.- If you reside in Chile or Colombia you will also have access to several benefits related to our centers :)!Nisum is an Equal Opportunity Employer and we are proud of our ongoing efforts to foster diversity and inclusion in the workplace.