Hire Vetted Quality Assurance Engineers at Upstaff - Page 1
All vetted software engineers you need to build AI, Web3, and data Products.
- Dedicated Full-time commitment for long-term or Time& Material for shorter or ongoing support
- Europe, Israel, LatAm, United States, Asia geography coverage
- Remote and hybrid engagement
- Trial period, no termination fees or hidden costs for transparent and risk-free onboarding.
Quality Assurance
All
Web Application
Cloud and Operations
Data and Analytics
Mobile Application
Blockchain
Digital Platforms
Design and Creative
Quality Assurance
Project Management
Desktop Application
Scripting and Automation
Marketing and SEO
Embedded Systems
Writing and Translation
Low-Code and No-Code
GameDev
Industrial Engineering
$40/hr
$6500/month
$6500/month
JavaScript 4yr.
Cypress
Cucumber
Postman
- 10+ years in software quality engineering with priority in automation testing and SDET;
- Programming languages: Javascript, Typescript, Ruby, Java (Basic);
- SQL Server SQL/TSQL, MS SQL Server 2005/2012, PostgreSQL/MySQL/MongoDB, MariaDB;
- Methodologies include Agile, Scrum, TDD, and BDD;
- Projects with large software service companies, SMBs and startups. Domains include CRM, banking, healthcare, insurance, and trading. Business oriented projects, working as team member and independent engineer ( USA, France, and UK teams), open source projects;
- Created test documentation/test plan; Performing functional, integration, e2e, API, system testing of product;
- Automation with Cypress, and CI/CD maintenance using tools like Jenkins, CircleCI, Docker, Github Actions, GitlabCI, and AWS cloud infrastructure;
- QA tools include Cypress, Cucumber, Jenkins, Postman, Selenium and Capybara;
- Holds a Master's Degree in Network Engineering and Economics;
- ISTQB Certification. AWS and Cisco security trainings.
- Availability and start: full-time, in two weeks
Tableau 4yr.
SQL 4yr.
Power BI 4yr.
Spotfire 1yr.
Python
- 5 years of commercial experience with PowerBI and Tableau
- 4 years of commercial experience with SQL
- Prepared a comprehensive analysis of the US real estate market with Spotfire
- Assessed data quality from sources that contained tens of thousands of customer and transaction data, by using SQL in Azure SQL Database
- Employed data-driven techniques to develop RFM analysis, and create interactive dashboards for customer trend visualization and high-value business proposals
- Upper-Intermediate English
AI
• Finance AI Evaluation: Tested AI-generated responses for accounting accuracy, financial reasoning, relevance, and consistency.
• AI Testing: Created finance-focused test scenarios covering accounting, financial reporting, audit, controls, reconciliations, and revenue recognition.
• AI Output Validation: Identified accounting errors, calculation issues, inconsistencies, unsupported conclusions, and potential hallucinations.
• Finance Workflow Testing: Evaluated AI use cases across P2P, O2C, financial reporting, reconciliation, audit, and ERP processes.
• Edge-Case Testing: Developed complex finance scenarios to assess AI reliability and reasoning in real-world situations.
Manual Testing 12yr.
Functional Testing 12yr.
regression testing 12yr.
exploratory testing 12yr.
- 12+ years leading QA in Automotive (HMI/Infotainment), Enterprise Desktop, and Web domains.
- Expert in test strategy, manual and API testing, HMI, regression, and exploratory testing.
- Proven leadership managing distributed teams, mentoring, sprint planning, and QA process improvements.
- Skilled with Jira, Confluence, Postman, SQL, Jenkins, Git, AWS, MQTT, and JMeter.
- Certified ISTQB CTFL with strong stakeholder collaboration and risk management expertise.
Python
pytest
Playwright
FastAPI
PostgreSQL
- Senior Test Automation Engineer with 11 years in embedded systems, HW/SW integration, and Python-based test frameworks.
- Expertise in Python, pytest, Playwright, FastAPI, PostgreSQL, Redis, Docker, and CI/CD pipelines.
- Developed reusable frameworks for distributed systems and IoT platforms with advanced fault injection and recovery testing.
- Background in REST API, asynchronous processing, and end-to-end system validation across API, backend, and UI layers.
- Skilled in embedded testing tools including CAPL, CANoe, dSPACE, and diagnostic protocols (CAN, LIN, UDS, XCP).
PHP 12yr.
Vue.js 8yr.
Laravel 7yr.
Symfony 4yr.
Full-stack Software Engineer with 12+ years of experience building scalable web applications using PHP, Symfony, Laravel, Vue.js, React, and API Platform. Experienced with PostgreSQL, MySQL, MongoDB, Google Cloud Platform, and Stripe integrations. Skilled in automated testing (PHPUnit, Jest, Cypress), CI/CD, Docker, Kubernetes, and Agile development. Built AI-powered solutions using OpenAI GPT-4o and Microsoft Copilot Studio. Strong expertise in API-first architecture, GraphQL, OpenAPI, and secure authentication with Laravel Passport and Auth0.
Usability tests 1yr.
API testing 1yr.
Azure Cloud Functions 1yr.
QA Automation 1yr.
Swagger 1yr.
- QA with 4+ years of experience in manual testing for mobile and web applications, specializing in functional, regression, integration, and API testing using tools like Jira, Swagger, and Postman.
- Strong expertise in SDLC and STLC processes, Agile methodology, and defect management, ensuring high-quality product delivery in financial, industrial, logistic and healthcare domains.
- Proficient in RESTful and SOAP API testing, validating request-response structures, authentication, and performance under various scenarios.
- Hands-on experience in designing and executing test cases for complex applications such as financial management, business valuation, and waste management systems..
Java 5yr.
Selenium Webdriver 5yr.
Cucumber 5yr.
TestNG 3yr.
REST-Assured 2yr.
- Over 5 years of experience in Software Engineering in Test with expertise in Java, Python, Selenium WebDriver, TestNG, Cucumber BDD, and RestAssured for API and UI automation.
- Proven track record in reducing test cycles by 26%, automating 850+ test cases, and enhancing test stability and execution efficiency using Page Object Model and explicit waits.
- Skilled in building data-driven frameworks, integrating CI/CD pipelines with Jenkins, Maven, Git, and cross-browser testing via SauceLabs.
- Experienced in Agile SCRUM methodologies, driving sprint deliveries, and fostering collaboration across QA, development, and product teams to optimize quality metrics and defect management.
Usability tests 3yr.
JUnit 3yr.
Selenium 1yr.
Playwright 1yr.
- 3+ years in SaaS QA engineering with expertise in manual and automation testing using Selenium, Playwright, and Katalon Studio.
- Proficient in Java, Python, JavaScript, TypeScript, C#, SQL, and test automation frameworks integrated with CI/CD pipelines (GitHub Actions, Jenkins).
- Strong command of STLC, risk-based testing, shift-left principles, API validation (Postman), and defect lifecycle management using Jira and Linear.
- Led QA for 3 SaaS products, designing 500+ reusable test cases covering 50+ features, achieving ~45% regression automation coverage.
- Experienced in Agile methodologies, sprint coordination, mentoring junior engineers, and driving process improvements for release stability.
Python 17yr.
JavaScript 17yr.
SQL 17yr.
Hack 8yr.
QA Automation 8yr.
- Software engineer with 17 years of experience in full-stack development, specializing in Python, Java, C#, JavaScript, and frameworks like Laravel, Django, Zend, and ASP.NET Core.
- Strong engineering foundation with multiple Bachelor degrees in Media Engineering, Civil Engineering, and Information Technology.
- Proficient in SDLC, Agile methodologies, and software development best practices, delivering scalable web, desktop, and mobile applications.
- Expertise in CMS platforms (Drupal, Joomla, WordPress, Magento) and API integration, demonstrated by developing and managing e-commerce platforms from scratch.
Python 17yr.
JavaScript 17yr.
SQL 17yr.
Hack 8yr.
QA Automation 8yr.
- Software engineer with 17 years of experience in full-stack development, specializing in Python, Java, C#, JavaScript, and frameworks like Laravel, Django, Zend, and ASP.NET Core.
- Strong engineering foundation with multiple Bachelor degrees in Media Engineering, Civil Engineering, and Information Technology.
- Proficient in SDLC, Agile methodologies, and software development best practices, delivering scalable web, desktop, and mobile applications.
- Expertise in CMS platforms (Drupal, Joomla, WordPress, Magento) and API integration, demonstrated by developing and managing e-commerce platforms from scratch.
Usability tests
SDLC
Scrum
Postman
QA Automation
Software Quality Assurance Engineer with expertise in manual and automated testing, including Selenium, Postman, and Cypress. Proficient in Agile Scrum methodology, technical communication, and various testing forms such as functional, regression, and exploratory testing. Holds an Engineering degree and multiple certifications, including SCRUM MASTER and AGILE JIRA. Well-versed in SDLC, software management, and engineering practices, with hands-on experience in diverse projects and freelance testing communities. Recognized for analytical thinking, problem-solving abilities, and a strong commitment to ensuring software quality.
RPA 7yr.
UIPath 7yr.
Power Automate
JSON
SAP
An adept RPA Developer with over 7.5 years in IT, specializing in end-to-end RPA solutions using UiPath and MS Power Automate. Experience includes over 50 successful projects across Banking, Healthcare, and more, with proficiency in integrating applications such as ServiceNow and SharePoint. Strong grasp of SDLC and project management, certified in UiPath Advanced RPA (UIP00197988) and Azure Fundamentals. Led teams in design, testing, deployment, and optimization of automation solutions, demonstrating a commitment to efficiency, compliance, and continuous improvement.
Browserstack 2yr.
Postman 2yr.
Azure Blob Storage 1yr.
TestRail
Remote Test Lab
- QA Engineer with a strong analytical background. Commercial experience since 2019.
- Hands on on both Mobile (iOS and Android native applications) and web applications.
- Proficient in employing OS emulation tools like BrowserStack and Azure Storage Emulator, and Remote Test Lab.
- Expertise includes hands-on experience with Windows, Android, iOS, HTML, CSS, SQL, and managing databases using MS SQL.
- Demonstrates comprehensive abilities in web and mobile application testing, front-end, back-end, and API testing, and database management: Postman, Swagger, and TestRail.
API testing 17yr.
JMeter 15yr.
Selenium 13yr.
Cypress 2yr.
WebdriverIO 2yr.
QA Automation Engineer | QA Manager | Freelancer | 17 years of experienceSoftware QA Test Automation
Web Test Automation
Mobile Test Automation
API Test Automation
Performance TestingSelenium WebDriver
Cypress
WebDriver.io
WebDriver.jsAppiumJMeter
PostmanBrowserStack
SauceLabsJava, JavaScript, TypeScript, Python, .NetSoftware QA Test Automation Web Test Automation Mobile Test Automation API Test Automation Performance Testing Selenium WebDriver Cypress WebDriver.io WebDriver.js Appium JMeter Postman BrowserStack SauceLabs Java, JavaScript, TypeScript, Python, .NetSkills: Test Automation · Performance Testing · Selenium WebDriver · Selenium · WebDriver · JMeter · Java · Performance Tuning · Load Testing · Software Quality Assurance · Testing · Test Strategy · Linux · ISTQB · Shell Scripting · Test Management · Quality Assurance · Automation · Non-functional Testing · System Administration · Programming · System Testing · Test Tools · Python · SoapUI
FDD
Business Analysis
Webflow
Software engineer with over 10 years of experience, specializing in web accessibility and backend development. Holds professional working proficiency in English and native level Ukrainian, with understanding of Polish and basic German. Holds Deque University certifications, showcasing depth in web accessibility knowledge. Successful track record in leading the web accessibility audit & design team and founding Inclusive IT, a company dedicated to testing websites for WCAG 2.1 standards. Technical contributions include valid cross-browser HTML/CSS coding. Experience also includes managing inclusive education projects and developing software solutions with C++, Qt, and Python/Django.
Appium
Android
Software QA engineer with over 5 years of experience in the IT industry and more than 10 years of experience in engineering and testing algorithms for rocket-embedded systems.
- Strong knowledge in the QA domain;
- Good knowledge in creating testing frameworks;
- Experienced in project and test documentation design using Jira, Confluence, Redmine, Zephyr, and Softest;
- Skilled in mobile automation testing for iOS and Android platforms using Appium, Selenium, Java, TestNG, Allure, Jenkins, and Git;
- Proficient in cross-browser testing using BrowserStack and Chrome DevTools;
- Experienced in API testing using Swagger and Postman;
- Familiar with working with databases such as PostgreSQL and DBeaver;
- Strong communication and collaboration skills.
QA Automation 5yr.
Python
CI/CD
AWS
- 5 years with QA automation
- Strong testing theory understanding. Defect life cycle and issue workflow understanding, Experience in creating and executing test cases. Reporting
- Experience with data and BI tools
- DevOps experience with CI/CD, pipelines, Docker, AWS, SQL
NVDA
Browser Stack
Zephyr
TalkBack
WCAG
- 7+ years in Web and Mobile QA strategies
- Expertise in accessibility compliance standards such as WCAG 2.1 and WCAG 2.2
- Proficiency with assistive technologies, including screen readers (NVDA, VoiceOver, TalkBack).
- Documentation and Reporting, Cross-functional Collaboration. Test Plan creation, creating test documentation for Automation
- Strong analytical and problem-solving skills, proven communication skills and conflict resolution, product ownership
- Highly proficient with a range of tools including Jira, Browser Stack, VMWare, and Salesforce,
- Demonstrates a solid grasp of both manual and automation testing strategies and a history of optimizing functional, non-functional, and UI/UX aspects of sophisticated platforms such as trading, e-commerce, and CRM systems.
- Bug’s life cycle, roles and activities in project team, positive/negative tests, smoketesting, GUI, cross-browser, compatibility, black-box, gray-box, functional, non- functional, unit testing, regression testing.
- Huge experience in mobile application testing on IOS and Android operating systems.
- Hands on experience using emulators for Android and IOS e.g. Blue Stack
- Creation of test plans, test cases, test suite, checklists, bug reports.
- Knowledge of Test Design technics. Understanding of SDLC, methodologies and the difference between types of testing.
TypeScript 5yr.
JavaScript 5yr.
React 3yr.
Playwright
Cypress
A seasoned Software Engineer with over 5 years of specialized experience in frontend development and test automation, as well as a decade in the IT sector. Key competencies include advanced proficiency with React ecosystem, TypeScript, JavaScript, Material UI, Next.js, and familiarity with backend technologies like C#. Proven track record in leading feature initiatives to improve user experiences and operational efficiency, signified by a 40% reduction in duplicate entries and a 60% rise in proactive permission requests at a cloud kitchen operations platform. Expertise in continuous integration and delivery pipelines, demonstrated by contributions to Azure DevOps and CI/CD best practices. Capable of handling both development and QA roles effectively, evidenced by the establishment of test automation frameworks using tools such as Cypress and Playwright. Adept in a variety of programming environments and methodologies, the engineer has successfully orchestrated end-to-end functional testing, test design, and has a strong record of professional advancement as a self-learner and analytical problem solver.
Manual Testing 2yr.
- Software Test Engineer with 2 years of experience in an agile Android/iOS application development environment.
- Proficient in writing tests for software and implementing testing methodologies (CMM, RUP, MSF).
- Experienced in using bug logging systems like Rational ClearQuest and Jira.
- Strong command of English, allowing for reading and composing technical texts and reports.
- Achieved a 45% reduction in order fulfillment time through effective testing strategies.
- Skilled in analyzing and clarifying requirements, planning testing processes, and tracking bugs.
- Continuously optimizing the testing process and improving team work processes.
AQA Engineer 5yr.
- Experienced AQA Engineer with 4 years of expertise in web, API, and performance testing.
- Proficient in manual testing, requirements analysis, and writing test documentation.
- Skilled in various programming languages including JavaScript, TypeScript, Python, and Java.
- Familiar with a wide range of tools and technologies such as GitHub, Azure, Selenium, Cypress, and Jira.
- Strong knowledge of software development life cycle and Quality Assurance methodologies.
- Experienced in test automation at different levels using technologies like Playwright, Jest, and Docker.
- Excellent communication and problem-solving skills, with a strong ability to prioritize and coordinate testing activities.
C# 6yr.
.NET 6yr.
API testing
UI testing
- Software Test Automation Engineer with 6+ years of experience with knowledge and hands-on experience in UI and API test automation
- Experienced in the next practices: Raising Efficiency of Test Automation, Test Automation Approaches, Development in .NET ecosystem (Test Automation), Test Automation Framework Architecture, GUI Testing, Web Service / API Testing, Testing Fundamentals, Quality Gates, Component / Integration Testing;
- Good knowledge and practical skills in C#, Selenium, Coded UI, MSTest (v1 & v2), TFS, Azure DevOps, Azure Cloud, YAML pipelines and custom C# solutions
- Experience in API Performance testing; custom solution was created from scratch in C# .NET Core
- Hands-on experience in designing Test Cases, Test Suites, and Bug Reports, as well as identifying issues
- Experience in designing and implementing automated tests and test results analysis
Manual QA
QA Automation
Senior Automation QA Engineer with over 5 years of experience in the software industry;
- Proficient in Atlassian tools (Jira, Confluence, Stash, Bamboo) ;
- Skilled in automation testing using Java, Selenium, WebDriver, Selenide, XPath, CSS, JUnit, TestNG, Maven, and Gradle;
- Strong background in API and UI automation, with expertise in developing automation frameworks from scratch;
- Experienced in continuous integration and deployment using tools like TeamCity and Jenkins;
- Knowledgeable in load and performance testing using Apache JMeter;
- Experienced in using version control systems like Git;
- Familiar with databases like MySQL, Mongo, and ClickHouse.
Test Automation 17yr.
Mihai Serdean is a software engineer with 17 years of experience in IT software and QA. He is currently working as a freelancer in software quality assurance and is part of various freelance networks such as Toptal, Upper, Expertlead, and WorkGenius. Mihai has expertise in test automation, performance testing, and using tools such as Selenium WebDriver, Cypress, JMeter, and Postman. He is skilled in multiple programming languages including Java, JavaScript, TypeScript, Python, and .Net. Mihai has a strong background in computer science, holding both a Master's and Bachelor's degree from Universitatea "Babeș-Bolyai" din Cluj-Napoca. He has experience in implementing QA strategies, managing QA teams, and improving QA processes. Mihai has worked with various companies and has a track record of delivering high-quality software solutions.
API testing 3yr.
QA Automation 3yr.
Agile 3yr.
Selenium 1yr.
TestNG 1yr.
Software Analyst Tester with over 3 years in the financial services industry, proficient in end-to-end, functional, regression, and automation testing. Expert in Selenium, TestNG, Jira, and Agile methodologies, demonstrating significant improvements in software quality and QA efficiency. Record of managing 100+ defects and reducing UI errors by 10% through mobile testing innovations. Agile contributor with solid Java skills, instrumental in automating key testing workflows and enhancing testing coverage. Holds a Bachelor's in Computer Science, backed by a suite of certifications in JIRA, Postman API, and Selenium Automation. Recognized for autonomous project leadership and a substantial 30% improvement in QA processes via BDD implementation with Cucumber.
Dynatrace 6yr.
Dynatrace-Certified Expert – Application Performance Monitoring & ConsultationProfessional Certified consultant with over 6 years of high-impact APM experience, supporting financial institutions, telecom companies, and large enterprises. My qualifications and recent client successes make me an ideal fit for your long-term consultation project.Key Offerings:
• Certified in Dynatrace Professional modules (certification PDF attached).
• Expert in setup and deployment of Dynatrace (SaaS/Managed) across enterprise sites.
• Advanced dashboard customization, alert optimization, and integration with ITSM tools (ServiceNow, Jira).
• Deep knowledge of Real User Monitoring (RUM), Synthetic Monitoring, RCA, logs/data migration, and FinOps.
• Extensive hands-on work with Prometheus, Grafana, OpenTelemetry, Kubernetes, and AWS.
• Strong SRE background: expert in chaos engineering, resilience testing, auto-remediation.
WCAG
Quality Assurance
This engineer brings a robust background in web accessibility and compliance, with a strong focus on creating inclusive and user-friendly digital products. Key highlights include proficiency in conducting comprehensive accessibility audits to ensure WCAG 2.1 AA and Section 508 compliance, as well as substantial hands-on experience managing the full defect lifecycle for accessibility issues. Beyond technical skills, this candidate shows a keen ability to drive organizational change through the creation of end-to-end accessibility processes, evidenced by the successful remediation of thousands of accessibility defects. This profile stands out for a combination of technical expertise within the web compliance domain, a proven track record of leading accessibility initiatives, and a thorough understanding of the accessibility requirements that shape exceptional UI/UX design.
Playwright
JavaScript
Selenium Webdriver
Cypress
pytest
- Test Engineer with experience in Automation and Manual QA, 8+ years in the IT industry;
- Expertise in web automation using Playwright and Cypress, Postman, PyTest;
- Skills in JavaScript, TypeScript and Python;
- Experience in REST API testing, performance testing, and integration with CI/CD pipelines;
- Knowledge of BDD with Cucumber and working in Agile/Scrum environments;
- Implemented test automation for e-commerce and large enterprise systems;
- Experience with Java Selenium WebDriver Automation;
- Skills in mobile application testing on iOS and Android operating system (emulators for Android and iOS, e.g., Blue Stack).
Appium
Selenium
Highly experienced software engineer with over 10 years in QA, leading various QA teams and projects.
- Expertise in testing automation tools Appium, Selenium, Cypress, WebDriver, and Protractor;
- Experience with Java, Groovy, JavaScript, and TypeScript;
- Skilled in creating test automation frameworks for Web UI/API/Mobile platforms;
- Proficient in developing test documentation such as test plans, test cases, and incident reports;
- Good understanding of systems development life cycle methodology and QA methodology and tools;
- Strong knowledge of CI environment configuration and different operating systems (Windows, Linux);
- Ability to quickly learn new technologies and approaches and implement them effectively.
Java
- Experience more than 15+ of professional Software Development and Automation Testing
- Tech Lead of QA department, enormous experience in mentoring;
- Participation in testing of software applications for a range of business domains;
- Experience in testing of different projects for different OS and Application Servers;
- Experience with Java, Python automated testing;
- Experience with Relational databases and ORM technology;
- Experience in writing testing documents (test plans, test cases, etc.);
- Experience in common testing techniques including black box, functional, smoke, load, performance, regression, GUI, usability, scenario, etc.;
- Good communication skills, ability to learn new software and processes quickly and efficiently.
- Upper-Intermediate English.
- Availability starting from 08.08.2023