Hire the Top 2% of
Remote Rational Performance Tester Developers
in the United Kingdom

Moazam .

Vetted Rational Performance Tester developer in the United Kingdom (UTC+1)

Self-taught full stack developer. Helped over thousands of clients to build their small to large scale websites. I love building high performance and scalable websites. Over the past few years, I have been heavily working on WordPress and Laravel. My top skills are: WordPress (oh, not to mention I used many popular plugins like: ACF, Gravity Forms, etc.), Laravel, MongoDB, MySQL, ElasticSearch, jQuery, Bootstrap, Redis, RETS integration, Plesk, WHM and many more! I occasionally do system admin tasks as I am managing plenty of servers running on CentOS. If you are lost in coding, need a hand or running out of ideas, feel free to reach out to me. I am not available for a full time hire but happy to help you with any kind of help you need with your projects.

Precious A.

Vetted Rational Performance Tester developer in the United Kingdom

Software engineer with 4 years of experience developing responsive solutions using cutting-edge technologies. Proven track record of enhancing user satisfaction by 50% and product efficiency by 72% through innovative development practices.

emmanuel K.

Vetted Rational Performance Tester developer in the United Kingdom (UTC+1)

Experienced Senior Software QA Engineer | Automation Testing | Continuous Improvement Results-driven Senior Software QA Engineer with expertise in designing and implementing automated testing frameworks. Skilled in driving process improvement initiatives to enhance software quality and efficiency. Collaborative team player dedicated to delivering high-quality products. Strong analytical and problem-solving abilities with effective communication skills. Experience Highlights: \- Led successful QA effort for "Project One Million," onboarding one million customers and making the app the top financial app on App Store and Play Store. \- Improved product quality by 55% through the development and implementation of automated testing processes for web and mobile applications. \- Mentored team members, increasing test automation proficiency by 55% through knowledge-sharing sessions. \- Automated testing of Abu Dhabi government websites, reducing testing time by 30% and improving test coverage by 50%. \- Conducted functional, API, and UI testing, resulting in a 60% increase in defect identification and resolution. \- Implemented reporting tools, improving test result accuracy by 40% and reducing reporting time by 20%. Skills: Python | Selenium | Appium | Postman | JMeter | Jenkins | Git | SQL | Communication Skills | JavaScript | webdriver.io | Cypress | Java | Pandas

Behzad M.

Rational Performance Tester developer in the United Kingdom

Seasoned software engineer with over decade of comprehensive knowledge in embedded systems, firmware development, and real-time software. Proven track record of delivering complex system solutions and fostering technical innovation across a variety of platforms. Adept with C/C++ languages and hands on experience with system-level design and debugging throughout the entire software development lifecycle. Demonstrated ability to engage effectively with customers and technology providers to ensure seamless project execution.

Hubert D.

Rational Performance Tester developer in the United Kingdom (UTC+1)

With a PhD from UCL in Machine Learning and Digital Signal Processing for Optics, I developed practical algorithmic solutions for the next-gen cloud infrastructure with partners such as Microsoft Research. Now an Associate Financial Engineer/Analyst, I research data-driven models and analytics, bridging high-tech solutions with quant finance. I am passionate about applying quantitative and engineering skills to solve 'impossible' challenges using the latest technologies.

Rajeshwar B.

Rational Performance Tester developer in the United Kingdom

I am currently working at Foundry Visionmongers in their London(UK) office and have a Masters degree in High Performance Computing from University of Edinburgh along with 12+ years of professional work experience as a developer, working mainly on distributed systems, multithreaded applications, networking, and performance optimization.

Gurgen H.

Rational Performance Tester developer in the United Kingdom

I am a seasoned software engineer with over a decade of experience, currently specializing in Python development and data engineering. My expertise includes workflow orchestration, scripting, and building scalable backend systems. I have contributed to performance optimization, package deployment improvements, and integration of modern task management solutions. I thrive both as a collaborative team member and as an independent problem solver, with a proven ability to deliver high-quality code and innovative solutions. My experience spans across diverse domains, and I bring a strong focus on technical excellence, attention to detail, and continuous learning to every project I undertake.

Ozan O.

Rational Performance Tester developer in the United Kingdom

With over 20 years of experience, I create scalable solutions that improve performance, drive growth, and enhance marketing technology operations. I have a strong background in building tools that streamline marketing automation, boost efficiency, and support business goals. Skilled in system integration across databases, CRM/CMS, and cloud environments, I work closely with cross-functional teams to enable data-driven decision-making and deliver seamless, user-friendly tools. My focus is on meeting business needs through solution architecture and technology that simplify operations and enhance team productivity.

Arqam B.

Rational Performance Tester developer in the United Kingdom

I am a forward-thinking iOS Developer with over 6+ years of experience, specializing in Swift, SwiftUI, Objective-C, and design patterns like MVVM, MVP, and MVC. I prioritize writing clean, testable code and have implemented SOLID principles in various apps to ensure maintainability and scalability. While I have worked on Test-Driven Development (TDD) rather than on system architecture, I am eager to learn and expand my expertise in these areas to contribute more effectively to future projects. I take ownership of my work and thrive in dynamic team environments, where my proactive approach to problem-solving drives successful outcomes aligned with organizational goals. My commitment to professional growth, along with a focus on app stability and innovative features, ensures I stay ahead of industry trends and continue delivering high-quality results that add significant value to your team.

Tianzhang C.

Rational Performance Tester developer in the United Kingdom (UTC+1)

I am a Research Software Engineer with experience in ML model development, CI/CD pipelines, and parallel computing. Skilled in Python, PyTorch, LLM, and time series.