
User testing is easy and inexpensive and will substantially improve product designs. The insights gained from observing how people use a digital product are well worth it, as outlined in this six-step process.
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Maintain your software’s quality and reliability with Toptal’s Manual Software Testing Services. Our dedicated team provides meticulous testing solutions that identify potential issues, enhance user experience, and deliver robust application performance.
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As Toptal’s CEO of Technology Services, Robert leads strategy and operations across our technical services portfolio, spanning AI, automation, and operations. He previously served as Deloitte’s Managing Director & Chief Commercial Officer, transforming its Cloud Operate and Engineering business into a multibillion-dollar operation. He held senior roles at IBM, Velocity, co-founded Corio, and was CIO for two Fortune 100 manufacturers.As Toptal’s CEO of Technology Services, Robert leads strategy and operations across our technical services portfolio, spanning AI, automation, and operations. He previously served as Deloitte’s Managing Director & Chief Commercial Officer, transforming its Cloud Operate and Engineering business into a multibillion-dollar operation. He held senior roles at IBM, Velocity, co-founded Corio, and was CIO for two Fortune 100 manufacturers.
Previously At









CEO, Technology Services
As Toptal’s CEO of Technology Services, Robert leads strategy and operations across our technical services portfolio, spanning AI, automation, and operations. He previously served as Deloitte’s Managing Director & Chief Commercial Officer, transforming its Cloud Operate and Engineering business into a multibillion-dollar operation. He held senior roles at IBM, Velocity, co-founded Corio, and was CIO for two Fortune 100 manufacturers.
Previously at
Technology Experience
35+ Years

Delivery Manager
Rachael serves as a Delivery Manager at Toptal with a focus on leading diverse global teams in developing innovative solutions for our clients. She works across multiple disciplines, including technology, marketing, and management consulting. Rachael specializes in managing people and client relationships, process optimization, and driving teams toward optimal business outcomes.
Previously Managed Client
Experience
9+ Years

18+ Years
of Experience
Enzo is an engineer with more than 18 years of experience in QA/QA automation, working with the latest technologies and highest industry-quality standards to automate web UIs, REST APIs, and back-end services. He’s comfortable in startups as well as large companies, either as the only person in a QA role or a member of any size team. He also has experience defining processes, procedures, and tools to achieve the best quality.
Previously at

19+ Years
of Experience
Chieko is a senior QA engineer with 19 years of experience testing software in various industries such as apparel, fintech, and security. She has led teams in the implementation of software QA, test automation, and manual QA, as well as managed QA test plans to ensure that the end product is robust and high quality. Chieko is passionate about achieving quality by following good development and QA processes, and is wholeheartedly dedicated to ensuring that software meets the customers’ needs.
Previously at

12+ Years
of Experience
Dimitris is a QA automation architect focused on de-risking clients’ technical investments by upskilling teams and automating processes. He particularly enjoyed his four years at Novoda, the mobile agency, where he worked on challenging projects with no existing testing practices. Dimitris has set up clients’ QA teams from scratch and has developed his leadership skills.
Previously at

11+ Years
of Experience
Natalija is a software tester experienced in manual testing, mainly working on e-commerce and telecommunications projects. She was the leading QA specialist in a mobility transformation project involving customer data migration from legacy systems for a major telecom provider in Europe. Natalija’s expertise includes API automation testing, as she has completed several projects for an international energy holding company.
Previously at

11+ Years
of Experience
Dolly is a QA engineer with more than 11 years of experience in a range of industries, including real estate, travel, finance, and aviation. She has created multiple testing frameworks from the ground up using Selenium, TestNG, Cucumber, and Cypress, and has automated QA processes. Dolly manages test execution not only from the technical point of view but also from the customer’s, as she believes product usability is as vital as functionality.
Previously at

20+ Years
of Experience
Seema brings more than 20 years of software testing and quality assurance expertise to the table. She has substantial experience with manual testing and the test automation of web and mobile applications. Seema is a certified Scrum master, an IBM- certified Db2 professional, and an AWS-certified solutions architect comfortable with Agile and Waterfall approaches. Her in-depth knowledge of API and performance testing delivers excellent results.
Previously at










20+ Years
of Experience
Tony is a seasoned Agile professional who started as a self-taught programmer in the US Navy. He had served in every role of the SDLC before bringing his software engineering passion to Agile project management. His technical skills, combined with his managerial, communication, and analytic abilities, have served him well while successfully guiding teams. Tony uses these talents and his development experience to lead by example while helping organizations create greater value through software.
Previously at

17+ Years
of Experience
Christina is a senior QA engineer with expertise in test automation, test management, and manual testing for web and mobile applications. She has created test automation frameworks from the ground up using Selenium WebDriver in several projects, as well as automating API testing using REST Assured and Postman. With experience in both private and public sectors, Christina has worked with large, medium-size, and small startup companies.
Previously at

10+ Years
of Experience
Since 2014, Adrian has been developing using Java and a variety of testing frameworks such as JUnit, TestNG, Selenium, Cucumber, and REST Assured, along with tools like JMeter, SoapUI, and IntelliJ IDEA. He has worked with numerous teams and projects, which enables him to communicate easily and adapt seamlessly to new work environments. Adrian is passionate about test automation and has joined Toptal to broaden the reach of his expertise through global freelance projects.
Previously at

6+ Years
of Experience
Alejandro is a QA engineer with more than six years of experience in manual and automated testing for web and mobile applications within the banking and fintech sectors. He has experience designing, building, executing, and maintaining automated tests, including API testing and integration with the CI/CD methodology. Alejandro is self-sufficient and has taught himself various stacks, making him efficient in implementing technologies, tools, or techniques needed for the team or the client.
Previously at

11+ Years
of Experience
Natalya is a QA engineer experienced in testing web, hybrid, native mobile, and desktop applications. She has worked in various business domains, including fintech, finance, medicine, and telecommunications, testing front-end and back-end parts and different console applications.
Previously at

13+ Years
of Experience
Sargis is a QA engineer and currently a director of quality engineering with 13+ years of experience and deep expertise in test automation. He has worked with companies specializing in mobile, web, SaaS, and enterprise applications. Sargis has been an excellent asset to distributed international teams, is an advocate for the Agile methodology, and is a skilled practitioner of Agile, Scrum, and Kanban.
Previously at

18+ Years
of Experience
Claudio has more than 18 years of software development experience and a cybersecurity degree. He has worked in back-end, front-end, and full-stack development; DevSecOps; application security; penetration testing; and solutions architecture.
Previously at

11+ Years
of Experience
Satish is an adaptable and technically strong professional with a customer business value-added mindset and several years of experience in quality assurance for companies like Deloitte and Consensys. While Satish specializes in Selenium, Cypress, and API testing, he’s also comfortable building automation test frameworks and recently led the technical portfolio for an automation project.
Previously at

12+ Years
of Experience
Harish is a QA professional with more than 12 years in different QA roles (test lead, Scrum master), including in test automation, test management, test analysis, and manual testing. He specializes in different testing levels (unit/API/E2E) and testing types (functional, performance, security) for mobility, web, APIs, and legacy mainframe applications. With a solution-oriented mindset and a customer-centric focus, Harish is a team player who enjoys working with people following the Lean and Agile approaches.
Previously at
Looking for guidance about the perfect manual software testing service for your needs?
Looking for guidance about the perfect manual software testing service for your needs?
UNRIVALED EXPERTISE
Having previously worked with these leading global companies, our talent brings valuable insights and expertise to deliver world-class outcomes.
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Challenge: Software defects can cause critical errors and widespread user dissatisfaction for tech brands. A big data software provider was facing a six-month backlog of these defects, reported by its top clients. Its engineers were overwhelmed, trying to simultaneously address incoming reports and product development—reducing productivity and fueling staff turnover.
Solution: In only six weeks, Toptal’s team cleared the six-month backlog while simultaneously processing day-to-day tickets. In a 14-month span, they resolved 266 top-priority product defects and managed countless daily tasks.
Outcome: Toptal’s solution enabled the software provider to improve the end-user experience across all products. Toptal’s experts are now training a dedicated in-house team to transition to a scalable ticket processing system.
Senior Software Delivery Manager
Big Data Software Provider
Newsweek and Statista’s rankings were based on an independent survey of more than 2,400 decision-makers at Fortune 500s.
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Highest ranked across all industries
Other Professional Services
Methodology for the Rankings
How likely the respondent is to recommend the selected company to others.
Measures the convenience of interaction with the company and efficiency of processes.
Measures the company’s cost-effectiveness and quality relative to price.
Measures whether the company consistently meets or exceeds expectations in quality and timeliness of deliverables.
Measures the company’s ability to consistently fulfill commitments and maintain customer trust.
OUR THOUGHT LEADERSHIP
Read the latest articles and resources to keep you current on emerging trends in software testing and usability.

User testing is easy and inexpensive and will substantially improve product designs. The insights gained from observing how people use a digital product are well worth it, as outlined in this six-step process.
Read MoreMANUAL SOFTWARE TESTING RELATED OFFERINGS
Pair Toptal’s Manual Software Testing with related competencies to effectively tackle your business challenges.
Looking for guidance about the perfect manual software testing service for your needs?
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