MANUAL TESTING SERVICES
Build custom manual testing solutions with experts trusted by 1500+ companies.
Need a partner who can deliver comprehensive manual testing? Our QA engineers provide testing services for some of the world's top companies. Work with senior testers who've validated software quality across complex consumer applications and enterprise systems.
Sr. Manual QA Engineer
Luis M.
11 years of experience
Previous Client
Sr. Exploratory Test Engineer
Carlos R.
13 years of experience
Previous Client
Sr. Usability Test Engineer
Mariana S.
10 years of experience
Previous Client
Sr. Mobile Test Engineer
Diego F.
9 years of experience
Previous Client
Sr. Test Manager
Andrés V.
15 years of experience
Previous Client
MANUAL SOFTWARE TESTING SERVICES
No matter what you're building, we can help.
Our testers have validated Android TV for Google, e-commerce platforms for Groupon, and hundreds of complex software solutions for leading global brands. Bring in our experts to identify critical defects and edge cases before they reach production, protecting revenue and user trust.
Functional Testing
Automated tests miss edge cases, user workflows, and logic errors that only human testers catch. We validate that each feature behaves according to specifications through systematic test case execution covering normal operations and error handling.
Our testers break down specifications into executable scenarios, then validate input/output behavior manually to catch issues automation overlooks. Each defect is documented with reproduction steps and environment details. We validate system interactions and business logic across all critical paths. You get thorough functional coverage that catches the issues automated tests miss.
Exploratory Testing
Scripted test cases follow predictable paths that miss unexpected defects and usability problems. We explore applications without predetermined scripts, using domain expertise and intuition to uncover issues in real-world usage scenarios.
Our testers navigate applications freely, test feature combinations, probe edge cases, and document findings in real time. We identify usability issues, unclear error messages, and workflow problems that impact user experience. You get insights into how actual users might break or misuse your application.
Usability Testing
Applications with poor usability frustrate users and reduce adoption regardless of functionality. We evaluate user interfaces, navigation patterns, and interaction design to identify friction points that impact user satisfaction.
Our testers conduct task-based testing with representative users, perform heuristic evaluations against usability principles, and analyze user feedback. We identify confusing workflows, unclear labeling, and accessibility barriers. You get actionable recommendations that improve user experience and reduce support burden.
User Acceptance Testing
Software that passes technical testing can still fail to meet business requirements or user expectations. We validate that applications satisfy stakeholder needs through systematic UAT with end users before production deployment.
Our testers collaborate with stakeholders to define acceptance criteria, create realistic test scenarios, facilitate testing sessions with business users, and document feedback. We verify functionality, usability, and performance meet expectations. So you get validation that software delivers business value before go-live.
Compatibility Testing
Applications must work consistently across various browsers and operating systems. We test on real devices and different hardware platforms to identify issues specific to different environments.
Our testers validate core functionality across Chrome, Firefox, Safari, and Edge on desktop platforms. Mobile testing covers iOS and Android devices with varying screen sizes and OS versions. We also use BrowserStack for cloud-based testing. You get confidence that users will have consistent experiences regardless of how they access your application.
Localization Testing
Global applications require linguistic accuracy, cultural appropriateness, and proper formatting for different locales. We validate translations and cultural elements to ensure seamless experiences across markets.
Testing covers both linguistic accuracy and technical formatting. Our testers verify translations in context, catching awkward phrasing that literal translation misses. Cultural appropriateness of imagery and messaging is assessed for target markets. We use tools like Passolo and Crowdin for workflow integration. You get applications that resonate with users in target markets without embarrassing errors.
Mobile Application Testing
Mobile apps face unique challenges with device fragmentation and platform-specific behaviors. We test on real devices across iOS and Android to validate functionality and performance. We select a range of devices representing your actual user base, not just flagship models.
Our testers validate behavior under degraded network conditions and offline modes. Battery consumption is monitored during extended sessions. You get mobile applications that work reliably across the device ecosystem your users actually own.
Regression Testing
New features and bug fixes can break existing functionality. We execute comprehensive regression test suites after each release to verify that changes haven't introduced unintended side effects or broken previously working features.
Our testers maintain regression test suites covering critical user paths, execute tests after code changes, prioritize testing based on risk and impact, and track defects introduced by changes. We validate that core functionality remains stable. So you get the confidence that updates improve software without breaking what already works.
Manual Testing case studies
Hundreds of manual testing projects delivered.
From simple web apps to complex enterprise systems, we have the experience to deliver manual testing that ensures software quality. It's why 500+ clients choose us as their manual testing company.
- E-COMMERCE & RETAIL
Performed Comprehensive Manual and Automated QA for Groupon's Platform
Groupon needed QA engineers with extensive Ruby on Rails knowledge to maintain site reliability, security, and performance. We provided QA specialists who executed both manual tests and test automation over a 2-year engagement. The team identified and removed bugs through comprehensive QA testing. Our work helped Groupon maintain brand loyalty and business partner trust across their marketplace serving 500+ cities worldwide.
- Ruby
- Selenium
- MEDIA & ENTERTAINMENT
Delivered Manual Testing to Prevent Data Leaks for Thomson Reuters
Thomson Reuters needed comprehensive QA to ensure seamless functionality of software solutions in tax, fraud, legal, and compliance domains. We provided QA analysts focused on security protocols and risk avoidance over a 3-year engagement. The team executed both manual tests and test automation to prevent data leaks and targeted attacks. Our work reduced bugs and delivered an engaging user experience for their 1 billion daily readers.
- Java
- SAP
- .NET
- HOME SERVICES
Conducted Manual Testing That Helped Improve UX and Increase Revenue by 3300%.
A home services provider needed to acquire more users and improve their customer satisfaction score for their platform. We provided QA engineers, iOS and Android developers, and Scrum Masters over a 2-year engagement. The team conducted manual testing to improve overall user experience while adding payment integrations and dynamic interview features. As a result, weekly transactions grew from $60K to over $2 million USD.
- JavaScript
- Java
- PostgreSQL
- Swift
- Appium
TECH
Google trusted us to deliver standalone and integrated testing for Android TV.
- 4-Year Engagement
- 20 QA Engineers
When launching Android TV, Google needed reliable QA specialists to deliver standalone and integrated testing services across multiple devices including Nvidia Shield and Sony TV products. They required testers familiar with Android ready to tackle real-time user feedback. We provided senior QA engineers who performed extensive manual testing while also converting manual processes to automation where appropriate.
Performed manual testing for Google Assistant App on Android TV devices
Ensured interface met Google's user expectations during rollout
Identified bugs in Android Google Search App and Google Search Appliance
Get expert help for your Manual Testing project.
“Their engineers perform at very high standards. We've had a strong relationship for almost 7 years.”
OUR MANUAL TESTING TEAMS
Meet the manual testing experts behind our best work.
Behind every successful manual testing solution is a highly specialized team. That's why we have experts for every stage of manual testing, from test planning and test case design to exploratory testing, defect tracking, and quality validation.
- TestRail
- Jira
- BrowserStack
- ISTQB Certified Tester Foundation Level
- ISTQB Advanced Level Test Analyst
- TestRail
- Jira
- Rapid Reporter
- ISTQB Agile Tester Certification
- ISTQB Advanced Level Test Analyst
- UserTesting
- Hotjar
- Maze
- Certified Usability Analyst (CUA)
- Nielsen Norman Group UX Certification
- Xcode
- Android Studio
- BrowserStack
- ISTQB Mobile Application Testing Certification
- AWS Certified Cloud Practitioner
- TestRail
- Zephyr
- Jira
- ISTQB Advanced Level Test Manager
- Certified Scrum Master (CSM)
Onboard a manual testing team in weeks, not months.
About BairesDev
Why work with BairesDev? We’re trusted by the world’s top tech teams.
BairesDev is a US-based company powered by LATAM dev teams. Since 2009, we’ve built software for companies of all sizes—from scrappy startups to Fortune 500 giants. In fact, we’re one of the fastest-growing software development companies in the world. If you’re looking for onshore quality with nearshore benefits, we’re the partner for you.
1250+
Projects
Delivered
4000+
Developers
On Staff
96%
Client Retention
Rate
500+
Active
Clients
How we work
Here's what makes us easy to work with and hard to replace:
From code quality to compliance, we’ve optimized every part of how we work to support high-performing engineering teams. For you, that means clearer communication and smoother delivery. Plus, get peace of mind from having a development partner you can depend on.
Work with our manual testing experts.
- Vetted Senior TalentWe hire the top 1% of over two million applicants, so you only work with the best.We give you engineers who’ve already proven they can deliver. Our rigorous evaluation process includes technical tests, English assessments, soft skill screening, problem-solving simulations, and more. Out of over 2 million applicants who apply yearly, fewer than 1% get the chance to join our team. This is how we ensure you get highly qualified developers who are experts in their fields.
- Timezone AlignedWe work your team’s hours, which creates faster feedback loops and fewer blockers.Our nearshore software engineers share your workday, answering Slack messages, joining daily stand-ups, and presenting demos in real time. Project management is streamlined, questions are answered quickly, blockers are resolved as they come up, and simple code reviews take minutes, not days.
- Proficient in EnglishOur engineers have strong English skills, so communication and documentation are clear.Our engineers have 8+ years of experience collaborating with US teams. They excel at articulating complex technical concepts to diverse stakeholders, producing meticulous documentation, and driving technical discussions. This eliminates the ambiguity common with global teams.
- Full-stack CapabilitiesWith expertise in 100+ technologies, we have every specialist your project requires.We cover architecture, development, testing, DevOps, and everything in between—reducing hand-offs and creating better architecture decisions for a smoother path from concept to production.
- Scalable TeamsOur bench strength lets you scale engineering teams to meet new demands in weeks.With 4,000+ engineers on staff and thousands more in our pipeline, we can spin up pods or scale multiple teams across your company in days—so you hit aggressive timelines without bottlenecks.
- Standard MSAs & SOWSWe’re easy to onboard because we work the way your legal team expects us to.Because we’re based in the US, we follow the same legal standards your team already trusts—using MSAs, SOWs, and documentation that fit your procurement process.
- NDAs & IP ProtectionWe take data and IP seriously, with full protection baked into every engagement.Every engagement begins with a mutual NDA and clear IP ownership terms. Our secure workflows and confidentiality protocols also protect existing codebases and proprietary data.
- Enterprise-grade SecurityOur devs follow security protocols that meet even the strictest enterprise standards.Our engineers work only within the systems they need, using strict access control, audit-friendly workflows, secure repository storage, and more—bringing enterprise-grade protection to every engagement.
- Managed DeliveryWe actively track our devs’ work to make sure they consistently meet expectations.Delivery managers monitor progress, resolve blockers, and report regularly, so you never have to chase updates or second-guess performance.
Work with our manual testing experts.
Flexible engagement models
Need manual testing expertise?
Plug us in where you need us most.
We customize every engagement to fit your workflow, priorities, and delivery needs.
- Need a couple of extra software engineers on your team?
Staff Augmentation
Get senior, production-ready developers who integrate directly into your internal team. They work your hours, join your standups, and follow your workflows—just like any full-time engineer.
- Need a few teams to deliver several projects in simultaneously?
Dedicated teams
Spin up focused, delivery-ready pods to handle full builds or workstreams. Together we align on priorities. Then our tech PMs lead the team and drive delivery to maintain velocity and consistency.
- Want to offload everything to us, from start to finish?
Software outsourcing
Hand off the full project lifecycle, from planning to deployment. You define the outcomes. We take full ownership of the execution and keep you looped in every step of the way.
Kick off manual testing projects in 2-4 weeks.
We have reps across the US.
Speak with a client engagement specialist near you.
- Discuss solutions and decide team structure.
Tell us more about your needs. We'll discuss the best-fit solutions and team structure based on your success metrics, timeline, budget, and required skill sets.
- Onboard your team and get to work.
With project specifications finalized, we select your team. We're able to onboard developers and assemble dedicated teams in 2-4 weeks after signature.
- We track performance on an ongoing basis.
We continually monitor our teams' work to make sure they're meeting your quantity and quality of work standards at all times.
MANUAL TESTING SOLUTIONS
Build with manual testers who have experience in your industry.
We've delivered projects across 130+ industry sectors. You won't have to spend weeks getting us up to speed. Our testers come in with a clear understanding of your industry's quality requirements, compliance standards, and user expectations.
MANUAL TESTING CAPABILITIES
We cover testing (and everything around it).
As a top software testing company, we use proven tools and methodologies built for comprehensive quality validation. Our expertise spans 100+ technologies, so we're equipped to support your full roadmap: manual testing and beyond.
Test Management & Documentation
We organize test cases, track execution, and document results in great detail. Our engineers use platforms that provide visibility into testing progress, defect trends, and quality metrics.TestRailZephyrqTestTestLinkPractiTestHP ALMAzure Test PlansTestCollabDefect Tracking & Bug Reporting
Our engineers document defects with detailed reproduction steps, screenshots, and logs. We use industry-standard tools that integrate with development workflows for efficient bug resolution.JiraBugzillaMantisBTRedmineYouTrackAzure DevOpsGitHub IssuesClickUpCross-Browser & Device Testing
Our testers validate functionality across different browsers, hardware platforms, and operating systems using cloud-based platforms and physical devices for real-world testing conditions.BrowserStackSauce LabsCrossBrowserTestingLambdaTestKobitonPerfectoHeadSpinMobile Testing Tools
We test mobile applications on real iOS and Android devices using platform-specific tools and cloud testing services. Our engineers painstakingly test various OS versions and device configurations, emulating various scenarios.XcodeAndroid StudioTestFlightFirebase Test LabAWS Device FarmPerfectoUsability & User Experience Testing
Our engineers evaluate user interfaces and workflows using robust tools that capture user interactions, heatmaps, and feedback. We focus on high-impact areas leading to actionable UX improvements.UserTestingHotjarMazeOptimal WorkshopUsabilityHubLookbackLocalization Testing
We validate translations, cultural appropriateness, and locale-specific formatting. We select proven tools that support multi-language testing and internationalization verification.PassoloMemoQCrowdinLocalizePhraseTransifexScreen Recording & Documentation
We document testing sessions and defects using screen recording and annotation tools. Our process provides clear visual evidence and documentation for developers and stakeholders.LoomSnagitCloudAppMarkup HeroMonosnapScreencastifyAccessibility Testing Tools
We validate WCAG compliance and assistive technology compatibility using tools that identify barriers for users with disabilities. Testing covers screen reader support, keyboard navigation, color contrast, and semantic markup.axe DevToolsWAVENVDAVoiceOverAccessibility InsightsColor Contrast Analyzer
MANUAL TESTING PROCESS
How we deliver manual testing services that drive business value:
We've refined our manual testing services across hundreds of projects. Whether you need end-to-end execution or support for an internal team, our QA specialists are ready to move projects forward.
Test Planning & Strategy
We define testing scope, identify critical features, establish acceptance criteria, and determine test environments to ensure testing aligns with business objectives and release timelines.
Test Case Design
We create test cases covering functional requirements, edge cases, and error conditions. Each includes steps, expected results, and test data organized by priority and risk.
Environment Setup
We configure test environments replicating production conditions including browsers, devices, and network configurations. Validation confirms test data and integrations are ready.
Test Execution
We execute test cases systematically, documenting actual results against expected outcomes. Defects include reproduction steps, screenshots, logs, and severity assessment.
Exploratory Testing
We conduct time-boxed sessions where testers navigate freely using domain knowledge to uncover usability issues and edge cases that scripted tests miss.
Defect Tracking
We document defects with complete reproduction steps, screenshots, and environment details. We collaborate with developers to clarify issues and verify fixes.
Regression Testing
We execute regression suites after code changes to verify bug fixes and new features haven't broken existing functionality across critical user paths.
Compatibility Validation
We test across target browsers, devices, and operating systems using cloud platforms and physical devices to validate layout and functional consistency.
UAT & Usability Validation
We evaluate interfaces for clarity and ease of use, then facilitate UAT sessions with business users to validate functionality meets requirements before release.
Reporting & Sign-Off
We deliver test reports covering execution status, defect metrics, and release readiness. Stakeholders receive clear quality assessment for go-live decisions.
Client testimonials
Get QA you can stand behind.
Our work holds up in reviews, in production, and in front of the board.
Global companies have trusted us to deliver manual testing services for over a decade.
Excellence.
Our minimum bar for client delivery.
Over 130 awards, accolades, and achievements showcase our quality and commitment to client success.
- 1,250+projects
delivered - 130+industry
sectors
America's Fastest-Growing Companies 2025 by Financial Times Top 100 U.S. IT Innovators 2025 by CIO100 Awards Nearshore North America Top Software Developers 2025 by Clutch Top 100 Global Outsourcing Providers 2024 by IAOP Global Outsourcing 100
What tech leaders ask about our manual testing services:
How quickly can you staff a manual testing team?
We typically onboard manual testing teams within 2–4 weeks. Our 4,000+ engineer bench includes manual testers with functional testing, exploratory testing, usability validation, and mobile testing experience, allowing us to assemble the right team quickly based on your specific needs.
What level of experience do your testers bring?
We screen over 2 million applicants annually and hire less than 1%. We only select experienced testers with 8–10+ years of relevant experience. Our manual testers have validated software for companies like Google, identified critical defects in production systems, and executed comprehensive test suites across web, mobile, and enterprise applications. They understand test case design, defect analysis, exploratory testing techniques, and how to balance test coverage with project timelines.
Will your team work in our time zone and integrate with our processes?
Yes. Our nearshore manual testing teams work US business hours, communicate in English, and participate fully in your standups, sprint planning, and reviews. We adopt your tools (Jira, TestRail, Slack, GitHub), follow your defect reporting standards and severity classifications, and operate as an extension of your team from day one.
Can you work with our existing test cases and quality processes?
Absolutely. Our testers have worked with mature QA organizations, startups building quality processes from scratch, and everything in between. We audit existing test documentation, identify coverage gaps, and enhance test suites while maintaining your established standards. Whether you need test execution support, test case creation, or process improvement, we adapt to your current state.
Do you have experience testing in regulated industries?
Yes. We're ISO 27001 certified and have delivered manual testing services for healthcare, finance, government, and other regulated industries. Our testing approaches support HIPAA compliance validation, SOX-compliant financial application testing, accessibility compliance, and security validation. We've delivered projects meeting strict regulatory requirements without compromising testing thoroughness.
How do you balance manual testing with test automation?
We take a pragmatic approach: automate what's repetitive and stable, test manually where human judgment adds value. Our testers identify automation opportunities during manual execution, focusing automation on regression suites while reserving manual testing for exploratory testing, usability validation, and new feature verification. We work with your automation engineers to convert stable manual tests into automated scripts.
Can you test across multiple devices, browsers, and operating systems?
Yes. We maintain physical device labs and use cloud testing platforms like BrowserStack to validate functionality across Chrome, Firefox, Safari, Edge, iOS, Android, Windows, macOS, and Linux. Our testing covers different browser versions, device models, screen sizes, and operating system versions to ensure consistent user experiences across your target platforms.
How do you maintain team stability over long engagements?
We're structured for long-term partnerships. Most testers stay on manual testing projects for 2+ years, and our 96% client retention rate shows organizations continue working with us year after year. When team adjustments are needed, our bench depth allows us to add specialists or backfill roles quickly while maintaining project momentum through documentation and structured handoffs.
What's your approach to exploratory testing versus scripted testing?
We use both strategically. Scripted testing provides repeatable validation of known requirements and regression coverage. Exploratory testing uncovers unexpected issues, usability problems, and edge cases that scripted tests miss. We typically allocate 60-70% of effort to scripted testing for core functionality and 30-40% to exploratory sessions focused on high-risk areas, new features, and integration points.
Are contracts and billing handled in the US?
Yes. We operate from US headquarters under US law and jurisdiction. All contracts, billing, and procurement flow through domestic channels, eliminating international complications. We also provide the necessary hardware for our specialists, simplifying vendor management for your team.
Useful Manual Testing resources
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