QA and Software Testing Services Beyond The Basics

10+ years of experience, low defect leakage rate, and a QA strategy tailored to your product — we don’t go with a one-size-fits-all approach.
  • badge.name
    Top Software Development Company, 2025
  • badge.name
    Top B2B Company Globally, Fall 2024
  • badge.name
    Listed Among Top 1000 Companies Globally

Ignacio Doncel
Ignacio Doncelusa

Founder at WishYoo

We tested the system with 5K users, stress-tested mobile responses, and saw no lag.

90

countries worldwide user base

5+

years together

Dan Weber
Dan Weberuk

President

I’m very pleased with the quality of the work we’ve done together.

Guthy-Renker Trusted

$1B infomercial retailer partner

Kristopher Priemer
Kristopher Priemerusa

Entrepreneur, Business Operations Consultant at Priemer Consulting

If our ideas aren’t polished enough, they’ll come up with viable solutions.

7

businesses founded and co-owned

5

projects completed together since 2017

01 | 03

Fortune #40 Global Health Leader

1886-founded | 131K employees | $16B in R&D

NYSE: EB

850k creators | 300M tickets sold in 2023

8th GPS App in the US

3M+ in 2023 | 10M+ Google Play downloads

Cultural Exchange Led by 2K+ Team

Est. 1980 | 500K+ Alumni | 100+ Countries

$12M Revenue Tech Co.

MBE Certified by NMSDC

Trusted Logistics Co. Since 1979

ISO9001 Certified Systems Integrator

3rd in Retail Inc. 5000

$6M+ raised | #1 ranked company in CT

UCSF-Trusted Health App

with 50K+ users in 60+ countries

Google-Funded Green Tech

144K Ha Monitored | Featured by Reuters

Telecom Experts Est. 2005

Google, Proximus & Orange partners

NASA-Trusted Workflows Builder

Est. in 2007 | PCI, GDPR & HIPAA certified

Top Swiss Agency

Awarded #1 Swiss App in 2025

#2 SMM Agency in Australia

Serves 1k+ Australian B2B across 20+ domains

Google Cloud Partner

Trusted by Fortune 5 UHG

F&B Startup with 25K+ Guests/Y

4.5 on TripAdvisor | 600+ Dining Partners

Fortune #40 Global Health Leader

1886-founded | 131K employees | $16B in R&D

NYSE: EB

850k creators | 300M tickets sold in 2023

8th GPS App in the US

3M+ in 2023 | 10M+ Google Play downloads

Cultural Exchange Led by 2K+ Team

Est. 1980 | 500K+ Alumni | 100+ Countries

$12M Revenue Tech Co.

MBE Certified by NMSDC

Trusted Logistics Co. Since 1979

ISO9001 Certified Systems Integrator

F&B Startup with 25K+ Guests/Y

4.5 on TripAdvisor | 600+ Dining Partners

Google Cloud Partner

Trusted by Fortune 5 UHG

#2 SMM Agency in Australia

Serves 1k+ Australian B2B across 20+ domains

Top Swiss Agency

Awarded #1 Swiss App in 2025

NASA-Trusted Workflows Builder

Est. in 2007 | PCI, GDPR & HIPAA certified

Telecom Experts Est. 2005

Google, Proximus & Orange partners

Google-Funded Green Tech

144K Ha Monitored | Featured by Reuters

UCSF-Trusted Health App

with 50K+ users in 60+ countries

3rd in Retail Inc. 5000

$6M+ raised | #1 ranked company in CT

Trusted Logistics Co. Since 1979

ISO9001 Certified Systems Integrator

$12M Revenue Tech Co.

MBE Certified by NMSDC

Cultural Exchange Led by 2K+ Team

Est. 1980 | 500K+ Alumni | 100+ Countries

8th GPS App in the US

3M+ in 2023 | 10M+ Google Play downloads

NYSE: EB

850k creators | 300M tickets sold in 2023

Fortune #40 Global Health Leader

1886-founded | 131K employees | $16B in R&D

F&B Startup with 25K+ Guests/Y

4.5 on TripAdvisor | 600+ Dining Partners

Google Cloud Partner

Trusted by Fortune 5 UHG

#2 SMM Agency in Australia

Serves 1k+ Australian B2B across 20+ domains

Top Swiss Agency

Awarded #1 Swiss App in 2025

NASA-Trusted Workflows Builder

Est. in 2007 | PCI, GDPR & HIPAA certified

Telecom Experts Est. 2005

Google, Proximus & Orange partners

Testing types we provide

Mobile apps we developed

01 | 04
HealthcareSaaSDedicated Development TeamData Visualization
usa
Headsup

Health tracking platform

Revamped UI/UX for web and mobile, improving the experience for 50K+ global users. Set up and maintained end-to-end QA process incl. hiring and management.

Read the case study

4+

years of ongoing collaboration

Series A

funding raised in 2024

Headsup
IT consultingMarketplaceProduct DevelopmentProject Discovery
usa
Workerbee

A digital marketplace for software consultants

We built a platform from scratch that helped our client attract 130+ corporate customers and over 1,000 software consultants in a specialized niche.

Read the case study

8

experts involved

$1.5M

app budget so far

5.0

on Clutch

Workerbee
Outdoor RecreationMobile Development
usa
Lilypad Chat

Location-based chat app

Partnered with a pioneering GPS-based adventure brand with 3M+ users to create a location-based chat app, enhancing real-time interactions and engagement.

Read the case study

4.5

on Clutch

3+

years of collaboration

4

experts involved

Lilypad Chat
Real EstateSaaSProject Discovery
usa
Smartskip

Skip tracing platform

Led discovery and developed a skip tracing SaaS app for a real estate company, securing the first paying users in month 1, with consistent daily growth.

Case in progress

7

experts involved

7

months to market

Smartskip
01 | 04

Testimonials

Ignacio Doncel
Ignacio Doncelusa

Founder at WishYoo

We needed to enhance our UX by redesigning our platform to make it more engaging. Clockwise Software restructured the backend to ensure intuitive functionality and delivered an eye-popping design. They were professional, always available, and effective communicators, quickly learning our tools. The system passed stress tests with 5,000 users and showed no lag, exceeding our expectations.

Dan Weber
Dan Weberuk

President

I own a company that builds software for roll-off dumpsters and needed a larger development team. Clockwise has been instrumental in developing four mobile apps, providing QA testing, automated testing, and implementations using React, Redux, and Node.js. Two apps achieved 100% code and branch coverage, and another reached 99.4%. I’m very pleased with the work we've done together.

Testing processes

Here are the steps we go through together:

1. Building test strategy

Before a single test runs, we map out a strategy that makes sense for the product. We define testing objectives and scope, set priorities, and select the right mix of testing types. Whether it's ongoing functional testing or full-scale performance and security checks, we match testing efforts to the product’s complexity and business needs so that you receive the most effective and optimal QA services.

2. Test documentation

From test cases and scripts to detailed checklists and a mind map, we create a structured QA documentation that keeps the process transparent, repeatable, adaptive, and aligned with the project’s needs. This means that we provide reusable and flexible test deliverables at the subsequent project iterations, and there are no ‘oops, we forgot to test that’ moments, just a solid testing process that doesn’t leave critical functionality overlooked.

3. Test environment setup

We configure the proper setup, matching real-world conditions — text sandboxes and environments — so tests reflect how users will actually experience the product. Whether setting up automation frameworks or simulating high-traffic loads, we ensure the stage is set for reliable, actionable results.

4. Test execution

Here, we put everything to the test — literally. We run an optimal combination of testing types to catch anything that doesn’t match requirements and could break, glitch, or frustrate users. From manually checking edge cases to running automated scripts at scale, we make sure the product holds up under real conditions. If there’s an issue, we spot it before users do.

5. Defect management

Bugs happen, but what matters is how you handle them. We log every issue with detailed bug reports, choosing the appropriate severity level and assigning issues to the responsible team members. We don’t give vague "it’s broken" feedback — instead, we describe clear steps to reproduce and provide screenshots, videos, or logs along with technical details, so the issue is clear and can be fixed without endless clarifications.

6. Re-testing & regression

Fixing a bug is excellent. Making sure it didn’t break something else? Even better. We rerun test cases to confirm that issues are resolved and conduct regression testing to ensure changes didn’t affect existing functionality. This way, we avoid unexpected regression issues moments right before launch.

7. Test reporting & evaluation

At the end of each cycle, we don’t just dump a pile of bug reports on your desk — we provide a test report with structured insights. You get a clear view of test coverage, passed-to-failed tests ratio, defect trends, and overall product quality, so you always know the testing progress and the overall quality level.

Approaching QA right

Test strategy

Test suite

Traceability matrix

Bug reports

Test report

A game plan for solid testing

A strong test plan means no scrambling, no overlooked features, and no testing chaos. We map out what gets tested, how, when, and by whom, aligning everything with project goals. From functional checks to performance stress tests, our software testing services will include the right mix to catch as many bugs as possible.

solid testing plan

What sets us apart?

  • A personalized QA strategy for zero overlooked details and zero unnecessary steps.
  • Pass/fail criteria are defined upfront, so testing is clear and focused. 
  • CI/CD-friendly QA for catching issues before they hit production.
  • CPI and SPI variances stay <10%, keeping projects on track and within budget. 

200+

projects involved QA

Top-1%

QA engineers hired

94.12%

satisfaction rate

10+

years of experience

Let’s talk

We’ll ensure your product holds up where it matters: across devices, under heavy load, and with no security gaps. Talk to us about your QA needs.

  • Response within 24 business hours
  • Reliable estimate within 10 business days 
  • QA experts involved
Serhii

Head of Client Relations

Eugene

Account Executive

Serhii photoEugene photo

QA deliverables

Starting lean

Small package

This is for projects that need essential testing insights, tracking, and issue resolution.

Features

All needed testing, plus:

  • Test suite [complete list of test cases]
  • Bug reports [detailed defect info]

Preparing for growth

Medium package

Thorough testing insights to keep your project on track.

Features

All needed testing, plus:

  • Test strategy [QA scope & approach]
  • Test suite [complete list of test cases]
  • Bug reports [detailed defect info]
  • Test report (once per sprint)

Opting for premium quality

Large package

In-depth view of QA activities for complex projects, ensuring detailed tracking and frequent updates.

Features

All needed testing, plus:

  • Traceability matrix [test coverage map]
  • Test strategy [QA scope & approach]
  • Test suite [complete list of test cases]
  • Bug reports [detailed defect info]
  • Test report (once a week/on demand)

Packages vary, but quality doesn’t

Packages vary by docs, not quality. We adjust deliverables to fit your strategy and budget, but our testing standards stay equally high.

You can pick the right level of detail and coverage for your specific requirements.

Clearing up your concerns

How do you ensure a bug-free release?

Every project starts with a tailored test strategy that matches your product’s goals and industry standards. From there, we create high-coverage test cases that track directly back to your requirements, so nothing gets missed. 

We’re big on process, too. That means requirement reviews, dev-to-QA handoffs, regular bug triages, and feature demos are all part of the flow. Repetitive checks? Automated and wired into CI/CD to catch issues quickly and early.

What tools do you use for quality assurance?

We use Jira for issue tracking, while TestRail helps us efficiently manage and execute test cases. Postman and Swagger handle API testing, ensuring seamless communication between services. For performance and load testing, we rely on JMeter and Artillery. Regarding front-end debugging and optimization, Chrome DevTools is our go-to, and for testing client-server request flow, we use Charles Proxy.

Can you handle both manual and automated testing?

Absolutely. Some cases need human intuition; others need automation speed — we balance both. Manual testing helps us catch usability issues and edge cases that scripts might miss. We can implement automated tests for large-scale projects to cover repetitive scenarios efficiently. All in all, we tailor software testing services to your product’s needs.

Do you offer security testing as part of your QA services?

Yes, our software QA services include security testing. We check if developed functionality meets security requirements and run vulnerability assessments to catch risks before they become threats. Whether it’s testing authentication flows, encrypting sensitive data, or stress-testing APIs, we ensure your product isn’t just functional and secure against real-world attacks.

How do you manage and mitigate risks?

We tackle risks in testing before they become problems.

Unexpected scope expansions? We lock in requirements early with clear documentation, demos, and action plans for any misalignments. Defects piling up? We fine-tune development practices — unit tests, code reviews, and functional testing — to prevent issues before they spread. Tight testing schedules? We prep in advance, bring in developers when needed, and keep a buffer for last-minute changes.

Even if a QA resource is temporarily out, our knowledge transfer docs ensure a smooth handoff to other QA specialists who can perform testing.

How do you keep us in control throughout the process?

We keep everything documented, tracked, and reported so you’re never in the dark. Expect regular updates, detailed test reports, and complete visibility in Jira to track real-time progress. Found a critical bug? You’ll know exactly when it’s fixed. Need adjustments? We’re already on it. Our software testing services are built for transparency, so you won’t have to chase us for answers.

How do you guarantee delivery as agreed?

From the start, we align on clear quality standards and specific deliverables. Every phase is documented, tracked, and tested against those standards. We maintain open communication, and with our 99.89% work acceptance rate, you can trust that we’ll meet the agreed scope. If something’s off, we’ll catch it early, fix it fast, and ensure you’re on the same page.

Will language barriers affect communication?

Language is never a barrier for us. With 98% of our clients from the US and UK, we’ve built a solid reputation for clear, precise communication. Our team speaks fluent English, ensuring project updates and technical details are delivered without misunderstanding. 

How do you stay stable given the situation in Ukraine?

Our team is distributed across multiple locations in Ukraine and abroad, ensuring stability and continuity no matter what. The situation in Ukraine hasn’t interrupted our ability to deliver results: we continue to sign new contracts and scale existing projects.

How do you keep estimates accurate and our budget on track?

With over 10 years of experience, we know how to balance scope and timelines without compromising quality. Our detailed planning at the start, ongoing communication, and early risk identification help us to avoid delays or budget overruns — we maintain CPI and SPI variances under 10% across our projects. We track progress closely, and if changes arise, we approve them with you before adding to the scope. You won’t face any unexpected costs or delays.

Key people

person.name
Andrii
Founder & CEO
Clockwiser from Day 1 | Led Clockwise to Top Ukrainian IT Company
person.name
🎤 Karaoke champion
🧠 Quiz monster
🐈 Cat team
person.name
Bogdan
Head of Delivery
10 y. of experience | Set up delivery with 99.88% acceptance rate
person.name
🏂 Snowboarder
💿 DJ
🥁 Drummer
☕ Coffeeholic
person.name
Serhii
Head of Client Relations
11 y. of experience | 98% client satisfaction rate
person.name
🚞 Traveller
Gym rat
☕ Coffeeholic
person.name
Natalia
Head of People
10 y. of experience | 100+ hired talents
person.name
Hyggeist
Wanderlust Soul
🏊‍♀️ Swimmer
🕯️ Detail Aesthete
person.name
Mike
Solution Architect
15 y. of experience | 50+ projects with 99,99% uptime reliability
person.name
🧑‍🍼Father of 3
person.name
Pavlo
Tech Lead
15 y. of experience | Managed 40+ developers as Tech Lead
person.name
💨 Motorhead
🧰 Tinkerer
person.name
Dmytro
Tech Lead
15 y. of experience | 10+ AWS projects led
person.name
🏎️ F1 Fan
🍻 Beer connoisseur
☕ Coffee aficionado
person.name
Yana
Design Lead
12 y. of experience | 100% UI/UX acceptance rate after user tests
person.name
👩‍🎨 Local artist
🧘‍♀️ Yoga practitioner
🦻Hearing Accessibility Advocate
📚 Bibliophile
person.name
Bogdan
QA Lead
17 y. of experience | QA Lead on 10+ multi-domain projects
person.name
🎓 Nerd
⛷️ Ski fan
Strong Spirits expert
person.name
Andrii
Project Manager
8 y. of experience | 30+ projects delivered
person.name
🏎️ Junior Car Drifter
🧳 Traveller
☕ Coffee enthusiast
person.name
Tetiana
Business Analyst
5 y. of experience | Saves $30K on avg./client with discovery
person.name
🧠 Braving the unknown
💬 Empathy-driven communicator
🏖️ Passionate traveler
person.name
Andrii
Founder & CEO
Clockwiser from Day 1 | Led Clockwise to Top Ukrainian IT Company
person.name
🎤 Karaoke champion
🧠 Quiz monster
🐈 Cat team
person.name
Bogdan
Head of Delivery
10 y. of experience | Set up delivery with 99.88% acceptance rate
person.name
🏂 Snowboarder
💿 DJ
🥁 Drummer
☕ Coffeeholic
person.name
Serhii
Head of Client Relations
11 y. of experience | 98% client satisfaction rate
person.name
🚞 Traveller
Gym rat
☕ Coffeeholic
person.name
Natalia
Head of People
10 y. of experience | 100+ hired talents
person.name
Hyggeist
Wanderlust Soul
🏊‍♀️ Swimmer
🕯️ Detail Aesthete
person.name
Mike
Solution Architect
15 y. of experience | 50+ projects with 99,99% uptime reliability
person.name
🧑‍🍼Father of 3
person.name
Tetiana
Business Analyst
5 y. of experience | Saves $30K on avg./client with discovery
person.name
🧠 Braving the unknown
💬 Empathy-driven communicator
🏖️ Passionate traveler
person.name
Andrii
Project Manager
8 y. of experience | 30+ projects delivered
person.name
🏎️ Junior Car Drifter
🧳 Traveller
☕ Coffee enthusiast
person.name
Bogdan
QA Lead
17 y. of experience | QA Lead on 10+ multi-domain projects
person.name
🎓 Nerd
⛷️ Ski fan
Strong Spirits expert
person.name
Yana
Design Lead
12 y. of experience | 100% UI/UX acceptance rate after user tests
person.name
👩‍🎨 Local artist
🧘‍♀️ Yoga practitioner
🦻Hearing Accessibility Advocate
📚 Bibliophile
person.name
Dmytro
Tech Lead
15 y. of experience | 10+ AWS projects led
person.name
🏎️ F1 Fan
🍻 Beer connoisseur
☕ Coffee aficionado
person.name
Pavlo
Tech Lead
15 y. of experience | Managed 40+ developers as Tech Lead
person.name
💨 Motorhead
🧰 Tinkerer
person.name
Mike
Solution Architect
15 y. of experience | 50+ projects with 99,99% uptime reliability
person.name
🧑‍🍼Father of 3
person.name
Natalia
Head of People
10 y. of experience | 100+ hired talents
person.name
Hyggeist
Wanderlust Soul
🏊‍♀️ Swimmer
🕯️ Detail Aesthete
person.name
Serhii
Head of Client Relations
11 y. of experience | 98% client satisfaction rate
person.name
🚞 Traveller
Gym rat
☕ Coffeeholic
person.name
Bogdan
Head of Delivery
10 y. of experience | Set up delivery with 99.88% acceptance rate
person.name
🏂 Snowboarder
💿 DJ
🥁 Drummer
☕ Coffeeholic
person.name
Andrii
Founder & CEO
Clockwiser from Day 1 | Led Clockwise to Top Ukrainian IT Company
person.name
🎤 Karaoke champion
🧠 Quiz monster
🐈 Cat team
person.name
Tetiana
Business Analyst
5 y. of experience | Saves $30K on avg./client with discovery
person.name
🧠 Braving the unknown
💬 Empathy-driven communicator
🏖️ Passionate traveler
person.name
Andrii
Project Manager
8 y. of experience | 30+ projects delivered
person.name
🏎️ Junior Car Drifter
🧳 Traveller
☕ Coffee enthusiast
person.name
Bogdan
QA Lead
17 y. of experience | QA Lead on 10+ multi-domain projects
person.name
🎓 Nerd
⛷️ Ski fan
Strong Spirits expert
person.name
Yana
Design Lead
12 y. of experience | 100% UI/UX acceptance rate after user tests
person.name
👩‍🎨 Local artist
🧘‍♀️ Yoga practitioner
🦻Hearing Accessibility Advocate
📚 Bibliophile
person.name
Dmytro
Tech Lead
15 y. of experience | 10+ AWS projects led
person.name
🏎️ F1 Fan
🍻 Beer connoisseur
☕ Coffee aficionado

Awards

Show more
Top Software Development Company, 2025
Top Software Development Company, 2025
Top IT Services Company, 2025
Top IT Services Company, 2025
Listed Among Top 1000 Companies Globally
Listed Among Top 1000 Companies Globally
Top NodeJS Developers, 2025
Top NodeJS Developers, 2025
Top Managed Service Provider in 2025
Top Managed Service Provider in 2025
Top Software Development Company, 2025
Top Software Development Company, 2025
Top IT Services Company, 2025
Top IT Services Company, 2025
Listed Among Top 1000 Companies Globally
Listed Among Top 1000 Companies Globally
Top NodeJS Developers, 2025
Top NodeJS Developers, 2025
Top Managed Service Provider in 2025
Top Managed Service Provider in 2025
Top Ukrainian Cloud Server Migration Company, 2025
Top Ukrainian Cloud Server Migration Company, 2025
Top Ukrainian Hosting and Cloud Service Company, 2025
Top Ukrainian Hosting and Cloud Service Company, 2025
Top Ukrainian IT Services Company for Real Estate
Top Ukrainian IT Services Company for Real Estate
Top Software Developers for Advertising and Marketing, 2025
Top Software Developers for Advertising and Marketing, 2025
Top IT Services Company for GPS Navigation and GIS, 2025
Top IT Services Company for GPS Navigation and GIS, 2025
Top Software Development Company in Ukraine for Startups
Top Software Development Company in Ukraine for Startups
Top Software Development Company for Small Businesses
Top Software Development Company for Small Businesses
Top React Development Company
Top React Development Company
Top B2B Company Globally, Fall 2024
Top B2B Company Globally, Fall 2024
Top B2B Company Globally, Spring 2024
Top B2B Company Globally, Spring 2024
Top Software Development Company, 2023
Top Software Development Company, 2023
Top IT Services Company, 2023
Top IT Services Company, 2023
Most Reviewed Software Developers on Clutch
Most Reviewed Software Developers on Clutch
Top NodeJS Development Company, 2023
Top NodeJS Development Company, 2023
Top Software Development Company for Marketing and Advertising, 2023
Top Software Development Company for Marketing and Advertising, 2023
Top Ukrainian IT Services Company for Advertising and Marketing
Top Ukrainian IT Services Company for Advertising and Marketing
Top Ukrainian Development Company, 2021
Top Ukrainian Development Company, 2021
Top Ukrainian Development Company, 2020
Top Ukrainian Development Company, 2020
Top Ukrainian B2B Company, 2019
Top Ukrainian B2B Company, 2019
Top Ukrainian Development Company, 2018
Top Ukrainian Development Company, 2018
01 | 25

Bug-free isn’t luck — it’s process.

200+ projects later, we know where issues hide. From functional to security testing, we cover every angle before your users find the flaws.
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