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Quality Assurance

Ensure excellence with our QA team

Enhance your software application quality with Zimalab’s proven QA services. Our experienced testing engineers deliver meticulous manual and automated testing to uncover defects, assure performance, compatibility, and security at every stage of development—keeping your business moving forward.

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QA
Bug Report
Regress Testing
Security
Compatibility
Test Cases
Load Testing
Usability
QA
Bug Report
Regress Testing
Security
Compatibility
Test Cases
Load Testing
Usability

Comprehensive QA testing to secure your digital success

Our team offers a full range of quality assurance services tailored to your business goals. Our team ensures flawless functionality and performance through manual and automated testing, QA consulting, and test planning with qase.io. We conduct in-depth performance testing using JMeter, detect security risks aligned with OWASP, and perform cross-platform testing, API testing, and user flow validation. From shift-left testing in CI/CD pipelines to detailed bug tracking and test coverage analysis, we help you reduce risk, speed up releases, and deliver quality software that drives success.

Consultation

Looking for a top-tier QA support?

Partner with Zimalab - your trusted software QA company - and benefit from tailored quality assurance strategies, superior testing automation, and full lifecycle verification that reduces risk and elevates satisfaction. Contact us today for a free consultation and discover how our QA expertise can enhance your digital enterprise and deliver robust, secure, high-performing applications.

35
INDUSTRY SECTORS
100%
JOB SUCCESS ON UPWORK
10
YEARS OF EXPERIENCE
250+
SUCCESSFUL PROJECTS

Our Process

Quality Assurance (QA) Process

Requirement Review and Test Planning

We start by thoroughly reviewing project requirements and specifications with the client to define testing objectives, scope, and success criteria, ensuring alignment on quality expectations.

Test Case Development

Our QA team creates detailed test cases and scenarios based on the project requirements, covering all functionalities, user interactions, and edge cases to ensure comprehensive coverage of the application.

Functional Testing

We execute the test cases to verify that all features work as intended, including testing workflows, forms, integrations, and permissions, and document any bugs or issues for resolution.

Performance and Security Testing

We assess the application's responsiveness, load handling, and speed, along with security vulnerabilities, to ensure it performs well under expected use conditions and protects user data.

User Acceptance Testing (UAT)

We coordinate with the client to conduct UAT, allowing their team to validate that the application meets their expectations and requirements before final deployment, gathering feedback for any necessary adjustments.

Final Review and Sign-off

After addressing all issues found during testing, we perform a final round of verification, compile comprehensive reports, and obtain formal approval from the client, confirming that the product is ready for launch.

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We provide

Development Services

Manual Testing Services

Exploring every potential edge-case bug is critical for a stable product. Our QA team dives into manual testing, simulating real-user behavior across platforms to uncover hidden defects before release, ensuring consistency in functionality and usability.

Test Case Design & Test Planning

We build precise test strategies using tools like Qase.io, defining clear test cases and structured plans that map to your app’s requirements. This approach ensures comprehensive feature coverage, effective test execution, and traceable results.

Automated Testing Services

Leveraging Selenium, Selenide, and Java, we create automated test suites that execute repetitive checks reliably and fast. This strengthens regression control, boosts efficiency, and helps your team release with confidence.

Performance & Load Testing

By simulating stress testing scenarios with JMeter, we identify performance bottlenecks and load thresholds under high concurrency. Our diagnostics ensure your apps deliver solid performance even under heavy user loads.

Security Testing

Applying OWASP standards, we conduct thorough scans for XSS, SQL injection, CSRF, and other vulnerabilities. Our goal is to reinforce your application’s security, mitigate risk, and ensure regulatory compliance.

Usability & UX Testing

We evaluate user journeys, navigation, and interface clarity through user flow validation, ensuring your product is intuitive, engaging, and provides a top-tier customer experience.

API Testing

Focusing on both RESTful and SOAP API, we utilize Postman and SoapUI to validate endpoints, check data integrity, handle error scenarios, and support integration quality across services.

Cross‑Browser & Cross‑Platform Testing

Through cloud platforms (e.g., LambdaTest), we test in Chrome, Firefox, Safari on Windows, macOS, Android, and iOS—catching browser‑specific bugs and delivering a consistent experience.

Continuous Testing in CI/CD Pipelines

We integrate shift-left testing into CI/CD using Bitbucket Pipelines or GitHub workflows, enabling early defect detection and improving code quality throughout development cycles.

QA Consulting & Strategy Development

Our specialists work closely with your team to assess processes, build TDD/BDD frameworks, define quality KPIs, and lay out a robust quality assurance roadmap tailored to your enterprise objectives.

Bug Tracking & Reporting

Using YouTrack and Linear, we streamline bug reporting and test-task alignment, offering transparent workflows and ensuring all defects are tracked, prioritised, and resolved collaboratively.

Quality Metrics & Test Coverage Analysis

We leverage metrics to assess coverage, defect density, and test effectiveness—enabling data-driven QA decisions that enhance your digital product’s reliability.

Our performance

Case Studies

Music Lessons Online

Rebuild a comprehensive learning portal dedicated to teaching musical instruments, featuring a subscription-based access model with a curated catalog of songs and artists.

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Music Lessons Online
Online Education Marketplace

Upgrade and rebrand online education marketplace for teachers and tutors search and implement new functionality

View Project
Online Education Marketplace
ERP Solution for Car Repair Business

Develop a CRM/ERP solution for a chain of 500+ car bodyshops with dashboard for orders and supply management

View Project
ERP Solution for Car Repair Business
CMS for Spanish Language Schools

Develop a multilingual site for chain of Spanish language schools with a rich custom CMS to manage all static and dynamic content

View Project
CMS for Spanish Language Schools
Trading Signals Dashboard

Build a real-time dashboard with personalized signals for currency trading

View Project
Trading Signals Dashboard
Security Management System

Develop a SaaS software to manage ads and threats blocking lists to reduce malware infection and other security vulnerabilities

View Project
Security Management System
Powernapp – Hotel Booking platform

Web application for booking hotels with special offers for SME and integrations with RezExchange, Cubilis and Smarthotels

View Project
Powernapp – Hotel Booking platform
Music Lessons Online

Rebuild a comprehensive learning portal dedicated to teaching musical instruments, featuring a subscription-based access model with a curated catalog of songs and artists.

View Project
Music Lessons Online
Online Education Marketplace

Upgrade and rebrand online education marketplace for teachers and tutors search and implement new functionality

View Project
Online Education Marketplace
ERP Solution for Car Repair Business

Develop a CRM/ERP solution for a chain of 500+ car bodyshops with dashboard for orders and supply management

View Project
ERP Solution for Car Repair Business
CMS for Spanish Language Schools

Develop a multilingual site for chain of Spanish language schools with a rich custom CMS to manage all static and dynamic content

View Project
CMS for Spanish Language Schools
Trading Signals Dashboard

Build a real-time dashboard with personalized signals for currency trading

View Project
Trading Signals Dashboard
Security Management System

Develop a SaaS software to manage ads and threats blocking lists to reduce malware infection and other security vulnerabilities

View Project
Security Management System
Powernapp – Hotel Booking platform

Web application for booking hotels with special offers for SME and integrations with RezExchange, Cubilis and Smarthotels

View Project
Powernapp – Hotel Booking platform
Music Lessons Online

Rebuild a comprehensive learning portal dedicated to teaching musical instruments, featuring a subscription-based access model with a curated catalog of songs and artists.

View Project
Music Lessons Online
Online Education Marketplace

Upgrade and rebrand online education marketplace for teachers and tutors search and implement new functionality

View Project
Online Education Marketplace
ERP Solution for Car Repair Business

Develop a CRM/ERP solution for a chain of 500+ car bodyshops with dashboard for orders and supply management

View Project
ERP Solution for Car Repair Business
CMS for Spanish Language Schools

Develop a multilingual site for chain of Spanish language schools with a rich custom CMS to manage all static and dynamic content

View Project
CMS for Spanish Language Schools
Trading Signals Dashboard

Build a real-time dashboard with personalized signals for currency trading

View Project
Trading Signals Dashboard
Security Management System

Develop a SaaS software to manage ads and threats blocking lists to reduce malware infection and other security vulnerabilities

View Project
Security Management System
Powernapp – Hotel Booking platform

Web application for booking hotels with special offers for SME and integrations with RezExchange, Cubilis and Smarthotels

View Project
Powernapp – Hotel Booking platform

Our Skills

Tech Stack

React.js
React.js
Vue.js
Vue.js
PHP
PHP
Python
Python
Django
Django
Symfony
Symfony
Javascript
Javascript
Node.js
Node.js
Laravel
Laravel
FastAPI
FastAPI
Chat GPT
Chat GPT
AWS
AWS
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About Us

Why Choose Us

Expertise & Reliability

QA specialists with proven experience across enterprise and startup web projects ensure dependable software validation.

Comprehensive Process Coverage

From requirements verification through design, functionality, API, performance, security, to post‑release monitoring, we cover every QA stage.

Tool-Driven Precision

We combine manual insight with automated TDD/BDD frameworks and modern tools—guaranteeing control and consistent quality.

We're proud to work with

More than 200+ companies trusted us worldwide

What Clients Say About Us

Testimonials

FAQ

Frequently Asked Questions - Quality Assurance Services

How does QA save time and money?

Our QA team finds issues early, preventing expensive delays and rework. Fixing bugs after release can cost times more.

Will you test on all devices and browsers?

By default we test on popular browsers (Chrome, Firefox, Safari) and platforms (Windows, macOS, Android, iOS last two versions). We expand or narrow the number of supporting devices according to your needs.

How realistic is your testing?

We simulate real-world user behavior and traffic (including high load scenarios).

Can I handle testing by myself?

Yes, but it’s rarely efficient. Our QA team with special skills reviews every step - from documentation to final testing and catches tricky bugs and ensures real quality.

Can your services adapt to different project needs?

Yes, we offer flexible services — from full QA cycles to focused on your specific tasks.

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