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AssertQA

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AsserQA is a leading Quality Assurance (QA) company recognized globally for delivering exceptional software testing services. With a strong focus on innovation, AsserQA provides tailored solutions to meet its clients' diverse needs, ensuring software quality, reliability, and scalability. The company specializes in automated testing, performance analysis, security assessments, and user experience validation.

  • Min project size
    $5,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    10 - 49
  • Locations
    Beograd, Serbia
  • Year founded
    Founded 2018

Overview by:

Reviewer avatar
Marko Kolasinac
CEO About the Team

1 Locations

  • Beograd , Serbia

Service Lines
Application Testing
100%
Select Focus Area
Functional Software Testing
Regression Testing
30%
Acceptance Testing
20%
A/B Testing
15%
Integration Testing
15%
IoT Testing
10%
Sanity Testing
10%
Application Testing Focus
Automation Testing
60%
Manual Testing
20%
Beta Testing
10%
Compliance Testing
5%
Stress Testing
5%
Industries
Information technology
100%
Clients
Midmarket ($10M - $1B)
50%
Enterprise (>$1B)
30%
Small Business (<$10M)
20%

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Our Story

We are AssertQA, a Belgrade-based QA consultancy delivering hands-on testing expertise across fintech, healthtech, mobility and SaaS. Our team embeds with product teams to provide test automation, API, manual, performance, mobile and accessibility testing plus consulting, training and experimental R&D. We’ve helped startups to enterprises (Deutsche Telekom, Becton Dickinson, Solflare, Efinity) improve release confidence, catch issues early and scale QA practices.

Meet the Team

Marko Kolasinac

Marko KolasinacCEO

Marko Kolašinac is the founder and CEO of AssertQA. In IT since 2007 and focused on QA since 2018, he's an official Cypress Ambassador and leads a team specializing in Cypress, Playwright, and WebdriverIO automation.

What Sets Us Apart

Reputation That Travels by Word of Mouth

Most of our clients find us through referrals, not ads. When QA engineers and dev teams recommend us to their next company, that's the kind of trust that's hard to manufacture — and it's why we've kept it since day one.

Brutal Honesty

We don't do polite lies. If your release isn't ready, we'll say it , even if it's the week before launch and nobody wants to hear it. Comfortable answers don't ship good software; honest ones do.

We Care — Actually

We don't treat your product like a ticket queue. If something feels off, we flag it — scope or no scope. Your release quality is personal to us, not just a line item.

Quick Facts

8 years in business

Tools and Technology

Slack
Google Meet
Zoom
ClickUp
Notion
Google Drive
GitHub
GitLab
Grafana
Vercel
Cloudflare
Google Workspace

Commonly Asked Questions

Fewer bugs reaching production, faster release cycles, and clients who come back without us having to chase them. If a team trusts our sign-off enough to ship without double-checking, that's success — everything else is just metrics on a slide.

Locations (1)

Vidikovački venac Beograd, Serbia

16 - 20

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