OteroQA
QA · Software Testing · ISTQB®

Experts in software testing.

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Projects delivered
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Happy clients
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Positive reviews
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01 / Services

Everything your product needs to ship without surprises.

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Test execution

We run your test cases (manual and automated) and give you actionable results.

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Test plan design

Strategy, coverage and risk-prioritised cases for your product.

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Test automation

We turn your repetitive tests into a suite that runs itself on every change.

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Performance testing

Load, stress and scalability: find your limits before your users do.

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Regression testing

Every release, without breaking what already worked. Continuous confidence.

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Bug tracking

Clear, reproducible, prioritised reporting. From finding to fix.

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API testing

Contracts, integrations and response codes: the invisible layer, tested.

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Mobile app testing

Your app across real device fragmentation: iOS, Android, gestures and rotation.

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Desktop application testing

Windows and macOS across versions and resolutions: verified compatibility.

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Usability testing

We validate that your product is clear, accessible and easy to use.

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Accessibility testing

WCAG 2.2 audits with keyboard and screen reader: meet the law, reach more people.

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Testing for startups

Flexible QA that scales with your speed without slowing your roadmap.

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Testing AI-built projects

Apps built with Cursor, v0 or Lovable: we surface the bugs beneath the surface.

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QA for AI & LLM evaluation

We evaluate chatbots and agents: hallucinations, bias and consistency, with metrics.

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Projects delivered
// shipped
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Happy clients
// companies & startups
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Positive reviews
// happy clients
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Years of experience
// ISTQB certified
live QA radar

We catch your bugs before your users do.

We sweep every corner of your product systematically: wherever a fault appears, we detect it, report it and verify it fixed. What you see in red, we hand back to you in green.

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✗ detected → ✓ fixed·coverage by risk and impact
03 / Why choose us

Technical rigour, clear communication.

We're not a black box. We work as an extension of your team: we understand your product, prioritise by risk and impact, and report what we find in language everyone understands.

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ISTQB certified

Recognised methodology and industry best practices on every project.

Proven experience

4+ years and 68+ projects delivered for companies and startups.

Clear communication

Actionable reports, in Spanish and English, without needless jargon.

Focused on your business

We prioritise by real risk and impact, not by ticket volume.

04 / Process

How we work, step by step.

  1. 01
    Discovery
    We understand your product, risks and goals.
  2. 02
    Test plan
    Strategy, coverage and risk-prioritised cases.
  3. 03
    Execution
    We run the tests, manual and automated.
  4. 04
    Bug report
    Clear, reproducible and prioritised findings.
  5. 05
    Follow-up
    We verify fixes and keep improving.
05 / Testimonials

What teams who now ship with confidence say.

Their technical knowledge and meticulous attention to detail have been fundamental to our success. Invaluable for our team.

JWJudith W. BowersWilliam Hill

Exceptional work: they caught critical issues and ensured a flawless user experience. I highly recommend them for any testing service.

AHAlex HarperCasinado

Their testing expertise was invaluable. They caught critical issues and raised the quality of our web application with a thorough approach.

EIEduardo I.CH Carolina Herrera
06 / FAQ

Frequently asked questions

Software testing is essential to ensure the quality and functionality of an application before its release to the market.
07 / Blog

Latest articles

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Software Problems: How to Spot Them Before They Hurt Your Business
Software Testing

Software Problems: How to Spot Them Before They Hurt Your Business

Learn what the most common software problems are, why they appear, and how to prevent them through testing and quality control processes.

Damián Otero · 2 min
Software Bug: How Errors Affect Application Development
Software Testing

Software Bug: How Errors Affect Application Development

Discover what a software bug is, how it affects applications, and why testing is key to preventing errors and improving quality.

Damián Otero · 2 min
The Difference Between QA and QC: Everything You Need to Know in Software Testing
Software Testing

The Difference Between QA and QC: Everything You Need to Know in Software Testing

Discover the difference between QA and QC in software testing, their roles, advantages, and why both are key to ensuring quality.

Damián Otero · 2 min

Ready to ship with confidence?

Tell us about your product and we'll propose a tailored test plan. No commitment.

Book a call →Contact us