Quality Assurance
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Software Quality Assurance

Improve Software Development Process with QA Standards and quality control

quality assurance services

Detect and fix issues early in your software development project

We deliver a wide range of software Quality Assurance services, always prioritizing customer satisfaction. Our flexible offerings adapt to the requirements of the most complex projects. We analyze business requirements to avoid costly mistakes made at the planning stage and carefully verify all stated requirements. By engaging with stakeholders and understanding their needs, we can identify potential risks, uncover ambiguities, and suggest improvements early on. This proactive approach allows us to streamline the development process and minimize rework, ultimately saving you time and resources. Whether you're developing a small application or a large-scale enterprise solution, our software QA professionals are ready to support you at every step of the way.
**Detect and fix issues** early in your software development project

Benefits of our Quality Assurance services

Including a QA Engineer in your software development team will raise your product or service to a world-class level and give you the edge over your competitors. A QA engineer brings expertise to your software engineering process to implement comprehensive testing strategies and ensure that your software meets high-quality standards. They meticulously examine the system, identify potential issues, and conduct rigorous testing to detect and fix bugs, thereby improving the overall quality of your product. This ultimately leads to increased customer satisfaction and loyalty.

Leverage QA standards to grow your business

Focus on the end-user perspective and usability to create the desired product. Delivering a product with no or minimal glitches boosts customer confidence in your brand. This could lead to higher customer retention, positive reviews, and an overall increase in reputation.

Save time and money

Using a technical approach and domain knowledge to identify sensitive areas allows us to provide validated features in every sprint. By catching issues early in the development process, you can avoid expensive fixes and customer service issues down the line.

Manage risk better

A QA Engineer helps in assessing and mitigating potential risks. They can identify vulnerabilities in your software that might expose it to attacks or breaches, thereby securing your product and your customers.

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Client Value & Trust

Learn how entrepreneurs, business and technology leaders who are after software driven innovation are collaborating with our high-performing teams.

Jan Thomas
Jan Thomas
Director of Product, Simplaex, DE

Selleo have allowed us to quickly scale our existing teams with additional developers, often within a couple of weeks. They're a pleasure to work with and have always delivered outstanding quality!

Leverage our **domain expertise** and **technical knowledge** to build a one-of-a-kind custom solution
Trust our experience

Leverage our domain expertise and technical knowledge to build a one-of-a-kind custom solution

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How we start collaboration


Signing the

Firstly we sign the non-disclosure agreement to protect your confidential business information.


Call with a Technical Team Lead and a BA

the next step is to schedule a meeting, that will help us with getting a better understanding of your business idea and gathering all the details allowing us to prepare the cost estimation.


Interviews with the whole Team

this is the opportunity for you to get familiar with members of the team that will deliver your product, so there are no unnecessary surprises.



when everything is settled, the team is ready to smoothly start working on the agreed date.


Our experience, your success

We take pride in our commitment to quality and excellence and our high Clutch rating is a reflection of that. We always strive to exceed expectations and deliver exceptional results to every client we serve.

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our team

Hire experienced software development team today!

Product Owners and CTOs in start-ups and SMEs craft their SaaS products or build their own cloud-based solutions with our teams.

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Our Expertise

How we helped clients grow their businesses

A micro-learning app for corporations offering scenario-based spaced learning

We have developed a unique admin section while rebuilding existing elements and designs. We have implemented various question types like video, presentation, or fill-in-the-gap, each of them with its own complexities which had to be managed carefully so the app can be easily extended in the future.View project
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QA software testing, or Quality Assurance testing, is a systematic process through which software is inspected, evaluated, and verified to ensure it meets specific quality standards and is free of defects. It is an integral part of the software development lifecycle that evaluates the system's compliance with the specified requirements. This process is important because it identifies any errors or inconsistencies that could adversely affect the software's functionality or performance. By detecting these issues early, QA testing helps save time, reduces development costs, and contributes to the delivery of a robust, reliable software product. In essence, it guarantees customer satisfaction by ensuring that the final product performs as expected and meets the user's needs.
Quality Assessment supports the software process by ensuring that all development stages adhere to the highest quality standards, thus reducing errors and promoting product reliability. It provides a framework for systematic inspection, testing, and evaluation of various aspects of a project, from coding practices to the user interface. Through iterative evaluations, it can identify potential issues early, preventing costly late-stage corrections and delivering more dependable products to customers. Quality Assessment also promotes a culture of excellence and continuous improvement within the software development team. Lastly, it mitigates risk by ensuring regulatory compliance and data integrity, which can lead to improved customer satisfaction and trust in the software.
Performance Testing in Quality Assurance (QA) is a critical non-functional testing type aimed at determining a system's speed, stability, and responsiveness under a specific workload. This form of testing validates how effectively the software product or application can handle high volumes of users or transactions and whether it can maintain its efficiency under peak loads.

Outsourcing QA services to a third-party provider can have several benefits for businesses, including:

  • Cost savings: outsourcing can be more cost-effective than hiring and training an in-house QA team, especially for smaller businesses or those with limited budgets.
  • Access to expertise: third-party providers often have specialized knowledge and expertise in QA and testing that businesses may not have in-house.
  • Scalability: outsourcing allows businesses to scale up or down their QA efforts as needed, without the need to hire or lay off employees.
  • Improved quality: by leveraging the expertise of a third-party provider, businesses can improve the quality of their products and reduce the risk of costly errors or downtime.
  • Focus on core competencies: by outsourcing non-core activities like QA, businesses can focus on their core competencies and strategic initiatives.
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Awards & Certificates

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  • Top 1000 Companies Global 2021
  • Top Development Company Poland 2021
HR dream team
  • 2020 HR Dream Team Award
  • 2016 Employer Branding Featured
  • 2015 HR Dream Team Award
ISO CertificateISO CertificateAWS Certificate
  • Information Security Management System compliant with PN-EN ISO/IEC 27001
  • Business Continuity Management compliant with ISO 22301
  • AWS Certified Solutions Architect - Associate