Company Description
We are seeking an experienced and passionate Senior QA Engineer for our newly established Technology Hub in Madrid. Working in a hybrid model (remote & onsite), you will enjoy significant freedom to innovate and influence the future of one of the world’s largest commercial real estate companies. With the leadership of the Global Technology Hub coming from a background of technology startups, you will benefit from a fast-paced learning environment, high visibility of your contributions and opportunities to shape processes, culture and technology strategies. At the same time, you take advantage of the stability, resources, and reach of a successful global company .
Guided by our global digital strategy, the Madrid Hub collaborates closely with international teams to deliver world-class technology solutions that power the future of commercial real estate.
As Senior QA Engineer , you will be instrumental in ensuring the delivery of high-quality, reliable and scalable enterprise software solutions. You will contribute to global products and platforms that serve both internal and external customers in Commercial Real Estate across multiple regions. Working closely with international Product, Engineering, DevOps, Data, QA and Architecture teams, you will ensure delivery excellence, software quality and great customer experience.
Your expertise will contribute directly to the quality of modern, component-based frontend application built with React and Typescript, as well as robust backend services developed in .NET.
You are a hands‑on problem‑solver with strong quality principles, who thrives in a collaborative and agile environment. This role offers the opportunity to influence technical direction and mentor junior members of the team while building solutions with real business impact.
Automation-First Test-Strategy




Collaborate towards the creation of a reusable automation testing framework
Develop and maintain comprehensive automated tests suites across frontend, backend, and API layers using tools such as Cypress, Playwright, Postman.
Lead the implementation of testing frameworks that support both functional and non-functional testing, with a focus on early detection of defects and fast feedback loops.
Partner with engineers to incorporate testing considerations into development efforts from the earliest stages – ensuring code is testable, scalable and maintainable.
Embed automated tests directly into CI/CD pipelines, working with DevOps and Engineering Operations to build quality gates and establish fast, reliable release workflows.
Drive culture of test-first development with unit-, integration- and performance-testing
Support root cause analysis and resolution of production issues, ensuring high reliability and uptime
Help define and adhere to coding standards, documentation and software lifecycle best practices.
Guide the selection and implementation of modern QA tools across test management, performance testing and frontend testing (Storybook integration).
Contribute to the standardization of test environments and data management strategies
Set up processes and practices to reduce test flakiness, support parallel execution, and minimize test execution times.
Advocate for meaningful test coverage that aligns with product requirements and end‑user behavior, using Figma and user stories to guide test case development.




Act as a technical mentor to mid-level and junior engineers within your team or project and beyond.
Identify opportunities for technical improvements and advocate for high-quality engineering standards
Continuous improvement of agile methodologies and tools
Integral Collaboration
Work closely with DevOps and Engineering Operations teams to optimize build pipelines, observability and deployment automation.
Share insights and best practices across teams, helping to foster a strong quality mindset throughout the engineering department.
Ensure compliance with global standards, information security policies and regulatory requirements
8+ years of experience in a QA or software testing role, with a strong background in test automation and modern development workflows.
~ Experience testing modern web applications using React, Typescript and .NET technologies.
~ Hand‑on experience with frontend and end‑to‑end testing frameworks.
~ Familiarity with API testing tools such as Postman or Cypress, with experience writing automated API tests and validating backend behavior
~ Experience with integrating tests into CI/CD pipelines using Azure DevOps or similar platforms.
~ Agile Development experience (Scrum/Kanban), including story estimation, code reviews and pair programming.
~ Experience working in distributed or remote teams and using tools such as Jira, GitHub, Miro and Azure DevOps.
~ Familiarity with test case management tools and practices
~ Solid understanding of performance optimization.
~ Excellent interpersonal and communication skills, fluent in English and Spanish.
~ Passionate about building high‑quality software products with empowered teams.
~ Experience with performance testing and security testing tools
Experience in working in a global, multi‑cultural organization.

📌 Software and Performance Testing Engineer (Madrid)
🏢 Colliers International Deutschland Holding
📍 Madrid