Kreios Space S.L.

Software Test Engineer

Nigrán, Spain permanent full-time On-site
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Job Description

Your mission will be to verify and validate flight software throughout its development lifecycle, ensuring that every software component performs safely, reliably, and predictably in the demanding conditions of space operations. You will work closely with software and systems engineers to define verification strategies, automate testing activities, and identify issues before they become mission risks.In an environment where systems must operate autonomously and reliably once deployed, your work will be essential to mission success. Key Responsibilities Design, develop, and maintain verification and validation plans for embedded software running on FreeRTOS-based platforms. Create and execute unit, integration, and system-level test cases. Develop and maintain automated test frameworks and integrate them into CI/CD pipelines. Verify real-time performance, including task scheduling, interrupt latency, deadlines, memory usage, and synchronization mechanisms. Execute test campaigns on target hardware, engineering models, and simulation environments. Analyze software failures, perform root cause investigations, and collaborate with developers to resolve issues. Measure and report test coverage, requirements traceability, and software quality metrics. Conduct robustness and fault-injection testing, including communication failures, memory corruption scenarios, watchdog behavior, and recovery procedures. Support compliance with applicable aerospace software engineering and quality standards. Contribute to continuous improvement of testing processes, automation tools, and verification methodologies. Bachelor's or Master's degree in Computer Engineering, Electronics Engineering, Telecommunications Engineering, Aerospace Engineering, or a related discipline. 2–5 years of experience in embedded software development or software testing. Hands-on experience with FreeRTOS or another Real-Time Operating System (RTOS). Strong programming skills in C and ability to analyze complex embedded software codebases. Experience using Python for test automation and tooling development. Practical experience with hardware debugging and laboratory instrumentation, including JTAG/SWD, logic analyzers, oscilloscopes, and serial interfaces. Experience with Git and CI/CD environments such as GitLab CI, Jenkins, or similar. Knowledge of embedded communication protocols including SpaceWire, CAN, I2C, SPI, and UART. Professional working proficiency in English. Nice to Have Previous experience in flight software, spacecraft systems, propulsion systems, or safety-critical environments. Familiarity with ECSS, DO-178C, IEC 61508, or comparable standards. Knowledge of static analysis tools and coding standards such as MISRA C, Polyspace, LDRA, cppcheck, or VectorCAST. Experience with ARM Cortex-M architectures, memory maps, and Memory Protection Units (MPU). Experience with platform emulation, simulation, Hardware-in-the-Loop (HIL), or Software-in-the-Loop (SIL) environments. Familiarity with requirements and traceability tools such as DOORS, Polarion, or Jama. Previous experience in the space, aerospace, or defense sectors. What We Offer The opportunity to contribute directly to cutting-edge space technologies and real missions. A highly technical and collaborative environment where engineers have a direct impact on product and architecture decisions. Access to hardware, testing facilities, and end-to-end system development activities. Professional growth within a fast-growing New Space company. Specialized training in aerospace standards, verification methodologies, and advanced engineering tools. The chance to help shape the future of space transportation and in-orbit operations.

Frequently Asked Questions

What does the Software Test Engineer role at Kreios Space S.L. involve?

The Software Test Engineer position at Kreios Space S.L. in Nigrán, Spain is a permanent full-time role. Your mission will be to verify and validate flight software throughout its development lifecycle, ensuring that every software component performs safely, reliably, and predictably in the demanding conditions of space operations. You will work closely with software and systems engineers to define verification strategies, automate testing activities, and identify issues before they become mission risks.In an environment where systems must operate autonomously and reliably once deployed, your work will be essential to mission success. Key Responsibilities Design, develop, and maintain verification and validation plans for embedded software running on FreeRTOS-based platforms. Create and execute unit, integration, and system-level test cases.

What skills are required for Software Test Engineer at Kreios Space S.L.?

Key skills for this role include: Python, Jenkins, CI/CD, Gitlab Ci, ECS, RDS, IOS, Git.

What is the salary for Software Test Engineer at Kreios Space S.L.?

The salary for this position is not publicly listed. You can negotiate during the interview process. Check Glassdoor or Levels.fyi for estimates.

Is the Software Test Engineer position at Kreios Space S.L. remote or on-site?

This position is On-site. The role is based in Nigrán, Spain.

How do I apply for Software Test Engineer at Kreios Space S.L.?

You can apply for this position directly through the employer's careers page. Click the 'Apply Now' button on this page to be redirected to the original listing. Make sure your resume is ATS-optimized. Use SpotChange's free ATS test to check.

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About This Role

Software Test Engineer at Kreios Space S.L. is a permanent full-time qa & testing position in Nigrán, Spain. Key skills include Python, Jenkins, CI/CD, Gitlab Ci, ECS, RDS, IOS, Git. Education: Master's Degree preferred. Experience: 5+ years.

This role is classified as on-site and is suitable for mid level-level professionals. Ghost Score 20/100 (Probably Active) indicates this listing is probably active with recent employer engagement.

To apply, visit the official application page through the Apply Now button above. SpotChange Jobs provides AI-powered career tools including resume optimization, ATS testing, interview preparation, and salary negotiation assistance.