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Linux Systems & Software Engineering Intern Unpaid, full-time internship | Remote possible | Luleå region preferred | Flexible start date and duration About Visar Systems Visar Systems AB is a Swedish cybersecurity company developing secure computing platforms for critical systems with demanding regulatory and certification requirements. Our core product, DeeDee, is an open and Debian-compatible Linux operating system designed to give organisations a secure and stable foundation without unnecessary vendor lock-in. We believe that digital sovereignty, transparency and long-term maintainability are essential for systems operating in critical environments. Visar Systems was founded in 2025 and is based in the Luleå region. We are a close-knit team of three people with experience in software development, systems design, large-scale capacity planning, cybersecurity and business development. Our core product is operational and is already being evaluated in live customer environments. We are now turning early deployments and customer-specific integrations into a scalable commercial product. About the internship We are looking for a technically curious and versatile intern who wants practical experience across software development, Linux systems, infrastructure and customer integration. This is not an internship built around one isolated task. Depending on current priorities, you may write code, package software, improve development processes, troubleshoot Linux environments, support customer integrations or produce technical documentation. You will work closely with our technical team and receive guidance from people with experience in secure systems, software development, infrastructure and large-scale operations. We also value initiative and independent problem-solving. You should be comfortable investigating technical problems, asking relevant questions and moving your work forward within established technical and security frameworks. What you may work with Your assignments will be adapted to your existing skills, interests and development goals. They may include: * Developing, maintaining and testing components within our Linux-based product environment. * Writing code and scripts in different languages depending on the task. * Packaging software and contributing to the development of our own Linux distribution. * Working with Git and CI/CD in our self-hosted GitLab environment. * Supporting and improving development, build and deployment processes. * Working with internally managed servers and technical infrastructure. * Testing integrations between Visar Systems’ technology and customer environments. * Helping develop customer-specific solutions that can become reusable product capabilities. * Troubleshooting across software, operating systems, infrastructure and integrations. * Contributing to systems design and technical architecture discussions. * Producing technical, operational and compliance-related documentation. * Supporting customer pilots and other technical customer activities. * Contributing to planned information-security certification work and third-party-reviewed CE marking of the product. The balance between programming, Linux systems, infrastructure, integration and documentation will depend on your background and the projects underway during the internship. Our technical environment Our technical environment includes: * Linux, including our own Debian-compatible distribution. * Traditional infrastructure and software packaging. * Self-managed servers and development environments. * Git-based development using a self-hosted GitLab instance. * CI/CD and automated development workflows. * Open-source software and open standards. * Programming and scripting across languages such as Rust, C++, Go, Python and Bash, depending on the task. Visar Systems operates its own infrastructure wherever practical. We favour solutions that support digital sovereignty, transparency and long-term independence. Who we are looking for You do not need to be an expert in every area. We are looking for someone with a broad technical foundation who can apply existing knowledge to new problems and is comfortable moving between different technical responsibilities. We believe that you have several of the following: * Academic studies, professional experience or substantial personal projects within computer science, software engineering, IT, cybersecurity or a related field. * Practical experience working with Linux. * Some experience in software development or scripting. * Familiarity with Git and basic software development workflows. * An interest in systems architecture, infrastructure or technical integration. * A methodical approach to troubleshooting. * The ability to write clear and structured technical documentation. * A security-conscious approach to systems and information. * The ability to work independently while collaborating with a small team. * Professional working proficiency in written and spoken English. You must be comfortable working in an environment where security requirements influence which tools, platforms and working methods can be used. Additional advantages Experience in any of the following is beneficial but not required: * Debian or another Debian-based Linux distribution. * Debian packaging or related build technologies. * Open-source development or personal open-source projects. * Self-hosted or on-premises infrastructure. * Rust, C++, Go, Python, Bash or other relevant programming languages. * CI/CD systems and GitLab. * Systems hardening or secure configuration. * Regulated sectors such as defence, energy, industry, finance, healthcare or government. * Information-security and compliance frameworks such as ISO/IEC 27001 or GDPR. We also value open-source contributions, home labs, Linux administration, software packages and other hands-on technical projects completed outside formal employment or education. Security and trust Our products are designed for critical environments, including defence, industrial systems and energy infrastructure. Swedish citizenship or an existing security clearance is not a formal requirement. However, we maintain strict internal security policies and conduct an internal security assessment and background check as part of the selection process. Trust, sound judgement and responsible handling of information are essential. Location and working arrangements The internship can be completed remotely. However, our team is based in the Luleå region, and it is an advantage if you live nearby or can participate in on-site activities when needed. Being close to the team may provide additional opportunities to work directly with our infrastructure, participate in technical discussions and join customer or partner activities. Why join Visar Systems? You will work with a functioning cybersecurity product as it moves into customer pilots, commercial deployments and further development. The internship provides insight into the complete technical environment rather than one isolated part of the development process. Your work may span software, Linux, infrastructure, security, documentation and customer integration. This opportunity is particularly suitable for someone who enjoys technical variety, takes initiative and wants to understand how secure systems are developed for regulated and critical environments. If available, please include links to relevant GitHub or GitLab repositories, open-source contributions, home-lab projects or other examples of your technical work. Language requirements Professional working proficiency in written and spoken English is required. Practical information * Website: visar-systems.com * Format: Full-time, unpaid internship. * Duration: Flexible and agreed with the selected candidate. * Start date: Flexible and agreed with the selected candidate. * Location: Remote possible; candidates based in the Luleå region are particularly welcome. * Compensation: No salary or other financial compensation is offered during the internship. * Continued employment: Employment may be discussed after the internship. This depends on Visar Systems’ future financing, business needs and the mutual fit between the company and the intern. Continued employment cannot be guaranteed.

About Vimotek Vimotek is a space company, recently named on Ny Teknik’s 33 List as one of Sweden’s most promising technology startups, working to de-risk spacecraft proximity operations, accelerate time-to-orbit and enable scaling of in-orbit services. The company equips space companies’ engineering and operations teams with leading dual-use solutions for in-space automation within two closely associated and complementary domains: 1. Digital Twins of Spacecraft for Missions Simulation and Validation 2. AI-Driven Sensing, Perception and Control Your role We are now looking for an experienced Backend Developer who wants to take a central role in shaping both our product and the technical foundation behind it. This is a role for someone who enjoys building products from the ground up, cares deeply about quality and reliability, and wants real influence in a fast-growing, ambitious company. As a Backend Developer at Vimotek, you will work closely with product owners, engineers, and the software team to shape the direction of our simulation and validation platform. You will contribute both strategically and hands-on, helping us build scalable, reliable, and maintainable systems for the next phase of our product. You will: • Collaborate with product owners to shape product direction and business strategy. • Contribute your experience as a developer to help grow the team and improve how we work. • Use your strong cloud and infrastructure expertise to ensure scalability, reliability, and long-term maintainability. • Lead the team’s work in planning and prioritizing development efforts. • Take an active, hands-on role in backend development and core product functionality. • Work on simulation capabilities for complex space operations. • Support engineers from different disciplines in developing simulation functionality, including areas such as thermal systems, robotics, orbital mechanics, and more. Required Skills and Qualifications: • At least 5 years of professional software development experience. • Strong experience building backend systems from the ground up. • Solid understanding of system design, software architecture, and scalable backend design. • Hands-on experience with cloud infrastructure, hybrid infrastructure, or modern deployment environments. • Experience designing, deploying, and maintaining reliable production systems. • Practical experience with technologies such as Python, Java, Go, REST APIs, GraphQL, Docker, Kubernetes, databases, and GitHub Actions. • Strong understanding of DevOps practices and modern CI/CD workflows. • Ability to contribute hands-on to backend development as well as core product functionality. • Experience working with performance, reliability, maintainability, and long-term scalability in mind. • Ability to collaborate closely with product owners and engineering teams to shape product direction and technical priorities. • Willingness to take ownership, lead planning and prioritization, and help improve team processes. • Interest in working primarily on-site with a young, ambitious, and fast-moving team. Bonus Skills (Nice to Have) • Previous experience in the space industry. • Experience with digital twins or complex simulation software. • Knowledge of simulation domains such as orbital mechanics, robotics, thermal systems, or other engineering simulations. • Experience developing software for validation, verification, or mission-critical systems. • Experience with AI-assisted development or applying AI in modern software workflows. • Experience working in a startup, scaleup, or product-led technology company. • Frontend experience with React. The company’s primary language is English, proficiency in additional languages is a plus. Right to work in Sweden: You must already have legal authorization to work in Sweden (EU/EEA citizenship, permanent residence, or a valid Swedish work permit). We cannot offer visa sponsorship for this role. Location: This role is based in Luleå and requires working on-site regularly. Join Vimotek and our exciting mission to develop the solutions that will enable industrialization of space - let’s do great things together!

About Vimotek Vimotek is a space company, recently named to Ny Teknik’s 33 List as one of Sweden’s most promising technology startups. The company works to de-risk spacecraft proximity operations, accelerate time-to-orbit, and enable the scaling of in-orbit services. Vimotek equips engineering and operations teams with leading dual-use solutions for in-space automation within two closely connected and complementary domains: 1. Digital Twins of Spacecraft for Mission Simulation and Validation 2. AI-Driven Sensing, Perception and Control Your role You will play a key role in developing Vimotek’s in-space automation products for onboard sensing, perception, control, and robotics. These are real hardware products moving from prototype to flight-ready delivery. As Mechanical Design Engineer, you will be responsible for the mechanical design as part of a multidisciplinary team, working alongside colleagues in systems engineering, electronics, optics, software, and test/assembly to bring the product to life. You will also contribute to establishing practical tools and ways of working for mechanical development in a space startup environment. You will: * Design housings and subassemblies for compact sensing units * Own mechanical interfaces to sensors, electronics, harnessing, and customer spacecraft mounting points * Drive design for manufacturing by selecting processes, simplifying assembly, building in alignment features, and ensuring repeatability * Create manufacturing-ready documentation, including drawings, tolerances, materials and finishes, BOMs, and assembly notes * Support prototyping and bring-up through build and fit checks, root-cause analysis, and fast iterations * Participate in assembly, integration, and test (AIT) of engineering models and the first flight model * Help establish lightweight mechanical working methods, including templates, part numbering, revision control, and a practical PDM approach * Collaborate with suppliers and manufacturers to ensure parts are produced correctly and to improve designs based on feedback Required skills and qualifications * Strong hands-on experience taking mechanical designs from concept to CAD to drawings to prototypes to manufacturing * Experience designing compact electromechanical products, such as sensor products, robotics, industrial devices, medical devices, automotive systems, or aerospace products * Solid design-for-manufacturing mindset, including tolerance strategy, fastening and alignment features, and practical assembly considerations * Ability to create clear manufacturing packages, including drawings with tolerances, materials and finishes, BOMs, and assembly documentation * Comfortable working cross-functionally with systems and electronics engineers and handling interface trade-offs * Experience working with and setting up PDM/PLM tools * Self-driven and structured, with the ability to set priorities, build routines, and make steady progress in a startup environment Bonus skills * Space or aerospace mechanical design experience * Opto-mechanics experience, including lens assemblies, sensor alignment, mounts, and stray light baffles or covers * Experience preparing hardware for environmental testing, such as vibration, shock, and thermal cycling, and working with test houses * Basic thermal and structural awareness for harsh environments, with support from external specialists for detailed analysis * Familiarity with contamination control and clean handling around optics and sensors The company’s primary language is English, and proficiency in additional languages is a plus. Right to work in Sweden You must already have legal authorization to work in Sweden, through EU/EEA citizenship, permanent residence, or a valid Swedish work permit. We cannot offer visa sponsorship for this role. Location This role is based in Luleå and requires regular on-site work. Join Vimotek on its exciting mission to develop the solutions that will enable the industrialization of space – let’s do great things together.