RF Power Systems Engineer

Kreios Space

YOUR MISSION You will be the technical owner of our satellite platform- the person who turns mission needs into a buildable, testable and reliable system, and who is not afraid to go hands-on when reality hits hardware. * Own the platform technical direction: define and drive the system architecture, requirements, interfaces and budgets to ensure a coherent end-to-end platform. * Make the right engineering calls: lead trade-offs across mass, power, thermal, data, RF and reliability to converge on a design the team can actually deliver. * Bring systems to the lab: define the verification approach and actively support AIT and test campaigns (planning, procedures, acceptance criteria, reports). * Be the “go-to” technical problem solver: troubleshoot anomalies, unblock the team, and push issues to closure with pragmatic engineering judgement. * Connect specialists into one system: align subsystem/domain experts across departments, ensuring interfaces, assumptions and decisions are consistent and documented. * Enable execution with structure: work with a Project Manager who supports planning and delivery tracking, so you can focus on technical leadership and hands-on execution. * On-site role: work from our facilities in Porto do Molle (Nigrán, Spain), close to the hardware, the lab and the engineering team. YOUR PROFILE * Engineering degree in Aerospace / Industrial / Telecommunications / Electronics (or similar). * 7+ years in space systems engineering, with participation in flight projects. * Proven hands-on experience in system/subsystem integration and verification (AIT). * Strong background in: * Requirements engineering & traceability * System architecture & interface management (ICDs) * V&V / test logic (procedures, reports, anomaly tracking) * Risk & reliability methods  and engineering margins * Space standards (ECSS or equivalent) * Comfortable working across structures, avionics, ADCS, thermal, propulsion, SW/FDIR and operations. * Mindset/skills: technical leadership, autonomy, clear communication, prioritization, ability to move from high-level architecture to detailed problem solving. Nice to have * MBSE / SysML and architecture tools. * Exposure to EGSE/MGSE, TVAC/vibration, EMC/EMI campaigns. * Experience with avionics/electrical interfaces, harnessing, C&DH, or on-board SW verification. * Strong configuration/documentation discipline (baselines, change control, review packages). WHY US? At Kreios Space, we’re not just building technology- we’re redefining propulsion in orbit. This is a place for people who want to push boundaries, challenge conventions, and work on problems that have never been solved before. We operate at the intersection of cutting-edge physics, aerospace engineering, and real-world impact- where your work doesn’t stay on paper, it flies. What makes us different: Real impact, real ownership: You won’t be a small cog in a large machine. Here, you’ll take full ownership of critical systems and see your work move from concept to space. Decisions are fast, responsibility is real, and your contribution is visible. Deep-tech challenges at the frontier: We’re tackling problems that only a handful of teams in the world are attempting. This means high intellectual rigor, constant learning, and the opportunity to work alongside exceptional engineers and scientists. Top-tier talent, low ego culture: We’re building a team of ambitious, high-performing people who care deeply about what they do- but who also value collaboration, humility, and clarity of thinking. A company on a mission, not just a roadmap: Kreios is not optimizing an existing solution- we are creating a new category in space propulsion. Joining now means shaping the technology, the culture, and the future of the company. Growth that matches your ambition: As we scale, so will your scope. This is the right place if you want your career trajectory to be as bold as the problems you’re solving.

STARK

ABOUT US STARK is a new kind of defence technology company revolutionising the way autonomous systems are deployed across multiple domains. We design, develop, and manufacture high-performance unmanned systems that are software-defined, mass-scalable, and cost-effective. This provides our operators with a decisive edge in highly contested environments. We are focused on delivering deployable, high-performance systems, not future promises. In a time of rising threats, STARK is bolstering the technological edge of NATO Allies and their Partners to deter aggression and defend Europe today. YOUR MISSION You will be the systems safety lead for a next-generation Unmanned Aerial System (UAS), driving a safety-by-design approach across the entire product lifecycle. This includes ensuring all mechanical, electrical, and software subsystems meet stringent safety requirements. As a Principal / Senior Systems Engineer, you will define the safety-critical architecture and interfaces, manage safety integration and verification activities, and drive system safety validation through rigorous testing, hazard analysis, and compliance reporting. RESPONSIBILITIES * Serve as the system safety lead for UAS product development and upgrades, owning overall platform safety and coherency from concept through delivery. * Work day-to-day within multidisciplinary teams (mechanical, electrical, avionics, software, test) across the full lifecycle of UAS design, integration, test and fielding. * Conceptualise and capture system architecture for new platforms and enhancements, producing technical trade studies, safety-critical sizing, and system performance assessments. * Establish and execute the system safety program, including the development of Preliminary Hazard Analyses (PHA) and System/Subsystem Hazard Assessments (SHA/SSHA). * Lead and coordinate Failure Mode and Effects Analysis (FMEA) and Design Failure Mode and Effects Analysis (DFMEA) activities across multidisciplinary teams. * Produce layout and system design plans, define Interface Control Documents (ICDs) and enforce interface control processes for mechanical, electrical, and software subsystems. * Establish and maintain requirements baselines, including safety requirements, and traceability using industry tools (e.g., IBM DOORS) and MBSE approaches. * Implement robust change control processes to manage and assess the impact of all design changes on system safety and compliance. * Act as the technical interface between internal teams, suppliers and customers to coordinate payload integration, unique/custom hardware or software interfaces, and ensure on-time capability delivery. * Manage tactical engineering tasks during development sprints and test campaigns, resolving cross-discipline issues and maintaining configuration control. QUALIFICATIONS * Degree (or equivalent) in Systems, Aerospace, Electrical or a closely related Engineering discipline. * Significant industry experience with demonstrable systems engineering and system safety responsibility on UAV/aerospace or equivalent complex, safety-critical platforms. * Strong practical experience integrating complex systems: power systems, RF/EMC, EO sensors, networking, flight controllers and payload interfaces. * Proven track record in requirements capture, compliance analysis, and verification/validation activities; proficient with requirements management tools (IBM DOORS or similar). * Demonstrable experience leading and executing safety analyses, including Hazard Assessments (PHA/SHA/SSHA) and FMEA/DFMEA. * Familiarity with safety standards (e.g., ARP4754A, ARP4761, DO-178C, DO-254) and the principles of requirements and change control in a regulated environment. * Familiarity with MBSE principles, interface control processes and configuration management in regulated environments. * Excellent written and verbal communication skills; highly organised and detail-oriented. * Ability to operate effectively in fast-moving, ambiguous environments and to travel within the UK/Europe for testing and integration. * A genuine passion for system development, integration and testing and a collaborative, inclusive team approach. * Security-cleared or eligible to obtain UK defence clearance. Desirable * Prior experience leading Systems Engineering and authoring safety assurance documentation and risk management artefacts. * Experience integrating complex/custom payloads for partner or customer use (hardware, electrical and software interfaces). * Background in start-up or scale-up environments where rapid prototyping, iterative testing and pragmatic engineering decisions are typical.

STARK

ABOUT US STARK is a new kind of defence technology company revolutionising the way autonomous systems are deployed across multiple domains. We design, develop, and manufacture high-performance unmanned systems that are software-defined, mass-scalable, and cost-effective — providing operators with a decisive edge in contested environments. We are focused on delivering deployable, high-performance systems — not future promises. In a time of rising threats, STARK is bolstering the technological edge of NATO Allies and their Partners to deter aggression and defend Europe, today. YOUR MISSION STARK is building the next generation of counter-UAS capability, and we need an Electrical Engineer who wants to be at the sharp end of that problem. You'll sit within our C-UAS team in Swindon, owning the electrical design and integration of systems that need to work — reliably, in the field, under pressure. This isn't a maintenance role; you'll be shaping hardware that goes into operational environments. RESPONSIBILITIES * Design, develop, and validate electrical systems and subsystems in support of STARK's C-UAS product line. * Own schematic capture, PCB layout review, and electrical architecture documentation from concept through to production release. * Support hardware integration and bring-up, troubleshooting electrical issues across RF, power, and digital domains, including the integration of autonomy companion computers (SBCs), flight controllers, radio links, and high-power electric propulsion systems (EDFs/BLDC motors). * Collaborate closely with mechanical, software, and systems engineers to resolve cross-discipline design conflicts early. * Define and execute electrical test plans, including EMC/EMI considerations relevant to field-deployed defence systems. * Contribute to design reviews (PDR, CDR) and produce clear, accurate technical documentation. * Liaise with suppliers and contract manufacturers on component selection, lead times, and production quality. * Support field trials and customer demonstrations where electrical performance validation is required. QUALIFICATIONS * Degree in Electrical Engineering, Electronic Engineering, or a closely related discipline. * Proven experience (4+ years) in hardware/electrical engineering, ideally in a defence, aerospace, or high-reliability product environment. * Proficiency in schematic capture and PCB design tools (Altium preferred). * Solid understanding of power electronics, signal integrity, and mixed-signal design. * Familiarity with EMC standards and design-for-manufacture principles. NICE TO HAVE * Direct experience with UAS, C-UAS, EW, or RF-heavy systems. * Experience with the electrical integration of seeker payloads (e.g., EO/IR Gimbals) and fuzing mechanisms. * Exposure to STANAG or MIL-SPEC design requirements. * Experience supporting field trials or rapid prototyping in a defence startup or SME context. * Familiarity with DO-254 or similar airborne/defence hardware assurance frameworks. If you're interested in building the future of European Defence with us, and you see yourself reflected on the description above, please send us your CV in English. We´re looking forward to meeting you!