Welcome to AALTO, where we're blazing a trail to an extraordinary future! We're not just rewriting the rulebook; we're defining what is possible from the skis itself by, propelling HAPS technology to stratospheric heights. Imagine an aircraft soaring above 60,000 feet, powered by sunlight, and flying for months above traditional air traffic. That's us, AALTO, world-leaders in High-Altitude Platform Station (HAPS) technology, with our 100% solar-electric, world-record-breaking Zephyr HAPS aircraft. But that's just the beginning! We're on the verge of becoming the global leader in HAPS Connectivity as a Service (CaaS), connecting diverse needs in the Mobile and Satellite Network Operator market. We connect the various demands of our customers, whether it's for rural connectivity, overlay capacity, disaster recovery, or new service provision. Plus, we're opening doors in revolutionizing Earth observation, tracking, and communications, while operating a carbon-neutral Zephyr HAPS fleet. Join us in this exciting journey at AALTO. You won't just be part of a team; you'll be part of an eclectic, passionate group of visionaries shaping the future and pushing boundaries in the stratosphere. Ready to rewrite history with us? AALTO is not just creating an aircraft; we're shaping a future of boundless possibilities. Job purpose: We are seeking a Principal Ground Systems Engineer to join AALTO. In this role, you will report to the Systems Design Manager and oversee the development of our ground support systems. You will be responsible for the design, implementation and troubleshooting of the ground control stations and the stratospheric operations centre that facilitate the connection between aircraft and aircraft operators. This role involves ensuring the reliability, security, and efficiency of these critical systems, which play a key role in air traffic management, flight operations, and safety. Responsibilities: Foster a collaborative and innovative work environment, assisting with complex problem solving and decision making. Prepare and review documentation in accordance with Aalto’s processes and procedures. Collaborate with internal and external stakeholders to understand requirements and translate them into technical specifications and solutions. Conduct system performance analysis, diagnostics, and optimization to ensure reliable operation in various flight conditions. Provide technical support and training to maintenance personnel and other relevant employees on communication systems. Skills & experience: Educated to a degree level in a relavant field Proven experience in designing, testing, and maintaining communication systems, preferably within the aviation industry or similar (rail, nuclear, oil & gas, cyber, defence and space) Experience of specifying, designing and commissioning network systems – TCP/IP, UDP, Ethernet etc. Strong understanding of communication protocols, satellite systems, and HF/VHF/UHF radio systems. Familiarity with aviation regulations, standards, and certification processes (e.g., FAA, EASA, etc.). Excellent problem-solving skills and the ability to work under pressure in a fast-paced environment. Strong analytical skills and attention to detail. Ability to work independently as well as in a collaborative team environment. Effective communication skills, both verbal and written, for reporting issues and providing updates to internal and external stakeholders. Knowledge of cybersecurity best practices for aviation communication systems is a plus. Other Useful skills and experience: Aviation industry experience. Knowledge of uncrewed air systems. Experience with avionics systems and aircraft communication equipment. Knowledge of software tools used for communication system simulation and performance analysis. Experience working with regulatory bodies, such as the CAA, EASA, or ICAO. At AALTO, we offer an exceptional work environment that values your well-being and rewards your dedication. As part of our team, you'll experience the freedom of flexible working that enable you to achieve a healthy work-life balance. We believe in recognizing your hard work and commitment, which is why we provide a fantastic bonus scheme that rewards your contributions. Additionally, we understand the importance of financial security and support your future with a competitive pension plan. When you join us, you become part of a workplace that not only encourages your professional growth but also cares about your personal fulfilment and financial stability. AALTO HAPS Ltd. is an equal opportunities employer and positively encourages applications from suitably qualified and eligible candidates regardless of sex, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status or pregnancy and maternity.