AALTO’s Zephyr aircraft is a High-Altitude Platform Station (HAPS) and is currently the sectors lead product having completed the most hours in the stratosphere with numerous payloads and configurations. Having already flown beyond 60 days we have demonstrated that we are able to provide longevity in the stratosphere, enabling both civil and military operations above 60,000ft which is up and beyond conventional air traffic.

Zephyr provides a more affordable service solution than satellites, with the additional benefit of increased mobility as we can relocate in lieu of needing to deploy additional satellites.

As a newly established entity we plan to become a leading Global HAPS Connectivity Service provider for the Mobile and Satellite Network Operator market. We can connect the diverse needs of our customers – whether for rural, overlay capacity, disaster recovery or new affordable service provisions. As a Platform as a Service (PaaS) we can also offer both Institutions and Military operators; Earth observation, tracking and comms. solutions and all powered by sunlight.

Job Purpose:

We are seeking an experienced and detail-oriented RF Engineer to join our team. The RF Engineer will be responsible for designing, testing, and optimising wireless communication systems and components. This role involves working on RF system design, signal processing, testing, and ensuring system performance meets operational standards.

Responsibilities:

• RF System Design: Develop/specify RF systems for wireless communication     applications, ensuring optimal performance.
• Signal Analysis & Testing: Conduct RF measurements and simulations using tools like spectrum analysers, signal generators, and vector network analysers (VNA).
• Prototype Development: Validate and test prototypes of RF circuits, antennas, and systems to meet specifications.
• Performance Optimisation: Analyse and optimise RF system performance in terms of power, efficiency, and signal integrity.
• Troubleshooting & Debugging: Identify and resolve issues related to RF systems and components, including interference, signal loss, and network coverage issues.
• Collaboration: Work closely with other engineering teams (hardware, software, and systems engineering) to ensure seamless integration of RF technologies into products and solutions.
• Compliance & Standards: Ensure all RF designs comply with industry standards and regulatory requirements (e.g., FCC, CE, ETSI).
• Documentation: Maintain comprehensive documentation of RF designs, test results, and reports for internal and external stakeholders.

Requirements:

• A qualification in Electrical Engineering, Telecommunications, or a related field.
• Previous experience in RF engineering, with a solid understanding of RF design and testing is essential for this role.
• Proficiency in RF simulation software (e.g. Matlab).
• Experience with RF testing equipment (e.g. spectrum analysers,  network     analysers).
• Knowledge of wireless communication technologies (e.g. LTE, 5G, Wi-Fi).
• Familiarity with RF circuit design, including amplifiers, filters, and antennas (especially array antennas).

Preferred Qualifications:

• Experience with antenna design and optimisation.
• Familiarity with PCB layout and design for RF circuits.
• Experience in RF system optimisation and troubleshooting in real-world environments.

In addition to salary, we offer:

• Rewarding Excellence: Benefit from our short-term incentive plan that rewards your hard work and dedication.

• Enjoy Your Time Off: Benefit from 25 days of holiday to relax and recharge.

• Stay Healthy: We’ve got your health covered with private medical insurance, along with dental and optical cash back.

• Secure Your Future: Take advantage of our personal pension plan to ensure a comfortable retirement.

• Peace of Mind: Our income protection and life assurance schemes are there to support you when you need it most.

• We Care About You: Our employee assistance programme is always available to provide the support you need.

• Perks Galore: Enjoy a range of employee discounts via Perkbox, because you deserve a treat!

• Go Green: Join our cycle to work scheme or take advantage of our car salary sacrifice scheme. It’s all about making your commute easier and more sustainable

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