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Software HMI Engineer



Farnborough, UK
Posted on Friday, June 7, 2024
Product R&D · Farnborough · Hybrid Remote

Software HMI Engineer

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 at 60,000 feet, powered by sunlight and flying for months above traditional air traffic. That's us, AALTO’s Zephyr, the unrivalled pioneers of High-Altitude Platform Station (HAPS) technology. 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 looking for a HMI Software Engineer to join AALTO HAPS in our Farnborough site, where you will be part of a software team continuing development and maintenance of Zephyr Ground Control Software.

The successful candidate will be responsible for working within a team environment and assisting with delivering all stages of the design and development of the ground control software, from identifying requirements, through design, programming, deployment, and ongoing maintenance.

There will be a particular technical emphasis on the ground station software.


  • Actively work with the Team Leader to analyse and derive requirements from stakeholder needs or upper- level requirements, over the successive system decomposition levels.

  • Provide support with defining or amending requirements in compliance with quality criteria, avoiding over- and under- specification.

  • Assist and Determine specificities of interface requirements.

  • Facilitate in the Definition and justify the requirements allocation to the given system elements taking into account the architectural interfaces and constraints, (e.g. requirements constraining system architecture), ensuring requirements traceability.

  • Assist with requirement changes, including impact analysis and requirements baseline establishment.

  • Implement design documents and software changes, including new and expanded functionality.

  • Ensure software meets requirements, comply with coding standards and unit test code modules using available test tools to determine static analysis of code implemented.

  • Production of documentation: including design documents, user manuals and operator training materials.


  • We appreciate that not everyone will have all the skills/experience listed below, and would welcome applications even if you do not meet all the requirements.

  • Experience working with software development teams through the software development lifecycle. (SDLC)

  • PC application development using Windows and other RTOS.

  • HMI application development. Model driven VAPS or SCADE Display.

  • Experience of Human Factors would be useful.

  • Knowledge of OpenGL would be useful.

  • Requirements, design and software process documentation.

Other Useful skills and experience:

  • Experience in aviation, particularly ground control systems would be an advantage.

  • MISRA C or C++ Coding standard

  • Experience applying RTCA DO-178, DO-278, DefStan55 experience preferred.

  • Doors experience, UML.

  • Subversion SVN experience (source control).

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

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.


Product R&D
Remote status
Hybrid Remote
Contact Carla Monteiro


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.

Founded in 2022
Co-workers 190+
Product R&D · Farnborough · Hybrid Remote

Software HMI Engineer

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