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Holt Executive are partnered with a leading Design and Manufacturing business that specialises in electro-optics and supply into a variety of markets across the globe.

They have an immediate requirement for an experienced Systems Engineer to assist in all phases across the complete systems engineering lifecycle. This will include requirement capture, system architecture design and verification/validation activities. 

Key Responsibilities for the Systems Engineer:

• Undertaking the requirement specification, architectural design, verification and validation of systems on projects.
• Development of system requirements from high-level customer requirements to sub-system and component-level requirements.
• Manage compliance against statutory regulations and defence standards.
• Applying practical skills in design techniques for defence and commercial applications, understanding key process tools and technologies.
• Producing block diagrams, detailed design drawings and supporting calculations
• Practical evaluation of new and emerging technologies
• Working closely with the wider engineering team to manage design changes and solve problems on complex systems.
• Work with customers to assist integration, commissioning and problem resolution activities
• International and Domestic travel will be required

 
Key Skills & Experience for the Systems Engineer:

• A strong academic background with a degree in a relevant engineering discipline is required.
• Proven technical knowledge of the systems engineering lifecycle, including requirements management, system design process (including system and sub-system specification) and product validation and verification.
• Previous experience of Naval or Military Systems is desired.
• Excellent Relationship Management
• Complex problem solving with the ability to produce clear and concise technical documentation and evidence system-level thinking
• A working knowledge of IP networks would be beneficial.

 
Company Benefits:

• Group Pension Plan – up to 4% matched employer contributions.
• Income Protection Scheme and Employee Assistance Programme.
• Employee Help@Hand Service gives you and your family access to 4 key services including; remote GP service, second opinion, mental health pathway service, physiotherapy consultations.
• Life Assurance Policy, including Bereavement Counselling and Probate Helpline.
• Company Share Incentive Plan and Save as you Earn Scheme.
• Group Electric Vehicle Salary Sacrifice Scheme.
• Wellbeing initiatives, including access to Aviva Wellbeing App and the addition of mental health support for all employees plus regular activities across our sites to support and promote wellbeing.
• Regular Sports and social activities.
• Employee discounts scheme (inc access to an additional wellbeing hub).
• Recruitment recommendation bonus.
• Excellent Learning & Development opportunities.
• Great working environment with free, onsite car parking across all our locations.

Holt Executive are partnered with a Silicon Valley based company that continues to solve communication and connectivity challenges for the US government.

Having already delivered a radio that connects with GEO satellites 23,000 miles away, opening a new form of real-time and reliable connectivity from anywhere, they are now working on a robust geolocation alternative to GPS.

Our partner is seeking a Systems Engineering Manager with experience in communication systems to play a vital role in growing and supporting a small team of Systems Engineers.

Key responsibilities for the Systems Engineering Manager:

• Management of a small systems engineering team, including performance management, development actions, resource allocation and technical oversight.
• Review workload requirements and assign team members to projects.
• Produce and deploy skills development plans for your team.
• Support system / subsystem trade-offs where necessary.
• Providing technical leadership and oversight.
• Supporting with a wide range of systems engineering activities.
• Supporting with system design and architecture.

Key Skills & Experience Required by the Systems Engineering Manager:

• Experience in radio communications (Radar, CDMA, RF receivers etc).
• Experience in managing and developing systems engineering teams.
• Experience within the Space/Satellite/Satellite Communications industries.
• A proven track record of developing a high performing team of systems engineers.
• Experience working with GNU radios, or other Software Defined Radio Systems is desired.
• C++ development skills is desired.
• Some knowledge of GNSS signal processing, and digital signal processing math is desired.
• Real-time embedded systems, and/or FPGA development is desired.
• A keen interest in building something that has never been built before.

This role is based onsite in Palo Alto, California.

If your skills and experience match this Systems Engineering Manager opportunity, we encourage you to apply now!

Holt Executive are partnered with a Silicon Valley based company that continues to solve communication and connectivity challenges for the US government.

Having already delivered a radio that connects with GEO satellites 23,000 miles away, opening a new form of real-time and reliable connectivity from anywhere, they are now working on a robust geolocation alternative to GPS.

Our partner is seeking a Senior Systems Engineer with experience in Communications to play a vital role in modeling, prototyping, and demonstrating the prototype system for this new product.

Key responsibilities for the Senior Systems Engineer:

• Work cross-functionally to prototype hardware using software-defined radios.
• System design.
• Defining systems requirements, and managing requirements.
• Demonstrate prototype systems.

Key Skills & Experience Required by the Senior Systems Engineer:

• Experience in radio communications systems (Radar, CDMA, RF receivers etc).
• Experience working with GNU radios, or other Software Defined Radio Systems is desired
• Some C++ development skills.
• Knowledge of GNSS signal processing, and digital signal processing math is desired.
• Real-time embedded systems, and/or FPGA development is desired.
• A keen interest in building something that has never been built before.

This role is based onsite in Palo Alto, California.

If your skills and experience match this Senior Systems Engineer opportunity, we encourage you to apply now!

Holt Executive are partnered with a US based new space company who in a joint venture with their European counterparts, are looking to enter the satellite manufacturing business.

Officially founded in 2024, this venture is a significant milestone in the group’s strategic expansion. Backed by over 170m Dollars raised in 2024, this venture is poised to launch their first satellites in 2025.

We have an exciting opportunity for a Satellite Systems Engineer with vast experience in Communication Payloads to play a crucial role in managing and optimizing satellite payload communication systems.
 
Key Skills & Experience Required by the Satellite Systems Engineer: 

• Vast experience and knowledge in satellite communication systems, radio frequency engineering, and signal processing.
• Experience and knowledge with payload communication protocols, data links, and modulation schemes.
• An understanding of satellite communication standards such as CCSDS.
• Strong understanding of antenna systems, frequency bands, and propagation models.
• Experience and expertise in software-defined radios (SDR) and networking protocols.
• A Bachelor’s degree in Electrical Engineering, Telecommunications, or a related field.
• Excellent problem-solving and analytical skills.
• Ability to work effectively in a team and communicate technical concepts clearly.
• US Citizenship.

 
This opportunity is a hybrid position, based in Boulder, Colorado.
 
If your skills and experience match this Satellite Systems Engineer opportunity, we encourage you to apply by sending your CV now!

Holt Executive are partnered with a leading Global Satellite and Space leader that provides reliable and secure satellite-delivered voice and high-speed data communications solutions to broadcast, telecommunications, corporate and government customers worldwide. They are now developing a LEO constellation that will revolutionize global broadband connectivity for enterprise.
 
Our partner is seeking a Systems Engineer with experience in User Terminals/Modems to play a vital role in in the design and development of next-generation satellite user terminals.
 
The successful Systems Engineer will ensure the successful integration and development of modem architectures within their satellite communication system.
 
Key Responsibilities for the Systems Engineer:

• Oversee the design, development, and optimization of Modem architecture designs ensuring they meet performance, cost, and reliability targets.
• Drive trade-space discussions in terms of modem performance, with network features and MEF service performance in mind.
• Collaborate with cross-functional engineering teams (FPGA, RF, Software, Hardware) to ensure that integration of the modem with other terminal components is seamless.
• Developing and implementing signal processing algorithms (including modulation, demodulation, error correction, and data compression).
• Performance analysis, and test reviews of modem designs, including link budget analysis.
• Ensure compliance is met with relevant industry standards (DVB-S2, DVB-RCS, 3GPP).
• Lead the development and testing of prototypes.
• Work with third-party vendors, manufacturers, and a cross-functional engineering and product team to ensure cohesion with the system design.  
• Ensure detailed documentation for technical specifications, design guidelines, and test planning.

 
Key Skills & Experience for the Systems Engineer: 

• A Bachelor’s or Master’s degree in Electrical Engineering, Telecommunications, Computer Science, or a related field.
• 6+ years of experience in satellite communication systems, modem design, and ideally FPGA design and signal processing.
• Strong knowledge of digital communication systems, including modulation techniques, error correction methods, and RF systems.
• Proficiency with design and simulation tools such as MATLAB, Simulink, or similar. Experience with DSP programming is a plus.
• Experience with making trade-offs between performance and cost at the component and the system level.
• Experience with the full lifecycle of hardware and modem designs – from inception, design, production, and fielding.

 
The successful candidate must be able to work in Canada and obtain Reliability Clearance.

This opportunity offers a hybrid work model with 4 days in the office per week and occasional travel is anticipated.
 
If your skills and experience match this Systems Engineer opportunity, we encourage you to apply now!

Holt Executive are currently partnered with a global leader in Space Sustainability, a dynamic and rapidly growing technology innovator who are making hugely positive contributions to the growing problem of orbital space debris.

They require a Space Systems Engineering Manager to lead a highly talented, passionate team on all space system engineering activities. This role will have overarching management responsibility for the spacecraft systems team; ensuring everyone works together to deliver appropriate solutions, to schedule and cost, across all projects.

The company are fast-growing, and you will have the platform to expand on your experience and develop your skills further to enable your team to deliver amazing results and make a difference every day, by driving missions forward.
 
Responsibilities for the Space Systems Engineering Manager: 

• Leadership and technical mentoring to the systems engineering group.
• Line management of Systems Team Leads.
• Manage hiring on a permanent and temporary basis, including outsourcing etc.
• Review scoping and costing for new project work packages.
• Review and communicate work package, and other plans, within the group and to Project Managers, including any technical or schedule risks.
• Ensure the quality of standards and procedures within the Systems Group.
• Define, map and propose relevant processes and procedures.
• Provide input and guidance to the technology roadmap for Systems.

Essential Skills required by the Space Systems Engineering Manager:

• Bachelor’s or Master’s degree in relevant engineering or scientific discipline.
• Excellent knowledge of systems engineering standards and space industry standards.
• The ability to appropriately tailor and adapt standard engineering practises to a lean and fast-paced engineering development environment.
• Working technical knowledge of various space- and ground- segment subsystems and specialist functions, particularly orbital mechanics and AOCS/GNC.
• 10+ years’ experience of systems engineering within the commercial space industry.
• 5+ years’ recent experience in a line management role.
• Experienced and enthusiastic people manager, with a focus on leading and building strong teams, able to put the team and plan interests first.

 
Benefits

• Flexible working around core hours in a friendly and supportive environment.
• Hybrid working available.
• Optional (9-day working fortnight).
• 25 days holiday (increasing yearly up to a maximum of 28 days) + 8 days Bank Holiday.
• Life insurance and long-term sick pay.
• Private healthcare.
• Relocation allowance.
• Visa sponsorship for employees considered.
• New state of the art office and cleanroom facility.

If your skills and experience match this Space Systems Engineering Manager opportunity, we encourage you to apply now.

Robotic System Engineer

An experienced and motivated robotics system engineer with a strong background in space, aerospace, or other technical industries is sought for this exciting opportunity at a state-of-the-art facility based in Harwell, UK.

This role offers the chance to join a friendly, skilled, and dynamic team within a rapidly growing organization. As a senior member of the payload team, you will lead specific aspects of project work, mentor team members, and provide subject matter expertise to support the design, development, testing, and operations of unique capture systems for missions under demanding timescales. Collaboration across engineering functions and suppliers globally is a key aspect of this role.

In this position, you will contribute to addressing the critical challenge of orbital debris, working to ensure space remains a valuable asset for humanity.

Responsibilities

• Develop and review robotics system requirements and verification strategies (at spacecraft, subsystem, and unit levels) for on-orbit servicing missions.
• Review inputs from and lead co-engineering sessions with robotics suppliers to assess system suitability for specific missions and ensure compatibility.
• Plan and support the design of innovative technology and hardware, including unit modules and ground support equipment, to meet mission requirements.
• Collaborate with experts in other engineering disciplines (mechanical, thermal, software, electrical, etc.) to solve complex problems.
• Work with the AIV team to ensure robotics designs consider manufacturing, assembly, integration, and testing ease.
• Define and perform hardware-related activities throughout spacecraft design, development, AIV phases, and launch campaigns.
• Generate and maintain systems documentation, including specifications, ICDs, procedures, reports, technical notes, and design descriptions.
• Prepare inputs for project lifecycle reviews (e.g., PDR, CDR).
• Support procurement by engaging with the manufacturing supply chain and suppliers.
• Contribute to broader organizational projects and activities.

Essential Skills

• Degree in robotics, systems engineering, aerospace engineering, or another relevant discipline (Bachelor’s, Master’s, or equivalent).
• 5–10+ years of robotics experience.
• Proven experience in leading complex, safety-critical mechanism design lifecycles from concept through analysis, testing, and operations.
• Professional experience in robotics analysis, design/procurement, and testing, ideally for spacecraft.
• Deep understanding of robotics design and its challenges in the space environment.
• Knowledge of trade-offs in robotics system design, selection, and application.
• Familiarity with robotics suppliers, products, and R&D trends.
• Understanding of spacecraft mission lifecycles and milestones (e.g., MDR, PDR, CDR).
• Strong system engineering skills and requirements management experience across full project lifecycles.
• Expertise in designing innovative hardware and solving complex engineering problems under tight schedules.

Desirable Skills

• Experience addressing robotics design challenges in the space sector.
• Knowledge of manipulator technologies for on-orbit servicing.
• Familiarity with magnetism and magnetic properties in capture mechanisms.
• Experience using CAD tools such as SolidWorks, CATIA, NX, CREO, or similar, and PDM.
• Proficiency in multi-body dynamics modeling tools like Hyperworks.
• Ability to model and simulate kinematic systems and robotics.
• Skills in data processing and automation using VBA or Python.
• Broad knowledge of topics like debris removal, end-of-life missions, and in-orbit servicing.
• Proactive mindset with the ability to clarify objectives, manage changes, and apply sound engineering judgment in uncertain situations.
• Leadership and management experience.

Benefits

• Competitive salary.
• Work with a diverse, talented international team using cutting-edge technology.
• Flexible working arrangements around core hours.
• Hybrid working options (role-dependent).
• 25 days holiday (increasing up to 28 days) plus 8 bank holidays.
• Life insurance and long-term sick pay.
• Private healthcare (taxable benefit).
• Relocation allowance.
• Visa sponsorship available (UK only).
• Access to modern office and cleanroom facilities.
• Regular social events.

Holt Executive are partnered with a global leader in Space sustainability, a dynamic and rapidly growing technology innovator who are making hugely positive contributions to tackle the growing problem of orbital space debris.

They require a Senior Ground Systems Engineer to be involved in the whole ground segment development process, from conceptual design to maintenance, playing a key role by interfacing with the Mission Systems and Operations teams.

The company offers hybrid working and flexible hours, and you will join a team of highly talented engineers working on cutting edge technology, in their state-of-the-art office and cleanroom facility in Oxford.

Visa sponsorship and relocation package can be offered for this role.

Responsibilities for the Senior Ground Systems Engineer:

• Participate in/lead the development of ground systems including Mission Control System, Mission Planning System, Ground Stations Interface System.
• Derive requirements for the ground segment.
• Interface with the external suppliers’ teams acting as a Product Owner or Technical Officer and provide support to the development team during the ground segment development phase.
• Produce and maintain project documentation to good standard including requirements, verification and validation plan, test procedures, test reports, etc.
• Perform verification & validation of the systems with other team members.

 
Skills and Experience required by the Senior Ground Systems Engineer:

• University degree in Computer Science, Telecommunications, or other relevant engineering discipline.
• 5+ years of industry experience in satellite ground systems engineering.
• Good knowledge of the main components of a ground segment (for example, mission control system, mission planning system).
• Good knowledge of Requirements Engineering, system integration, verification and validation.

 Benefits:

• Relocation package and visa sponsorship (if applicable)
• Flexible working around core hours
• Hybrid working
• 25 days holiday (increasing yearly up to a maximum of 28 days)
• Life insurance and long-term sick pay
• Private healthcare

If your skills and experience match this Senior Ground Systems Engineer  opportunity, we encourage you to apply by sending your CV now! 

Holt Executive is partnered with a leading electro-optics design and manufacturing business, seeking a highly skilled Senior Software Engineer to join their innovative team, supporting cutting-edge video and imaging processing products.

Key Responsibilities for Senior Software Engineer:
 

• Design, develop, and test application software and Linux drivers for video applications on custom embedded hardware.
• Provide technical support and integration assistance to international customers.
• Develop system specifications, test documentation, and unit tests in a continuous integration environment.
• Fault-find, debug, and resolve issues in complex systems.
• Assist with the administration and successful delivery of engineering projects.
• Continuously improve team procedures and working practices.
• Opportunity to take on team-leading responsibilities if desired.

Key Experience for Senior Software Engineer:
 
Essential: 

• Degree in Computer Science, Electronics, Mathematics, or Physics.
• Proven experience in C++ development for Windows and Linux using Microsoft Visual Studio.
• Expertise in Linux driver development for ARM processors.
• A team player with initiative and adaptability in an Agile environment.
• Strong technical leadership experience.

Desirable:

• Experience in video processing or computer vision algorithms.
• Video streaming application development and HMI development using OpenGL.
• Familiarity with CUDA, OpenCV, and GPU computing technologies.
• Experience interfacing with custom hardware and FPGAs.
• Customer-facing experience.
• Coaching and mentoring abilities to support team talent development.

Why Join? 

• Flexible hours: 37.5-hour week with lunchtime finishes on Fridays.
• Hybrid working: Enjoy the flexibility of remote and onsite work.
• Annual leave: 28 days, plus Christmas closure and a holiday purchasing scheme.
• Pension: Matched contributions up to 5%.
• Wellbeing support: Access to remote GP services, mental health pathways, physiotherapy consultations, and more.
• Professional growth: Excellent learning and development opportunities.
• Additional perks: Electric vehicle salary sacrifice scheme, gym discounts, high street rewards platform, and regular sports/social activities.

Security Clearance

Applicants must be eligible for UK Security Clearance, requiring proof of identity, employment history, and UK residency for at least five years.

Ready to make a difference?

Apply now to join a team where innovation meets impact. Your expertise will drive solutions that are relied upon in critical environments worldwide.

Holt Executive are partnered with a prominent aviation technology pioneer, providing market-leading products to some of the biggest names in commercial aviation.

Our partner is seeking UK CAA Licensed CAT A, B1 OR B2 Aircraft Engineers on a permanent basis to join their team at Heathrow. 

The UK CAA Licensed CAT A, B1 OR B2 Aircraft Engineers will leverage their expertise to perform comprehensive aircraft maintenance, both inside and outside the cabin. This includes maintaining In-Flight Entertainment Systems and ensuring all modifications comply with strict UK CAA regulations.

Salary – Upto £62.9k depending on license type + £5k to £8k towards license maintenance + £6150 shift allowance. 

Key Responsibilities for the UK CAA Licensed CAT A, B1 OR B2 Aircraft Engineers:

• Perform built-in test (BIT) and manual test of IFE systems.
• Troubleshoot electronic units, cabling or seat consoles in which failures occur down to the line replaceable modules, using knowledge of electronic theory.
• Identify necessary repairs to restore functional acceptance, which may require replacing defective line replaceable modules and/or cabling.
• Perform maintenance checks on Customer aircraft for various airlines.
• Operate a vehicle on airport property and around aircraft.
• Operate airline communications equipment.
• Communicate and interface with customers.
• Document the testing and repairs using computer and bar-coding equipment.
• Assist in tracking the spare inventory.
• Perform other related duties as assigned by immediate supervisor or upper management.

 Key Skills and Experience Required by the UK CAA Licensed CAT A, B1 OR B2 Aircraft Engineers:   

• Licenses: Must have an A or B1 or B2 license with a Type Rating on (A380, A350, A330, A320, 787, 777, 767)
• Must be able to pass a 5-year background check, extensive security and reference checks for Airside access.
• Must be eligible to live and work in the UK.
• Must have a valid driver’s license.
• General knowledge of fundamental electrical Engineer or related experience acquired through commercial aviation, military experience or technical school education is highly preferred, but not required.
• IFE or avionics experience is highly preferred, but not essential.
• Must have the ability to climb and work from a ladder or platform, and endure sitting, standing, bending or twisting for extended periods.
• Must have the ability to lift up to 50 pounds.
• Ability to operate under extreme weather conditions and in confined spaces for extended periods.
• Ability to read, comprehend and follow instructions, procedures, blueprints, diagrams, and manuals and to comprehend and follow verbal instructions in English.
• Proficient in MS Office Suite.

If your skills and experience match this UK CAA Licensed CAT A, B1 OR B2 Aircraft Engineers opportunity, we encourage you to apply by sending your CV to info@holtexecutive.com