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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.
 
They require a Senior Systems Engineering Specialist – Communication Systems to play a crucial role in developing a revolutionary end-to-end satellite communication system. You’ll collaborate with experts across disciplines to design and define their system’s architecture.
 
Key Responsibilities for the Senior Systems Engineering Specialist – Communication Systems:

• Collaborate with cross-functional teams to define system architecture, system requirements, and network element specifications.
• Craft key aspects of the system, including communication protocols, resource allocation mechanisms, network entry mechanisms, management systems, and more.
• Lead and guide junior engineers, fostering their growth and expertise.
• Document the system architecture comprehensively for optimal performance and reliability.
• Collaborate with the System Integration and Test team for seamless integration of all system elements.
• Identify and manage technical risks related to the system design and develop mitigation strategies to stay ahead of industry trends.
• Contribute innovative ideas and collaborate with external partners for project success.

Key Education & Experience for the Senior Systems Engineering Specialist – Communication Systems: 

• Bachelor’s, Master’s, or Ph.D. degree in Electrical Engineering, Aerospace Engineering, or a related field.
• Proven experience in satellite system architecture and design.
• Strong experience in Payload technology, and Radio Frequency (RF) engineering.
• Strong knowledge of satellite communication protocols, orbital mechanics, and space systems. Ideally with experience in software-defined satellite communication payloads.
• Familiarity with regulatory bodies and space industry standards.
• Must be a US or Canadian Citizen.

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 Senior Systems Engineering Specialist – Communication Systems opportunity, we encourage you to apply now!

Are you a systems engineering professional looking to work on mission-critical aerospace systems? We’re hiring a Senior Systems Engineer to join a high-performing team developing advanced release systems used across some of the world’s most prominent military aircraft platforms.

This role offers the opportunity to work across the full system lifecycle, from concept through to design, integration, and in-service support, on projects that directly support national and global security operations.

What You’ll Be Doing:

• Lead systems engineering activities, from technical planning and requirements management to verification and validation.
• Analyse system performance across concept, design, testing, installation, and operations phases.
• Collaborate cross-functionally with stakeholders to interpret operational needs and translate them into system requirements.
• Conduct trade studies, requirements allocation, and interface definitions.
• Support complex project and task management across multidisciplinary teams.
• Help shape operational documentation and ensure engineering solutions meet technical, schedule, and cost expectations.

What You’ll Bring:

• Degree in Engineering or a related discipline (or equivalent industry experience).
• 6+ years’ experience in systems engineering, with knowledge of the full development lifecycle.
• Strong background in requirements management and systems architecture.
• Skilled in documentation, reporting, and technical communications.
• Experience with tools like DOORS, Innoslate, or equivalent.
• Awareness of CAD, CFD, and FEA tools and regulatory compliance processes (e.g. MAA, DAOEs) is an advantage.
• Comfortable providing mentoring or coaching to less experienced engineers.

Desirable Experience:

• Background in aerospace, defence, or mission-critical system environments.
• Exposure to IPS/ILS (Integrated Product or Logistics Support).
• Experience in supporting Certificate of Design and regulatory approvals.

Why Join?

• Half-day Fridays for better work-life balance
• 25 days annual leave (plus bank holidays), increasing with service
• Private medical insurance (with optional family cover)
• Up to 7% employer pension contribution
• Life assurance, group income protection, and a flexible benefits platform including gym membership, dental, critical illness cover, and cycle-to-work
• Access to an employee assistance programme for mental health and wellbeing

Eligibility Requirements:

Please note: Due to the nature of the work, UK right-to-work and eligibility for BPSS clearance is required.

This is an exciting opportunity to work on cutting-edge systems that make a real impact. If you’re ready to take on a senior technical role with hands-on influence and strategic oversight, we want to hear from you.

Apply now to join a team shaping the future of aerospace technology.

Are you ready to shape the future of cutting-edge Electronic Warfare and Radar systems? Our partner are growing their systems engineering capability and currently hiring at multiple levels – Senior, Lead, and Principal Systems Engineers – to support the development of advanced defence technologies.

Join a collaborative, multidisciplinary team driving the development of next-generation electronic systems and contribute across the full engineering lifecycle, from requirements definition to system verification.

UK citizenship and eligibility for full security clearance required.

What You’ll Be Doing:

• Define and manage system and sub-system requirements using industry-standard tools (e.g., DOORS)
• Develop and implement requirements management and verification plans
• Ensure traceability from high-level system requirements to sub-system level
• Support the generation and review of verification evidence and compliance documentation
• Collaborate across disciplines including software, hardware, and systems teams
• Contribute to the design and integration of advanced RF, radar, and electro-optic systems

What You’ll Bring:

• Proven experience in systems engineering across the full lifecycle
• Strong skills in requirements definition, flow-down, and verification
• Expert-level or proficient in DOORS and requirements configuration
• Familiarity with engineering tools such as Atlassian suite, Cameo Systems Modeler, or MATLAB
• Understanding of EW, RF, Radar, or electro-optical system design
• Excellent communication skills and ability to work effectively across engineering teams

Opportunities Across Levels:

• Senior Systems Engineers – Contribute technically and support project delivery
• Lead Systems Engineers – Provide technical direction and mentor junior staff
• Principal Systems Engineers – Drive system architecture, strategy, and technical leadership

Join a team at the forefront of defence technology innovation, where you can take ownership of challenging projects, collaborate with experts, and grow your career at the level that suits your experience.

Apply today and be part of building tomorrow’s defence capabilities.

Opportunities at multiple UK sites (hybrid working): Somerset, Midlothian, Lincolnshire, Essex, Hampshire, Gloucestershire, Tyne and Wear.

Are you ready to shape the future of cutting-edge Electronic Warfare and Radar systems? Our partner are growing their systems engineering capability and currently hiring at multiple levels – Senior, Lead, and Principal Systems Engineers – to support the development of advanced defence technologies.

Join a collaborative, multidisciplinary team driving the development of next-generation electronic systems and contribute across the full engineering lifecycle, from requirements definition to system verification.

UK citizenship and eligibility for full security clearance required.

What You’ll Be Doing:

• Define and manage system and sub-system requirements using industry-standard tools (e.g., DOORS)
• Develop and implement requirements management and verification plans
• Ensure traceability from high-level system requirements to sub-system level
• Support the generation and review of verification evidence and compliance documentation
• Collaborate across disciplines including software, hardware, and systems teams
• Contribute to the design and integration of advanced RF, radar, and electro-optic systems

What You’ll Bring:

• Proven experience in systems engineering across the full lifecycle
• Strong skills in requirements definition, flow-down, and verification
• Expert-level or proficient in DOORS and requirements configuration
• Familiarity with engineering tools such as Atlassian suite, Cameo Systems Modeler, or MATLAB
• Understanding of EW, RF, Radar, or electro-optical system design
• Excellent communication skills and ability to work effectively across engineering teams

 
Opportunities Across Levels:

• Senior Systems Engineers – Contribute technically and support project delivery
• Principal Systems Engineers – Drive system architecture, strategy, and technical leadership
• Lead Systems Engineers – Provide technical direction and mentor junior staff

Join a team at the forefront of defence technology innovation, where you can take ownership of challenging projects, collaborate with experts, and grow your career at the level that suits your experience.

Apply today and be part of building tomorrow’s defence capabilities.

Are you ready to lead and inspire the next generation of engineers while solving complex infrastructure challenges? We’re looking for a Systems Engineering Lead to join a high-performing team working on critical facilities and infrastructure projects.

In this role, you’ll mentor and guide a small team of junior and graduate engineers, applying systems thinking principles to real-world problems. You’ll act as a technical leader, providing oversight, shaping project scope, facilitating stakeholder engagement, and ensuring quality delivery across the project lifecycle.

What You’ll Be Doing:

• Lead and support a team of junior systems engineers, offering coaching and technical guidance
• Apply practical systems engineering in the context of infrastructure and facilities maintenance
• Ensure effective project scoping, requirements capture, and problem definition
• Represent the systems engineering function in customer-facing engagements
• Review and develop technical documents: requirements sets, interface definitions, V&V plans, etc.
• Integrate systems engineering into broader project and design assurance processes
• Drive continuous improvement of tools, templates, and systems engineering practices

What We’re Looking For:

• A degree in Mechanical Engineering or related field (Master’s or working toward CEng status preferred)
• 5+ years’ experience in systems engineering within a regulated industry (e.g. aerospace, defence, infrastructure)
• Solid understanding of systems engineering across the full lifecycle
• Confident communicator with stakeholder management experience
• Proven mentorship or team leadership capabilities
• Strong analytical skills and a structured approach to complex challenges

Desirable Skills:

• Familiarity with INCOSE SE Handbook or defence systems standards
• Exposure to MBSE, SysML or similar modelling tools
• Knowledge of IBM DOORS
• Understanding of digital twin or BIM integration
• Experience in maintenance planning or asset management systems

Additional Information:

You must be a UK National and eligible for Security Clearance to be considered for this role.

If you’re passionate about solving real-world engineering problems and growing your career in systems leadership, we’d love to hear from you.

Are you a systems engineer looking to work on cutting-edge aerospace technologies? This is an opportunity to join a high-performing engineering team developing mission-critical release systems for some of the world’s most advanced fighter aircraft.

The role spans the full systems lifecycle, from design and development to testing, integration, and support, with a focus on high-performance multi-station munitions launch systems.

What You’ll Be Doing:

• Perform systems engineering tasks including technical planning, integration, risk analysis, and verification/validation across complex aerospace products.
• Contribute to the full development cycle: concept, design, fabrication, testing, installation, operation, and maintenance.
• Translate customer and product requirements into robust system solutions, managing trade studies and requirements allocation.
• Engage with stakeholders to ensure alignment across technical, schedule, and cost considerations.
• Support day-to-day task execution, project activities, and the delivery of system-level documentation.
• Work collaboratively to interpret operational needs and guide engineering outcomes.

What You’ll Bring:

• Degree in engineering (or equivalent industry experience).
• 4+ years’ relevant experience (or 8+ years without a formal degree).
• Practical knowledge of systems engineering lifecycle and aerospace system development.
• Experience using requirements management tools (e.g., DOORS, Innoslate) preferred.
• Awareness of CAD, CFD, and FEA tools is a plus.
• Strong communication and stakeholder engagement skills.

Desirable Experience:

• Exposure to IPS/ILS (Integrated Product or Logistics Support) disciplines.
• Background in defence or safety-critical engineering environments.

Benefits Include:

• Half-day Fridays for improved work-life balance
• 25 days annual leave (+ bank holidays), increasing with service and with buy/sell options
• Private medical insurance (with optional family cover)
• Pension scheme with up to 7% employer contribution
• Life assurance, group income protection, and a flexible benefits platform including gym membership, dental, critical illness cover, and cycle-to-work
• Mental health and wellbeing support via employee assistance programme

Eligibility Requirements:

Please note: Due to the nature of the work, UK right-to-work and eligibility for BPSS clearance is required.

This is your chance to play a key role in the development of next-generation aerospace systems, in a team that values innovation, collaboration, and technical excellence.

Apply now to be part of a team pushing the boundaries of aerospace engineering.

An exciting opportunity has arisen for a skilled Senior Service Engineer to join a leading provider of maritime electronics, supporting vessels across the ARA region. This role offers the chance to work on advanced navigation and communication systems while mentoring junior engineers and contributing to the technical growth of the team.

You’ll be responsible for the installation, maintenance, and repair of maritime navigation and communication systems onboard vessels. In addition, you’ll guide and support junior engineers, ensuring high-quality service delivery and technical excellence.

Key Responsibilities:

• Perform planned equipment checks, maintenance, Radio Surveys, and VDR APTs in line with IMO and Class Authority standards
• Carry out refit and retrofit jobs, including commissioning and participation in sea trials
• Mentor and support Junior Engineers to develop technical skills
• Drive high first-time fix rates and maintain productivity targets
• Act as a technical advisor to customers, supporting sales where required
• Collaborate with the wider technical team to share knowledge and best practices
• Stay updated through regular training on new technologies

Requirements:

• Minimum 5 years’ experience with maritime navigation and communication systems
• Strong mentoring and leadership capabilities
• Product knowledge of leading navigation and communications brands
• Basic understanding of ship networks
• Excellent problem-solving, communication, and customer service skills
• Fluent in Dutch and English (verbal and written)
• Proactive, flexible, and able to travel within the ARA region
• Valid Passport and Driver’s Licence (VCA and IRATA certifications preferred)
• LRC or GOC radio licence is an advantage

What’s on Offer:

• A dynamic, international working environment with strong development opportunities
• Flat organisational structure with direct communication lines
• Supportive, down-to-earth team culture
• Continuous technical training and certifications in maritime systems
• Access to learning and technical academies
• Competitive benefits including company car, smartphone, laptop, pension scheme, sports allowance, and team events

If you’re ready to take your maritime engineering career to the next level, apply now and become part of an innovative and growing team supporting vessels worldwide.

A leading provider of maritime navigation and communication solutions is seeking a Service Engineer to join their growing team in Rotterdam. This is a fantastic opportunity to work on cutting-edge maritime systems and play a key role in supporting vessels operating across the ARA region.

In this hands-on position, you will be responsible for installing, maintaining, and repairing maritime navigation and communication systems onboard vessels.

Key Responsibilities:

• Perform planned equipment checks, maintenance, Radio Surveys, and VDR APTs in line with IMO and Class Authority standards
• Carry out retrofit and installation projects, including commissioning and participation in sea trials
• Ensure a high first-time fix rate and maintain productivity targets
• Share knowledge across the team and support local management with insights for continuous improvement
• Participate in technical training on new maritime technologies

What We’re Looking For:

• Minimum 3 years’ experience in installing and maintaining maritime navigation and communication systems
• Product knowledge of leading navigation and communications brands
• Basic understanding of ship networks
• Excellent problem-solving, analytical, and customer service skills
• Fluent Dutch and English communication skills (written and verbal)
• Flexible, proactive, and willing to travel across the ARA region
• Valid Passport and Driver’s Licence (VCA/IRATA certification preferred)
• LRC or GOC radio licence is an advantage

What’s On Offer:

• A dynamic, international work environment with clear development opportunities
• Informal, no-nonsense team culture with a supportive atmosphere
• Continuous technical training and certification in maritime systems and regulations
• Company car, laptop, smartphone, and participation in an extensive pension scheme
• Free access to online learning platforms and training academies
• Sports allowance and regular team events

If you have a passion for maritime technology and want to take your technical expertise to the next level, apply now and join a fast-growing team in an evolving industry.

An exciting opportunity is available for an experienced Systems Test Engineer to support the development of cutting-edge phased array antenna technology for both airborne and land-mobile applications. This role offers the chance to work with highly complex systems that integrate RF subsystems, communications chains, power and control electronics, HW/SW integration, and mechanical structures. You’ll work in a multidisciplinary, international environment with a strong focus on continuous improvement.

Key Responsibilities:

• Develop and implement system verification strategies, test plans, procedures, and reports
• Create and maintain automated test scripts to improve testing processes
• Execute manual and automated test cases, analyse results, and report issues
• Collaborate with design teams to reproduce and resolve technical problems
• Ensure system testing strategies meet technical and customer requirements
• Document testing phases, defects, and contribute to improving processes
• Assess system performance under varying conditions, including stress and scalability testing
• Ensure compliance with relevant industry standards and regulatory requirements
• Stay up to date with testing tools and methodologies to enhance effectiveness
• Provide feedback to improve product design, functionality, and performance
• Participate in review meetings to present test results to project stakeholders

Requirements:

• MSc in Engineering (Telecommunications, Electronics, Automation, Microtechnology, or related fields)
• Experience or strong interest in active Antenna, RF, and Digital Systems
• Previous industry experience, particularly with airborne applications, is highly desirable
• Swiss or EU (27) citizenship

Beneficial Experience:

• High-level system test verification, serving as the primary technical point of contact
• Stakeholder collaboration across internal and external teams
• Supplier engagement and coordination
• Experience with space or airborne system testing
• Knowledge of 5G technologies

This is an excellent opportunity for a motivated engineer to contribute to the development of advanced RF and antenna systems in a dynamic and innovative environment.

A leading provider of maritime navigation and communication solutions is seeking a Service Engineer to join their growing team in Rotterdam. This is a fantastic opportunity to work on cutting-edge maritime systems and play a key role in supporting vessels operating across the ARA region.

In this hands-on position, you will be responsible for installing, maintaining, and repairing maritime navigation and communication systems onboard vessels.

Key Responsibilities:

• Perform planned equipment checks, maintenance, Radio Surveys, and VDR APTs in line with IMO and Class Authority standards
• Carry out retrofit and installation projects, including commissioning and participation in sea trials
• Ensure a high first-time fix rate and maintain productivity targets
• Share knowledge across the team and support local management with insights for continuous improvement
• Participate in technical training on new maritime technologies

What We’re Looking For:

• Minimum 3 years’ experience in installing and maintaining maritime navigation and communication systems
• Product knowledge of leading navigation and communications brands
• Basic understanding of ship networks
• Excellent problem-solving, analytical, and customer service skills
• Fluent Dutch and English communication skills (written and verbal)
• Flexible, proactive, and willing to travel across the ARA region
• Valid Passport and Driver’s Licence (VCA/IRATA certification preferred)
• LRC or GOC radio licence is an advantage

What’s On Offer:

• A dynamic, international work environment with clear development opportunities
• Informal, no-nonsense team culture with a supportive atmosphere
• Continuous technical training and certification in maritime systems and regulations
• Company car, laptop, smartphone, and participation in an extensive pension scheme
• Free access to online learning platforms and training academies
• Sports allowance and regular team events

If you have a passion for maritime technology and want to take your technical expertise to the next level, apply now and join a fast-growing team in an evolving industry.