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An exciting opportunity has arisen for an experienced and motivated Ground Segment Systems Engineer to join a fast-growing organisation at the forefront of space technology and mission operations.

In this role, you’ll be involved in the full lifecycle of ground segment development, from conceptual design through to maintenance and operational support. You’ll play a key role in developing the infrastructure and software on the ground that enable safe and reliable space missions.

Working closely with Mission, Systems, and Operations teams, this position offers the chance to contribute to cutting-edge space missions and participate directly in control centre activities. It’s a fantastic opportunity to apply your technical expertise in a dynamic and collaborative environment where innovation and sustainability in space are core values.

Key Responsibilities

• Lead or support the development of ground systems including Mission Control, Mission Planning, and Ground Station Interface Systems.
• Derive and manage system requirements across the ground segment and its components.
• Act as Product Owner or Technical Officer with external suppliers and support internal development teams during system design and integration.
• Collaborate closely with Mission, Systems, and Operations teams to ensure technical alignment across disciplines.
• Follow Agile (SCRUM) methodologies to implement requirements and maintain project schedules.
• Produce and maintain high-quality technical documentation, including requirements, verification plans, test procedures, and reports.
• Conduct verification and validation activities, including system tests and simulation campaigns.
• Support the Operations team during mission activities and assist with maintenance and troubleshooting of ground systems.

 
Essential Skills

• Degree in Computer Science, Telecommunications, or a relevant engineering discipline.
• Minimum 3 years’ experience in ground systems engineering.
• Solid understanding of ground segment components and their interactions.
• Knowledge of space mission design and development processes.
• Experience in requirements engineering.

Desirable Skills

• Experience with Mission Control Systems (e.g., SCOS-2000).
• Knowledge of Automation Systems, Mission Planning, or Ground Station Communications.
• Experience working in Agile/Scrum environments.
• Familiarity with C++ and/or Java, Linux systems, and shell scripting.

What’s on Offer

• Flexible and hybrid working options
• 25 days’ holiday (increasing with service) + bank holidays
• Private healthcare and life insurance
• Relocation and visa sponsorship (where applicable)
• State-of-the-art office and cleanroom facilities
• Supportive, international team culture and regular social events

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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.

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Holt Executive are delighted to be partnered with Marlink to support a critical Solutions / Pre Sales Engineering hire.

Our partner, Marlink work together across the globe, using constant innovation, expertise and applied technology to bring systems and people together with a future focus. They push boundaries. They combine unrivalled resources and expertise in field engineering with advanced digital technologies such as cyber security, IT, and cloud enablement.

The Solutions / Pre Sales Engineer will be a crucial contributor within the Global Solutions Engineering team, being the in-country lead for Solution / Pre Sales Architecture. You will support the Sales teams with technical discussions whilst collaborate with Engineering teams and product developers to find better customer solutions.

Key Responsibilities for the Solutions / Pre Sales Engineer:

• Execute proof of concepts to validate both technical capability and customer value
• Act as the technical lead, driving customer solutions internally across Engineering, Product, Sales and Pricing teams
• Coordinate with external vendors where required to support solution delivery
• Own the technical preparation of quotations and proposals, including architecture, design and customer presentations
• Develop high-level solution designs aligned with customer needs and business objectives
• Create bespoke technical and commercial solutions, with a focus on Cyber Security, IT & Cloud, and IoT

Key Requirements for the Solutions / Pre Sales Engineer:

• Bachelor’s degree in Engineering, Computer Science, or equivalent professional experience
• Strong ability to understand complex technical environments and build holistic solution approaches
• Proven experience in Pre-Sales or Solution Design (Cyber Security experience is highly desirable)
• Background in connectivity, networking / SD-WAN, IT / IIoT, and managed or professional services
• Proficiency in proposal writing, solution architecture/design, and customer-facing presentations
• Fluent in German and English; additional languages are advantageous
• Exposure to maritime, energy, humanitarian or government sectors is a plus
• Valid passport with the ability to travel internationally

An exciting opportunity has arisen for a Senior Communications Engineer to join an advanced avionics team working on cutting-edge spacecraft missions. This role will play a key part in the design, development, and verification of spacecraft communications subsystems, supporting complex missions from concept through to launch and operations.

You’ll take ownership of the communications subsystem, working across disciplines including systems engineering, Command & Data Handling (C&DH), procurement, and Assembly, Integration & Verification (AIV). This is a hands-on, senior-level role requiring both strong technical expertise and the confidence to lead within a multidisciplinary environment.

Key Responsibilities

• Own communications work packages, including subsystem design baseline and architecture, requirements management and VCD activities
• Develop, review, and maintain spacecraft data and RF link budgets
• Model and simulate space-to-ground communications links
• Select, procure, and manage suppliers for communications hardware.
• Perform antenna and multipath analysis, including interference and impingement assessments
• Support frequency licensing and ITU regulatory activities
• Support ground station selection and interface discussions with ground segment teams
• Plan and execute unit-level acceptance testing
• Generate verification and validation plans and test procedures for communications systems
• Manage resources, schedules, and cost estimates in line with applicable standards and regulations
• Mentor and support junior engineers within the communications team

Essential Skills & Experience

• Bachelor’s or Master’s degree in Electronics, Communications, or a related discipline
• Strong experience defining and managing spacecraft communications requirements
• Proven experience developing and maintaining satellite link budgets
• Experience designing and developing spacecraft communications subsystems and architectures
• Hands-on experience with communications circuits and hardware testing
• Experience producing and executing communications V&V plans and procedures
• Knowledge of ITU frequency licensing constraints for space applications
• Eligible to work in the UK and Europe

Desirable Experience

• Broader understanding of overall satellite systems design
• Antenna design and RF propagation experience
• Detailed knowledge of communications link budget analysis
• Familiarity with ITU regulations and licensing processes

What’s on Offer

• Flexible and hybrid working options
• Optional 9/75 working pattern
• 25 days holiday, increasing with service (plus bank holidays)
• Life insurance and long-term sick pay
• Private healthcare (taxable benefit)
• Relocation support available
• Modern office and cleanroom facilities

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An exciting opportunity has arisen for a Senior Antenna Design Engineer to join an advanced R&D environment developing next-generation satellite ground terminal systems. This role sits at the heart of RF, microwave, and antenna engineering, contributing across the full product lifecycle, from early concept through to high-volume manufacturing.

You will play a key role in the design and development of gateway terminals and deployable flyaway systems operating across X, Ku, Ka, and Q/V bands. The position offers exposure to cutting-edge antenna reflector technology and the opportunity to contribute to future programmes, including defence-related systems.

As a Senior Antenna Design Engineer, you will take ownership of RF and antenna subsystem design, working closely with multidisciplinary engineering teams to deliver high-performance, production-ready solutions.

Key Responsibilities

• Define RF and antenna design specifications based on system requirements and performance targets
• Design and develop RF/antenna subsystems, including antenna reflectors
• Perform electromagnetic simulation and analysis using industry-standard tools (e.g. CST, HFSS, CHAMP)
• Build and evaluate prototypes, optimizing performance against specifications
• Carry out RF measurements and verification using equipment such as VNAs, spectrum analyzers, and signal generators
• Support manufacturing with antenna performance verification and troubleshooting
• Collaborate with internal teams and external partners throughout development
• Provide technical support for field issues and attend customer sites when required

Required Experience & Qualifications

• Bachelor’s degree with 5+ years’ relevant experience, or Master’s degree with 3+ years’ experience
• Strong background in RF, microwave, and antenna engineering
• Proven experience designing RF/antenna solutions from requirements through to validation
• Hands-on experience with electromagnetic simulation tools (e.g. HFSS, CST)
• Practical experience using RF test and measurement equipment
• Ability to work cross-functionally and resolve complex technical challenges
• Strong documentation and reporting skills

Desirable Experience

• Reflector antenna design experience

Why Apply?

• Work on advanced satellite communication systems at the forefront of RF technology
• Influence products from early design through to production
• Collaborate with experienced engineers in a highly technical R&D environment
• Contribute to both commercial and defence-related programmes

If you’re an experienced RF Engineer or Antenna Design Engineer looking to take on technically challenging work in satellite and antenna systems, this role offers a compelling next step.

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An exciting opportunity has arisen for an experienced Hardware Development Engineer to join a fast-paced, multi-disciplinary team designing and delivering secure digital hardware solutions. This is a hands-on role covering the full development lifecycle, from concept and design through to testing, production support, and customer integration.

What You’ll Do

• Take ownership of hardware design and delivery across the entire product lifecycle.
• Specify and design high-speed digital boards for products and test equipment.
• Create, build, and test development and production test equipment.
• Capture schematics and support PCB layout activities.
• Collaborate closely with Mechanical, Software, and Systems engineers to ensure seamless integration.
• Perform hardware design verification and support system/software testing.
• Produce development and production test processes and documentation.
• Provide production support, including resolving test and manufacturing issues and training production staff.
• Address design changes, component obsolescence, and integration of secure data products into customer platforms.

What We’re Looking For

• Degree in Electronic Engineering or a related discipline.
• Full hardware development lifecycle experience with a strong grasp of electronic design fundamentals.
• Proven track record in high-speed digital circuit development and signal integrity.
• Skilled in hardware testing and troubleshooting using oscilloscopes, logic analysers, and similar tools.
• Proficiency with industry-standard CAD tools (e.g., Cadence or Mentor schematic/layout).
• Must be a UK national and able to obtain UK Security Clearance (SC).

Desirable Skills

• Experience supporting production and applying Design for Test (DFT) and Design for Manufacture (DFM) techniques.
• Embedded firmware design (C/C++/Assembler/Python).
• Software design for test and test-equipment development.
• Ability to write test specifications and conduct hardware/system testing.

This is a fantastic opportunity to work on innovative, secure hardware technologies, contributing to projects with real-world impact while developing your expertise in a collaborative and forward-thinking engineering environment.

 
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We’re looking for an experienced Programme Engineering Manager to take charge of complex work packages for next-generation flight simulators.

This is a unique opportunity to work at the forefront of flight simulation, leading multidisciplinary teams and ensuring that advanced software-driven systems are delivered on time, to specification, and in compliance with aerospace standards.

If you thrive in fast-paced environments, have proven success managing technical projects, and are passionate about shaping the future of aerospace training, this role is for you.
 
What You’ll Do

• Lead cross-functional engineering teams with a strong emphasis on software development, testing, and integration.
• Take full ownership of work packages, ensuring delivery against scope, budget, and timelines.
• Oversee the delivery of software components for flight simulators, ensuring seamless integration with hardware and systems.
• Implement robust technical governance frameworks to ensure compliance with aerospace software standards.
• Drive risk management throughout the development lifecycle, mitigating issues before they impact delivery.
• Collaborate with internal stakeholders and external customers to align on requirements, milestones, and deliverables.

What We’re Looking For

• Degree in Engineering, Computer Science, Software Engineering, Aerospace, or a related discipline.
• Proven experience as a Work Package Owner, Delivery Manager, Programme Manager, or Technical Lead within aerospace or simulation projects.
• Strong understanding of engineering lifecycles, including development, verification, validation, and integration.
• Experience leading multi-disciplinary teams.
• Excellent project management, technical governance, and stakeholder engagement skills.
• Background in flight simulation, avionics, or complex aerospace software systems is highly desirable.
• Knowledge of aerospace software standards is highly desirable.

Why Join?

• Competitive Salary + Annual Bonus
• 25 days holiday + bank holidays (with buy/sell options)
• Private medical insurance (with family cover options)
• Pension scheme with up to 7% employer contribution
• Life assurance (4x salary, up to 10x available)
• Group income protection
• Flexible benefits including dental, healthcare cash plan, gym membership & cycle to work
• Wellbeing and mental health support (Employee Assistance Programme)
• Subsidised restaurant and on-site parking with EV charging
• Excellent learning & development opportunities

Applicants must have the right to work in the UK.

If you’re ready to take ownership of high-impact engineering projects, apply now!

A great opportunity for a Mechanical Design Engineer to join a growing engineering team working on advanced flight simulator hardware. You’ll be contributing to the design and development of high-fidelity training systems used by pilot training organisations worldwide.

In this role, you’ll be involved in developing mechanical and electromechanical systems, producing detailed models and drawings, supporting testing and validation, and working closely with cross-functional teams to deliver high-quality, safety-critical hardware. This is a fast-paced environment where ownership, agility, and collaboration are key.

What you’ll be doing

• Designing mechanical and electromechanical hardware for next-generation flight simulators
• Producing detailed 3D models, drawings, and specifications using industry-standard CAD tools
• Working with systems, software, and project teams to deliver integrated solutions
• Ensuring compliance with aerospace standards and supporting testing/validation
• Contributing to continuous improvement and evaluating new tools and technologies
• Supporting supplier management and component integration
• Providing technical leadership or mentoring depending on seniority

What we’re looking for

• Degree in Mechanical Engineering (or related field)
• Experience in mechanical/electromechanical hardware development
• Strong CAD skills (experience with Creo/Pro-E or CATIA V5 is a big plus)
• Experience with structural analysis/FEA tools (NASTRAN, Ansys, Abaqus welcomed)
• Familiarity with PLM systems (Windchill, Teamcenter)
• Understanding of aerospace mechanical/electrical standards
• Strong problem-solving skills and experience with testing/validation
• Comfortable working in multi-disciplinary teams
• Experience in flight simulation, aerospace, automotive, wind energy, or similar industries is an advantage

Benefits

• Pension matched up to 7%
• 25 days annual leave + bank holidays (increasing with service)
• Private Medical Insurance
• Life Assurance (4x salary)
• Group Income Protection
• Employee Assistance Programme (24/7 support)
• Digital GP access
• Holiday buy/sell scheme (up to 5 days)
• Retail, travel & leisure discounts
• Onsite parking with EV charging

If you’re looking to work on meaningful, technically challenging projects within a collaborative engineering environment, this could be a great next step.

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An exciting opportunity has arisen for an experienced AWS Engineer / AWS Systems Administrator to join a growing Global IT & Security team supporting a highly technical engineering organisation.

This role would suit someone from a systems administration background with strong exposure to DevOps principles, cloud infrastructure, and automation. You will work closely with engineering teams to understand their technical requirements and deliver robust, secure, and scalable solutions across cloud and on-prem environments.

Your primary focus will be the configuration, management, and ongoing maintenance of a growing AWS estate, alongside broader IT and infrastructure responsibilities.

Key Responsibilities

• Configure, manage, and maintain AWS environments, including VPCs, IAM, EC2, networking, and storage
• Support existing AWS-based projects and deploy new cloud infrastructure
• Implement automation and infrastructure as code using tools such as Ansible and Terraform
• Install and configure Linux and Windows virtual machines
• Proactively maintain, optimise, and support cloud and on-prem infrastructure
• Contribute to cost management, security patching, and compliance
• Support wider IT operations, including on-prem servers, SaaS platforms, and networking
• Perform backup and disaster recovery testing

Essential Skills & Experience

• 5+ years’ experience in a commercial IT or infrastructure role
• Strong experience managing Linux and Windows environments (build, deployment, software management, reporting)
• Experience with software deployment
• Configuration management and automation across Linux and Windows (e.g. scripting, Group Policy, Ansible)
• Hands-on AWS experience supporting live production environments (practitioner level or above)
• Networking fundamentals, including VPNs
• Familiarity with version control, ideally Git
• Proactive, self-starting, and able to work autonomously
• Strong communication skills and ability to collaborate within a team

Desirable Skills

• Experience supporting CI/CD or QA pipelines
• Strong hands-on experience with Ansible and/or Terraform
• Broad foundational knowledge of Windows and Linux platforms
• Understanding of IT frameworks and best practices (e.g. ITIL, Scrum)
• Exposure to Microsoft Azure
• Experience working within the space, aerospace, or advanced engineering sectors

What’s On Offer

• Flexible working around core hours
• Hybrid working
• Optional 9/75 working pattern
• 25 days annual leave (rising to 28) plus bank holidays
• Life insurance and long-term sick pay
• Private healthcare (taxable benefit)
• Relocation support
• Visa sponsorship considered
• Modern office and technical facilities
• Regular social events

This is an excellent opportunity to work at the intersection of cloud infrastructure, security, and advanced engineering, with real ownership and the chance to make a tangible impact in a technically demanding environment.

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A fantastic opportunity has opened for an experienced FPGA Engineer to join a fast-paced, multi-disciplinary engineering team working on innovative cyber and information assurance technologies. You’ll contribute to the design, development, and testing of secure digital solutions used across critical communication and defence environments.

This role offers the chance to work on complex FPGA designs, combining industry-standard and custom interfaces, and to be involved across the full engineering lifecycle, from requirements and architecture through to implementation, verification, and production.

Applicants must have, or be eligible to obtain, UK SC clearance.

What You’ll Be Doing As An FPGA Engineer

• Own the FPGA solution from requirements through to development and production
• Lead requirements elicitation and translate them into FPGA implementations
• Define FPGA architecture in collaboration with the wider development team
• Work with the Project Manager to plan, track and deliver against agreed schedules
• Potentially coordinate other FPGA engineers on specific design activities
• Interface with FPGA vendors and third-party IP suppliers
• Develop test benches and perform system-level testing
• Support proposal preparation, estimation activities, and contribute to technical white papers

What Experience Will You Need As An FPGA Engineer 

• Proven experience delivering FPGA designs through the full development lifecycle
• Strong VHDL design and verification skills
• Experience optimising designs for performance and power consumption
• Hands-on experience integrating and debugging FPGA solutions in hardware
• Familiarity with configuration management systems
• Experience with Microchip devices and Libero (advantageous)
• Verification experience using ModelSim/QuestaSim (UVM beneficial)

Desirable Experience For The FPGA Engineer

• Requirements management using DOORs
• SmartFusion, IGLOO or PolarFire devices
• PCIe NVMe and FPGA-based implementations
• Xilinx or Altera device/toolchain experience
• Working with third-party IP cores
• Design for security principles
• Embedded firmware (C/C++/assembler)
• Understanding of cryptographic standards and algorithms
• Integration of FPGAs into wider hardware platforms

Why Join

You’ll be working with a highly skilled team solving challenging, meaningful engineering problems with real-world impact. Expect a collaborative culture, complex technical work, and the opportunity to grow your expertise across FPGA, embedded systems and secure digital design.

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