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Holt Executive is partnering with a leading space technology company to find a Defence Mission Concepts Engineer to join their innovative team in Harwell, UK. This is an exciting opportunity to develop, analyze, and shape mission concepts for defence and national security space operations, contributing to groundbreaking space sustainability and protection initiatives.

About the Role: As a Defence Mission Concepts Engineer, you will be responsible for defining and modeling mission architectures, conducting feasibility studies, and developing concept of operations (CONOPS) for space-based defence projects. You’ll collaborate with multidisciplinary teams to design and assess advanced orbital manoeuvres, mission scenarios, and system capabilities.

Key Responsibilities:

• Design and develop mission concepts for defence and national security space operations.
• Perform mission analysis, feasibility studies, and trade-off assessments.
• Model and simulate orbital trajectories, RPO (Rendezvous and Proximity Operations), and spacecraft manoeuvres.
• Contribute to the definition of mission requirements, CONOPS, and system architectures.
• Collaborate with flight dynamics, GNC, and systems engineering teams.
• Support the development of technical proposals and mission plans.
• Present mission concepts, performance analysis, and trade studies to internal and external stakeholders.

Essential Skills:

• Bachelor’s or Master’s degree in Aerospace Engineering, Physics, or a related field.
• Experience in mission concept development, orbital mechanics, or mission planning.
• Proficiency with space mission simulation tools (e.g., MATLAB, STK, GMAT, or FreeFlyer).
• Strong problem-solving skills and analytical mindset.
• Experience with defence or space industry standards and best practices.
• Ability to communicate complex technical concepts clearly and effectively.

Desirable Skills:

• Experience with RPO and satellite servicing missions.
• Familiarity with space situational awareness (SSA) and collision avoidance techniques.
• Knowledge of space law, regulations, and defence policies.
• Proficiency in Python, C++, or other programming languages for mission simulation.
• Experience with data visualization and analysis tools.

What’s on Offer?

• Competitive salary and benefits package.
• Work on cutting-edge space defence missions.
• Hybrid working model with flexible hours.
• Private healthcare, life insurance, and relocation support.
• Access to state-of-the-art office and cleanroom facilities.
• Regular social events and career development opportunities.

If you’re a talented Mission Concepts Engineer looking to contribute to pioneering defence space operations, apply today or contact Holt Executive for more details!

Join our client and leverage your expertise and leadership in electronics design to make a significant impact!

Holt Executive is partnered with a leading electro-optics design and manufacturing business, seeking a Senior Electronics Engineer to join their expanding Engineering team. If you are passionate about innovation and leadership in electronics design, this role is for you.

As a Senior Electronics Engineer, you will play a key role in developing cutting-edge electronics and leading a talented team. Your expertise will drive innovation, ensuring high standards of engineering practice and project success.

Key Responsibilities for the Senior Electronics Engineer:

• Expertise in circuit design, components, and PCB technology.
• Work in EMC, Power Management, Servo Control, processor interfacing, and communications.
• Define and review overall architecture, including power management and system wiring.
• Lead by example, setting standards for good engineering practices.
• Drive innovation within the department, regularly communicating with senior management, customers, and stakeholders.
• Lead the development or enhancement of technology, providing subject matter expertise for R&D projects.
• Technical leadership of multi-disciplined projects, fostering a systematic approach and delivering solutions to customers.
• Provide insights into resource planning and support other engineers through training and development.

 
Key Skills and Experience for the Senior Electronics Engineer:

• Strong degree in a related discipline accredited by the IET, with typically 6 years of relevant experience.
• Proven experience in leading or supervising projects or teams.
• Solid theoretical and practical understanding of electrical and electronic designs.
• Ability to perform analysis-based activities such as circuit emulation and power budgets.
• Capability to assess and highlight key project risks and design activities.
• Awareness of the full project lifecycle from bid development to customer support.
• Proven track record of innovation-based approaches in engineering and leading, managing, or mentoring engineers.
• Ability to investigate and fault-find technical problems at PCB or system level.
• Experience with Embedded Software Design, including ARM/KEIL.
• Knowledge of EMC to military standards and managing issues at architecture and embedded levels.
• Understanding of motors and drive technology, with skills in control systems analysis.
• Proficiency in analysis and simulation tools such as Python, MATLAB, Simulink, LT-Spice, Simetrix.
• Familiarity with management tools like JIRA, Confluence, MS Project.
• Expertise in PCB design tools such as Altium, Cadence OrCAD.
• Familiarity with design resilience techniques like Failure Mode Effects Analysis.
• Awareness of Lightning Direct and Indirect Effects.

 Company Benefits:

• 37.5-hour work week with lunchtime finishes on Fridays.
• 28 days annual leave and Christmas closure.
• Employee Help@Hand Service providing access to remote GP services, second opinions, mental health support, and physiotherapy consultations.
• Life Assurance Policy, including Bereavement Counselling and Probate Helpline.
• Company Share Incentive Plan and Save as You Earn Scheme.
• Wellbeing initiatives, including access to the Aviva Wellbeing App and regular wellbeing activities.
• Employee discount scheme, including access to a wellbeing hub.
• Excellent Learning & Development opportunities.

 
Security Clearance Requirements:
Due to the nature of our business, our staff need to be able to obtain UK Security Clearance as a mandated requirement. Therefore, if successful, you will need to provide proof of identity, employment history and right to work in the UK, along with proof of UK residency for at least five years.

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

Holt Executive are partnered with a leading design and manufacturing business with a cutting-edge product range that aids specific customer requirements, servicing a variety of markets across the globe including the Defence and Surveillance industries.

They require an IT Manager with experience in the defence industry to oversee the technology operations, ensuring systems are secure, efficient, and driving innovation. The ideal candidate will have expertise in compliance and secure communications, while aligning IT strategies with defence regulations and business goals.

The successful candidate will lead a small team of IT professionals, demonstrating strong leadership abilities and a passion for technology.

Key Responsibilities for the IT Manager:

• Develop and implement the IT strategy ensuring alignment with business goals
• Lead and manage the IT team, setting objectives, providing guidance, and ensuring operational excellence
• Plan and oversee IT budgets, ensuring cost-effectiveness
• Oversee the maintenance and upgrades of hardware, software, and networks
• Ensure IT systems run efficiently with minimal downtime
• Manage classified and unclassified IT environments, ensuring secure access and data integrity
• Manage cloud services, data storage, and backup solutions
• Review, develop, and update IT policies, procedures, and security protocols to align with industry best practices
• Enforce cybersecurity policies to protect company data, driven by the Cyber & Information Security Analyst

Key Skills & Experience for the IT Manager:  

• Experience in IT management, preferably within the defence industry
• Strong knowledge of network security, secure communications, and defence IT regulations
• Experience managing classified IT environments and secure cloud solution

Security Clearance Requirements: Due to the nature of the business, applicants need to be able to obtain UK Security Clearance as a mandated requirement. Therefore, if successful, you will need to provide proof of identity, employment history and right to work in the UK, along with proof of UK residency for at least five years.

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

Holt Executive are supporting a leading defence industry organisation on their hire for an experienced Head of Commercial to support its business growth. The ideal candidate will have extensive experience negotiating and administering contracts with key defence customers, including UK and US government agencies and major defence contractors.

As a member of the Senior Management Team, you will lead commercial activities, collaborating with Business Development and Project Management teams to develop solutions for tenders and oversee contract management.

Key Responsibilities

• Lead contractual activities in tender processes, preparing responses and supporting bid approvals.
• Provide commercial risk guidance to the Senior Leadership Team, advising on terms and conditions.
• Draft and review agreements, ensuring compliance with due diligence policies.
• Support Supply Chain teams in subcontract negotiations.
• Advise and assist Project Management teams in contract execution from initiation to closure.
• Resolve contractual conflicts and ensure effective risk mitigation.
• Manage and develop the Commercial Team, ensuring best practices.

Skills & Experience Required 

 Essential:

• 10+ years’ experience.
• Strong knowledge of UK and international defence contracts, including pricing, financing, and contract law.
• Experience negotiating contracts and working across business boundaries.

 
 Personal Attributes:

• Independent thinker with strong leadership and negotiation skills.
• Ability to assess and mitigate contractual risks.
• Effective manager and team leader, able to drive process improvements.

Security Clearance

Due to the nature of the business, UK Security Clearance is required. Applicants must have proof of identity, employment history, and UK residency for at least five years.

Holt Executive is excited to partner with a leading global connectivity provider in the search for a Senior Sales Manager who will be tasked to generate new business opportunities from both new and existing clients. Covering the UK, USA and other regions, you will work closely with the Business Development and Service team to promote and sell the company’s services across a key market. 

Alongside managing direct reports, this position holder will be a key figure in driving business growth. Working in a competitive market, you must have a winning mentality and work ethic to go the extra mile.   

Key Responsibilities: 

• To seek out, promote, market and sell products and services into new & existing accounts.
• Handle new sales enquiries.
• To develop/maintain strong relationships in all areas and levels with nominated customers.
• To liaise with and manage the process flow with the Technical Services Department to ensure excellent service provision to our customers.
• To provide sales support to specified Key customers.
• To provide quotations.
• To have commercial awareness of the marketplace and customer’s account activity.
• Maintain the sales database dynamically with new leads/quotes.
• To produce sales budgets, forecasts and reports.
• To ensure contracts and purchase orders are issued and signed by the customer in good time.

  Essential Skills and Experience:

• Knowledge of and experience in selling VSAT solutions.  
• Ability to multi-task and produce accurate work with short deadlines.
• Interpersonal/Team skills.
• Flexibility around working hours and must be prepared to travel extensively.
• Comfortable presenting to engineers and well as the C Suite
• Eligible to obtain Security Clearance.

  *This company is disability confident*

Holt Executive are delighted to be partnering with a global technology and communications leader to recruit a Programme Manager for an interim contract in the aerospace industry.
Our partner mission is to deliver innovative technology and communication services to several markets around the world. Mobility is a key focus for them.
For the Programme Manager hire, the individual will be responsible for technical leadership throughout the customer lifecycle inhouse and externally.
Key responsibilities for the Programme Manager – Aircraft/Airline:

• Provides technical guidance, status, and leadership to the customer and internal teams for all account related activities.
• Define, clarify, and advise on customer requirements, lab requirements, and testing support.
• Identify and review SLA exclusions, facilitates process improvement, and change in coordination with the agreement, customer, and product evolution 
• Working with product & program teams and DevOps on new airline / aircraft / feature onboarding and scheduling (e.g., Salesforce)
• Coordinating and supporting needs related to software, portal, configuration items, and content.

 
Key Experience required for the Programme Manager – Aircraft/Airline:

• Experience in a technical Account Management/ Service Delivery role (B2B – Telecom/IT/Aviation)
• Bachelor’s Degree in Electrical Engineering, Computer Science or Computer Engineering or another related degree
• Demonstrated experience managing customer expectations and delivery scope
• Solid understanding of TCP/IP and Broadband networking concept
• Proficiency with Salesforce or equivalent ticketing system and reporting tools
• Ability to present complex technical material to a variety of audiences
• Demonstrate the ability to lead multi-functional teams

Holt Executive is Hiring – Full Stack Software Engineer (Python)  Holt Executive is partnering with a pioneering space technology company to find a Full Stack Software Engineer – Python to join their dynamic team in Harwell, UK. This is an exciting opportunity to work on cutting-edge space missions, contributing to the development of ground segment software, mission control systems, and data services.

About the Role: As a Full Stack Software Engineer, you will play a key role in designing, developing, and maintaining web-based applications that support mission operations. You will collaborate with cross-functional teams to build scalable backend systems, intuitive front-end interfaces, and robust APIs, helping to ensure the success of complex space missions.

Key Responsibilities:

• Develop and maintain full-stack applications using Python, Django, and related frameworks.
• Build user-friendly front-end interfaces using React, Angular, or Vue.js.
• Design and implement RESTful APIs for mission-critical applications.
• Collaborate with data scientists, engineers, and mission operations teams to enhance data management and visualization tools.
• Optimize backend performance and ensure high reliability of data pipelines.
• Participate in code reviews, testing, and deployment of applications.
• Write and maintain comprehensive technical documentation.

Essential Skills:

• Proficiency in Python with experience in full-stack development.
• Strong knowledge of Django or Flask for backend development.
• Experience with JavaScript frameworks (e.g., React, Angular, Vue.js) for front-end development.
• Familiarity with RESTful APIs and web application architecture.
• Experience with SQL and NoSQL databases.
• Strong problem-solving skills and ability to work in a collaborative team environment.

Desirable Skills:

• Experience with Docker and Kubernetes for containerization and deployment.
• Familiarity with cloud platforms (AWS, Azure, or GCP).
• Knowledge of CI/CD pipelines and DevOps practices.
• Experience with data visualization libraries and tools.
• Knowledge of ground segment or space mission operations software.

What’s on Offer?

• Competitive salary and benefits package.
• Work on groundbreaking space technology projects.
• Hybrid working model with flexible hours.
• Private healthcare, life insurance, and relocation support.
• Access to state-of-the-art office and cleanroom facilities.
• Regular social events and professional development opportunities.

If you’re a talented Full Stack Software Engineer looking to make an impact in the space sector, apply today or contact Holt Executive for more details!

Holt Executive are delighted to be partnering with a global technology and communications leader to recruit a Programme Manager in the aerospace industry.

Our partners mission is to deliver innovative technology and communication services to several markets around the world. Mobility is a key focus for them.

For the Programme Manager hire, the individual will be responsible for technical leadership throughout the customer lifecycle inhouse and externally.

Key responsibilities for the Programme Manager – Aircraft/Airline:

• Provides technical guidance, status, and leadership to the customer and internal teams for all account related activities.
• Define, clarify, and advise on customer requirements, lab requirements, and testing support.
• Identify and review SLA exclusions, facilitates process improvement, and change in coordination with the agreement, customer, and product evolution 
• Working with product & program teams and DevOps on new airline / aircraft / feature onboarding and scheduling (e.g., Salesforce)
• Coordinating and supporting needs related to software, portal, configuration items, and content.

 
Key Experience required for the Programme Manager – Aircraft/Airline:

• Experience in a technical Account Management/ Service Delivery role (B2B – Telecom/IT/Aviation)
• Bachelor’s Degree in Electrical Engineering, Computer Science or Computer Engineering or another related degree
• Demonstrated experience managing customer expectations and delivery scope
• Solid understanding of TCP/IP and Broadband networking concept
• Proficiency with Salesforce or equivalent ticketing system and reporting tools
• Ability to present complex technical material to a variety of audiences
• Demonstrate the ability to lead multi-functional teams

Holt Executive are partnered with a 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 User Terminal Development Specialist to play a vital role in in the design and development of next-generation satellite user terminals.

Key Responsibilities for the User Terminal Development Specialist:

• Support the design, development, and optimization of Modem architectures.
• Drive trade-space discussions.
• Collaborate with cross-functional engineering teams to ensure that integration of the modem with other terminal components is seamless.
• Developing and implementing signal processing algorithms.
• Performance analysis, and test reviews of modem designs, including link budget analysis.
• Ensure compliance is met with relevant industry standards.
• 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.

Key Skills & Experience for the User Terminal Development Specialist: 

• 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 User Terminal Development Specialist opportunity, we encourage you to apply now!

Holt Executive are partnered with a leading, truly global Satellite and Space Operator that is on a mission to change how the world connects and communicates.

We have an exciting opportunity for a Payload System Architect to play a crucial role in the design of next generation communication payloads for space.

Key Responsibilities for the Payload System Architect:

• Design/Architecture of communication payloads.
• Lead mission analysis for communication systems requirements and down flows.
• SWaPC and reliability analysis, including simulations.
• Definition of interfaces (digital, electrical, RF, optical, mechanical/thermal, etc.)
• Oversight of subcontractors and partners when required.
• Space qualification activities, including bus and component selection.
• Support with testing, participate with integration, launch and in-orbit commissioning.
• Presentations and reports for the full development, including design reviews, test activities, manufacturing, qualifications, progress review, etc.

Key Skills & Experience Required by the Payload System Architect:

• A Masters, or PhD degree in Engineering.
• Proven experience in:
  • Satellite Communication Payload architectures for different orbits LEO/MEO/GEO/HEO.
  • Hardware and Software design, development, and integration for space applications.
  • Digital design for space communications and Digital regenerative payloads.
  • Inter-satellite links and digital phased array antennas.
  • Proven experience with orbital analysis tools, Telemetry, Tracking, and Control (TT&C) platform, and Ansys Systems Tool Kit (STK).
  • Experience with operations, including satellite TT&C operations, payload operations, users, and network management facilities.
• Swiss, or EU (27) Citizen, or holding a valid Swiss work permit.

This opportunity is a fulltime position, that requires onsite working in Lausanne, Switzerland.
 
If your skills and experience match this Payload System Architect opportunity, we encourage you to apply by sending your CV now!