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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.
 
Our partner is seeking a Senior Software Engineer to support on cutting-edge tech that enhances network protocols and packet processing frameworks.
  
Key Responsibilities for the Senior Software Engineer:

• Support the design, coding, testing, and maintenance of software applications.
• Developing and maintaining embedded software modules using C++ and Python.
• Designing high-performance packet processing applications using DPDK and similar frameworks.
• Optimizing network functions to ensure maximum throughput and minimal latency.
• Development and maintenance of packet processing pipelines for different network functions.
• Troubleshooting complex performance issues in packet processing applications.
• Support in the implementation of networking solutions.
• Participate in code reviews.
• Support with integration of software components on a Linux operating systems.

 
Key Skills & Experience for the Senior Software Engineer:

• A degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field.
• Knowledge of packet processing development.
• Understanding of DPDK (Data Plane Development Kit).
• Experience with Kernel bypass technologies.
• A solid understanding of Linux-based network stacks, kernel modules, and performance optimization.
• 8+ years’ experience in C/C++ for low-level network programming and high-performance packet processing.
• Some experience with Vector Packet Processing (VPP) framework a plus.
• Some familiarity with modern NIC features (RSS, checksum offload, scatter-gather) is a plus.
• A basic understanding of networking concepts and protocols. (TCP/IP, UDP, VXLAN, GRE, etc.).

 
The successful candidate must be able to work in Canada and be able to obtain a Reliability Clearance.
 
This opportunity offers a hybrid work model with 4 days per week in the office and occasional travel is anticipated.

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

Holt Executive is collaborating with an industry-leading bespoke manufacturing and engineering specialist who design, build, and supply advanced and future-proofed technology to the Naval, Land and Security sectors across the globe.

Our partner has an exciting opportunity for an experienced Senior Embedded Software Engineer to take the lead in designing and developing embedded software and Windows-based user interfaces.

Key Responsibilities for the Senior Embedded Software Engineer:

• Lead the end-to-end development of software applications, from concept design and requirements definition to detailed design and coding.
• Design and develop software applications, covering all stages from concept to detailed coding.
• Collaborate with Mechanical, Electrical, and Electronics engineers to ensure successful project delivery.
• Oversee all software requirements and address issues throughout the project lifecycle.
• Create robust software with a focus on fault management, fault reporting, and application health monitoring.
• Develop and maintain supporting documentation, including interface control documents, user manual inputs, and fault code lists with corrective actions.
• Assist customers with integration, commissioning, and problem resolution, including on-site support when necessary.

Key Skills and Experience for the Senior Embedded Software Engineer:

Essential –

• Strong degree in a related discipline.
• Experience of embedded software design and appreciation of associated hardware.
• Strong mathematics background.
• Experience in leading technical software projects.
• Experience of embedded software design and good general appreciation of associated hardware.
• Experience of writing C/C++ for embedded applications.
• Experience of the design and development of control systems, preferably of motor control principles and theory and interfaces.

Embedded Software/Firmware:

• Experience of using STM32 processors and Keil uVision development environment and tools.
• Communications such as Ethernet, RS422/UART, CAN, SPI etc.
• Hardware interfacing, GPIO, ADC, DACs etc.

Windows/User Interfaces:

• Understanding of developing desktop application and user centric interface design.
• QT and QT Creator– multiplatform development environment in C++.
• Visual Studio C++ and C#.
• Low latency programming techniques.
• Networking (TCP/UDP).

 
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, all 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.

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 has partnered with a leading satellite communications (SATCOM) provider, offering secure voice & data services to a global customer base. They also provide integrated IT & engineering solutions across maritime, enterprise, defence & government sectors.

Our partner is seeking an Telecommunication Billing Manager to manage and oversee the UK monthly billing cycle, including detailed management reporting. This role involves leading the UK Airtime Billing team, handling daily airtime activities, and coordinating with internal and group teams. A strong understanding of products and services as they relate to billing and should be able to produce and analyse airtime reports to support senior management.

As the subject matter expert for NIBS, INSIGHT provisioning, and third-party airtime systems, you will ensure that all billing and provisioning requests are resolved efficiently. Additionally, you will provide support to other airtime teams across the group, ensuring consistency in processes and reporting. This role is crucial for maintaining accurate billing and effective management of airtime processes, contributing to overall operational excellence.

Key responsibilities, skills, and experience for the Telecommunication Billing Manager:

• Oversee and manage information across NIBS and various systems related to order provisioning, customer accounts, billing profiles, and rates.
• Maintain and ensure the accuracy of the airtime billing database (NIBS).
• Process internal and external requests for service activations, deactivations, and package changes, including advising on any Early Termination Fees.
• Understand and manage airtime processes to ensure timely execution.
• Handle monthly billing cycles, including configuring provisioning requests, performing daily or weekly checks for errors, and resolving issues before billing runs.
• Manage invoice processing within the designated timeframe, ensuring accuracy before approval and final issuance to customers.
• Address and resolve queries promptly and extract analytical reports for billing and activation.
• Oversee the Freshdesk ticketing system, ensuring all tickets are managed, categorized, and resolved within SLA.
• Process prepay voucher sales orders, invoices, and voucher deliveries.
• Liaise with customers, suppliers, and internal teams to ensure accurate and timely completion of processes.
• Provide support and training on internal systems and modules to both internal and external teams.
• Approve incoming supplier invoices and coordinate with the finance team.
• Handle complaint escalation and management.
• Participate in the wider banking team to approve invoices according to Delegation of Authority procedures.

If your qualifications and experience align with this Airtime Billing Manager opportunity, we encourage you to submit your CV to info@holtexecutive.com for consideration.

Project Manager  Location: Belgium

Role Overview:
The Project Manager is responsible for overseeing and successfully delivering projects that align with organizational goals, focusing on satellite communication technologies. This includes proposal support, contract negotiations, and managing resources to meet customer needs.

Key Responsibilities:

• Manage internal/external resources, customer relationships, and project teams.
• Ensure project adherence to budgets, timelines, and quality standards.
• Support contract proposals and negotiations.

Requirements:

• Master’s degree in Aerospace, Space, Mechanical or Electrical Engineering.
• 4+ years in space systems, with 2+ years of project management experience.
• Experience with ESA projects and security clearance is a plus.

Nice to have:

• Experience of having worked with institutional, defense and international organizations would be considered as an asset;
• Expertise in the following fields is considered a strong asset:
  • Knowledge of ECSS standards and ESA project lifecycle;
  • Experience with EU/ESA “protected” and “classified” projects.
• Skilled in the daily usage of office and project management software (MS Outlook, MS Word, MS Excel, MS PowerPoint, MS Project…);
• Willing to travel internationally.

Holt Executive are actively partnered with a leading innovator in navigation and robotics for autonomous systems and sensing solutions, to support with a critical hire for a Business Development Executive.

We are seeking an experienced Business Development Executive to grow the company presence in the EMEA region, focusing on the Defence Industry, identifying customers/partners, driving sales, developing customer relationships, building the company’s brand awareness and landing strategic accounts across the territory.

Key Responsibilities below for the Business Development Executive:

• Business development efforts for identifying Defence Opportunities across the territory
• Research and identify key large-scale programs for the products/solutions portfolio for defence applications across the region
• Identify strategic partnerships that will better position the company and accelerate our opportunity for winning defence programs
• Establish key relationships and rolodex across the defence industry with US Military branches and global defence primes, including laying out organizations with influencers and decision makers identified
• Identify and layout key program deliverables, features/requirements and certifications that are needed to ensure success in the defence market in the EMEA region
• Drive the top-line revenue and orders by expanding growth with existing customers, acquiring new customers and driving upsells by fostering the adoption and use of our products, solutions and services
• Own the end to end sales process, from lead to prospect to close, bringing the companies solutions to new and existing customers
• Working closely with the Chief Revenue Officer and others to execute the company’s Go-To-Market strategies
• Paint the companies vision and opportunity for prospects through a combination of ROI and qualitative value propositions
• Understand the technical requirements of each customer and work closely with Support and the Products Group to guide the direction of our product offerings and solutions

Key experience & qualifications for the Business Development Executive: 

• 5-10 years experience in the EMEA Defence industry
• 5+ years experience of business development, sales and account management, experience with high-tech solutions in at least one of the following defence verticals; aerospace, land systems, autonomous vehicles/robotics and maritime/subsea
• Experience in selling and servicing high-tech solutions
• Executive presence with the ability to represent and present in front of an audience
• Be a strong team player that is passionate about being a part of a fast-moving and entrepreneurial company
• Flexibility to work within multiple time zones

If your qualifications and experience align with this  Business Development Executive opportunity, we encourage you to submit your CV to info@holtexecutive.com for consideration.

Holt Executive is supporting a global leader that designs and manufactures high-performance imaging sensors, and electronics and develops groundbreaking technology for space exploration.

Our client is seeking a Senior FPGA Engineer to join their highly successful team to focus on FPGA development, verification and release processes in line with ECSS standards and requirements, and to ensure those processes are followed throughout the life cycle of the product 

Key Responsibilities for the Senior FPGA Engineer:

• Drive FPGA development, verification, and release processes in compliance with ECSS standards and requirements.
• Ensure adherence to FPGA development processes throughout the product lifecycle.
• Oversee the creation and delivery of FPGA documentation to ensure compliance with ECSS standards.
• Conduct review processes, including source code reviews, to validate compliance.
• Develop a thorough understanding of FEE operation to create test plans and procedures.
• Generate and execute test plans to ensure FPGA deliveries meet customer and internal requirements.
• Participate in hands-on testing and verification of FPGA deliverables.
• Provide ECSS knowledge and guidance to the Product Assurance engineer.
• Act as the primary interface between FPGA engineering and Product Assurance.

Key Skills & Experience for the Senior FPGA Engineer:

• Knowledge of development standards used in Space, Aerospace, or Defence. Preferably ECSS-Q-ST-60-03C and ECSS-E-ST-20-40C.
• Previous experience of ensuring compliance across the full FPGA development life cycle.
• Verifying robust high reliability coding.
• Developing FPGA verification and validation plans and quality assurance procedures.
• Experience with version control software such as subversion.
• Experience of requirements managements using software tools such as Jama.
• Experience with issue tracking software such as Redmine or Jira.
• Previous experience developing VHDL FPGA code and using FPGA simulation tools and UVVM testbenches.
• Experience writing verification and validation plans.
• Methodical approach to verification testing and recording of results.

If your skills and experience match this Senior FPGA Engineer opportunity, we encourage you to apply by sending your CV to peter.kimber@holtexecutive.com 

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 a Field Service Engineer to provide field support to customers worldwide ensuring the stable operation of hardware & software products. This will involve installing, configuring, maintaining, supporting, and optimizing all products and systems, which includes fire control systems, Naval electro-optical surveillance systems and land/vehicle surveillance systems.

Key Responsibilities for the Field Service Engineer:

• Offsite repairs to products and systems, and installation of new products at customer sites.
• After sales support and servicing to customers.
• Generating post site visit reports to include any recommendations and/or future actions.
• Strip-down / survey, repair, and test allocated customer repair returns.
• Testing and evaluating potential new equipment, sensors/cameras etc.
• Preparation of risk assessments and SSOW’s for installation/commissioning activities.
• Lead (as required) in-house Factory Acceptance Testing (FATs) and other customer activities.

Key Skills & Experience for the Field Service Engineer:

• Experience of complex systems maintenance with electrical and mechanical assembly tools.
• Electronics knowledge, including microcontrollers, with an understanding of basic control theory.
• Competent mechanical and electro-mechanical skills and understanding.
• A strong understanding and proficiency with electrical, mechanical, PC architecture, and software skills including problem diagnosis, software loading and updates.
• Comfortable working in exposed or adverse conditions at land and sea, including working at heights and with large heavy equipment.
• Must be willing to travel worldwide at sometimes short notice, working extended hours as necessary (company compensation policy applies).
• Clean driving licence with class C1 is desirable for driving company test vehicle.

Company Benefits:

• 37.5 hour working week. Company Compensation Policy applies to overtime hours.
• Lunchtime finishes on a Friday.
• 28 days annual leave plus bank holidays.
• Christmas closure.
• Group pension plan – matched contributions up to 5%.
• 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 and physiotherapy consultations.
• Life assurance policy, including bereavement counselling and probate helpline.
• Company shares incentive plan and save-as-you-earn scheme.
• Group electric vehicle salary sacrifice scheme.

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 Field Service Engineer opportunity, we encourage you to apply now!

Senior Stress Analysis Engineer Holt Executive are seeking an experienced and motivated Senior Stress Analysis Engineer with a strong background in space, aerospace, or other technical industries to join our client in the UK.

This is a fantastic opportunity to become part of a friendly, skilled, and welcoming team within a dynamic and rapidly growing organization. As a member of the analysis team, you will play a key role in structural analysis, contribute to project work, and support design activities.

Your technical expertise will guide project teams in defining, developing, testing, and operating spacecraft for our missions. You will collaborate closely with multidisciplinary engineering teams and suppliers globally.

This position allows you to make a meaningful impact by addressing the growing challenge of orbital debris and contributing to the sustainability of space as a resource.

Responsibilities

• Conduct stress and structural analysis at spacecraft, subsystem, and equipment levels.
• Evaluate analysis and test data to support the qualification of spacecraft and ground support structures.
• Ensure the structural integrity of prototype and flight components throughout the load cycle.
• Develop test predictions to support static and dynamic testing efforts.
• Provide design recommendations and communicate effectively with the Design Team and other subsystems.
• Prepare, review, and present analysis work and conclusions to stakeholders.
• Document all analysis work thoroughly, ensuring outputs are organized, trackable, traceable, and repeatable.
• Peer-review analysis performed by team members.
• Deliver work to agreed timelines and standards to meet mission objectives.

Essential Skills

• 3 to 5 years of experience in stress and structural analysis within the space industry.
• Expertise in structural calculations for metallics, sandwich panels, inserts, and bolted joints, following established standards and handbooks.
• Skilled in creating, checking, and maintaining Finite Element Models at spacecraft and component levels.
• Proficiency in static analysis, frequency response, random vibration, and shock analysis.
• Experience using FEA software packages such as NASTRAN, Hyperworks, Femap, Abaqus, or Ansys.
• Ability to process large datasets with automation tools such as VBA or Python.
• Strong documentation and presentation skills to communicate analysis processes and conclusions.
• Capable of presenting and justifying work to peers and stakeholders.
• Behaviors aligning with values such as transparency, innovation, diversity, and customer focus.

Desirable Skills

• Experience with CAD tools like SolidWorks and PDM.
• Familiarity with ECSS and NASA standards, guidance, and handbooks.
• Understanding of the spacecraft product development lifecycle.
• Proactive, self-starting approach with strong organizational skills.
• Sound engineering judgment with the ability to provide expert guidance on structural issues.
• Proven experience in managing accountability for project deliverables.
• Effective communication and stakeholder engagement abilities.

Benefits

• Competitive base salary.
• Opportunity to work with a talented, diverse, and dynamic international team using cutting-edge technology.
• Flexible working arrangements in a friendly and supportive environment.
• Hybrid working options (role-dependent).
• 25 days annual leave (increasing to 28 days) plus 8 bank holidays.
• Optional 9/75 work schedule.
• Life insurance and long-term sick pay.
• Private healthcare (taxable benefit).
• Relocation allowance and visa sponsorship available.
• Access to a new state-of-the-art office and cleanroom facility.
• Regular social events.

Senior Stress Analysis Engineer Holt Executive are seeking an experienced and motivated Senior Stress Analysis Engineer with a strong background in space, aerospace, or other technical industries to join our client in the UK.

This is a fantastic opportunity to become part of a friendly, skilled, and welcoming team within a dynamic and rapidly growing organization. As a member of the analysis team, you will play a key role in structural analysis, contribute to project work, and support design activities.

Your technical expertise will guide project teams in defining, developing, testing, and operating spacecraft for our missions. You will collaborate closely with multidisciplinary engineering teams and suppliers globally.

This position allows you to make a meaningful impact by addressing the growing challenge of orbital debris and contributing to the sustainability of space as a resource.

Responsibilities

• Conduct stress and structural analysis at spacecraft, subsystem, and equipment levels.
• Evaluate analysis and test data to support the qualification of spacecraft and ground support structures.
• Ensure the structural integrity of prototype and flight components throughout the load cycle.
• Develop test predictions to support static and dynamic testing efforts.
• Provide design recommendations and communicate effectively with the Design Team and other subsystems.
• Prepare, review, and present analysis work and conclusions to stakeholders.
• Document all analysis work thoroughly, ensuring outputs are organized, trackable, traceable, and repeatable.
• Peer-review analysis performed by team members.
• Deliver work to agreed timelines and standards to meet mission objectives.

Essential Skills

• 3 to 5 years of experience in stress and structural analysis within the space industry.
• Expertise in structural calculations for metallics, sandwich panels, inserts, and bolted joints, following established standards and handbooks.
• Skilled in creating, checking, and maintaining Finite Element Models at spacecraft and component levels.
• Proficiency in static analysis, frequency response, random vibration, and shock analysis.
• Experience using FEA software packages such as NASTRAN, Hyperworks, Femap, Abaqus, or Ansys.
• Ability to process large datasets with automation tools such as VBA or Python.
• Strong documentation and presentation skills to communicate analysis processes and conclusions.
• Capable of presenting and justifying work to peers and stakeholders.
• Behaviors aligning with values such as transparency, innovation, diversity, and customer focus.

Desirable Skills

• Experience with CAD tools like SolidWorks and PDM.
• Familiarity with ECSS and NASA standards, guidance, and handbooks.
• Understanding of the spacecraft product development lifecycle.
• Proactive, self-starting approach with strong organizational skills.
• Sound engineering judgment with the ability to provide expert guidance on structural issues.
• Proven experience in managing accountability for project deliverables.
• Effective communication and stakeholder engagement abilities.

Benefits

• Competitive base salary.
• Opportunity to work with a talented, diverse, and dynamic international team using cutting-edge technology.
• Flexible working arrangements in a friendly and supportive environment.
• Hybrid working options (role-dependent).
• 25 days annual leave (increasing to 28 days) plus 8 bank holidays.
• Optional 9/75 work schedule.
• Life insurance and long-term sick pay.
• Private healthcare (taxable benefit).
• Relocation allowance and visa sponsorship available.
• Access to a new state-of-the-art office and cleanroom facility.
• Regular social events.