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Site Reliability Engineer (SRE) - Defence/National Security - £75k - Farnborough - Hybrid A permanent opportunity for an experienced Site Reliability Engineer who enjoys building secure, automated, and highly reliable platforms. This role sits within a defence and national security environment, working on modern infrastructure where automation, resilience, and secure-by-design principles are fundamental. You'll work closely with platform engineers, infrastructure teams, and operational stakeholders to take requirements from early design and proof-of-concept through to production. The role blends hands-on engineering with technical design, offering real influence over tooling, standards, and DevOps ways of working. It suits someone curious, detail-oriented, and comfortable working in complex, regulated environments. What you'll be doing • Designing, delivering, upgrading, and maintaining core platforms, services, and automations, • Building and improving monitoring, alerting, and observability platforms, • Designing secure infrastructure using automation-first approaches, • Creating and productionising proofs of concept for new tools and technologies, • Diagnosing and resolving performance, reliability, and availability issues, • Supporting architecture, documentation, and non-functional requirements, • Strong experience with Linux (Ubuntu) and Windows Server environments, • Hands-on Scripting skills (Bash, Python, PowerShell or similar), • Proven experience with automation and DevOps tooling (Ansible, Terraform, CI/CD, Git), • Experience working with Azure or similar cloud platforms, • Solid understanding of infrastructure reliability, monitoring, and incident response, • Strong problem-solving skills and ability to work across multiple priorities, • Infrastructure-as-Code life cycle and best practices, • Containerisation and orchestration (Docker, Kubernetes), • Configuration management and desired state tooling, • Application and platform monitoring tools (Splunk, Nagios or similar), • Experience hardening systems and conducting security assessments

AI Software Engineer - Fleet, Hampshire Are you ready to get stuck into real innovation, push boundaries, and work with tech that’s transforming how we understand the world around us? Whether you’re a recent graduate eager to make your mark or a seasoned engineer looking for your next challenge, this role gives you the space, ownership, and impact you’re looking for. What you’ll do as the AI Software Engineer - Fleet, Hampshire • Preparing, cleaning, and augmenting datasets for high-quality model training, • Training, fine-tuning, and evaluating AI models including agentic workflows and feedback loops, • Applying ML/DL techniques (classification, regression, feature extraction) to solve complex wireless testing problems, • Building semantic search and root-cause analysis capabilities for mobile communication logs, • Benchmarking and optimising AI model performance, • Supporting cloud-based infrastructure setups and CI/CD automation, • Developing clean, intuitive web interfaces to visualise AI functionality What you’ll bring as the AI Software Engineer Fleet, Hampshire • Solid Python skills, • Experience with ML frameworks (TensorFlow, PyTorch) and data-processing tools, • Understanding of cloud platforms (Azure is ideal) and CI/CD pipelines, • Familiarity with MLOps/DevOps concepts, • Experience building web UIs (HTML, CSS, JavaScript, modern frameworks) If you’re ambitious, curious, and ready to build real-world AI that makes a tangible impact let’s talk.

Our Sat Connect IC business unit, a division of our Satellite Systems business is a leading provider of ASICs, software, multi-beam electronically steered antennas, and complete systems for communication satellites, as well as ground and airborne terminals. Responsibilities The Senior Validation Engineer will have the following responsibilities: • Validation of Chipsets verifying functional and performance metrics, • Validation of high speed analog IPs, • Development and ownership of chip and system test plan with collaboration of development and test teams, • Development of test automation in Python for the chip and system test plans, • Investigation of root cause of test case failures and providing corrective action in conjunction with the development teams, • Execution, development and planning of Chip & System tests and Contribute to the evolution of product quality for ESMA silicon products, • Support Test Management tools and continuous integration methodologies, • Data analysis and post processing of data collected Requirements • Batchelor/Master Degree in Electronic/Computer Science Engineering, • Experience of testing Telecommunication or Satellite Systems., • Experience of Chip and system testing, especially with Analog, RF and high speed communication blocks, • Knowledge in time domain high speed links (SERDES) and associated equipment (BERT, DCA), • Proven experience in program language in an automation test environment (C/C++/Python etc.), • Very good debugging skills. Ability to investigate and root cause the issues observed, • Experience in planning, estimating and development of system tests, • Defect Tracking and Knowledge Management software (Atlassian JIRA and Confluence preferred), • Knowledge of testing Methodologies, • Knowledge of operation of RF test equipment such as Spectrum Analysers, VNAs/PNA’s, Sig. Gens, power meters , high speed sampling scopes, etc., • Excellent Interpersonal skills, • Knowledge on RF fundamentals and communications theory, • Independent, self-motivated, team player and multitasking capabilities, • Ability to work in a fast-paced and changing environment

Lead SIEM Engineer Hybrid – Hemel Hempstead or Farnborough (1–2 days on site) DV Clearance – must be eligible This is not a “keep the lights on” SIEM role. If you’re the person everyone turns to when detections fail, noise is out of control, or the SIEM needs fixing properly, this role was built for you. We’re hiring a Lead SIEM Engineer to take full ownership of SIEM capability within a high-assurance UK defence environment. You’ll define how the platform is engineered, how threats are detected, and how the SOC operates at scale. This is a senior, visible role with real authority not a passenger seat. If you want influence, autonomy, and technically demanding work that actually matters, read on. What you will own: • End-to-end control of SIEM engineering architecture, content, performance and continuous improvement., • Designing and tuning high-fidelity detection logic: rules, alerts, dashboards and reports that SOC teams trust., • Acting as the final technical escalation point for SIEM across multiple secure programmes., • Driving detection strategy alongside Threat Hunters, SOC Leadership and Security Architects., • Introducing new threat intelligence, attack techniques and ideas — and turning them into real detections., • Setting the standard: mentoring engineers, enforcing best practice, and raising the technical bar. What we expect from you: • Proven leadership in SIEM engineering using Splunk, Microsoft Sentinel or QRadar., • Deep understanding of how attackers operate and how SIEM should actually detect them not just map to frameworks., • Strong hands-on scripting capability (Python, PowerShell, Regex) to automate, enrich and reduce noise., • Confidence operating in secure, high-pressure defence environments with senior stakeholders., • The mindset to challenge poor detections, bad data and “we’ve always done it this way”. Why this role stands out: • Real ownership you design it, you build it, you improve it., • High-impact work protecting nationally critical systems., • A SOC that values engineering excellence over box-ticking., • Clear scope to influence strategy, tooling and future direction., • A role that moves you from senior engineer to technical leader. If you’re done being constrained, under-utilised, or ignored this is your opportunity to take the lead and leave your mark.

The role involves supporting security software installation, automation script development using Python, and working with network devices. Candidates should have a strong technical background in cyber security and knowledge of Linux technologies. A leading defense technology company is seeking a Cyb

A leading defense and aerospace company is seeking a Cyber Security Engineer in Frimley. Ideal candidates will have a strong background in Cyber Security, with hands-on experience in Python and networking technologies.