Head Of Security Jobs in Bristol, Bristol, City Of

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Infrastructure Team Leader

Wantage, Oxfordshire
remote
Permanent
- GBP / Yearly
Exciting opportunity to join a well established and growing business based in Wantage as Infrastructure Team Leader, offering excellent career progression and development and competitive salary/package.The RoleAs Infrastructure Team Leader, you'll be responsible for:<ul><li>leading a small team of infrastructure specialists, responsible for monitoring, supporting and maintaining a reliable and high-performing server, storage and data-centre infrastructure </li><li>coordinating activities with internal and 3rd party resources across multiple international sites </li><li>lead continuous improvement of backups, disaster recovery and monitoring processes</li><li>identify opportunities to implement new technologies in line with IT strategy, driving automation and continuous improvement</li><li>maintaining standards and adhering to compliance processes and procedures, in line with various IT and security frameworks </li><li>lead on exciting infrastructure change projects and initiatives</li></ul>About youApplicants for the Infrastructure Team Leader role will:<ul><li>have sound experience gained as an infrastructure engineer, systems administrator, or similar, with strong knowledge across storage, server and data-centres, in particular Microsoft based infrastructure</li><li>be experienced with hyper-visor technologies (e.g. VMWare, Hyper-V, Nutanix, Proxmox)</li><li>have knowledge or experience of automation / orchestration (e.g. Ansible, Terraform) and container platforms (e.g. Kubernetes) would be beneficial </li><li>be comfortable working in a regulated environment and experience driving compliance with frameworks / standards</li><li>be comfortable working in an office based environment and with occasional international travel</li></ul>On offerCompetitive salary and benefits package, including generous pension, bonus, private medical and flexible working hoursRobert Half Ltd acts as an employment business for temporary positions and an employment agency for permanent positions. Robert Half is committed to diversity, equity and inclusion. Suitable candidates with equivalent qualifications and more or less experience can apply. Rates of pay and salary ranges are dependent upon your experience, qualifications and training. If you wish to apply, please read our Privacy Notice describing how we may process, disclose and store your personal data: roberthalf.com/gb/en/privacy-notice.<img src="https://counter.adcourier.com/cGV0ZXIuZWx3YXJkLjczODg5LjEwOTIzQHJoaS5hcGxpdHJhay5jb20.gif">
2026-09-12T08:43:12Z

Principal Data Scientist and ML Researcher

Gloucester, Gloucestershire
remote
Permanent
- GBP / Yearly
Robert Half has partnered with an established engineering firm to recruit for a newly created role of Principal Data Scientist and Machine Learning Researcher. This is a permanent role, based in Gloucester or Manchester, with competitive salary and benefits.As you will be working within a highly secure technology environment, the successful candidate will need to be able to obtain eDV and SC clearance. The Role<ul dir="ltr"><li>Supporting the Head of Data Science & Machine Learning to shape group strategy and engage stakeholders</li><li>Generating ideas for novel research that create competitive advantage across the customer community</li><li>Working autonomously to develop complex, novel data science solutions</li><li>Helping triage and respond to new opportunities, aligned to group and wider business strategy</li><li>Designing and delivering data-centric solutions in collaboration with colleagues across disciplines</li><li>Leading the technical delivery of research and applied AI/ML work on both customer and internal projects</li><li>Providing technical leadership across multiple projects</li><li>Managing and developing more junior members of the SRG team</li><li>Delivering AI, ML and data science solutions to a broad range of defence problems</li></ul>About You<ul><li>Several years' experience delivering novel ML solutions to customers and internal stakeholders</li><li>Proven experience as a Senior/Principal Data Scientist with ability to guide and coach the team</li><li>Excellent Python coding practice, including ML libraries such as HuggingFace, TensorFlow and PyTorch</li><li>Experience building robust ML pipelines with MLOps tools for model training, monitoring and deployment</li><li>Experience with version control and environment management (e.g. venvs, Docker)</li><li>Expert knowledge of AI/ML algorithms across different data types and tasks, including Generative AI, NLP and computer vision, sufficient to propose research beyond the existing literature</li><li>Hands-on experience training and developing AI models, including Large Language Models</li></ul>This is a permanent opportunity with a competitive salary package, additional clearance-related allowance and the chance to work on technically challenging, security-focused programmes. Due to the nature of the work, suitability and eligibility requirements will apply.If you have the relevant background and would be open to a confidential conversation, please get in touch. Robert Half Ltd acts as an employment business for temporary positions and an employment agency for permanent positions. Robert Half is committed to diversity, equity and inclusion. Suitable candidates with equivalent qualifications and more or less experience can apply. Rates of pay and salary ranges are dependent upon your experience, qualifications and training. If you wish to apply, please read our Privacy Notice describing how we may process, disclose and store your personal data: roberthalf.com/gb/en/privacy-notice.<img src="https://counter.adcourier.com/Um94eS5MYXcuNzM5MTMuMTA5MjNAcmhpLmFwbGl0cmFrLmNvbQ.gif">
2026-09-21T12:48:14Z

Treasury, Tax & Working Capital Manager

Bridgend, Bridgend
remote
Permanent
70000 - 80000 GBP / Yearly
Robert Half Talent Solutions are exclusively hiring for a Treasury, Tax & Working Capital ManagerTreasury, Tax & Working Capital ManagerLocation: Bridgend, Wales (Hybrid: 3 days on site, 2 days remote) Salary: Competitive + 10% bonus + comprehensive benefits package Reports to: Chief Financial OfficerAbout the RoleAre you a hand-on, senior finance professional looking to build and shape a critical capability?As our Treasury, Tax & Working Capital Manager, you will transition our informal finance processes into a resilient, documented, and fully controlled function. Reporting directly to the CFO, you will take full ownership of cash forecasting, the FX hedging programme, credit insurance, and the end-to-end working-capital cycle.This role is ideal for a qualified accountant with deep cash management exposure, including experienced Financial Controllers or Heads of Finance looking for a high-impact position. Technical tax preparation (such as transfer pricing and R&D claims) is outsourced to external advisers; your focus will be on leading tax governance and managing these strategic adviser relationships.Key Responsibilities<ul><li>Cash Management (12.5%): Build and run the rolling 13-week cash forecast and daily cash positioning to establish active cash management as a standard discipline.</li><li>FX & Hedging (7.5%): Manage and fully document the FX hedging programme against contracted currency exposures and committed payables, including year-end fair-value treatment.</li><li>Working Capital & Team Leadership: Drive the end-to-end working-capital cycle. You will partner closely with Procurement and provide direct leadership to the Group Credit Controller to optimise the collection side of the cash-conversion cycle.</li><li>Tax Governance: Own the governance, risk management, and strategic relationships with external tax advisers.</li><li>Process Resilience: Transition informal, key-person dependencies into structured, documented, and scalable financial disciplines.</li></ul>What We Are Looking For<ul><li>Qualifications: Fully qualified accountant (ACA, ACCA, CIMA, or equivalent).</li><li>Experience: Proven, hands-on experience in cash management, treasury operations, and working capital cycles.</li><li>Skills: Strong business-partnering capabilities, excellent documentation skills, and experience managing small teams or direct reports (like Credit Control).</li><li>Mindset: A proactive builder who enjoys creating order, documenting processes, and establishing robust governance.</li></ul>What We Offer<ul><li>Financial Reward: Competitive salary plus a performance-related 10% bonus.</li><li>Retirement & Security: 8% company pension contribution and comprehensive life assurance.</li><li>Time Off: 25 days annual leave plus all statutory bank holidays.</li><li>Health & Wellbeing: Paid sick pay and an active cycle-to-work scheme.</li><li>Culture: Regular company events and a collaborative, hybrid working environment.</li></ul> Robert Half Ltd acts as an employment business for temporary positions and an employment agency for permanent positions. Robert Half is committed to diversity, equity and inclusion. Suitable candidates with equivalent qualifications and more or less experience can apply. Rates of pay and salary ranges are dependent upon your experience, qualifications and training. If you wish to apply, please read our Privacy Notice describing how we may process, disclose and store your personal data: roberthalf.com/gb/en/privacy-notice.<img src="https://counter.adcourier.com/Q2hhcmxvdHRlLmFsbGVuLjU5MjM1LjEwOTIzQHJoaS5hcGxpdHJhay5jb20.gif">
2026-09-01T10:25:50Z

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