3 results for Infrastructure Architect in Bicester, Oxfordshire

Principle IT Security Specialist

City of London, London
remote
Permanent
80000 - 105000 GBP / Yearly
Principle IT Security Specialist - London - Hybrid Working £80,000 - £105,000 (dependent on experience) + Equity & BenefitsHelp Build Europe's Hypersonic CapabilityThis organisation is redefining what's possible in European defence technology, delivering speed, resilience, and technological independence at a pace that sets a new standard. Operating as a small, elite, and highly capable team, it focuses on solving complex, high-impact problems quickly and effectively.They are seeking an Lead IT Security Specialist to join a talent-dense environment where every individual plays a critical role in shaping both technical direction and organisational capability. This is not a predefined role, it is an opportunity for a high-calibre security professional to take ownership of core security functions, with scope to evolve the position based on their strengths and expertise.The successful candidate will play a key role in strengthening security posture through SIEM ownership, incident response, and system hardening, directly contributing to Europe's technological sovereignty.The RoleThe IT Security Specialist will:<ul><li>Design, build, and operate a centralised SIEM platform to aggregate and analyse security logs across infrastructure, networks, and applications</li><li>Own security log analysis, vulnerability management, and incident investigation, including defining baselines and developing alerting rules for critical events</li><li>Lead incident response efforts, using log correlation and analysis to investigate and resolve security issues quickly and effectively</li><li>Define and implement system and application hardening standards, ensuring strong, consistent security configurations across environments</li><li>Act as an on-call responder for security incidents, taking full ownership from detection through to resolution and post-incident improvement</li><li>Collaborate with Information Security and leadership teams to ensure compliance with relevant standards and frameworks (e.g. Cyber Essentials, ISO 27001, DEF STAN, Grundschutz)</li><li>Develop and maintain clear documentation covering SIEM architecture, security controls, incident response procedures, and audit requirements</li></ul>Candidate ProfileThe ideal candidate will bring:<ul><li>Hands-on experience deploying and operating SIEM solutions (e.g. ELK Stack, OpenSearch, Wazuh, Microsoft Defender), with proven incident investigation experience in production environments</li><li>Strong expertise in Linux and Windows system hardening, with familiarity across frameworks such as CIS Benchmarks or STIGs</li><li>Scripting capability for automation, log parsing, and alerting rule development</li><li>Experience working within compliance-driven or regulated environments</li><li>A strong security mindset, with a focus on access control, threat detection, and auditability</li><li>The ability to balance robust security controls with operational efficiency</li><li>High levels of autonomy and sound judgement, with the ability to manage incidents end-to-end</li><li>A pragmatic, delivery-focused approach, prioritising effective security outcomes over theoretical perfection</li></ul>Security ClearanceDue to the nature of the work, applicants must be British citizens (or dual nationals with British citizenship) and eligible for UK Security Clearance (SC), with the potential requirement for Developed Vetting (DV).What's on Offer<ul><li>The opportunity to work on one of Europe's most critical and high-impact defence challenges</li><li>A high-autonomy environment with full ownership of key security capabilities</li><li>Collaboration with leading experts across engineering, operations, and defence</li><li>A fast-paced setting where ideas are implemented quickly and security improvements have immediate impact</li><li>A culture built on clarity, integrity, and excellence, supporting individuals who take initiative and operate with accountability</li><li>Competitive compensation and meaningful equity aligned to impact and responsibility</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/amFtZXMud2lsbHNvbi4yNTExNy4xMDkyM0ByaGkuYXBsaXRyYWsuY29t.gif">
2026-04-30T15:19:43Z

Integration Director

Birmingham, West Midlands
remote
Permanent
- 91000 GBP / Yearly
Interim Integration Director - HealthcareRobert Half is supporting a healthcare organisation with the appointment of an Interim Transformation / Integration Director to lead a major integration programme for a period of 6-12 Months.This is a high-impact interim assignment, focused on integrating an acquisition. The successful candidate will take ownership of the mobilisation plan, customer transition, workforce integration, operating model design and commercial delivery.The role requires someone who can move quickly, operate at board level and bring structure to a complex, time-critical transformation programme. Key Responsibilities<ul><li>Lead the end-to-end mobilisation and transfer of a healthcare service into the existing business.</li><li>Deliver a safe, controlled transition across customers, workforce, systems, processes and operations.</li><li>Build and manage the overall integration plan, including key milestones, risks, dependencies and success measures.</li><li>Work closely with operations, HR, finance, quality, safeguarding, commercial and marketing teams to ensure a joined-up transition.</li><li>Support the transfer and integration of employees, working alongside specialist HR and TUPE support.</li><li>Develop a commercially viable operating model, including cost base, pricing assumptions, margin delivery and long-term scalability.</li><li>Review how customers and service delivery should be allocated across the existing branch or regional structure.</li><li>Design the target operating model for the service once mobilisation is complete.</li><li>Establish clear reporting to the executive team and board, including KPIs, risk management and progress updates.</li><li>Ensure the transition is delivered without compromising quality, safety, customer experience or regulatory standards.</li></ul> What we're looking for<ul><li>A senior interim transformation or integration leader with experience in complex service environments.</li><li>Strong background in healthcare, social care, regulated services or another people-led, multi-site environment.</li><li>Proven experience leading acquisitions, service transfers, contract mobilisations, integrations or operational transformation programmes.</li><li>Commercially strong, with the ability to build robust operating models and understand pricing, cost structures and margin delivery.</li><li>Experience working with cross-functional teams including operations, HR, finance, quality, compliance and commercial leadership.</li><li>Comfortable operating at pace, dealing with ambiguity and reporting directly into senior leadership.</li><li>Exposure to regulated environments would be highly desirable, particularly healthcare or care-related services.</li><li>Able to combine strategic thinking with hands-on delivery.</li></ul>If you have led complex integrations programmes within healthcare or a similarly regulated environment, please apply now or get in touch for a confidential conversation.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/RGFuaWVsLkdyZWVuZS45Mjk5NS4xMDkyM0ByaGkuYXBsaXRyYWsuY29t.gif">
2026-06-01T15:47:37Z

Full Stack Engineer (React, TypeScript, AWS)

St. Albans, Hertfordshire
remote
Permanent
- GBP / Yearly
Full Stack Engineer (React, TypeScript, AWS) - Growing Company! Perm Role OnlyHybrid Working: 2 days in the office and 3 days from homeLocation: North West London / Hertfordshire (near Watford) A growing firm is hiring a Full-Stack Engineer to join a small, high-impact team building modern, scalable web applications. This is a hands-on, greenfield role with full ownership from idea to production, working closely with the business to deliver tools that make a real impact.What you'll do<ul style="direction: ltr; unicode-bidi: embed; margin-top: 0in; margin-bottom: 0in;" type="disc"><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Build full-stack applications using React, TypeScript, and AWS</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Own projects end-to-end</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Work directly with stakeholders to deliver solutions</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Develop intuitive frontends and scalable backend services</li></ul>What you'll need<ul type="disc" style="direction: ltr; unicode-bidi: embed; margin-top: 0in; margin-bottom: 0in;"><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">3+ years' experience building web applications</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Strong React and TypeScript (full-stack)</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Experience with Node.js and SQL/PostgreSQL</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Exposure to AWS, Docker, and CI/CD</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Comfortable working autonomously</li></ul>Why join<ul style="direction: ltr; unicode-bidi: embed; margin-top: 0in; margin-bottom: 0in;" type="disc"><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Greenfield development</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Small team with real ownership</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Modern tech stack</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Strong transport links, parking, and Thameslink access into Central London</li></ul> 2 stage process and fast turnaroundExcellent Benefits (25 days holidays, Healthcare, Pension, Training allowance and including a bonus) Robert Half Limited is in partnership with this client.Important Note:This is a UK based role, Applicants must have full rights to work in the UK. We are unable to consider fully remote, B2B or B2C contractors. APPLY NOW!!!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/dG9ueS5rb3lyYXR0eS42MTEzNy4xMDkyM0ByaGkuYXBsaXRyYWsuY29t.gif">
2026-05-01T05:55:40Z