{"id":3730110,"url":"https://alion.io/job/adecco-infrastructure-cyber-security-specialist","title":"Infrastructure & Cyber Security Specialist","company":{"id":14714,"name":"Adecco","domain":"adecco.com","url":"https://alion.io/company/adecco","size_band":"5000+","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Alma Career","truth_index":{"grade":"A","score":100,"open_postings":4,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":30,"computed_at":"2026-11-09T06:03:00Z"}},"role":"Security","role_family":"Security","seniority":"middle","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":{"min":51000,"max":55000,"currency":"GBP","period":"year","gross":null,"usd_annual":73790},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Azure","optional":false},{"name":"ISO 27001","optional":false},{"name":"Microsoft Defender","optional":false},{"name":"Microsoft Entra ID","optional":false},{"name":"SIEM","optional":false},{"name":"DLP","optional":true},{"name":"Microsoft Sentinel","optional":true}],"status":"live","first_seen_at":"2026-10-26T15:59:33Z","employer_posted_date":null,"last_verified_at":"2026-10-26T15:59:33Z","board_verified":false,"closed_at":null,"days_open":13,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":13},"description":"Infrastructure & Cyber Security Specialist\nSalary: Up to £55,000 DOE\nLocation: Remote (UK) with occasional travel to Essex\nFull Time | Permanent\nAre you passionate about cyber security and looking for an opportunity to make a real impact within a growing organisation?\nWe are seeking an experienced IT Infrastructure Security Specialist to join a well-established business and play a key role in maintaining, enhancing and evolving the company's cyber security posture. This is an excellent opportunity for someone who enjoys a varied role spanning security operations, infrastructure security, compliance, incident response and security improvement projects.\nThis position is predominantly remote, with occasional travel to the company's Essex office when required.\nKey Responsibilities\nManage and enhance cyber security controls across the IT infrastructure.\nMonitor, investigate and respond to security incidents and threats.\nSupport the implementation and management of SIEM, endpoint security and monitoring solutions.\nConduct vulnerability assessments and coordinate remediation activities.\nImplement and maintain Microsoft security technologies including Entra ID, Defender and Purview.\nDevelop and enforce security policies, standards and best practices.\nSupport internal and external audits, compliance activities and security assessments.\nEnsure alignment with recognised security frameworks and regulatory requirements.\nWork closely with internal stakeholders and third-party providers to improve overall security posture.\nAssist with business continuity, disaster recovery and risk management initiatives.\nIdentify opportunities for continuous improvement across security processes and controls.\nSkills & Experience Required\nMinimum 3 years' experience within Cyber Security, Infrastructure Security or Information Security.\nStrong hands-on experience with Microsoft security technologies including:\nMicrosoft 365 Security\nMicrosoft Entra ID\nMicrosoft Defender\nMicrosoft Purview\nIntune\nAzure Security\nExperience with incident response, threat detection and remediation.\nKnowledge of SIEM technologies and security monitoring.\nVulnerability management experience and familiarity with related tooling.\nUnderstanding of security frameworks and standards such as NIST, ISO 27001, Cyber Essentials or NIS2.\nExperience supporting audits, compliance and governance activities.\nStrong analytical and problem-solving skills.\nExcellent communication skills with the ability to engage technical and non-technical stakeholders.\nDesirable Experience\nMicrosoft Sentinel experience.\nDLP (Data Loss Prevention) and data classification.\nExperience within manufacturing, industrial or operational technology (OT) environments.\nRelevant certifications such as Security+, SC-200, SC-300, AZ-500, CISSP, CISM or similar.\nWhat's On Offer\nSalary up to £55,000, depending on experience.\nPredominantly remote working.\n25 days holiday plus bank holidays.\nCompany pension scheme.\nLife assurance and company sick pay.\nEmployee Assistance Programme.\nOngoing training and professional development.\nOpportunity to work with modern security technologies and influence cyber security strategy.\nSupportive and collaborative IT environment.\nEqual Opportunities\nOur client is committed to creating an inclusive workplace and welcomes applications from candidates of all backgrounds. Selection will be based solely on skills, experience and suitability for the role.\nRight to Work\nApplicants must have the right to work in the UK. Unfortunately, sponsorship is not available for this position.\nAdecco acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers. The Adecco Group UK & Ireland is an Equal Opportunities Employer.\nBy applying for this role your details will be submitted to Adecco. 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