OCS UK & Ireland is a leading facilities management company with 50,000+ colleagues and a turnover in excess of £2bn. We deliver innovative, award-winning services within facilities management, hard services, cleaning, security and catering.
Our mission is to make people and places the best they can be for our colleagues, customers and the communities we serve. Our commitment to doing business the right way is rooted in our TRUE values - Trust, Respect, Unity, and Empowerment.
Why Work for OCS?
✅ Award-Winning Employer : Ranked 36th on Glassdoor’s Best Companies to Work For 2025 — we value and motivate our people.
Digital Learning : The OCS Academy offers digital courses and resources to help you build skills and grow your career.
Retail Perks With our Hapi app, you can gain access to exclusive discounts, rewards and wellbeing resources.
Professional Growth : 600+ live learners across UK&I — Empowering colleagues with further development and qualifications!
Flexible Pay : Access a portion of earned wages before payday with our Wagestream App! (Contract Specific)
£5k per annum
...Job Title: Project Engineer - Sprinklers Location: London & South East Summary of Role... ...we deliver complex fire protection and security solutions to protect what matters most to... ...fire detection, and integrated security systems. With 140+ year trading experience and a...SuggestedFull-timeMonday to Thursday£40k per annum
...Allied Universal Company the leading global security and outsourcing group, specialises in... ...620,000 employees. G4S Fire & Security Systems (UK) is the leading integrator of fire and... ...has arisen for an Installation Project Engineer in our Fire & Security Systems division,...SuggestedFull-time£60k - £65k per annum
...recently acquired by a giant in the industry. This will give you the smaller company autonomy paired with the big company security. You will be working on the system and networking administration but also will be driving the innovation of the platform. You will be working with...SuggestedPermanentOn-siteRemote- ...Our Defence and Security teams provide design and engineering services for our nuclear and defence clients across the... ...practice, and we are looking for Systems Engineers with transferable skills... ...some of the most inspiring/exciting projects and programmes across the UK Ministry...SuggestedLong-term contractPermanentPart-timeHybrid workingOn-siteFlexible hours
£60k per annum
...Small Works Engineer – Security Systems Region: London & surrounding area On-Target Earnings: Up to £60,000 (inclusive of overtime, travel pay and bonuses) Sign-On Bonus: £4,000 Join Trinity Fire & Security Trinity Fire & Security is seeking an experienced...SuggestedLong-term contract£50k - £60k per annum
Our client who service and maintain all facilities within schools mainly in South East London are seeking an experienced Security Systems Engineer with in-depth knowledge in servicing and maintaining, CCTV, Access Control, intruder alarms, fire alarms and automated gates....PermanentFull-time- £43k - £56k per annumEstimated...Thornton Tomasetti applies engineering and scientific principles to solve the world's challenges... ...career. Our Protective Design & Security practice helps architects, owners, developers... ...security objectives while upholding each project's aesthetic, functional and budgetary...Full-time
- £43k - £56k per annumEstimated...Thornton Tomasetti applies engineering and scientific principles to solve the world's challenges... ...career. Our Protective Design and Security practice help architects, owners, developers... ...security objectives while upholding each project's aesthetic, functional and budgetary...Full-time
- £80k - £105k per annumEstimated...Principal Security & Systems Engineer – Windows, Automation, Endpoint Security London – Hybrid Industry Leading Compensation Quant Capital is partnered with a leading trading firm looking to hire a Senior IT Security Engineer to strengthen its global security...Hybrid working
- ...Our Defence and Security provide design and engineering services for our nuclear and defence clients across the... ...are looking for an HV Designer/Power Systems Engineer to design large industrial... ...design and monitors ongoing process of a project, including the coordination of the...Long-term contractPermanentPart-timeHybrid workingOn-siteRelocationFlexible hours
- £32k - £41k per annumEstimated...and a turnover in excess of £2bn. We deliver innovative, award-winning services within facilities management, hard services, cleaning, security and catering. Our mission is to make people and places the best they can be f or our colleagues, customers and the communities we...Monday to Friday
- £59k - £78k per annumEstimated...strategic delivery programmes and engineering services. As such, we have an opportunity for a Project Engineering Manager (Civil &... ...Services Capability, supporting secured frameworks, projects and... ...methods, competency, software systems and technical standards and ensuring...Full-timeTemporaryHybrid workingOn-siteImmediate start
- £58k - £76k per annumEstimated...global clients deliver ambitious and highly technical projects, in over 110 offices worldwide. The National Security & Defence Infrastructure South East Cost Centre... ...and Project Management, Project Planning, Cost Engineering, Risk Management, and Commercial Disciplines....Full-timeNo agencyHybrid workingOn-siteFlexible hours
- Sector: Security / Architecture Location: Central London Type: Interim... ...Our client is looking for a SRE Engineer combining software and IT engineering... ..., scalable, and high-performing systems. Job Responsibilities: ~Scope technical projects and break them down into user...Interim
- Company: OPUS RECRUITMENT SOLUTIONS Job Type: Contract, Full TimeFull-time
£65k per annum
...networking solutions that help modern businesses stay connected and secure? Join a London‑based IT consultancy and services team... ...excellence and collaboration, professionals contribute to impactful projects and long‑term client success. Apply now to play a key role in...Long-term contractPermanentHybrid working£450 - £500 per day
...networking solutions that help modern businesses stay connected and secure? Join a London‑based IT consultancy and services team... ...bridging the gap between standard NOC operations and senior network engineering teams. Apply now to play a key role in delivering strategic IT...Hybrid working£60k - £70k per annum
...and development? Join a leading cyber security services provider delivering independent... ...level. This company is looking for a SOC Engineer to work closely with clients, supporting... ...platforms, ensuring the availability of critical systems, and helping shape industry standards for...Permanent£32k per annum
...cybersecurity provider delivering network, data centre, system integration, IoT, RPA, and security solutions to customers across Europe and globally.... ...out a range of technical and coordination tasks across projects and maintenance contracts. The role focuses on meeting...PermanentRemote£60k per annum
...solutions across managed services, security, lifecycle management, and... ..., macOS, and core business systems Owning the Microsoft 365 /... ...You’ll also get involved in projects, including endpoint modernisation... ...experience in IT Support / Engineering ~ Strong Microsoft 365 and...PermanentRemote- £91k - £120k per annumEstimated...an exciting opportunity where we’re exploring local Sr Lead Security Engineering talent who need flexibility, with the potential to present qualified... ...design across metrics/logs/traces and distributed systems troubleshooting, resilience engineering, performance/capacity...Long-term contractFull-timePart-time
£65k - £75k per annum
...networking solutions that help modern businesses stay connected and secure? Join a London‑based IT consultancy and services team... ...excellence and collaboration, professionals contribute to impactful projects and long‑term client success. Apply now to play a key role in...Long-term contractPermanentHybrid working- £59k - £78k per annumEstimated...frequency without compromising safety and security. This will create a whole new market of... ...vehicles. A major component of the Arene Engineering team’s mission is to streamline software... ...test, emulation, and simulation systems. We aim to facilitate quicker software releases...
- £35k - £46k per annumEstimated...We are looking for a highly experienced and competent Security Systems Service Engineer. You will be servicing security systems i.e. Intruder Alarms... ...technical experts our focus is on the lifetime value of a project. Meaning we can design, supply, install, test and maintain...40 hours/weekFull-time
- £69k - £91k per annumEstimated...cybersecurity provider delivering independent security services that help organisations manage... ...organisation is seeking an ML Research Engineer to join its Innovation & Research team... ...on building and evaluating AI and agentic systems, improving machine learning models and workflows...PermanentHybrid workingOn-site
£65k per annum
...help modern businesses stay connected and secure? Join a London‑based IT consultancy and... ..., professionals contribute to impactful projects and long‑term client success. Apply now... ...of project work and high-level network engineering support. Collaborative engineering environment...Long-term contractPermanentHybrid workingOn-site£500 per day
...networking solutions that help modern businesses stay connected and secure? Join a London‑based IT consultancy and services team... ...offering the opportunity to work across large-scale infrastructure projects while also acting as a senior escalation point for operational incidents...Hybrid working£25 per hour
...Discipline: Project Engineer Location: North London Start date: Immediate Duration: 6+ months Shifts: 11 day fortnight Week 1: Mon to Fri 7-7 (9 hrs basic, 2.5 hrs OTA Mon to Thurs, 7 hrs basic + 4.5 hrs OTA Fri), Weekend 7-4.30 (Sat 4 hrs OTA + 5 hrs...Immediate startMonday to FridayShift workWeekend work- £53k - £71k per annumEstimated...The Senior/Project Engineer is a key link between the works on-site, the design and technical functions, and the wider project team. They provide... ...requirements, and comply with Statom's Quality Management System. Ensure that ITPs, Task Briefing Sheets, and Method Statements...Temporary
- Lead complex engineering projects from concept to completion and make a real impact in a highly regulated... ...and maintain project records and systems. Work closely with commercial teams to... ...understand just how important it is to secure the right people. That is why our Recruitment...Permanent
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