2nd Line Engineer- Hybrid (Outside IR35)

Added 20/04/2026

Essential RequirementsReliability and infrastructure services. Focus on patching of vulnerabilities with our digital Windows and WMWare environment within our data centers and Cloud environments. Service Scope and DeliverablesSystem and application patching on the following technologies:Citrix.Hardware.VMWare.Windows Server.M365.Core data centre services such as AD, Group Policy, DNS, VPN, AV, MFA, WSUS, SCCM, monitoring tools etc.SAN storage and backup.Multi Factor Authentication.MS AzureVulnerability assessment and patch identification.Patch prioritisation and risk scoringPatching using technologies WSUS and Tanium.Testing and deploying patching to ensure they do not impact productionConfirmation and validation of successful patch deploymentCreation and input into RFC process as part of ITSMGCS is acting as...

Lead Software Engineer- outside IR35

Added 18/03/2026

Lead Software Engineer (Backend) JavaScript/TypeScript, AWS, Kafka Outside IR35 ContractMy London based client is urgently looking for an experienced Lead Software Engineer with a strong back-end focus to lead the build and evolution of scalable, cloud-native services. You'll set technical direction, mentor engineers, and stay hands-on delivering production code.What you'll do:Lead backend design and development (Node.js, TypeScript/JavaScript)Build and operate event-driven microservices using KafkaOwn AWS-based delivery (scalability, performance, reliability, security)Drive engineering standards: code reviews, testing strategy, CI/CD, observabilityPartner with Product/Architecture to translate requirements into robust solutionsKey skills:Strong commercial backend experience with JavaScript/TypeScript (Node.js)Kafka experience (event-driven systems, distributed messaging)Strong AWS experience across...

Staff Engineer- Backend JavaScript -outside IR35

Added 28/02/2026

Staff Engineer- Backend JavaScript (Node.js / TypeScript) Contract - Outside IR35Location: London / Hybrid (once every two weeks) Contract: Outside IR35 Duration: 6 months initial (extension likely) Our client, an innovative and forward‑thinking technology business, is looking for a Backend JavaScript Staff Engineer to join a high‑performing engineering team. This is a fantastic opportunity for a highly experienced, hands‑on backend engineer who enjoys solving complex technical problems, building scalable systems, and providing technical leadership across teams.You will play a key role in shaping backend architecture, improving platform reliability and performance, and raising engineering standards while remaining deeply involved in hands‑on...

Fractional CISO - FinTech (Contract / Outside IR35)

Added 07/04/2026

Fractional CISO - FinTech (Contract / Outside IR35)Location: London (Fully Remote) Engagement: Fractional (2-3 days per week) Duration: 6-12 Months Rate: £1000pd+ (Outside IR35)The OpportunityGCS Cyber are partnering with a rapidly growing PE backed FinTech firm as they scale their security capability and mature their overall cyber posture.This is a Fractional CISO engagement, ideal for a senior security leader who can provide strategic direction while remaining hands-on where needed.You'll be working closely with the executive team, helping shape security strategy in line with business growth, regulatory expectations, and investor confidence.Key ResponsibilitiesDefine and lead the cyber security strategy and roadmapEngage with...

Software Engineering Lead- Javascript, AWS- outside IR35

Added 17/03/2026

Software Engineering Lead - Backend (JavaScript / TypeScript, Node.js, AWS, Kafka)Outside IR35Remote with 2 days a month in the office in LondonWe're looking for an experienced Software Engineering Lead with a strong backend development background to lead the delivery of scalable, cloud‑native systems.Key skills:Strong commercial experience with JavaScript, TypeScript, and Node.jsProven experience building event‑driven systems using KafkaStrong AWS experience across modern cloud servicesBackground designing and operating microservices / distributed systemsHands‑on technical leader with experience mentoring engineers and leading deliveryRole overview:Lead backend architecture and development while remaining hands‑onDrive best practices through code reviews and technical leadershipWork closely with Product, DevOps, and...

Project Manager (Outside Ir35)

Added 17/02/2026

My Utilities client are looking for an experience Project Manager to join their team on an initial 6 month outside ir35 contract roleThe role will require you to be on site 2/3 days a week in their Guildford Office Key responsibilities/Experience Experience delivering complex projects, specialising in financial processes, requirements gathering, and end-to-end delivery.Strong background partnering with Finance and Commercial teams to manage sales ledgers, oversee invoicing, develop robust financial business cases, and report to Senior Leadership teams.Proven experience engaging Sales teams and customers to capture new requirements, produce competitive bids, negotiate commercial terms, and consistently achieve revenue and delivery...

Business Analyst - MS Purview - Outside ir35

Added 16/02/2026

Role: Business Analyst - Microsoft Purview Duration: 6-month rolling contract Rate: Negotiable DOE - Outside IR35 Location: Preston - HybridGCS Cyber are supporting a large organisation enhancing its data governance and data protection capabilities across their Microsoft 365 environment.They are now looking for an experienced Business Analyst to help shape data classification standards, strengthen data loss prevention controls, and coordinate stakeholder engagement across multiple business functions.Must have: * Strong Business Analysis background with experience across IT systems * Experience with Microsoft Purview * Experience defining or refining business rules within the M365 suite * Strong workshop planning, stakeholder engagement and...

OT Cyber Security Engineer

Added 13/04/2026

Cyber Security OT Engineer📍 Suffolk (1-2 days per week on-site)Overview We're looking for an experienced Cyber Security OT Engineer to support and secure critical operational technology environments. You'll work across infrastructure, networks, and security tooling to ensure resilience, compliance, and protection against cyber threats in a regulated environment.Key ResponsibilitiesSupport and maintain OT security infrastructure (firewalls, SIEM, PAM, IDS, endpoint security)Monitor, troubleshoot, and resolve security incidents and problemsImplement changes in line with strict change control processesSupport OT security projects and continuous improvement initiativesAssist with cyber incident response and recovery activitiesWork with internal teams, vendors, and stakeholders to enhance security postureContribute to...

Senior Backend JavaScript Developer Outisde IR35

Added 22/02/2026

Senior Backend JavaScript Developer Outisde IR35 Remote and once in the London office every 2 weeksOur client, an innovative and forward-thinking technology business, is looking for a Senior Backend JavaScript Developer to join their growing engineering team.This is a fantastic opportunity for a seasoned developer who thrives on solving complex problems, building scalable systems, and mentoring others in a collaborative, agile environment.You will play a pivotal role in shaping the Back End architecture, delivering high-quality code, and ensuring the platform continues to perform at scale as the business expands globally.Key skills Strong proficiency in JavaScript/TypeScript with proven Back End development...

OT Cyber Security Delivery Manager

Added 01/06/2026

Role: OT Cyber Security Delivery ManagerDuration: 6 month rollingRate: Up to £650 Inside IR35Location: London (2 days onsite)I'm supporting an urgent requirement for an experienced OT Cyber Security Delivery Manager to drive the delivery of security improvements across a complex OT environment.This role is very much delivery-led, so we need someone who has hands-on experience implementing OT security controls, owning execution across initiatives like IT/OT segmentation, NIS2, and secure access.What we're looking for:Proven experience leading and delivering OT cyber programmes/projects end-to-end (IEC62443 / NIST aligned)Strong experience across ICS/SCADA and OT environmentsAbility to drive delivery across engineering, cyber, and operations teamsTo...

Cyber Security Analyst - B2B

Added 12/05/2026

Role: Cyber Security AnalystDuration: 6-month rolling contractWorking Pattern: Krakow, Hybrid - Handful of days per monthGCS Cyber are partnered with a global financial services organisation undergoing multiple large-scale transformation programmes across their Cyber Security division, including scaling their cloud security capability. We're hiring a Cyber Security Analyst to help drive the maturity of our cloud security posture and play a key role in developing and enhancing our CNAPP tooling.What you'll be doing:Enhancing and developing CNAPP capabilities, including automation, governance, dashboards, and reportingWorking closely with cloud engineers, architects, and cyber teams to align with mandatory controls and best practiceDriving continuous improvement...

Director - Cyber Security Consulting

Added 12/05/2026

Role OverviewWe are seeking an experienced Cyber Security Director to provide strategic and day‑to‑day leadership across a wide range of cybersecurity initiatives for our clients. This role is central to shaping, delivering, and overseeing high‑impact security programmes, while advising senior stakeholders on risk, resilience, and organisational security maturity.You will work closely with executive teams, technology leaders, and operational stakeholders to design and implement cybersecurity strategies, lead crisis and incident response efforts, and guide clients through complex security challenges. The role requires a strong consulting mindset, the ability to manage multiple engagements simultaneously, and a passion for driving measurable improvement in...

OT Cyber Security Project Manager - Fully Remote

Added 06/05/2026

OT Cyber Security Project Manager - 6-month rolling - Inside IR35 - Fully RemoteI'm hiring for an experienced OT Cyber Security Project Manager to lead the delivery of Cyber Security improvements across an Operational Technology environment.Must have managed OT Cyber projects end-to-end, from conception to delivery!If interested, please drop me a message or an email to [email protected] is acting as an Employment Business in relation to this vacancy.

Cyber Security Transformation Manager - OutsideIR35

Added 07/04/2026

Cyber Security Transformation Manager - Contract (Outside IR35)Location: UK - Manchester or London (Remote with occasional travel) Duration: 12 Months Rate: £950-£1,050/day (Outside IR35)The OpportunityWe're partnering with a fast-growing retail client on a 12-month cyber security transformation programme.This role is ideal for a hands-on Transformation Manager who can deliver enterprise-wide cyber initiatives, implement security tooling, and drive compliance improvements to support the client's rapid growth.You will work closely with internal stakeholders, operational teams, and vendors to ensure successful delivery of multiple workstreams, balancing strategic oversight with practical implementation.Key ResponsibilitiesLead delivery of cyber security transformation projects across multiple workstreamsImplement and optimise...

Cyber Security Transformation Lead

Added 07/04/2026

Cyber Security Transformation Lead - Tier 1 Bank Location: London, UK (1-2 days a week on-site) Duration: 12 Months Rate: 650pd-750pd (Inside IR35)The OpportunityWe're supporting a Tier 1 Bank on a large-scale cyber security transformation programme. This is a 12-month contract for a Transformation Lead to drive SOC build, cloud security initiatives, and regulatory compliance uplift across multiple business units.You'll work closely with senior stakeholders to deliver high-impact outcomes in a complex, regulated environment.Key ResponsibilitiesLead multi-workstream cyber security transformation across SOC, cloud, and complianceEngage with executive stakeholders to align programme outcomes with business strategyDrive programme governance, reporting, and deliveryCoordinate teams,...