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Contractor 45
Information Technology Inside IR35 Berkhamsted

45 jobs found in Berkhamsted

CL
Apr 11, 2026  
Infrastructure Engineer
I am recruiting for an Infrastructure Engineer to be based on site in Stevenage. The role falls inside IR35 so you will be required to work through an umbrella company. You will have experience of both 2nd and 3rd Line Support. You will ensure that the IT systems provide a continuous service to all departments and associated stakeholder business. You must be able to support in closing tickets that are logged via the Service Desk. SCCM and packaging experience is required. Extensive experience managing server infrastructure in a complex, high-availability environment. Experience working with virtualisation technologies such as VMware or Hyper-V. Excellent technical knowledge of server operating systems (Windows Server, Linux) and virtualisation platforms. Strong understanding of networking principles, including TCP/IP, DNS, and DHCP, as they relate to server management. You will also be required to participate in the 24/7 IT on-call scheme in support of critical IT...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Feb 25, 2026  
SAP Security Support Administrator
World Class Defence Organisation is currently looking to recruit a SAP Security Support Administrator Subcontractor on an initial 12 month contract. The role can be based from either the companies Stevenage or Bolton site, depending on your preference.  The role will be predominantly working from home.   Rate: £22.63ph (Umbrella) Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage or Bolton depending on your preference   Hybrid / Remote working: The role will be predominantly working from home… one day per week onsite.  Also, a condensed 4 day working week of Monday to Thursday is OK too. Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)   SAP Security Support Administrator Job Description: The SAP Security Support Administrator plays a key role in supporting documentation, refinement and execution of General IT Controls...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Feb 06, 2026  
Embedded Software V&V Engineer
World Class Defence Organisation is currently looking to recruit 5x Embedded Software V&V Engineer subcontractors on an initial 6 month contract.  Skills in C, C++ or ADA are beneficial.  A defence or aerospace industry background would also be great.   Rate: £70.00 per hour Location: Stevenage or Bristol, depending on your preference. Hybrid / Remote working: Full time on site (occasional work from home day) (The company are happy with a 4 day week) Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Interview process: 1 stage video interview   Embedded Software V&V Engineer Job Description:   The department create the complex, highly reliable real-time software that powers missile systems and their components, ensuring that they provide the performance and functionality our users require when they...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jan 17, 2026  
PERL Software Developer
World Class Defence Organisation is currently looking to recruit a remote PERL Software Engineer subcontractor on an initial 6 month contract. Job Title:  PERL Software Engineer Rate: £77 - £84 per hour Location: Stevenage Hybrid / Remote working: This role is a remote based role – with just 1 visit to the Stevenage site per month. Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) PERL Software Engineer Job Description: The Software department are looking for a software developer with experience in the PERL programming language. We require someone who can create and update text-based templates used in Technical Publications authoring and publishing tasks. Knowledge of the Technical Publications publishing process would be an advantage but not a requirement. Assistance in updating and in some cases,...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Apr 08, 2026  
Technical Architect
Technical Architect / 6 Month Contract / Milton Keynes / Inside IR35 / £640 / Hybrid – 3 days onsite   An architect resource is required to support a major government body with the delivery and management of key national security capabilities. You will be working with customers, engineering and development teams to support the solution whilst providing key technical inputs and governance.   Essential Skills: Experience in relevant roles, including technologies in enterprise and virtual environments and of working within a secure environment Experience of server/operating system (Microsoft and Linux), network technologies, as a minimum Hybrid Cloud, Gateways, PKI, Email, VMware virtualisation platforms (including VCD, VSAN, and NSX), SASE architecture, Cisco Palo Alto Experience creating technical and architectural documents such as options assessments, low and high-level technical designs. DevSecOps experience in automation and improvement in development and release processes...
IR35 Status:
Inside IR35

CV-Library Milton Keynes, UK Contractor
CL
Apr 05, 2026  
Senior Technical Architect (Security)
Senior Technical Architect (Security) £550pd - £650pd DOE (Inside IR35/Umbrella) 6 Month Initial Contract Milton Keynes Hybrid - 3 days in office DV / SC Clearance ideally Are you a Technical Architect with experience of working in a secure enterprise environment? Are you DV or SC cleared? My central government client are looking for a Senior Technical Architect to support with the delivery and management of key security capabilities. You will support technical teams in delivery capabilities, providing 4th level oversight on technical issues. You will be responsible for the maintenance and development of high and low designs for product and carry out Impact assessment of functional, capability and security changes. The successful candidate will have experience of working in a secure environment. You will need experience of server/operating system (Microsoft and Linux), network technologies, as a minimum: - Hybrid Cloud - Gateways - PKI - Email - VMware virtualisation...
IR35 Status:
Inside IR35

CV-Library Milton Keynes, Buckinghamshire Contractor
CL
Apr 11, 2026  
Platform Engineer - Active SC, Oracle, Java
Platform Engineer - Active SC, Oracle, Java Up to £550 per day - Inside IR35 Hybrid 6 months My client is an instantly recognisable consultancy who urgently require a Platform Engineer with Active SC Clearance for an end client within the public sector. Key Requirements: Proven commercial experience working as a Platform Engineer within the public sector. Active SC Clearance. Experience maintaining and troubleshooting legacy applications/infrastructure, including Oracle, WebLogic, and Elasticsearch. Building and supporting CI/CD pipelines, refactoring code, and developing automated tests. Strong knowledge of Nginx, Apache Tomcat/HTTP, and ETL processes. Installing and supporting Oracle 11, including Partitioning, RAC, RMAN (PL/SQL desirable). Hands-on experience with Docker, VMWare ESX v6, and related virtualization technologies. Proficiency in Oracle Solaris 10, Red Hat Enterprise Linux 8, Microsoft Windows Server (2008/2016/2019), and IBM Initiate MDM. Nice to...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 11, 2026  
Data Engineer
Data Engineer (Pharma Background Essential) £550 per day - INSIDE IR35 6 Months Hybrid - 1 day per week in London Role Purpose We are currently looking for a Data Engineer to be responsible for designing, building and maintaining our clients data pipelines and platform infrastructure on Microsoft Fabric. Operating within a consulting model, this role deploys across engagements of varying scope and duration, delivering production-grade data solutions that meet client requirements. Required Skills and Experience Expereince of working within the pharma/lifesciences sector. Demonstrable experience building data pipelines in production environments. Proficiency with Microsoft Fabric, including Data Factory, lakehouses, warehouses, notebooks and semantic models. Strong skills in PySpark, Spark SQL and T-SQL for data transformation. Experience with medallion architecture or equivalent layered data processing patterns. Working knowledge of OneLake, delta tables and Fabric capacity...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 11, 2026  
SAP PEO Solution Architect
SAP PEO Solution Architect - Active SC, SAP, PEO £Market Rate (Inside IR35) Remote / London 6 months We are seeking an experienced SAP PEO Solution Architect, with Active Security Clearance (SC) to provide strategic advisory services on leveraging SAP for advanced manufacturing solutions within a complex engineering environment. Key Requirements: Proven experience as a SAP Solution Architect ideally within the Defence sector Active Security Clearance (SC) Deep knowledge of SAP PEO and its role within manufacturing solutions Strong experience in SAP S/4HANA architecture and PLM integration (Teamcenter / PLMSi). Ability to advise at a strategic level, not just technical delivery. Nice to have: Flexibility to get to office Experience within engineering/manufacturing If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 11, 2026  
IT Systems Administrator
IT Systems Administrator Initial 3-month contract (opportunity to go permanent) £200-£230pd (Inside IR35) Hybrid – 2 Days a week in central London   We are looking for a skilled and proactive IT Systems Administrator to join our team. This is an exciting opportunity for someone with strong infrastructure and networking experience to support and maintain a modern IT environment.   Key Responsibilities Manage and support IT infrastructure, including servers, networks, and cloud services Administer Microsoft environments, including Active Directory, Group Policy, and server roles Maintain and support Microsoft Azure, Office 365, SharePoint, and Hyper-V Configure and troubleshoot networking components such as switches and Wi-Fi access points Support DNS, DHCP, and printing services Provide technical support and resolve infrastructure-related issues Assist with system upgrades, installations, and ongoing maintenance  Key Skills & Experience Excellent communication skills with...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 11, 2026  
Microsoft EUC Specialists
Contract Opportunities – Microsoft EUC Specialists (O365 / Intune / SCCM) – London (Hybrid) – ASAP Start Our client is currently hiring multiple experienced Microsoft End User Computing (EUC) specialists to support a large-scale enterprise environment. These are initial 6-month contracts with strong potential for extension. 📍 Location: Central London (3 days onsite / 2 days remote) 📅 Start Date: ASAP 📄 Contract Length: 6 months 💼 Engagement: Inside IR35, day rate TBC (dependent on experience) Available Roles: 🟦 O365 Engineer (L2/L3 Support) You will be responsible for administering and supporting the Microsoft 365 ecosystem, ensuring secure and reliable collaboration services across the organisation. Key Skills: * Exchange Online (mail flow, transport rules, anti-spam) * SharePoint Online & OneDrive administration * Microsoft Teams governance and support * Azure AD / Entra ID (MFA, Conditional Access) * M365 Security &...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 11, 2026  
Head of Cyber Security
Head of Cyber Security 13 Week Contract Hybrid Working - Locations in London, Manchester and Bristol Inside IR35 £850-£900 per day Active SC required Change-IT are looking for a Head of Cyber Security to cover Paternity leave for 3 months. This role can be based in either London, Bristol or Manchester and will work under hybrid patterns. This role is Inside IR35, paying between £850-£900 per day. Experience Required: * Proven experience in a senior cybersecurity role, preferably within a large organisation or government setting * Strong knowledge of cybersecurity principles, practices, and technologies * Demonstrable ability to develop and implement effective cybersecurity strategies * Experience in managing and leading a cybersecurity team * Excellent communication and interpersonal skills, with the ability to influence and engage stakeholders at all levels * Familiarity with risk management frameworks and incident response protocols * Strong...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 10, 2026  
SC Solutions Architect CGEMJP00334895
Role Title: Solutions Architect Duration: contract to run until 30/06/2026 Location: Hybrid (no set number of days to be anywhere, just attending for required meetings in London) Rate: up to £740 p/d Umbrella inside IR35 Clearance required: Sole UK National and Active SC with a government agency used within the last 6 months Role purpose / summary Cloud Architecture & Design Design end-to-end AWS cloud solutions aligned with business, security, and operational requirements. Develop high-level and low-level architectural documentation (HLDs, LLDs, diagrams, patterns, standards). Apply the AWS Well-Architected Framework to ensure solutions are secure, cost-efficient, reliable, and scalable. Select appropriate AWS services and define integration patterns across compute, network, storage, data, and application components. Technical Leadership Provide architecture guidance to engineering teams throughout the delivery lifecycle. Lead technical design workshops, discovery...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 10, 2026  
Senior Software Engineer
Senior Software Engineer – Python/C++ - London Inside IR35 - £650 - £900 a day – April Start Hexwired Recruitment has recently partnered with a highly successful solutions provider based in London now seeking Several Senior Software engineers with experience using C++ and/or Python for Digital Transformation projects. This is a government level project, will last at least a year and you will be working in the national security space. Due to the nature of the role, the work is in onsite in London. Candidate must already have Active DV clearance. Key Skills * Degree in CS, Maths, Physics or similar * 5+ years C++ or Python experience * Previous experience working on Digital Transformation projects * Experience working to CI/CD processes * Previous experience working on Defence, NI and Government projects * Active DV clearance is essential Inside IR35, flexible on rate and looking for starters in April. If you’re interested, please apply. For more information...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 10, 2026  
Senior Software Developers
Senior Software Developer (Contract) Rate: Up to £500 per day (Inside IR35) Duration: Initial 3-month contract (starting ASAP) Location: Remote (UK-based)   A client of ours is seeking experienced Senior Software Developers to join their team on an initial 3-month contract.   Key Responsibilities Design, develop, and maintain scalable software solutions Collaborate with cross-functional teams to deliver high-quality products Contribute to architecture decisions and best practices Work within cloud-based environments and modern development frameworks  Required Skills & Experience Strong experience with Java and Spring Boot Working knowledge of Kotlin and/or Node.js Hands-on experience with AWS Familiarity with Amazon EKS and associated tooling Experience with Terraform or other Infrastructure as Code (IaC) tools Government industry experience   Additional Requirements Experience working within government environments is highly desirable Active SC clearance, or eligibility to...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 09, 2026  
IT Compliance and Audit
Tier 1 Bank - Regulatory Reporting Team Role - IT Compliance and Audit Duration - 6 months with very likely extension Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office Rate - £415 per day (Inside IR35) Role IT Compliance Support Engineer to join a development team and act as the primary liaison with internal/external audit, compliance, and IT security counterparts. This role combines governance with technical capability-supporting audits, demonstrating IT controls, and troubleshooting or coordinating resolution of issues across Azure DevOps pipelines, ServiceNow change management, and Jira requirement workflows. You will help us evidence good practice, reduce audit friction, and improve developer productivity by ensuring our controls are both effective and practical.Tasks Audit & Compliance Liaison Act as the single point of contact for internal/external audit, compliance, and IT security. Handle audit requests, walkthroughs, and create timely...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 09, 2026  
C# Developer - Desktop Applications
Global bank based in Canary Wharf. Role - C# Developer - Desktop Applications Duration - 6 months with likely extension Rate - £415 p/d (inside IR35) Location - Hybrid / Canary Wharf Tech Stack C# WPF Winforms SQL OracleTasks Tasks range from understanding business requirements, designing application structures, business data analysis, programming WPF (Windows Presentation Foundation) applications in Visual C#.NET on both Oracle and SQL Server database, testing with users, implementation through Development, Quality Assurance (QA), Production and Disaster Recovery environments. Supporting users and writing operation documents including User Helps (manuals) will also be required. As well as application development, this role will also include all aspects of system constructions and support for existing programmes which are written as WinForms (C#.NET) applications. Also, applications written in other languages like MS VBA for Excel and Access, MS VB and MS Excel Macros will...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 09, 2026  
Collibra Integration Engineer
Collibra Integration Engineer Role - Hybrid / Canary Wharf - 6 month Contract - Banking Tier 1 Bank - Regulatory Reporting Team Role - Collibra Integration Engineer Duration - 6 months with very likely extension Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office Rate - £415 per day (inside IR35) Tasks Administer and maintain the Collibra platform from an IT engineering perspective, including configuration, health monitoring, troubleshooting, and performance management across EMEA environments. Configure, schedule, and manage integrations using DIP/CDQ, EDGE, and Lineage Harvester, ensuring consistent ingestion of metadata, schemas, and lineage from multiple data sources. Perform connectivity and prerequisite validation with Application teams, ETL teams, and DBAs, including driver installation, credential management, network/firewall requirements and technical onboarding for new data sources. Investigate and resolve incidents related to Collibra...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 09, 2026  
Java Developer, Contract, Inside IR35
Java Developer Contract: 12 months Rate: £600 per day (Inside IR35) Location: UK (Remote some days in London, Manchester or Leeds (adhoc) This role sits within a large-scale NHS digital transformation programme delivered via a leading consultancy partner. The programme focuses on modernising critical healthcare systems, improving access to services, and enabling seamless integration across national and local platforms. The work involves building scalable, secure, and interoperable digital services that support high-volume user interactions and integrate with multiple systems across the healthcare ecosystem. The Role As a Java Developer, you will be responsible for designing, building, and maintaining high-quality backend services within a complex, distributed system. You will work closely with product, architecture, and engineering teams to deliver robust, scalable solutions that meet both user and system requirements. Key Responsibilities * Design, develop, and...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Apr 09, 2026  
Security Architect
Security Architect (6 month Contract) - £700 to £800pd (Inside IR35) - London (Hybrid once per week) I am currently looking for a Security Architect to provide senior technical leadership in the design and implementation of secure systems, ensuring security is Embedded into enterprise, cloud, and application architectures.  Key Skills needed Significant experience designing secure enterprise or cloud architectures. Strong knowledge of cloud security (eg, AWS, Azure, or GCP). Experience with security architecture frameworks and threat modelling methodologies. Understanding of identity and access management, network security, and data protection. Ability to advise stakeholders and guide technical teams on security best practices. Desirables - Certifications in: CISSP, SABSA, TOGAF, Cloud security (eg, AWS Security, Azure Security)If interested and feel yourself well suited, please reply with your latest CV and I will be in touch to discuss in more detail
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
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