4Square Recruitment Ltd

Cyber Security Engineer Location: Leeds City Centre (Hybrid: 3 days in the office, 2 days remote) Job Type: Full-Time Reports To: Security Operations Manager Salary: £30,000 - £45,000 + On-Call Allowance + Benefits Working Hours: 09:30-18:00 (core business hours are 08:00-18:00) On-Call: 1-in-4 rotation with allowance, providing 24/7 coverage Company Overview The team supports a broad range of cutting-edge security technologies, helping customers secure their networks, applications, and infrastructure through proactive monitoring, management, and incident response. As demand for managed firewall and security services grows, my client is looking for a Cyber Security Engineer with strong networking fundamentals and a willingness to learn advanced security technologies. This role is ideal for someone with 1-2 years of experience who wants to develop their skills in a supportive, growth-focused environment. Role Overview As a Cyber Security Engineer within the Security Operations Center (SOC), you will help manage and support customer network security environments. You'll work on firewall configurations, troubleshooting, and incident response, while gaining exposure to SIEM tools and advanced security solutions. Full training and development opportunities will be provided. Key Responsibilities Monitor and manage client firewalls, VPNs, and network devices using centralized monitoring platforms and vendor tools. Perform firewall rule changes, security policy updates, NAT and routing modifications across Fortinet, Check Point and Palo Alto devices. Investigate and troubleshoot connectivity, performance, and security issues across client networks. Respond to alerts, incidents, and service requests, escalating where necessary in line with SLAs. Conduct routine maintenance and health checks on firewall appliances and associated infrastructure. Document changes, issues, and resolutions in the ticketing system and provide status updates to clients as needed. Collaborate with internal SOC and engineering teams to resolve complex incidents. Gain exposure to SIEM alert triage and basic investigation using Microsoft Sentinel or LogPoint (training provided). Essential Skills & Experience 1-2+ years of experience in a networking or firewall support role (or equivalent hands-on experience). Strong understanding of networking fundamentals: TCP/IP, routing, NAT, VPN, DNS, VLANs. Basic exposure to firewall technologies (Fortinet or Check Point preferred). Ability to troubleshoot connectivity issues using tools like ping, traceroute, and log analysis. Familiarity with ticketing systems and remote monitoring tools. Strong communication and documentation skills. Desirable Skills & Experience Hands-on experience with Fortinet FortiGate and/or Check Point SmartConsole. Exposure to SIEM platforms (Microsoft Sentinel, LogPoint) or SOC environments (training provided). Relevant certifications (e.g., Fortinet NSE4, Check Point CCSA, CompTIA Network+/Security+). Knowledge of ITIL processes and service management best practices. Familiarity with cloud networking and security (AWS, Azure). Awareness of scripting or automation (Python, PowerShell). Why Join? Be part of a fast-growing cybersecurity business with a strong technical reputation. Gain exposure to enterprise-level network environments and leading firewall vendors. Work alongside experienced security professionals in a supportive team. Opportunities for training, certifications, and long-term career growth. Hybrid working model, on-call rotation bonuses, and a comprehensive benefits package.

Software Developer required for my client near Petersfield, Hampshire. This role requires 1 day a week on-site. In this role you'll be joining a team of 4 working on an existing platform, fixing bugs, doing enhacements etc Required Skills: C# ASP.NET MVC Entity Framework SQL

Software Developer required for my client near Petersfield, Hampshire. This role requires 1 day a week on-site. In this role you'll be joining a team of 4 working on an existing platform, fixing bugs, doing enhacements etc Required Skills: C# ASP.NET MVC Entity Framework SQL

Technical Support Engineer Location - Farnborough Hybrid working I'm looking for a Technical Support Engineer to join a team in Farnborough . If you're someone who loves solving technical problems, enjoys working with people, and takes pride in delivering excellent service - this could be a great fit. You'll play a key role in supporting our clients, diagnosing and resolving issues, and keeping systems running smoothly. What You'll Be Doing Diagnosing and troubleshooting technical issues across hardware, software, and networks. Talking customers through solutions and providing clear, professional support. Following up to make sure every issue is properly resolved. Working closely with our Customer Service and Field teams to deliver a fast, efficient response. Helping to improve how we work by sharing ideas and best practices. What I'm Looking For Experience in a technical support or similar IT role. Knowledge of networking, cloud, security, or data centre technologies. Some understanding of HTML, CSS, and JSON is a bonus. Strong communication and problem-solving skills. Someone who's motivated, calm under pressure, and passionate about great customer service. You'll also need to be able to obtain security clearance (details provided during the process). Why Join? You'll be part of a team that values openness, collaboration, and continuous learning. If you want to work with leading technology, make a genuine impact for clients, and grow your career in a supportive environment - I'd love to hear from you.

VISA SPONSORSHIP IS NOT ON OFFER. Full Stack Developer (Python, React.JS, GraphQL, TypeScript) required for my client in Guildford (2-3 days a week on-site). Paying £40k-£70k. In this role you'll be part of an agile software development team of 6 developing Web Applications on frontend & backend (Python). Required experience: Min 3 years as a Full Stack Web Developer Experience writing Python Experience with React.JS, TypeScript highly beneficial GraphQL APIs

.NET Developer Location: Southall Hybrid working Flexible hours Employment: Permanent, Full-time Reports to: Director The opportunity A well-established technology team is seeking a .NET Developer to build and enhance cloud-hosted applications used by enterprise customers. The successful candidate will contribute across the stack, from ASP.NET Core front ends to EF Core and Azure-hosted services, and will ship via modern CI/CD pipelines. What the role involves Deliver robust, performant features in C# / .NET 6-8, meeting functional and non-functional requirements. Build web UIs with ASP.NET Core (MVC, Razor Pages, or Blazor) and refine with JavaScript, jQuery, Bootstrap, CSS/LESS. Design and implement data access with EF Core (code-first); write pragmatic SQL where needed. Create and maintain unit tests (xUnit) and contribute to high-quality, repeatable releases through Azure DevOps pipelines. Collaborate with product, delivery, and QA; estimate accurately, communicate risks early, and support production issues when required. Tech you'll work with Front end: ASP.NET Core 6-8 (MVC, Razor Pages, Blazor), JavaScript, jQuery, Bootstrap, CSS/LESS, Node/gulp Back end: .NET 6-8 (C#), EF Core (code-first), SQL (Azure SQL, LocalDB, SQLite for tests) Toolchain: Visual Studio 2022, Git, .NET SDK/CLI, NuGet, npm, gulp, xUnit, Azure DevOps (Repos, Boards, Pipelines, Artifacts) Cloud: Microsoft Azure Approved libs: jQuery 3.x, Bootstrap 4.x, Hammer.js, muuri, popper.js, web-animations-js, DevExpress 24.1.13 What they're looking for (essentials) Commercial experience with C# / .NET (6-8) delivering production systems. Strong ASP.NET Core skills (one or more of MVC / Razor Pages / Blazor). Proficiency with EF Core (code-first) and relational design; sound SQL fundamentals. Testing mindset (xUnit or similar) and familiarity with CI/CD in Azure DevOps. Comfortable owning features end-to-end and collaborating in Agile teams. Nice to have Azure PaaS (App Service, Azure SQL, Storage, Key Vault). Front-end build tools (Node, npm, gulp, LESS) and UI polish with jQuery/Bootstrap. DevExpress components; performance tuning (EF/SQL); experience supporting live systems. What's on offer Impactful work on cloud products used at scale. Modern tooling, clean delivery pipelines, and supportive engineering culture. Flexible working options (role-dependent).

IT Applications Specialist - Engineering Systems (CAD / PDM / PLM) Location: Guildford / Hybrid Salary: £45-60k + Benefits Security Clearance: Must be able to attain and hold National Security Vetting to SC level About the Role We're looking for an IT Applications Specialist with strong experience managing Engineering and CAD applications to join the team. This is a hands-on, technically diverse position focused on supporting and improving business-critical systems that underpin our engineering and design operations. You'll take ownership of application management, licensing, software renewals, and server updates - ensuring smooth, secure, and efficient IT performance across the business. This role offers the scope to make meaningful change: modernising systems, streamlining processes, and driving automation and efficiency through innovation. Key Responsibilities Application Support & Monitoring Provide hands-on support for internal core applications - with a focus on SharePoint Online, CAD, PDM, and PLM . Configure monitoring tools, automate alerts, and troubleshoot proactively. Manage incidents and service requests within agreed SLAs. Maintain application configurations and user security. Create and maintain standard operating procedures (SOPs). New Systems & Improvements Gather business and engineering requirements to design, plan, and deliver new solutions with vendors and end users. Implement new systems using structured change control and project management . Modernise existing applications to enhance performance, reliability, and efficiency. Server Updates & Patch Management Plan and execute server patching and update schedules (Windows / Linux). Apply critical security patches, firmware upgrades, and maintenance releases. Automate patch management processes where possible. Licensing & Software Management Maintain accurate inventories of software licenses and subscriptions. Monitor compliance, usage, and renewals. Support negotiations and cost optimisation for licensing agreements. Business & Stakeholder Engagement Collaborate closely with engineering teams and department leads to understand needs and deliver tailored solutions. Act as the key interface between IT and business functions to ensure technology aligns with operational goals. Documentation & Reporting Maintain detailed documentation for systems, changes, and troubleshooting steps. Support automation and continuous improvement initiatives through documented procedures. IT Support Provide third-line support across hardware, software, and server environments. Assist with account and access management, including creation and modification. About You Qualifications & Certifications Degree or equivalent experience in IT, Computer Science, or CAD/CAM Engineering . Certifications such as ITIL v3/4 , CompTIA A+ , Microsoft Certified: Azure Administrator , or Azure Architect (AZ300/303/305) preferred. Eligible for SC clearance . Experience Proven background in IT support and system administration within an engineering or technical environment . Experience managing CAD applications , licensing models , and hybrid environments . Skilled with Windows/Linux servers , patch management, and monitoring tools. Scripting ability (PowerShell, Bash, etc.) and familiarity with Azure environments. Knowledge & Skills Strong understanding of CAD, PDM, and PLM systems. Excellent communication and stakeholder management skills. Highly organised, self-motivated, and results-driven. Able to prioritise, problem-solve, and deliver under pressure. Flexible, adaptable, and proactive in approach. Desirable Extras Knowledge of data analytics tools (Power BI, Tableau). Familiarity with GDPR, ISO 27001 , and compliance frameworks. Basic programming knowledge (Python, Java, or C#) for automation or customisation.

Information Security Manager (3 days/week, permanent pro-rata) Location: Leeds-hybrid (on-site 1-2 day/week, typically Mon/Tue) Reports to: VP, Information Security Team: 5 in security (within a wider UK tech org of 25, multi-region) We're looking for a hands-on InfoSec Manager to take pressure off the VP, shape the control environment, and keep the security operations and compliance moving at speed. You'll blend GRC and technical oversight , working closely with two security engineers (vuln scanning/IDS, external pen-test liaison) and two GRC specialists. What you'll do Drive and extend ISO 27001 implementation/maintenance (UK certified; expanding to Madrid and Manila ). Support SOC 2 Type 2 maintenance (already accredited)-expert level not required. Oversee SIEM operations with the tech team: ensure log ingestion/coverage , daily monitoring, and follow-up. Guide vulnerability management, alert triage (Alert Logic), and external pen-test cycles. Keep evidence flows tight: client questionnaires, audit responses, security awareness, and user access reviews. About you Strong GRC grounding plus solid technical understanding (AWS-heavy environment). Comfortable being hands-on where needed; people management nice-to-have, not essential. ISO 27001 (implementation/assurance) experience; SOC 2 exposure helpful. SIEM familiarity and the ability to work with engineers on coverage, tuning, and use-cases . Stakeholder-savvy; calm under pressure; excellent written/verbal comms. Benefits (pro-rata) Bonus / Health cover / Pension Hours: 9-5 ; hybrid with 1-2 day/week in Leeds

4Square are exclusively engaged by a travel client in Slough, Berkshire to help them recruit a Software Support Analyst/Engineer. In this role you'll be supporting a number of SaaS/Web/Software applications as well as 3rd party/third party applications covering 1st-3rd line technical support. Required experience: 2+ years in a similar role supporting SaaS/Web/Software application Strong Azure Knowledge (Azure Services, Application Insights etc ) This role is working 2 days a week on-site as well as being part of a 1 in 4 support rota.

Field Technical Support Specialist Location: Field-based (UK) Department: ICT Services - Service & Support Reports to: Regional Service Manager About the Role We're looking for a skilled and customer-focused Field Technical Support Specialist to deliver high-quality technical support and maintenance to clients across our service network. This is a hands-on role requiring strong diagnostic ability, excellent interpersonal skills, and a passion for providing first-class customer service in the field. Key Responsibilities Provide professional technical support to assigned accounts within agreed service levels. Investigate, diagnose, and resolve equipment and system faults efficiently. Perform installations, maintenance, and updates as required to ensure optimal device performance. Support colleagues during installations, peak workloads, and absences. Log and maintain accurate service records within the call-logging system. Identify and escalate recurring issues to support proactive problem management. Share technical expertise and best practices with team members. Build and maintain strong relationships with customers and stakeholders. Maintain field stock at prescribed levels and ensure cost-effective stock usage. Attend training sessions to keep knowledge current and relevant. Adhere to all company, customer, and site health & safety policies and standards. Undertake any other technical support tasks as directed by your manager. Working Environment This role is field-based , supporting customers either across multiple sites or as a resident specialist embedded within a client's environment. Duties may vary depending on specific service agreements. About You Proven experience in field technical support, ideally within print, copier, or IT hardware sectors. Relevant qualification (City & Guilds or equivalent) or equivalent technical competence. Strong analytical and problem-solving skills with the ability to deliver swift, accurate solutions. Excellent communication and interpersonal skills with a focus on delivering outstanding customer service. Organised, self-motivated, and capable of working independently or as part of a team. Why Join Us You'll have the opportunity to work with cutting-edge technology and a supportive service team dedicated to continuous improvement. We offer ongoing technical training, career progression opportunities, and a collaborative, customer-driven culture.

IBM i (iSeries) System Administrator / Data Engineer Location - Hemel Hempstead Hybrid - 4 in office / 1 home Role Overview We are seeking a Technical Specialist - IBM i (iSeries) System Administrator / Data Engineer to take ownership of administering IBM iSeries environments while also driving forward key digital IT initiatives. This dual-role position blends hands-on system administration with data engineering and project delivery, ensuring business needs are met with robust, scalable, and future-ready solutions. Working closely with corporate stakeholders, divisional experts, and third-party IT vendors, the Specialist will ensure IBM iSeries environments are optimised for performance, availability, and resilience, while also contributing to wider IT transformation projects. Key Responsibilities IBM i (iSeries) System Administration Administer and support IBM iSeries systems, ensuring optimal performance, availability, and reliability , including out-of-hours (OOH) support . Manage and execute regular data refreshes to maintain data integrity and accuracy across environments. Develop, maintain, and enhance CL and RPG programmes to automate processes and improve system functionality. Produce and maintain comprehensive documentation covering configurations, procedures, and best practices. Collaborate with internal SMEs and external vendors to deliver IT solutions on time, within budget, and to specification . Skills & Experience - What We're Looking For Strong background in IBM i (iSeries) Systems Management & Administration . Experience with Backup & Recovery on IBM i systems. Working knowledge of IBM MQ Series . Proficiency in Query / SQL / Database Management . Hands-on skills in CL and RPG programming . Experience with JD Edwards is highly beneficial. Strong problem-solving ability, with excellent documentation and communication skills. Ability to work across teams and vendors, balancing BAU support with project delivery . Why Join? Opportunity to play a dual-role blending system administration and IT project delivery. Work with a collaborative team on strategic digital initiatives . Be the go-to specialist for IBM i (iSeries), helping shape technology solutions that underpin the business.

Application Support Analyst/Engineer required for my client in Maidenhead, Berkshire. This role is 2 days onsite and 3 days work from home. After your probation period you will be working 24/7 support on a 1 in 4 basis. You will be paid an extra £450 per week. In this role you'll be supporting in-house web/software applications as well as 3rd/third-party SaaS applications. You'll also be working on Software projects and general IT Support. Required experience: Minimum 12 month experience in a similar role (supporting software/web apps/SaaS is a MUST). Good working knowledge using Azure, Azure Services

Senior Penetration Tester Location: Fully Remote (UK-Based) Salary Range: £50,000 - £85,000 (dependent on experience) Position: Permanent, Full-Time My client is a dynamic and growing cybersecurity consultancy dedicated to providing top-tier security services to a diverse range of clients. They believe in empowering the team with the flexibility of remote work while tackling challenging and engaging projects that make a real difference to their clients' security posture. The Role We are seeking a highly skilled and motivated Senior Penetration Tester to join our remote team. You will be responsible for leading and executing complex penetration tests against a variety of systems, networks, and applications. The ideal candidate is not just a proficient tester but a critical thinker who can articulate risks clearly and provide pragmatic remediation advice to clients. Key Responsibilities Plan, lead, and execute sophisticated penetration tests across infrastructure, web applications, APIs, and internal networks. Conduct advanced Red Team exercises to simulate real-world adversary attacks and test organisational defences. Produce high-quality, clear, and concise reports for both technical and executive audiences, detailing findings, risks, and actionable remediation strategies. Mentor and provide guidance to junior members of the team, promoting best practices and knowledge sharing. Collaborate with clients to scope engagements, present findings, and provide expert advice on mitigating identified vulnerabilities. Stay abreast of the latest security vulnerabilities, attack vectors, tools, and methodologies. Contribute to the continuous improvement of our testing methodologies and service offerings. Essential Skills & Qualifications Must hold active CREST Certified Tester (CRT) certification. (Non-negotiable) Proven commercial experience in a penetration testing role. Deep technical knowledge of networking protocols, operating systems (Windows, Linux), and common infrastructure vulnerabilities. Strong experience in web application penetration testing (OWASP Top 10). Proficiency with common penetration testing tools (e.g., Burp Suite Pro, Metasploit, Nmap, Cobalt Strike, etc.). Excellent written and verbal communication skills, with a proven ability to write detailed technical reports. A proactive and self-motivated attitude, capable of working effectively in a fully remote environment. Desirable Skills & Qualifications Experience with or knowledge of implementing Cyber Essentials and Cyber Essentials Plus schemes is highly desirable. Additional certifications such as: CREST Certified Simulated Attack Specialist (CCSAS) / Certified Simulated Attack Manager (CCSAM) Offensive Security Certified Professional (OSCP) Certified Information Systems Security Professional (CISSP) SANS GIAC Penetration Tester (GPEN) or Web Application Penetration Tester (GWAPT) Experience in mobile application (iOS/Android) testing, cloud security (AWS/Azure/GCP), or social engineering. Experience scripting in Python, PowerShell, or Bash to develop custom tools or exploits. What We Offer A competitive salary of £50,000 - £85,000 . Fully remote working - work from anywhere in the UK. A supportive and collaborative culture with a strong focus on professional development.