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Lead the design of high-integrity PLC control systems at the heart of the UK’s most regulated and safety-critical environments. Senior/Lead PLC Control systems engineer 12 month contract – rates DOE Office-based with a Hybrid working scheme. Inside IR35 2 openings available in either Warrington, Cumbria and Stockton Role Description We are seeking an experienced PLC Control Systems Engineer to design, develop, implement, and test high-integrity PLC-based control systems within a regulated engineering environment. This role offers exposure to complex control systems, cyber-secure architectures, and highly regulated industries such as Nuclear. Key Responsibilities • Design, develop, implement, and test PLC-based control systems to agreed engineering standards., • Produce high-quality engineering documentation, including:, • User Requirement Specifications (URS) and Requirements Traceability Matrices (RTM), • System and Functional Design Specifications (SDD/FDS), • Software System Specifications (SSS) and Test Specifications (Module, Integration, System, Hardware), • Operation & Maintenance Manuals (O&M), • System rebuild documentation and I/O, alarm, and message schedules, • Project Lifetime Records and Material Traceability Records Support the Lead Engineer and Project Manager by: • Maintaining delivery schedules, • Reporting technical issues, scope changes, and programme variations, • Program PLC platforms (Rockwell, Schneider, Siemens) using IEC 61131 languages, producing robust function blocks and logic aligned with design documentation and engineering standards., • Collaborate with HMI/SCADA and database engineers to define control system architectures, including:, • Network Architecture Diagrams, Interface documentation and Cyber-secure SCADA integration, • Conduct formal in-house Factory Acceptance Testing (FAT), ensuring strict change control and traceability., • Support Site Acceptance Testing (SAT) and commissioning activities when required., • Contribute to installation and commissioning documentation, operator and maintainer training, and post-delivery technical site support., • Interpret and work with engineering drawings related to PLC cubicles, enclosures, and interface panels, identifying design constraints and site impacts., • Engage with engineering teams and stakeholders to deliver high-quality, compliant PLC solutions. Essential Experience • Significant experience designing and implementing PLC control systems., • Strong knowledge of IEC 61131 PLC programming languages, PLC hardware/software, and industrial communication protocols., • Demonstrable experience within the EC&I industry, preferably within Nuclear., • High attention to detail with a focus on accuracy, reliability, and quality., • Proven experience producing:, • Functional and detailed design documentation, • Formal test specifications, • Experience performing structured testing, validation, and verification activities., • Excellent fault-finding and troubleshooting capability across complex control systems., • Good understanding of engineering drawings (electrical enclosures, control panels, MCCs, etc.)., • Excellent written and verbal communication skills., • Strong technical documentation skills and proficiency with Microsoft Office. Desirable Experience • Experience in highly regulated industries (Nuclear, MOD, Pharmaceutical)., • Hands-on experience with Rockwell ControlLogix and/or Schneider M580 PLCs., • Familiarity with integrated HMI and SCADA systems., • Experience with OT Cyber Security and cyber-secure system design., • Delivery experience aligned with BS 61508 and/or BS 61511 (Functional Safety). Essential: • Membership of a relevant professional institution (e.g. IET)., • Certified training on Rockwell and/or Schneider PLC systems., • Certified Cyber Security training. Company information At First Recruitment Group we understand just how important it is to secure the right people. That is why our Recruitment Consultants always take the time to understand requirements in detail and offer sound advice to both clients and candidates. We actively recruit at all levels and this is a superb opportunity for a Control Systems Engineer looking for new employment. As part of putting people first, we strive to be an equal opportunities employer and we are always looking to increase the diversity of our workforce, working closely with our clients to ensure everyone is included.

About us Halon is an email security and infrastructure company, driving innovation in secure and dynamic email operations for service providers and enterprises worldwide. Trusted by the most innovative enterprises across the globe, Halon offers email solutions that are easy to modify, configure, and run. With a proven track record across six continents and an industry-leading NPS of 75, Halon enables email teams to deliver modern experiences, go to market 10x faster, and reduce the total cost of email operations without sacrificing ease or control. Backed by private equity and in growth mode, we’re now looking for a Sales Engineer. Main Responsibilities: • Collaborate with the Enterprise Sales Representative throughout the full sales cycle, from discovery to closing, providing technical expertise and solution design., • Understand customer challenges and translate them into tailored technical proposals and demonstrations., • Lead technical presentations, workshops, and product demos for key stakeholders and decision-makers., • Develop and maintain a deep understanding of our product portfolio, integrations, and deployment options., • Work with Product and Engineering teams to ensure customer feedback shapes roadmap and feature development., • Support RFP and tender processes with precise technical documentation and compliance input., • Ensure seamless handover from pre-sales to post-sales, maintaining customer confidence throughout the process. What We’re Looking For: • Experience as a Sales Engineer, Solution Consultant, or similar pre-sales technical role, ideally in Cyber Security, SaaS, email, or infrastructure-related industries., • Strong ability to communicate complex technical concepts to both technical and non-technical audiences., • Proven track record supporting sales into public sector clients or large enterprise environments., • Collaborative mindset: you enjoy working closely with sales, product, and customer success teams.

Founding Sales Engineer High-Growth Cyber Security Startup 📍 Location: United Kingdom (Remote) 💰 Compensation: £80,000 - £85,000 Base, + Bonus (Uncapped) + Strong Equity We’re hiring a Founding Sales Engineer to join a rapidly growing cybersecurity organisation and play a critical role in how customers evaluate, adopt, and succeed with a modern security platform. This role sits at the intersection of sales, engineering, and security strategy, supporting complex buying journeys across cloud-first and application-driven security environments. You’ll partner closely with the Sales Leader, CEO and Engineering to guide prospects through technical discovery, demonstrations, and proof-of-value engagements. This is a strong opportunity for a security-minded technologist who enjoys customer interaction, technical storytelling, and influencing security outcomes at scale. The Role As a Sales Engineer, you will be the trusted technical advisor throughout the sales cycle, supporting mid-market and enterprise customers evaluating cloud and application security solutions. You’ll lead technical conversations, demonstrate real-world value, and help security and engineering teams understand how the platform fits into their architecture, workflows, and risk models. You’ll also contribute to refining technical messaging, demo strategy, and feedback loops as the business continues to scale. Own the technical close • Run deep technical discovery: customer environment, workflows, tooling, constraints, success criteria., • Design and deliver tailored demos aligned to the customer’s problem and technical reality., • Lead workshops (security + engineering) to validate fit and map value to customer process., • Drive Technical Close outcomes and document them cleanly (customer confirms “technically approved / no blockers” OR POC success criteria met OR feasibility validated). Run POCs that win • Define POC plan, scope, and measurable success criteria., • Coordinate with customer stakeholders (security, platform, dev leads) to unblock access and integrations., • Turn POCs into proof, not experiments: crisp outcomes, quantified value, clean story for the AE to close. Be the “credibility layer” in complex security deals • Handle architecture, integration, and deployment conversations with confidence., • Address security posture questions (data handling, deployment models, access patterns, compliance context) with clarity and honesty., • Translate differentiators into customer language: prioritization, reachability/context, ownership, operational workflow impact. Earn and own the customer trust from pre to post sale • Keep CRM hygiene tight: next steps, risks, decision-makers, technical close artifacts., • Build reusable demo assets, reference architectures, and POC templates., • Feed product reality back to engineering: friction points, missing integrations, messaging that resonates.

My client is a leading organisation in Secure communications and Data at Rest domain! They are expanding their UK team to support multiple Cyber and Information Assurance development projects. The company is seeking an experienced FPGA Design Engineer to join a fast-paced, multi-disciplinary environment focused on both standard products and bespoke secure digital design solutions. This role involves full lifecycle ownership of FPGA solutions-from requirements and architecture through implementation, verification, and production. The position covers complex FPGA designs incorporating both industry-standard and custom protocols. Key Responsibilities include - * Own the delivery of FPGA solutions from requirements through to production. * Lead the elicitation and interpretation of requirements for FPGA implementations. * Define FPGA architecture in collaboration with the wider development team. * Work alongside Project Managers to plan and deliver against project timelines. * Coordinate other FPGA engineers when required. * Liaise with external FPGA and IP suppliers. * Develop test benches and perform in-system testing. * Contribute to proposals, estimations, and technology roadmaps when needed. Essential Skills & Experience - * Proven track record delivering FPGA designs across the full development lifecycle. * Strong VHDL skills for FPGA design and verification. * Experience optimising designs for performance and power efficiency. * Experience debugging and integrating FPGA solutions in hardware. * Proficient with configuration management tools. * Experience with Microchip devices and Libero for design synthesis (advantage). * Experience verifying HDL using ModelSim or Questasim (UVM beneficial). Desirable Skills - * Requirements analysis and management (e.g., DOORS). * Experience with SmartFusion, PolarFire or Igloo devices. * Knowledge of PCIe NVMe implementations in FPGA. * Experience with Xilinx or Altera devices/toolchains. * Familiarity with 3rd-party IP integration. * Design for security principles. * Embedded firmware development (C/C++/assembler). * Understanding of cryptographic algorithms and standards. * Experience integrating FPGAs within larger hardware platforms. If you're interested in this role, then please apply. I will reach out to you via phone call to discuss further! Desired Skills and Experience FPGA Development, FPGA Engineer, Firmware Engineer, Full lifecycle, Requirements, Architecture, Coordination, Test bench development, VHDL, Xilinx, Power dissipation, Integration, Debugging, HDL, Modelsim, Questasim, DOORs, Altera, 3rd party IP, C, C++, assembler.

Graduate Software Engineer Permanent role Based in Tewkesbury Offering £45,000 Do you have experience in Software Development in C++? Do you have a degree in a related discipline? If your answer to these is yes, then this could be the role for you! As the Graduate Software Engineer, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry. You will be involved in: • Developing software for cyber security systems;, • Developing novel signal, image, or data processing applications;, • Developing solutions in C/C++, HTML, Typescript/Javascript, Python, and Rust;, • Providing support and training to our customers in using the software. Your skillset may include: • Be self-motivating, capable of working independently, • Have a strong academic background, • Have strong verbal and written presentation skills, • Have software development experience, preferably in C/C++ If this all sounds like something you will be interested in then simply apply and we can discuss the opportunity further!

OT Cyber Security Engineer Hampshire Hybrid Working £50k-£60k + Benefits My client based in the Hampshire area are a innovative IT services and solutions company who are looking to recruit a OT Cyber Security Engineer. OT Cyber Security Engineer Responsibilities: Act as a trusted adv

Join Police Digital Service as NMC Cyber Security Engineer.

New Permanent Opportunity for Cyber Software Engineers in Gloucester with Security Clearance to work on Mission-Critical, National Security projects. Cyber Software Engineer - SC / DV / eDV Cleared.

Our cyber security engineers build and develop the technical security solutions that keep our airline and our customers safe from cyber-attack. Cyber Security Engineer – Identity and Access Management. Recognised cyber security certifications or qualifications (desirable).

A leading investment firm in Greater London is seeking a Senior Cyber Engineer to enhance security for identity, devices, and cloud platforms. This hands-on role involves managing security engineering projects from design to implementation in Microsoft 365, Azure, and Salesforce environments.

Our cyber security engineers build and develop the technical security solutions that keep our airline and our customers safe from cyber-attack. Cyber Security Engineer - Network Security. Recognised cyber security certifications or qualifications (desirable).

A leading organisation in the Bristol area is seeking an experienced Infrastructure Engineer focused on Cyber Security. In this hands-on role, you will apply your technical skills in a multi-platform environment, ensuring security standards are met.

A leading airline is looking for a Cyber Security Engineer focused on endpoint protection. This role involves designing and building security tools to protect the airline from cyber threats, while continuously assessing the technical landscape for effective protection. It's an opportunity to make a

Cyber Security Engineer (Hedge Fund) - Python/Powershell/SQL/Tableau BI/NIST/CISSP/CISA - PERM. Demonstrated experience working with information technology, information security, compliance, legal, business teams, and clients to assess and document security risks and compensating controls. Conduct c

A leading engineering consultancy in London seeks a Specialist Cyber Security Principal Engineer to engage with clients and provide recommendations for their security systems.

A leading engineering company in the United Kingdom is seeking a Senior Cyber Security Engineer for a 12-month contract. The ideal candidate will engage with clients, manage security requirements, and lead security testing efforts. This role requires expertise in security architecture and risk asses

A leading engineering consultancy in the United Kingdom is seeking a Product Cyber Security Engineer to support cyber security activities within the Aerospace sector. Candidates should possess a relevant degree and experience in cyber security and risk management. This role involves securing complex

A leading technology firm in the United Kingdom is seeking a Mid-Senior Software Engineer passionate about Cyber Security. NETCore, and an interest in Cyber Security. In this hybrid role, you'll collaborate with a fantastic team to build secure software solutions, conduct system assessments, and dev

Cyber Security Engineers are expected to have a broad understanding of security principles, and be able to communicate and support other teams in the design and deployment of security and robust systems. You will be responsible for helping to build out and deploy security automation, harden security

A cyber security managed services provider in the United Kingdom is seeking a Technology Engineer to lead cyber defence efforts and manage security across client operations. Candidates should possess relevant experience in cybersecurity and be prepared to travel to client sites as needed.

A leading firm in cyber security is seeking a Cyber Security Engineer to provide technical advice, conduct risk assessments, and collaborate with clients and stakeholders. This is a permanent role based in Central London, offering an opportunity to work on cutting-edge security challenges in the fin

Familiarity with Cyber Essentials Plus, NIST 171‑800 and CMMC cybersecurity frameworks, or other similar internationally recognised frameworks. Develop a professional network within the cybersecurity community and maintain working knowledge of the latest cybercrime tactics and countermeasures. As

We require a Specialist Cyber Security Principal Engineer to work within the newly formed Cyber Security Specialist department with the following attributes:. Digital Solutions Group is a team of passionate and meticulous designers, including specialist engineers from IT, Communications, Audio‑vis

A growing technology consultancy is seeking a Professional Services Consultant (Cyber Security Engineer) to join their team in a fully remote role.

You’ll work across multiple customer environments, handling cyber security tickets, monitoring security platforms, and supporting customers in improving their overall security posture. Cyber Security Engineer – Managed Service Provider. Managing cyber security alerts and incidents.

Our Capability Development team develops bespoke end-to-end solutions for clients in the Cyber Security domain. You’ll also help drive our engineering processes to maintain code quality while balancing realistic delivery timescales and client requirements. This vacancy is for experienced software

The Cyber Security Cloud Engineer ensures this growth remains secure, visible, and compliant by embedding security into every layer of our cloud stack. The Cyber Security Cloud Engineer is responsible for securing, monitoring, and optimising Ocean Infinity's global cloud estate. Mentor and support C

The OT Cyber Security Engineer will contribute to the delivery of high-quality technical consultancy services within high-hazard industries, including oil and gas, power, water, chemical, and pharmaceutical sectors. The Engineer will also assist in developing and reviewing OT Cyber Security Manageme

As our Microsoft Cyber Security Engineer, you'll be a key member of Cadent's cyber security engineering team, focused on designing, implementing, and integrating security solutions across both IT and OT environments. Experience operating in SOC or cyber security operations environments. This is a ha

A leading technology organization in the United Kingdom is seeking a Senior EC&I Engineer with 10-15 years of design experience in the building services industry. The role requires proficiency in AutoCAD, AMTECH, Dialux, and Relux, as well as knowledge of Safety and Security Systems. Candidates must

A leading airline is seeking a Cyber Security Engineer - Network Security to develop technical solutions in safeguarding operations against cyber threats. The role involves designing tools to mitigate risks, maintaining a robust security posture, and staying current with industry trends. Applicants

As a leader in investment banking and various financial services, the firm's Cybersecurity & Technology Controls (CTC) group partners with all business lines to enhance cybersecurity, access management, and controls. Interface with wider CTC teams ensuring platform integration with security operatio

XPS Cyber Security is an expanding team made up of internal cyber security engineers and cyber security operations analysts with an external 24/7 Security Operations Centre. Our Cyber Security business continues to grow and we are now looking for an experienced Senior Cyber Security Engineer to join

A leading airline in the UK is seeking a Cyber Security Engineer to enhance security measures in identity and access management. The role involves designing security solutions, assessing risks, and staying updated on industry trends.

Cyber Security Infrastructure and Network Engineer – Cyber Direct Entry. Cyber Security Infrastructure and Network Engineer. Professional certifications such as CEH, OSCP, or CompTIA Security+ are desirable, as is knowledge of cybersecurity frameworks (e.

Design and deploy OT cybersecurity solutions and tools (IDS, secure remote access, endpoint security, and vulnerability management) using platforms such as Nozomi Networks, Fortinet etc. OT Cyber Security Engineer Benefits:. OT Cyber Security Engineer Key Skills:.

A leading IT services company in Hampshire is seeking an OT Cyber Security Engineer to develop and implement cybersecurity strategies in a hybrid working model. Candidates should have over 3 years of experience in IT/OT cybersecurity, with knowledge of IEC 62443 and excellent problem-solving skills.

This offers a unique opportunity to join a cyber security team and work in a varied security engineer role that will see you perform; customer security assessments to review their posture in line with cyber essentials plus, manage security alerts, take security support needs from the service desk te

IT/OT cybersecurity qualifications such as CompTIA Security+, SANS GICSP, CISSP, or equivalent. As an OT Cyber Security Engineer you will be working in a hybrid model of 3 days in the office and 2 days WFH. Design and deploy OT cybersecurity solutions and tools (IDS, secure remote access, endpoint s

A technology consultancy is seeking a Cyber Security Engineer to join their expanding IT team, offering competitive salary and benefits including private medical insurance and pension contributions. The role involves maintaining security processes, advising on security measures, and participating in

Our cyber security engineers build and develop the technical security solutions that keep our airline and our customers safe from cyber-attack. Cyber Security Engineer - Identity and Access Management. Recognised cyber security certifications or qualifications (desirable).

Position Summary: We are seeking a highly skilled and proactive Cybersecurity Engineer to join a dynamic security team. The ideal candidate will play a critical role in defending the organization against cyber threats by managing and improving the Security Operations Center (SOC), responding to inci

Demonstrable experience in cyber security engineering with a strong track record of defining best practices and execution, including information security risk management. In this role you will establish and drive the security engineering strategy & capability within the Information Security (‘Info

A leading cybersecurity consultancy in Greater London is seeking cyber professionals to join their expanding Cyber Practice. Candidates at all levels are encouraged to apply, particularly those with expertise in Security Operations, Industrial Security, and Cyber Security Architecture.

We are looking for an Operational Technology Engineer in Cyber Security or a Control Systems Engineer with OT Cyber Security experience who will contribute to the delivery of high‑quality technical consultancy services within high‑hazard industries, including oil and gas, power, water, chemical,

We are looking for an ambitious Cyber Security Engineer to join us and work with the watchTowr Labs to expand our offensive security capabilities, in our mission of helping organisations understand how they could be compromised in real‑time. Understand common vulnerabilities and weaknesses on appl

A leading UK consulting firm is seeking a Senior Cyber Security Engineer to join their expanding team. This hybrid role involves providing technical security guidance and managing vulnerability programs while collaborating closely with other team members. Ideal candidates will possess extensive know

A leading Insurtech company is seeking a Cyber Security Engineer to improve IT security systems. Responsibilities include conducting vulnerability assessments, implementing new security measures, and collaborating across teams to ensure compliance. The ideal candidate has expertise with Microsoft se