DI Jobs
  • Home
  • Search Jobs
  • Job Board Advertising Packages
  • Post a Job
  • Sign in
  • Sign up
  • Home
  • Search Jobs
  • Job Board Advertising Packages
  • Post a Job

Refine Search
Current Search
critical infrastructure engineer
Refine by Categories
Engineering  (65) Information Technology  (18) Executive & Management  (13) Construction & Trades  (5) Admin-Clerical  (3) Marketing  (3)
Apprenticeship  (3) Customer Service  (2) Finance  (2) Other  (2) Accounting  (1) Consulting & Corporate Strategy  (1) Education  (1) Legal  (1) Telecommunications  (1) Creative  (1) Property  (1)
More
Refine by Job Type
Permanent  (69) Full Time  (27) Contract  (7) Temporary  (1)
Refine by Salary Range
£45,000 - £60,000  (1) £75,000 - £100,000  (1) £100,000 - £150,000  (2) £150,000 - £200,000  (1)
Refine by Onsite/Remote
Onsite  (104)
Refine by County
Greater London  (22) Greater Manchester  (7) Glasgow City  (6) Hampshire  (5) Belfast  (4) Oxfordshire  (4)
Somerset  (3) West Midlands  (3) West Yorkshire  (3) Bristol City  (2) Derby  (2) England  (2) Kent  (2) Merseyside  (2) North Northamptonshire  (2) Peterborough  (2) Staffordshire  (2) Surrey  (2) West Northamptonshire  (2) West Sussex  (2)
More
Advance TRS
31 Mar, 2026
Permanent
Critical Infrastructure Engineer
Advance TRS Almondsbury, Bristol BS32, UK
My client, a leading engineering consultancy is looking to strengthen its Building Design team with the appointment of several Critical Infrastructure Electrical Engineers across multiple levels. This is an interesting opportunity to work on complex, high-value projects across sectors including energy, defence, aviation, healthcare and transportation, contributing to the design and delivery of resilient, future-focused infrastructure. The role You'll play a key role in the design and delivery of electrical systems within critical environments, including: LV & MV power systems, earthing and electrical building services Integration of renewable technologies such as PV and BESS, including grid connections Producing detailed electrical calculations using industry-standard software (e.g. ETAP, Amtech/ProDesign) Developing technical specifications, reports and design documentation Supporting BIM delivery using Revit Undertaking site surveys, inspections and...
Advance TRS
31 Mar, 2026
Permanent
Critical Infrastructure Engineer
Advance TRS United Kingdom
My client, a leading engineering consultancy is looking to strengthen its Building Design team with the appointment of several Critical Infrastructure Electrical Engineers across multiple levels. This is an interesting opportunity to work on complex, high-value projects across sectors including energy, defence, aviation, healthcare and transportation, contributing to the design and delivery of resilient, future-focused infrastructure. The role You'll play a key role in the design and delivery of electrical systems within critical environments, including: LV & MV power systems, earthing and electrical building services Integration of renewable technologies such as PV and BESS, including grid connections Producing detailed electrical calculations using industry-standard software (e.g. ETAP, Amtech/ProDesign) Developing technical specifications, reports and design documentation Supporting BIM delivery using Revit Undertaking site surveys, inspections and overseeing...
Advance TRS
31 Mar, 2026
Permanent
Critical Infrastructure Engineer
Advance TRS Epsom, UK
My client, a leading engineering consultancy is looking to strengthen its Building Design team with the appointment of several Critical Infrastructure Electrical Engineers across multiple levels. This is an interesting opportunity to work on complex, high-value projects across sectors including energy, defence, aviation, healthcare and transportation, contributing to the design and delivery of resilient, future-focused infrastructure. The role You'll play a key role in the design and delivery of electrical systems within critical environments, including: LV & MV power systems, earthing and electrical building services Integration of renewable technologies such as PV and BESS, including grid connections Producing detailed electrical calculations using industry-standard software (e.g. ETAP, Amtech/ProDesign) Developing technical specifications, reports and design documentation Supporting BIM delivery using Revit Undertaking site surveys, inspections and overseeing...
Expleo UK LTD
15 Apr, 2026
Permanent
Senior Infrastructure Administrator
Expleo UK LTD Penwortham, Preston, UK
Overview Are you ready to shape the future of secure network and server infrastructure across a global organisation? At Expleo, we're expanding our UK Infrastructure Team and looking for a skilled Senior Infrastructure Engineer who thrives in a hands-on technical environment. If you're passionate about designing resilient networks, solving complex challenges, and playing a critical role in large-scale technology operations, this is the opportunity for you. What's in It for You? High-impact work supporting secure, enterprise-levelservers &networks across UK and global teams A role where your expertise directly influences network & server performance, resilience, and security Opportunities to collaborate with talented engineers across Expleo's global 3-tier network structure Real ownership of architecture, troubleshooting and continuous improvement initiatives A culture built on collaboration, innovation and professional growth Responsibilities Design,...
Calibre Search
15 Apr, 2026
Permanent
Regulated Water Lead Engineer
Calibre Search Leeds, UK
Regulated Water Lead Engineer This is a rare and exciting opportunity to join one of the UK's leading Consultancies operating at the forefront of the regulated water sector. With an established reputation for technical excellence, innovation and influence across major water programmes, the organisation is seeking an experienced Regulated Water Lead Engineer to take a pivotal role in shaping the future of resilient, sustainable water infrastructure. The role offers a unique platform for a senior water professional to lead some of the most complex and high-profile regulated water projects in the UK. Working across the full project lifecycle, the successful candidate will drive delivery from early feasibility and strategic optioneering through to detailed design, implementation support and project completion. This position combines hands-on technical leadership with strategic influence, offering real scope to shape solutions, guide teams and make a lasting impact on the water...
Telent Technology Services Limited
15 Apr, 2026
Permanent
Principal Engineer - Fortinet
Telent Technology Services Limited Farnborough, UK
Principal Engineer - Fortinet When you join our Engineering Team at Telent, you'll be empowered to innovate and drive common solutions, working closely with technical experts who are proud of the impact their work makes. Come join a high-performing team doing complex and critical work. Help build and keep the nation's critical infrastructure connected and protected 24/7. Reporting into the Head of Focal Engineering, the Fortinet Principal Engineer will be responsible for leading the design and delivery of secure, high-performance Fortinet SD-WAN solutions for our enterprise and public sector customers. This is a hybrid working role, with a requirement to be in our Farnborough office around 2 days per month. Other travel may be required on an ad-hoc basis. What you'll do: Lead the end-to-end design of secure SD-WAN solutions using Fortinet Secure SD-WAN. Define scalable, resilient architectures tailored for enterprise and public sector clients. Ensure alignment with...
Green Folk
15 Apr, 2026
Permanent
Plant Engineer
Green Folk Exeter, UK
Plant Engineer (Capital Equipment and Facilities) Job ID: 41446 Monday to Friday 8am 4pm Salary £50,000 per annum Strong benefits listen below (OTE £52,500) Exeter A Site Engineer is needed to lead dedicated project teams providing plant engineering support in the execution of capital projects, equipment improvement, research and support projects to meet the existing and future needs of the company. Essential candidate background needed Qualified to a HNC or equivalent in Electrical, Mechanical or Controls Engineering with a minimum of 3 year s relevant technical experience within an Engineering environment Experienced with maintaining compliance with current legislation, code of practice and EHS requirements which may include but is not limited to: High voltage switching, installation inspection, fixed installation testing, lifting equipment and extraction Experienced with creating technical solutions and applying them to current...
SW
15 Apr, 2026
Permanent
Operational Technology (OT) Engineer
South West Water Alloa FK10, UK
Powered by Water, Driven by Purpose South West Water keeps the South West flowing with safe, reliable drinking water and wastewater services across some of the UK's most stunning landscapes. We're proud to be part of Pennon Group, a leader in the UK water sector, working towards a greener future. Our goals? As well as lowering our carbon footprint, we're working with partners to plant 300,000 trees, restore peatlands and supporting farmers and landowners to improve water quality and wildlife. Whether you're starting out or seeking a new challenge, our scale and ambition create opportunities for you to shape your own career. Ready to make a splash? Join our team today. Join the Flow of Innovation with South West Water - Operational Technology ( OT) Engineer Role Are you ready to dive into the world of Operational Technology (OT) and play a pivotal role in ensuring the smooth flow of critical water and wastewater services? At South West Water, we're looking for an OT...
RR
15 Apr, 2026
Permanent
FPGA Engineer - Submarines
Rolls Royce Derby, UK
Job Description Job Description FPGA Engineer Full Time Derby or Glasgow You will work within our safety critical FPGA development team across all phases of the design lifecycle from requirements elicitation through to equipment testing. The team uses agile SCRUM methods to develop high integrity FPGA based applications adopting the latest state-of-the-art toolsets. Training will be provided where required to equip you with the skills necessary to develop requirements, architectures, designs, HDL code, associated tests and supporting infrastructure for applications essential for the protection and monitoring of a nuclear propulsion plant. Why Rolls-Royce? Rolls-Royce is one of the most enduring and iconic brands in the world and has been at the forefront of innovation for over a century. We design, build and service systems that provide critical power to customers where safety and reliability are paramount. We are proud to be a force for progress, powering, protecting...
TA
14 Apr, 2026
Permanent
Research Engineer - Agentic Critical-Systems Cyber-Security
The Alan Turing Institute 39 Holloway Rd, London N7 8JP, UK
The Role This Research Engineer role sits within The Alan Turing Institute s Defence and National Security programme and focuses on designing, building and evaluating LLM-driven agentic systems to strengthen the cyber resilience of critical national infrastructure, particularly legacy operational technology and industrial control systems that cannot easily be patched or upgraded. The postholder will develop autonomous hardening and monitoring capabilities, create realistic digital twin and simulation environments, run robust large-scale evaluations, and produce high-quality research software, technical outputs, and publications, while working closely with multidisciplinary experts across AI, cyber security and critical systems. It s a highly applied research role suited to someone excited by combining machine learning, software engineering and cyber security to solve complex real-world resilience challenges with national importance. Your Profile We re looking for a...
Government Digital & Data
14 Apr, 2026
Permanent
Associate IT Infrastructure Engineer (Royal Navy Operational Advantage Centre) - Ministry of Defence - EO
Government Digital & Data Fareham, UK
Location Fareham, Southeast England, P014 IAS About the job Job summary This vacancy offers a unique opportunity to support the front-line Royal Navy (RN). The Operational Advantage Centre's (OAC) Technical Section is tasked with maintaining and developing state of the art IT systems that are critical enablers to the advanced analytical approaches and technologies we use to provide information underpinning the RN's doctrine, tactics, and procedures. Without the Technical Section we cannot deliver operational advantage to the front line. The Associate IT Infrastructure Engineer exists to support the delivery of (and/or contribute to the delivery of) technical support to OAC activities. This includes the specific responsibility for the administration, maintenance, development, and support of the OAC operational analysis secret and official local area networks (OA Secret LAN and iNet). This is a challenging and exciting role that will requires technical knowledge and an ability to...
TA
14 Apr, 2026
Permanent
Research Engineer, Agentic Critical-Systems Cyber-Security
The Alan Turing Institute 39 Holloway Rd, London N7 8JP, UK
The Role This Research Engineer role sits within The Alan Turing Institute s Defence and National Security programme and focuses on designing, building and evaluating LLM-driven agentic systems to strengthen the cyber resilience of critical national infrastructure, particularly legacy operational technology and industrial control systems that cannot easily be patched or upgraded. The postholder will develop autonomous hardening and monitoring capabilities, create realistic digital twin and simulation environments, run robust large-scale evaluations, and produce high-quality research software, technical outputs, and publications, while working closely with multidisciplinary experts across AI, cyber security and critical systems. It s a highly applied research role suited to someone excited by combining machine learning, software engineering and cyber security to solve complex real-world resilience challenges with national importance. Your Profile We re looking for a...
SWORD
14 Apr, 2026
Full Time
Server Engineer
SWORD Glasgow, UK
Sword is a leading provider of business technology solutions within the Energy, Public and Finance Sectors, driving transformational change within our clients.  We use proven technology, specialist teams and domain expertise to build solid technical foundations across platforms, data, and business applications.  We have a passion for using technology to solve business problems, working in partnership with our clients to help in achieving their goals.  About the role: The Server Engineer is responsible for ensuring the stability, security, and efficient operation of the organisation’s server and virtualisation platforms. Leveraging VCP‑DCV‑level expertise across VMware technologies and advanced Microsoft Server capabilities, the role delivers high‑quality infrastructure services through effective administration, monitoring, and incident resolution. The Server Engineer contributes to the implementation of resilient server solutions, aligned with architectural standards and...
Capita
14 Apr, 2026
Full Time
Systems Engineer
Capita Belfast, UK
We’re looking for a Systems Engineer to join our growing team at Hillview House, Belfast. This is an excellent opportunity to work in a dynamic environment alongside a large onshore and offshore team. Job title: Systems Engineer Job Description: As a Systems Engineer, you’ll be responsible for monitoring core IT systems and customer-specific infrastructure, providing first-line support for Windows Server platforms across both on-premises and cloud environments. Our team operates 24/7, including bank holidays, to ensure critical services remain available. You’ll deliver round-the-clock support for our managed IT infrastructure, working on a rotating shift pattern that includes both days and nights. Generous rest periods and a shift allowance are included. Shift Pattern: 4 days on (06:30 – 18:30), followed by 3 days off 4 nights on (18:30 – 06:30), followed by 5 days off If you’re ready to take on a challenging and rewarding role in a collaborative...
Rolls Royce
13 Apr, 2026
Permanent
FPGA Engineer - Submarines
Rolls Royce Derby, UK
Job Description Job Description FPGA Engineer Full Time Derby or Glasgow You will work within our safety critical FPGA development team across all phases of the design lifecycle from requirements elicitation through to equipment testing. The team uses agile SCRUM methods to develop high integrity FPGA based applications adopting the latest state-of-the-art toolsets. Training will be provided where required to equip you with the skills necessary to develop requirements, architectures, designs, HDL code, associated tests and supporting infrastructure for applications essential for the protection and monitoring of a nuclear propulsion plant. Why Rolls-Royce? Rolls-Royce is one of the most enduring and iconic brands in the world and has been at the forefront of innovation for over a century. We design, build and service systems that provide critical power to customers where safety and reliability are paramount. We are proud to be a force for progress, powering, protecting...
HISCOX
12 Apr, 2026
Full Time
Lead ML Engineer
HISCOX London, UK
Job Type: Permanent Build a brilliant future with Hiscox   Role Purpose As a Lead Machine Learning Engineer (MLE) at Hiscox, you will shape and scale our Machine Learning Engineering capability and ensure the successful deployment and operation of ML in production. You will lead the MLE sub-chapter, line manage Machine Learning Engineers, and partner closely with the Head of Data Science, the Data Science sub-chapters and Platform/Group teams to enable scalable, reusable, and well-governed ML solutions. You will be accountable for the MLOps platform, ensuring it is reliable, secure, and continuously evolved and for ensuring our business unit ships ML to production in a scalable way that is reusable across value streams, enabling efficient model maintenance, monitoring, and lifecycle management. Combining deep technical expertise with leadership, you will set standards, uplift capability, and enable squads to deliver robust, production-grade ML systems. Key...
FNZ
12 Apr, 2026
Full Time
Lead Site Reliability Engineer
FNZ Edinburgh, UK
Role Purpose The Site Reliability Engineer will work closely with Application, Infrastructure, and Network Engineering teams to ensure the reliability, scalability, and performance of FNZ platforms. This role focuses on deploying, integrating, and providing ongoing operational support for mission-critical systems, leveraging modern automation and cloud-native practices. Key Responsibilities ·       Maintain high availability and performance of FNZ platforms. ·       Implement monitoring, alerting, and observability solutions to proactively detect and resolve issues. ·       Collaborate with engineering teams to design and implement robust deployment pipelines. ·       Ensure smooth integration of applications with infrastructure and network components. ·       Use Terraform for provisioning and managing infrastructure across environments. ·       Operate and optimize workloads onprem and public cloud. ·       Manage and troubleshoot application delivery networks,...
citi
12 Apr, 2026
Full Time
Lead Java Developer - FX Options Realtime Risk
citi London, UK
Lead Java Developer - FX Options Realtime Risk Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. Description This position is responsible for leading a team working on our FX real-time risk system, driving key deliverables, managing the backlog of work, and contributing technically where needed. As a front-office facing role, you'll be the first...
citi
12 Apr, 2026
Full Time
BigData Applications Support Analyst - Assistant Vice President
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech . What We do / The Team: We're looking for a talented Support Engineer to join our global team supporting a large-scale data platform that processes critical business information across our organization. The Platform:  You'll be supporting a modern Big Data platform built on industry-standard...
citi
12 Apr, 2026
Full Time
Production Management Senior Engineer - Senior Vice President
citi Belfast, UK
Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech . The Senior Engineer in Production Management, will be responsible for the development and overall implementation of software in a complex, critical and large cross-departmental and multi-disciplinary area. The role is part of a multi-year transformation journey that will require a successful candidate...
  • Home
  • About Us
  • Recruitment Blog
  • Terms & Conditions
  • Privacy & Cookies Policy
  • Employer
  • Post a Job
  • Job Board Advertising Packages
  • Diversity, Inclusion & Equality (ED&I) Articles
  • Sign in
  • Contact Us | Recruiters
  • Job Seeker
  • Find Jobs
  • Upload CV
  • Job Seeker Help & Advice
  • Equal Opportunities Monitoring Form
  • Sign in
  • Contact Us | Jobseeker
  • Facebook
  • X / Twitter
  • LinkedIn
© 2026 DIjobs Limited  |  3rd Floor, 86-90 Paul Street, London EC2A 4NE  |  Company Registration: 13316146  |  VAT No: GB 377358650
Diversity Job Board | Inclusion | Equality | ED&I | DEI | EDI | D&I | DEIB | IDEA | BDI | Jobboard | Vacancies | Diversity Jobs | Careers | Jobsite | Diversity and Inclusion Job Boards | Find a New Job | Job Search with DIjobs