Senior Network Design Engineer (Rail Communications) York (On-Site) Inside IR35 Contract Major UK Rail Infrastructure Programmes We are seeking a Senior Network Design Engineer to support the delivery of secure telecoms, operational technology and SCADA networks across major rail projects. You will help turn concepts and high-level designs into practical, deliverable solutions. This is a hands-on technical role, not a team leadership position. Key Responsibilities Design and review network architectures, IP addressing, subnetting, and configurations Deliver solutions for CCTV, Voice, SISS, SCADA and backbone communications networks . Develop secure operational data networks and cyber security solutions. Produce technical documentation and test specifications. Support integration, testing and onsite implementation activities. Gather client requirements and contribute to technical proposals. Ensure designs meet rail industry safety, security and quality...

We are looking for a Senior Network Design Engineer / Team Leader to provide technical leadership and deliver network architecture and telecommunications solutions across complex railway and safety-critical projects. The role will focus on the design and delivery of data networks supporting station systems, SCADA, signalling and backbone communications, working closely with customers, project teams, systems engineers and delivery partners. Key Responsibilities Lead the technical delivery of network architectures and designs across railway projects. Design and review LAN/WAN, industrial Ethernet, SCADA and station system networks, including CCTV, voice and passenger information systems. Produce network architecture documents, diagrams, IP addressing/subnetting plans, cable schedules, diversity plans and configurations. Develop secure network solutions, including firewalls, DMZs, IPsec, authentication and network security architectures. Gather customer requirements...

Location: London, Manchester, Cardiff, Southampton At Engine by Starling, we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology. Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a year ago we split out as a separate business. Starling has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. The Engine technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. Our technologists are at the very heart of Engine and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that...

Job Title: Senior Cloud Network Engineer Type: Full Time / 37.50 hours per week / Hybrid – HO is based in Northampton *You need to live within a reasonable commuting distance to the HO in Northampton – weekly attendance is expected Salary DOE from £55k per annum The closing date for this will be 9th September or until the right candidate is hired Purpose of the Role Design, implement, and support secure, scalable, and resilient cloud network solutions across Microsoft Azure and multi-cloud environments. Ensure optimal network performance, reliability, security, and governance through automation and best practice. Collaborate with cloud, infrastructure, and security teams to deliver and maintain high-performing cloud networking services. Drive continuous improvement through Infrastructure as Code (IaC), automation, and modern cloud networking technologies. What We Can Offer You: Flexible working and holiday entitlement Discounted childcare Retail,...

Location: Reading, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Location: Ebbw Vale, Reading, Crawley, Bristol, Templecombe, and Cheadle (any Thales office) Step into a role where your cyber expertise shapes national‑level resilience and the future of secure critical systems! What the role has to offer Enterprise-wide technical influence – shaping consequence informed, secure‑by‑design and AI‑enabled security technologies, and steering the evolution of Thales’ future cyber design capabilities Own the UK Digital Trust technical strategy, ensuring consequence informed, SbD...

Location: Remote UK, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Location: Ebbw Vale, Reading, Crawley, Bristol, Templecombe, and Cheadle (any Thales office) Step into a role where your cyber expertise shapes national‑level resilience and the future of secure critical systems! What the role has to offer Enterprise-wide technical influence – … Own the Exercise and Training technical strategy, defining the product and services SCT offer to UK customers. Lead architecture design of OT Range capabilities, including identity, segmentation, continuous verification, and...

Location: Crawley, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Under Water Systems (UWS) Our purpose is to be the leading provider of underwater sensors and decision superiority, helping navies across the world keep our friends, families and all of us safe. We cover four sectors: Mine Counter Measures, Anti-Submarine warfare, Services and Future Capabilities. Software Engineer – Maritime Mission Systems Thales Maritime Mission Systems provide a unique opportunity for you to create software that delivers a state of the art Sonar capability for UK and International Navies. Our...

At CV-Library, we have a simple vision: to help the world to work and we are looking for exceptional and talented people to help us realise this vision in both UK and overseas markets. We are in a period of accelerated growth, following a year of key strategic acquisitions and significant investment across all parts of the business from Tech and Data to People and HR, there's never been a more exciting time to join us or a better place to grow your career! The Role We are looking for a Senior Go Engineer to join our team and help build high-quality, scalable backend services and APIs. This role is perfect for someone with hands-on experience in Go who is ready to take ownership of features end to end, contribute to technical decisions and work on impactful projects. If you're passionate about writing clean, performant code and working with modern cloud-native technologies like AWS, Docker and Kubernetes within a strong engineering team, we'd love to hear from you! What...

Lead modernisation projects on web applications for science research platform Duxford, Cambridgeshire; c£60,000 DoE + Benefits Take a leading role as a Senior Developer to realise innovative web products as part of the company s new digital transformation. The company is at the forefront of science research in the UK, and put high priority in having clear public communications and news of their successes to elicit further future support. Leading their new web application projects, you will take a critical hands-on approach to shape this. The focus for projects is on the user experience and utilising modern web technologies to optimise its overall visibility and stakeholder engagement. The role will be both hands-on combined with technical leadership, contributing to design, build, test, optimisation and operation. Requirements: Experience as a senior or lead level full stack developer, with demonstrable projects using modern web technologies including a strong focus...

Location: London, EC1M 6PB Contract: 6 Month Contract Hours: Full-time, 37 hours per week Hybrid: 1 day per week onsite in London Rate: TBC Join a dynamic energy provider dedicated to delivering sustainable solutions across the UK. We are looking for an enthusiastic and resourceful Senior Backend Developer who is passionate about building exceptional products and developing robust, scalable solutions. This is an initial 6-month contract, with potential for extension. The role is full-time, 37 hours per week, with one day per week onsite in London. Accountabilities Play a pivotal role within the backend engineering team, helping to build cloud-based applications. Develop backend solutions using Python and AWS Cloud services. Adopt a serverless-first approach to application design. Collaborate within an Agile team alongside other backend engineers and product designers. Strategise, develop, test and deploy new features and experiments. Participate in...

Contract C++ Developer Location: London, 2 days onsite in Kings Cross Contract: Immediate start - 12 week contract Who We Are AND Digital are on a mission to close the world's tech skills gap. We help organisations navigate the future of technology by combining human expertise, emerging tech and AI to deliver better outcomes, faster. Since 2014, we've worked alongside clients to solve complex challenges, build high-performing teams and create lasting capability. Today, we're over 1,300 people across the UK, Europe and the USA, with ambitious plans for continued growth. The Role We're looking for four Embedded C++ Developers to join an in-house backend engineering team working on a highly regulated, safety-critical medical technology product. You'll own a self-contained area of the application, taking work from initial design through to merged, tested and documented code . Depending on your experience and the team's needs, this could include areas such as alarms,...

Contract Senior C++ Developer Location: London, 2 to 3 days onsite in Kings Cross Contract: Immediate start - 12 week contract Who We Are AND Digital are on a mission to close the world's tech skills gap. We help organisations navigate the future of technology by combining human expertise, emerging tech and AI to deliver better outcomes, faster. Since 2014, we've worked alongside clients to solve complex challenges, build high-performing teams and create lasting capability. Today, we're over 1,300 people across the UK, Europe and the USA, with ambitious plans for continued growth. The Role We're looking for four Embedded C++ Developers to join an in-house backend engineering team working on a highly regulated, safety-critical medical technology product. You'll own a self-contained area of the application, taking work from initial design through to merged, tested and documented code. Depending on your experience and the team's needs, this could include areas such as alarms,...

Senior Python Engineer Client: National Grid Contract: 6-month rolling contract multi-year programme Location: Home-based Travel: Bristol approximately 4 times per year Rate: 700- 750 per day via Umbrella The opportunity We're looking for an exceptional Senior Python Engineer to join a major, multi-year technology programme at National Grid, helping to build a new customer CRM platform from the ground up. The platform is currently in the discovery phase, making this a genuine greenfield opportunity to influence architecture, engineering standards and ways of working from the outset. The platform will support a range of customer interactions, including login issues, enquiries, complaints and wider customer service activity. You'll work across multiple front-end and back-end engineering teams in an Agile environment. This is a hands-on engineering role - we're looking for someone who is an excellent Python engineer but can also influence, guide and share best...

Technical Lead Power Platform, Automation & AI Location: Ealing / Hybrid (some office attendance required) Salary: £58,714-£65,000 (dependent on experience) Contract type: Permanent Full Time (35 hours per week, Monday to Friday) DBS Level Basic Are you an experienced technical leader with deep expertise in Microsoft Power Platform, enterprise integration and automation? Do you enjoy balancing innovation with strong governance, security and operational resilience? If you're passionate about using technology and AI to transform services and improve efficiency at scale, this could be the opportunity for you. We're looking for a Technical Lead Power Platform, Automation & AI to join our Business Applications function within Information Technology. This is a pivotal technical leadership role responsible for the integrity, security, resilience and ongoing evolution of A2Dominion's Power Platform, automation, integration and AI services. You'll help...

Senior Software Engineer - London or Edinburgh One of the leading players in the UK and European Energy & Renewables tech sector is hiring for an AI-first Software Engineer to join its core product development team. As a part of this high performing and collaborative group of c.10-15, you will own one of the most powerful, real-time data engines in the entire sector, recognised as the gold standard for decision making and trading As the team are embracing AI-powered development, they are looking for prior experience in Cursor, Github CoPilot, and other coding tools. If high-throughput, high-transaction, low-latency, real-time technologies excite you - this is about as good as it gets! The Benefits: You'll join a multi-award-winning, people-first organisation with a benefits package built around your wellbeing, including: Salary up to £80,000 Hybrid working with 2 days a week in their London or Edinburgh office 26 days' annual leave plus bank holidays...

Senior Software Engineer - London or Edinburgh One of the leading players in the UK and European Energy & Renewables tech sector is hiring for an AI-first Software Engineer to join its core product development team. As a part of this high performing and collaborative group of c.10-15, you will own one of the most powerful, real-time data engines in the entire sector, recognised as the gold standard for decision making and trading As the team are embracing AI-powered development, they are looking for prior experience in Cursor, Github CoPilot, and other coding tools. If high-throughput, high-transaction, low-latency, real-time technologies excite you - this is about as good as it gets! The Benefits: You'll join a multi-award-winning, people-first organisation with a benefits package built around your wellbeing, including: Salary up to £80,000 Hybrid working with 2 days a week in their London or Edinburgh office 26 days' annual leave plus bank holidays...

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: As the OT Network Engineer / Consultant, you will play a key role in the design, implementation and delivery of secure and resilient network infrastructure across complex OT and industrial environments. You will work across industrial networking, network security and segmentation, supporting solutions from initial design and configuration through integration, testing, commissioning and deployment. This will include working with firewalls, switches, routers, industrial DMZs and secure connectivity across IT, OT...

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: As the OT Network Engineer / Consultant, you will play a key role in the design, implementation and delivery of secure and resilient network infrastructure across complex OT and industrial environments. You will work across industrial networking, network security and segmentation, supporting solutions from initial design and configuration through integration, testing, commissioning and deployment. This will include working with firewalls, switches, routers, industrial DMZs and secure connectivity across IT, OT and...

Senior Network Engineer (Fortinet) Up to 470 per day (Umbrella) with Potential Flexibility for the Right Candidate Initial 6-Month Contract (Extension Highly Likely) Liverpool (Hybrid) Our client is seeking an experienced Senior Network Engineer to join their infrastructure team on an initial 6-month contract, with great potential for extensions. This is a hands-on engineering role focused on supporting, maintaining, troubleshooting and enhancing a complex enterprise network environment. The successful candidate will play a key role in ensuring the stability, security and performance of critical network infrastructure while supporting both operational and project-based activities. Location & Working Arrangements Liverpool based Hybrid working model with a minimum of 3 days per week onsite Monday to Friday Free onsite parking Occasional out-of-hours work to support planned changes, maintenance activities and major incidents Key...

At Sword, we help power, secure and transform the organisations that keep the UK running. Supporting customers across Critical National Infrastructure, energy, public sector and enterprise markets, we combine deep industry expertise with leading technology services spanning managed services, cyber security, cloud, data, AI and digital transformation. Join Sword and you'll be part of a team solving complex challenges, delivering real-world impact and working alongside talented colleagues who care deeply about quality, collaboration and customer success. About the Role: As a Technical Lead within our Cloud & Cyber Services practice, you will play a key role in shaping the quality, direction and development of our technical services across strategic customer engagements, projects and managed services. This is a senior leadership role combining people development, technical assurance and customer engagement. You will lead and develop our Technical Service Architects,...