OT Infrastructure Engineer / Consultant

📋 Job Overview

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 Sword Group

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.

🎯 The Role

As the OT Infrastructure Engineer / Consultant, you will play a key role in the design, build and delivery of secure, resilient infrastructure supporting complex OT and industrial environments.

You will work across physical and virtual server infrastructure, VMware, Windows and Linux platforms, supporting environments from initial design and build through application integration, testing, commissioning and production go-live.

Working closely with clients and specialists across OT, cyber security, networking, applications and engineering, you will help deliver reliable infrastructure capable of supporting critical operational systems and industrial applications.

This is an opportunity to combine hands-on infrastructure engineering with technical consultancy across a range of complex customer environments.

✅ Key Responsibilities

• Design, build and configure VMware environments
• Build and configure physical and virtual server infrastructure
• Support Windows and Linux-based infrastructure platforms
• Support the hosting and deployment of OT and industrial applications
• Support application installation, configuration, integration and infrastructure readiness
• Undertake system, application and infrastructure testing and validation prior to deployment
• Support FAT, SAT, commissioning and production go-live activities
• Deliver infrastructure migrations, upgrades and refresh programmes
• Configure Active Directory, Group Policy, DNS, DHCP and supporting infrastructure services
• Implement resilient and highly available infrastructure for critical systems
• Support SAN, NAS and enterprise storage technologies
• Support backup, recovery and disaster recovery solutions
• Undertake infrastructure health checks, troubleshooting and performance analysis
• Support server hardening, patching, vulnerability remediation and lifecycle management
• Produce HLDs, LLDs, build guides, test plans, validation evidence and as-built documentation
• Work alongside OT, cyber security, network, application and engineering specialists
• Provide technical consultancy and guidance to clients

📌 Required Qualifications

• Strong hands-on experience with VMware
• Strong experience with Windows Server build, configuration and administration
• Experience with Red Hat Enterprise Linux (RHEL) or equivalent Linux platforms
• Experience deploying physical and virtual server infrastructure
• Experience supporting application hosting and application infrastructure
• Experience with system testing, validation and acceptance activities
• Strong knowledge of Active Directory, Group Policy, DNS and DHCP
• Experience with high availability, clustering and resilient infrastructure
• Experience with enterprise server hardware such as Dell, HPE or equivalent
• Experience with SAN, NAS and enterprise storage technologies
• Experience with backup, recovery and disaster recovery technologies
• Good understanding of networking, VLANs, firewalls and segmentation
• Experience with server hardening, patching and infrastructure lifecycle management
• Experience producing technical infrastructure, build and test documentation
• Strong technical troubleshooting and problem-solving skills
• Confidence working directly with clients and technical stakeholders

⭐ Desirable Experience

• Experience within OT, industrial, energy, utilities or Critical National Infrastructure environments
• Knowledge of IEC 62443, NCSC CAF or wider OT cyber security principles

🎁 Benefits

At Sword, our core values and culture are based on caring about our people, investing in training and career development, and building inclusive teams where we are all encouraged to contribute to achieve success. We offer comprehensive benefits designed to support your professional development and enhance your overall quality of life. In addition to a Competitive Salary, here's what you can expect as part of our benefits package:

• Personalised Career Development: We create a development plan customised to your goals and aspirations, with a range of learning and development opportunities within a culture that encourages growth.
• Flexible working: Flexible work arrangements to support your work-life balance.
• A Fantastic Benefits Package: This includes generous annual leave allowance, enhanced family friendly benefits, pension scheme, access to private health, well-being, and insurance schemes.

🛂 Visa & Eligibility

At Sword we are dedicated to fostering a diverse and inclusive workplace and are proud to be an equal opportunities employer, ensuring that all applicants receive fair and equal consideration for employment, regardless of whether they meet every requirement. If you don’t tick all the boxes but feel you have some of the relevant skills and experience we’re looking for, please do consider applying and highlight your transferable skills and experience. We embrace diversity in all its forms, valuing individuals regardless of age, disability, gender identity or reassignment, marital or civil partner status, pregnancy or maternity status, race, colour, nationality, ethnic or national origin, religion or belief, sex, or sexual orientation. Your perspective and potential are important to us.