Mission Critical Application & Infra Support Specialist

Position: Mission Critical Application & Infra Support Specialist
Location: Ansty

Cadent Gas Ltd

  Job Purpose    

 As a Mission Critical Application and Infrastructure Technical Specialist at Cadent, you'll be responsible for supporting and enhancing the critical technology platforms that underpin our operational environments. Working across our Mission Critical estate, you'll help ensure the availability, reliability, security and performance of the systems that support Cadent's control room operations, operational technology environments and business-critical services.

This is a highly technical role where you'll act as a subject matter expert for Mission Critical applications, infrastructure and connected systems. You'll work closely with operational teams, architects, delivery teams, vendors and security specialists to ensure services remain stable, secure and fit for the future.

From supporting mission-critical SCADA environments and operational technology platforms to driving platform roadmaps and disaster recovery planning, you'll play a key role in safeguarding services that operate 24 hours a day, 365 days a year.

Why you'll love this role

This role offers the opportunity to work on systems that directly support one of the UK's most important critical infrastructure environments.

Critical Infrastructure Impact – Support and maintain the technology that enables safe and reliable gas network operations.

Technical Variety – Work across SCADA systems, operational technology, infrastructure, middleware, integrations and supporting applications.

Platform Ownership – Take responsibility for the health, performance, maintenance and evolution of critical platforms and services.

Security & Resilience Focus – Help ensure systems remain secure, compliant and aligned with Safe Control of Operations (SCO) and cyber security requirements.

Strategic Influence – Contribute to application, infrastructure and platform roadmaps that support future business needs.

High-Profile Environment – Engage with senior stakeholders, operational control room teams, technology vendors and government-facing organisations.

What you'll bring:

You're an experienced technical specialist with strong operational support experience and a passion for maintaining resilient, secure and high-availability systems.

Critical Systems & Infrastructure Experience

Experience supporting mission-critical systems in a 24x7x365 environment  
Strong understanding of application support, infrastructure management and service operations  
Experience managing incidents, problems, changes and continual service improvement activities    

Operational Technology & SCADA Knowledge

Knowledge of operational technology environments and supporting infrastructure  
Experience working with or supporting SCADA systems  
Understanding of critical operational environments and associated technologies    

Technical Expertise

Strong technical knowledge across a number of the following areas:  
Windows Server and Client administration  
Active Directory and Citrix technologies  
System and security monitoring  
Clustering and high-availability solutions  
Disaster recovery and business continuity planning  
Storage and backup technologies  
Configuration management  
DNS and proxy services  
SQL Server and data integration technologies  
Aveva PI Server and PI Vision  
SAP Solace AEM  
ArcGIS and associated applications  
Globalscape EFT and enterprise file transfer platforms  
Schneider Electric ClearSCADA / GeoSCADA technologies   

Development & Data Skills

Knowledge of programming and scripting technologies such as .NET, Java, Visual Basic, XML or C/C++  
Understanding of SQL, relational databases and time-series data  
Experience supporting integration and middleware solutions    

Stakeholder & Leadership Skills

Excellent communication and stakeholder management skills  
Ability to translate technical issues into business-focused language  
Strong analytical and problem-solving capability  
Experience collaborating with suppliers, project teams and business stakeholders    

Qualifications & Experience

Degree in Computing or a related discipline, or equivalent experience  
SCO certification at CP/AE level  
Typically 5-10 years' IT experience, including experience in 2nd or 3rd line support roles within complex enterprise environments    

Apply now and help us deliver safe, reliable and secure technology services that support one of the UK's most important infrastructure networks