Senior Network Security Engineer jobs in Cheltenham

Role & What’s in it for the applicant and why would they apply?: This is a rare opportunity to join a public-sector organisation with genuine technical depth, running and evolving its own data centre and enterprise network estate. Rather than being siloed or boxed into BAU, you’ll work across network design, deployment, support, and continuous improvement, with real influence over direction and...

Senior Software Engineer - SC ClearedLocation: Farnborough (Hybrid/On-site)Salary: Up to £100,000 (dependent on experience)Clearance: Active SC clearance (willing and eligible to go through DV)To Apply: EmailAn opportunity for a senior software engineer to work alongside security researchers on technically challenging problems with real-world impact. The role involves developing complex software...

The Oracle Cloud Infrastructure (OCI) Offensive Security team provides OCI with the capabilities to ensure our systems and services meet the security objectives we communicate to customers. The Offensive Security group performs security assessments, vulnerability research, static and dynamic analysis research, penetration testing, red-teaming, and security tool development. We ensure the security...

Role Title: Storage SAN SME Duration : 8 months Rate: £366 per day on umbrella Location: Sheffield Hybrid -3 Days We are a Global Recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. Storage - Strong knowledge in SAN hardware installation and configuration; Storage - Strong SAN storage and virtualisation knowledge, provisioning and migration...

About Turing: Based in San Francisco, California, Turing is the world's leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who specialize in coding, reasoning, STEM,...

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...

Job Description Senior Platform Engineer (Oracle Cloud Infrastructure - OCI) Duration: 6 Months Location: Manchester & remote (hybrid) Rate: £760 per day IR35 Status: Inside Start: ASAP Role Overview: We're currently recruiting for an experienced Senior Platform Engineer with excellent OCI experience (Oracle Cloud Infrastructure) for our higher education client. This role is to support and...

You will shape how our engineers build, test, release, and monitor software, ensuring frictionless workflows while keeping ownership of business logic, test quality, and development practices firmly with the product engineering teams.

You will be responsible for the entirety of the back end features of the products.

You will be in charge of building scalable backend services and awesome messaging queues.

You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily.

Senior Performance Engineer - UK Ready to Make a Real Impact? Join e-STORAGE! Who We Are Welcome to e-STORAGE, a proud member of the Canadian Solar Inc. (NASDAQ: CSIQ) family! We’re leading the way in designing, building, and integrating advanced battery energy storage systems for utility-scale projects. Our mission? To accelerate the world’s renewable energy transition and create a more...

Senior Cloud Engineer Check below to see if you have what is needed for this opportunity, and if so, make an application asap.£Up to £80,000 GBPCompetitive BonusHybrid WORKINGLocation: Bristol; Cheltenham, Gloucester, South West - United Kingdom Type: PermanentSenior Cloud Engineer (SC)Location: Gloucester (Hybrid & flexible working available)Security Clearance: Must be eligible for SC...

John Crane, a business of Smiths Group, is a global leader in mission-critical flow control solutions for energy and process industries that enable efficient and sustainable operations. Our products include mechanical seals and systems, couplings, filtration systems, and predictive digital monitoring technologies. We have a global network of more than 200 sites in over 50 countries and employ...

You will design, develop, and maintain our platform’s backend infrastructure, focusing on multi-tenant architectures, security, and efficient LLM integration. This role requires a strong understanding of Python web frameworks, cloud services (particularly AWS), and modern AI approaches including working with agentic architecture.

You will work closely with frontend engineers, product managers, and the CTO to design and evolve a highly scalable, asynchronous, cloud-native platform. This is a hands-on senior engineering role with real technical ownership, influence over architecture, and scope to mentor others.

Reports to: Technology Director / Executive Sponsor Location: Remote with occasional travel to London (2 times a month) Contract: Full-time, permanent Base Salary: £70,000 – £80,000 location and experience dependent + 10% company bonus scheme and sales commission scheme Why This Role Exists Serve Legal is entering a new chapter: evolving beyond compliance auditing into AI enabled,...

Senior HV Plant Engineer Location: Remote, UK Wide Salary: up to £75,000 (based on experience) Position: Permanent Turner Lovell are working with a leading UK utility infrastructure contractor to find a Senior HV Plant Engineer who will play a role in delivering and overseeing primary plant designs for National Grid and other transmission and distribution substation projects across the UK...

Senior Fire Engineer | Lead a specialist team and shape critical outcomes This is a rare senior appointment for a Chartered Fire Engineer ready to step into a leadership role with real responsibility and influence. A replacement position within an established and growing specialist division, where your expertise will set standards, guide people and shape how complex fire engineering work is...

Founded in 2017, Obsidian Security was created to close a critical gap: securing the SaaS applications where modern business happens—platforms like Microsoft 365, Salesforce, and hundreds more. Backed by top investors including Greylock, Norwest Venture Partners, and IVP, we've built a complete SaaS security platform to reduce risk, detect and respond to threats, and prevent breaches at the...

You will support in reverse engineering and deep understanding of vulnerabilities, including impact analysis and automation.

You must relish the challenge of findings critical vulnerabilities in complex software binaries through automation and manual practices. Creativity is highly valued; being able to find novel vulnerabilities is essential in this role.

You will be responsible for the entirety of the back end features of the products.

You will be in charge of building scalable backend services and awesome messaging queues.

You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily.