Senior Network Security Engineer jobs in Cardiff

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...

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...

You will configure firewalls, optimize network security systems, and ensure compliance with company policies. The ideal candidate has 7+ years of experience, working knowledge of key tools, and a commitment to customer success in a collaborative environment.

Job Description Fire and Security Service Engineer - South Wales - £35,000 - £42,000 Basic Salary Fire and Security Service Engineer Package Overview: - Competitive base salary of up to £42,000 (depending on experience) - Company vehicle fuel card - Overtime and on-call rota payments - Travel pay - Company pension scheme - Ongoing training and development opportunities - Clear progression...

You will apply your knowledge through live labs that reflect workplace environments, giving you the practical experience needed to move into a network-focused role. Step 4 – Job PlacementOnce qualified, our recruitment team works with you directly to prepare applications, set up interviews, and secure your first role in network engineering.

Code Wizards Group is a world leader in backend and multiplayer infrastructure for the gaming industry. From high-scale AAA console and PC games to fast-paced mobile indie titles, we empower studios to bring multiplayer experiences to life. Within the Group lie Multiplayer Wizards, whose sole responsibility is to help game studios to run and operate their game infrastructure seamlessly for the...

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...

Senior Network Engineer Location: Cardiff 2-3 days p/week onsite (hybrid role) Salary: £51-56k + annual cost-of-living increase + standby allowance Contract: Permanent --------------------------------------------------------------- The Role We’re looking for an experienced Senior Technical Analyst to join a growing IT team, managing and developing a wide range of network technologies across...

Role: Senior DevSecOps Engineer Salary: £47,675 - £56,445 Grade: SEO Location: Cardiff (hybrid) The Opportunity Yolk Recruitment are excited to be working with an innovation-driven civil service organisation as they journey through some incredible projects whilst working with one of the first fully cloud-based organizations. This is a senior technical role responsible for improving how...

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.

Hays are supporting a large organisation based in Cardiff recruiting for a permanent Senior Network Engineer. The role is paying c£55,000pa depending on experience and typically 2 days on site per week. In the role, you will join a collaborative technical team managing diverse network technologies across vendors like Cisco, Palo Alto & Zscaler etc. You'll support and implement modern network...

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...

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,...

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...

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...

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.

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,...

You will be expected to take initiative and advise on potential pitfalls that a customer may encounter and suggest alternatives through automation, which may better serve the stability and security of the customer's solution.

You will create and maintain customer loyalty by providing Fanatical Experiences above and beyond customer expectations.

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.