At a Glance
- Tasks: Monitor and protect critical networks in a dynamic 24/7 security operations environment.
- Company: Join The ONE Group Ltd, a leader in network security with a collaborative culture.
- Benefits: Enjoy competitive pay, pension contributions, flexi-leave, and subsidised meals.
- Other info: Great career growth opportunities in a high-performance team.
- Why this job: Make a real impact by safeguarding vital infrastructure and enhancing network resilience.
- Qualifications: Strong networking knowledge and hands-on experience with firewalls and security tools.
The predicted salary is between 36000 - 60000 € per year.
We’re looking for a Network Security Engineer to join a high-performance security operations environment, protecting critical infrastructure and ensuring the resilience of complex enterprise networks. You’ll work within a 24/7 Incident Response function, combining hands‑on engineering with real‑time threat detection, investigation, and remediation.
Key Responsibilities:
- Monitor, investigate and triage security events within a 24/7 SOC environment
- Configure, maintain and troubleshoot enterprise firewalls (Cisco, Palo Alto, Checkpoint)
- Manage secure proxy platforms such as Bluecoat or F5, including content filtering and SSL inspection
- Lead deep-dive analysis using packet capture to identify malicious traffic and attacker behaviours
- Implement secure changes across network architecture, ensuring compliance and best practices
- Support continuous improvement through the optimisation of network security tools, including “purple team” feedback and hardening recommendations
- Contribute to the standardisation of network security tooling and documentation
- Collaborate with infrastructure, security and architecture teams to deliver robust, resilient network solutions
About You:
- Strong understanding of core networking: TCP/IP, DNS, routing, switching, VLANs, load balancing
- Hands‑on experience with next‑generation firewall technologies and advanced features (IPS/IDS, SSL decryption, DPI)
- In‑depth knowledge of IPSec, SSL/TLS, VPNs and authentication mechanisms
- Experience with network monitoring tools (PRTG, Nagios or similar)
- Ability to analyse complex traffic flows and identify threat patterns such as exploitation, C2, lateral movement, or exfiltration
- Understanding of secure network architectures (DMZs, segmentation, internal zones)
- Exposure to SIEM platforms (Splunk, LogRhythm, Darktrace) is beneficial
- Experience interpreting OSI model behaviours and protocol‑level diagnostics is advantageous
SC eligible with British citizenship.
Benefits:
- Company bonus scheme
- Pension contributions up to 14%
- Paid overtime opportunities
- Flexi‑leave (up to 15 additional days)
- Enhanced parental leave
- Subsidised meals, free parking and excellent on‑site facilities
Seniority level: Mid‑Senior level
Employment type: Part‑time
Job function: Information Technology, Production, and Analyst
Industries: Aviation and Aerospace, Component Manufacturing, Defense and Space Manufacturing
Network Security Engineer in Stevenage employer: The ONE Group Ltd
The ONE Group Ltd is an exceptional employer, offering a dynamic work environment in Stevenage where innovation meets security. With a strong focus on employee growth, we provide extensive training opportunities, a generous pension scheme, and flexible leave options, ensuring our team members thrive both personally and professionally. Our commitment to a collaborative culture, combined with excellent on-site facilities and a bonus scheme, makes us a standout choice for those seeking a rewarding career in network security.
StudySmarter Expert Advice🤫
We think this is how you could land Network Security Engineer in Stevenage
✨Tip Number 1
Network Security roles are competitive, so make sure you’re among the first to apply! Keep an eye on our website for new openings and hit that 'apply' button as soon as you see a role that fits your skills.
✨Tip Number 2
Networking is key! Reach out to current employees or alumni in the field. A friendly chat can give you insider info about the company culture and might even lead to a referral, which can double your chances of landing an interview.
✨Tip Number 3
Prepare for technical interviews by brushing up on your hands-on skills. Practice configuring firewalls or analysing traffic flows. The more confident you are with practical scenarios, the better you'll perform when it counts!
✨Tip Number 4
Don’t forget to showcase your problem-solving skills during interviews. Be ready to discuss past experiences where you tackled security incidents or optimised network tools. We love hearing about how you’ve made a difference!
We think you need these skills to ace Network Security Engineer in Stevenage
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the Network Security Engineer role. Highlight your experience with firewalls, network monitoring tools, and any relevant certifications. We want to see how your skills match what we're looking for!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're passionate about network security and how your background makes you a great fit for our team. We love seeing enthusiasm and a personal touch.
Showcase Relevant Experience:When filling out your application, be sure to showcase any hands-on experience you've had with incident response or threat detection. We’re keen on candidates who can demonstrate their ability to tackle real-world challenges.
Apply Through Our Website:Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it’s super easy to do!
How to prepare for a job interview at The ONE Group Ltd
✨Know Your Tech Inside Out
Make sure you brush up on your knowledge of core networking concepts like TCP/IP, DNS, and VLANs. Be ready to discuss your hands-on experience with firewalls and network monitoring tools, as these will likely come up during the interview.
✨Showcase Your Problem-Solving Skills
Prepare to share specific examples of how you've tackled security incidents in the past. Think about times when you had to investigate and triage security events or implement secure changes across network architecture.
✨Familiarise Yourself with the Company’s Tools
Research the specific technologies mentioned in the job description, like Cisco, Palo Alto, and SIEM platforms. Being able to speak knowledgeably about these tools will show that you're serious about the role and can hit the ground running.
✨Ask Insightful Questions
Prepare a few thoughtful questions about the company's security operations and team dynamics. This not only shows your interest but also helps you gauge if the company culture aligns with your values and work style.
