At a Glance
- Tasks: Design and implement advanced security controls for Linux and container environments.
- Company: Join a leading tech firm focused on innovative security solutions.
- Benefits: Competitive pay, hybrid work model, and opportunities for professional growth.
- Other info: Collaborative environment with a focus on security-by-design.
- Why this job: Make a real impact in enhancing security for critical software systems.
- Qualifications: Strong Linux and Docker experience, with a focus on security hardening.
The predicted salary is between 60000 - 80000 £ per year.
We are seeking a Secure Developer to design and implement advanced endpoint and runtime protection controls for critical software environments. This role focuses on Linux hardening, container security, and low-level system telemetry, helping reduce risk across core application and infrastructure layers.
You will work at the intersection of systems engineering, security, and DevSecOps, building robust protections directly into Ubuntu hosts and Docker environments, and integrating security telemetry into early-stage SIEM and detection pipelines. This is a hands-on engineering role requiring deep understanding of Linux internals, container runtimes, and security hardening standards.
Key Responsibilities- Harden Ubuntu Linux hosts at kernel and OS level using:
- sysctl tuning
- namespaces
- AppArmor
- seccomp
- Linux capabilities
- Implement and maintain auditd rules, syscall-level logging, and host/container telemetry for detection, monitoring, and forensic analysis
- Apply and enforce CIS Benchmarks (Level 2) for:
- Ubuntu Linux
- Docker containers and runtime environments
- Hardened base image standards and secure configuration baselines
- Secure Docker runtime environments through:
- least-privilege execution models
- container isolation strategies
- image provenance and signing
- Docker daemon hardening
- Develop EDR-style capabilities using:
- kernel-level telemetry
- runtime behaviour monitoring
- host-based detection logic
- Integrate host and container logs into prototype SIEM pipelines, enabling correlation and early threat detection
- Automate security controls, hardening processes, and compliance checks using:
- scripting (Python / Bash)
- infrastructure-as-code tools (Terraform / Ansible preferred)
- Strong experience with Linux systems engineering (Ubuntu preferred)
- Deep understanding of Linux kernel security controls and namespaces
- Hands-on experience with Docker container security and runtime hardening
- Experience implementing auditd, syscall monitoring, or host-based telemetry systems
- Familiarity with CIS Benchmarks and secure configuration management
- Strong scripting ability (Python, Bash, or similar)
- Experience with infrastructure automation tools (Ansible, Terraform, or similar)
- Understanding of endpoint security, runtime security, or EDR concepts
- Experience building or integrating SIEM solutions or security pipelines
- Knowledge of eBPF-based monitoring or kernel instrumentation
- Exposure to Kubernetes security hardening (optional but beneficial)
- Experience in secure software development or DevSecOps environments
- Familiarity with cloud security controls (AWS / Azure / GCP)
- Experience working in defence, government, or highly regulated environments
Applicants must hold active UK SC Clearance (or higher) due to the sensitive nature of the environment.
What's on Offer- Opportunity to build real-world endpoint security and runtime protection systems
- Work on low-level Linux security engineering and container hardening
- High-impact role improving resilience of core enterprise software
- Exposure to advanced security engineering and prototype SIEM development
- Collaborative engineering environment focused on security-by-design
Secure Developer in Romsey employer: Coltech
As a Secure Developer at our UK-based company, you will thrive in a collaborative engineering environment that prioritises security-by-design, offering you the chance to work on cutting-edge endpoint security and runtime protection systems. We provide competitive remuneration, opportunities for professional growth, and the chance to make a significant impact on the resilience of core enterprise software, all while being part of a team that values innovation and excellence in security engineering.
StudySmarter Expert Advice🤫
We think this is how you could land Secure Developer in Romsey
✨Tip Number 1
Network, network, network! Get out there and connect with folks in the industry. Attend meetups, webinars, or even local tech events. You never know who might have a lead on that Secure Developer role you’re after!
✨Tip Number 2
Show off your skills! Create a GitHub repository showcasing your projects related to Linux hardening or container security. This gives potential employers a taste of what you can do and sets you apart from the crowd.
✨Tip Number 3
Don’t just apply blindly! Tailor your approach for each application. Research the company and mention specific projects or values that resonate with you. It shows you’re genuinely interested and not just sending out mass applications.
✨Tip Number 4
Apply through our website! We’ve got a streamlined process that makes it easy for you to showcase your skills and experience. Plus, it helps us get to know you better right from the start!
We think you need these skills to ace Secure Developer in Romsey
Some tips for your application 🫡
Tailor Your CV:Make sure your CV highlights your experience with Linux systems and container security. We want to see how your skills align with the role, so don’t be shy about showcasing relevant projects or achievements!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you’re passionate about secure development and how your background makes you a perfect fit for our team. We love hearing your story!
Show Off Your Technical Skills:Don’t forget to mention your scripting abilities and any experience with tools like Terraform or Ansible. We’re looking for hands-on engineers, so let us know how you’ve applied these skills in real-world scenarios.
Apply Through Our Website:We encourage you to apply directly 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!
How to prepare for a job interview at Coltech
✨Know Your Linux Inside Out
Make sure you brush up on your Linux knowledge, especially Ubuntu. Be ready to discuss kernel security controls, namespaces, and how you would harden a system. They’ll want to see that you can talk the talk and walk the walk when it comes to Linux internals.
✨Showcase Your Container Security Skills
Prepare to dive deep into Docker container security. Be ready to explain your experience with runtime hardening, least-privilege execution models, and image provenance. Having real-world examples of how you've implemented these strategies will definitely set you apart.
✨Demonstrate Your Scripting Savvy
Since scripting is key for automating security controls, make sure you can showcase your skills in Python or Bash. Bring examples of scripts you've written for hardening processes or compliance checks, and be prepared to discuss how they improved security.
✨Understand the Bigger Picture
They’re looking for someone who can integrate security into the entire development process. Brush up on your knowledge of DevSecOps and how security telemetry fits into SIEM solutions. Being able to connect the dots between security and systems engineering will show you’re the right fit for the role.
