At a Glance
- Tasks: Shape secure architecture for telecoms and enterprise IT systems.
- Company: Join a leading telecoms programme with a focus on security.
- Benefits: Competitive daily rate, hybrid working model, and long-term contract.
- Other info: Work with innovative technologies like AWS, 4G/5G, and SDN/NFV.
- Why this job: Make a real impact in securing cutting-edge mobile networks and cloud environments.
- Qualifications: Experience in enterprise security architecture and strong communication skills required.
The predicted salary is between 60000 - 80000 £ per year.
Salary £? - ? per year
Requirements
- Active SC Clearance required
- Enterprise Security Architecture experience within telecoms, mobile networks or critical national infrastructure
- Strong understanding of 4G/5G core, RAN, IMS/signalling, OSS/BSS, NFV/SDN, telecom APIs and interconnect security
- Strong AWS cloud security architecture experience
- Knowledge of Zero Trust, identity security, encryption, SIEM/SOC integration and network segmentation
- Experience with telecoms security standards and regulations, including GSMA, NCSC, ISO 27001, NIS/NIS2 and GDPR
- Strong stakeholder engagement and senior‑level communication skills
Responsibilities
- Define and maintain enterprise security architecture across telecoms and enterprise IT systems
- Develop target‑state security architectures aligned to business, regulatory and operational requirements
- Apply TOGAF, SABSA and ArchiMate across architecture artefacts and governance
- Design secure AWS, hybrid and cloud‑native architectures
- Conduct threat modelling, risk assessments and security design reviews
- Define security patterns, standards and reference architectures
- Support assurance, governance, audit and secure‑by‑design delivery
- Collaborate with engineering, operations, risk, compliance and vendor teams
Technologies
- AWS
- Architect
- ArchiMate
- Cloud Support
- Mobile Network
- OSS
- Security
- TOGAF
We are hiring for a long‑term Enterprise Security Architect role on a major secure telecoms programme. This is an inside IR35 contract paying £550 to £600 per day, with a hybrid working model requiring two days a week in London or Bristol. We are looking for someone to help shape secure architecture across mobile network, enterprise IT and cloud environments, covering 4G/5G core, RAN, OSS/BSS, AWS, SDN/NFV, Open RAN, edge computing and cloud migration workstreams.
Enterprise Security Architect - London employer: Sivara GmbH
As an Enterprise Security Architect with us, you'll join a forward-thinking team dedicated to shaping the future of secure telecoms architecture. Our London office offers a dynamic work culture that values innovation and collaboration, providing you with ample opportunities for professional growth and development. With competitive compensation and a hybrid working model, we ensure a supportive environment where your expertise in security architecture can thrive while making a meaningful impact on critical national infrastructure.
StudySmarter Expert Advice🤫
We think this is how you could land Enterprise Security Architect - London
✨Get Active on Cybersecurity Forums
Join platforms like Stack Exchange and Reddit’s r/cybersecurity to hang out with industry pros, learn the latest, and share your insights. This will not only boost your visibility but also help you connect with potential clients who might need your freelance services.
✨Show Off Your Skills with Public Projects
Create a few open-source projects or contribute to existing ones that showcase your cybersecurity skills. Use GitHub to display your work, as this is an excellent way to attract clients looking for freelancers with a proven track record.
✨Attend Local Conferences and Meetups
Make sure to hit up cybersecurity meetups, workshops, and conferences in your area. These events are goldmines for networking, and you’ll often find people looking for freelancers after a chat over a coffee – so come prepared with your business cards and a killer elevator pitch!
✨Market Yourself Smartly
Set up a professional website that showcases your portfolio, expertise, and client testimonials. Optimise it for SEO with relevant keywords so potential clients searching for cybersecurity freelancers can easily find you. Don’t forget to link to your site on all your social media and profiles!
We think you need these skills to ace Enterprise Security Architect - London
Some tips for your application 🫡
Show Your Skills Through a Strong Portfolio:Since you're applying for a freelance role in cybersecurity, it's crucial to showcase your technical skills through a detailed portfolio. Include case studies of projects you've worked on, any security tools you've developed or assessed, and specifics on the methodologies you’ve used. This will help Sivara GmbH understand what you're capable of.
Certifications Matter!:Make sure to list any relevant certifications you hold, such as CISSP, CEH, or CompTIA Security+. Freelance clients often value these credentials as they reflect your expertise and commitment to the field. If you’re actively pursuing more certifications, don’t hesitate to mention that too!
Rates, Availability, and Your Work Style:In your application, it’s essential to be clear about your freelance rates and availability. Clients appreciate transparency. Mention how many hours a week you can dedicate and your preferred working hours, as this sets expectations from the start and shows you're organised and professional.
Tailor Your CV to Highlight Cybersecurity Experience:When crafting your CV, make sure to tailor it specifically to cybersecurity. Highlight projects, tasks, and achievements related to security assessments, vulnerabilities you've mitigated, or compliance work you've undertaken. Keywords relevant to the job can grab attention and increase your chances of landing a spot at Sivara GmbH.
How to prepare for a job interview at Sivara GmbH
✨Showcase Your Cybersecurity Skills
As a freelancer in cybersecurity, it’s crucial we demonstrate not just our knowledge but our practical skills too. Be ready to discuss specific tools you’ve used, like Wireshark or Metasploit, and share relevant experiences where you identified vulnerabilities or mitigated risks in past projects.
✨Prepare Your Portfolio
Unlike traditional roles, freelancing relies heavily on your portfolio. Let’s curate a selection of past work that showcases our best projects. If we’ve handled penetration tests, audits, or incident responses, be sure to highlight these in your portfolio, and share any client testimonials if we have them.
✨Stay Updated on Trends and Tools
Cybersecurity is an ever-evolving field, so we should be prepared to chat about recent developments and how they impact our work. Familiarise ourselves with the latest threats, tools, and frameworks, like MITRE ATT&CK, that are pertinent to the projects we’re pitching.
✨Pitching Your Value as a Freelancer
When freelancing, we often need to negotiate our rates and value propositions. Be ready to explain how our skills can help Sivara GmbH protect their assets and manage risks. It can help to outline some potential strategies or improvements we could implement for them based on their current setup.
