At a Glance
- Tasks: Design and implement secure, scalable network architectures for major clients across various industries.
- Company: CACI is a leading tech consultancy empowering organisations with data and technology since 1975.
- Benefits: Competitive salary, career growth, and a culture that values authenticity and success.
- Other info: Join a dynamic team with opportunities in cloud networking and cutting-edge technologies.
- Why this job: Be a trusted advisor and make a real impact in the tech world with innovative solutions.
- Qualifications: Proven experience in large-scale network design and strong understanding of network architecture principles.
The predicted salary is between 63000 - 77000 £ per year.
About CACI
From our headquarters in London, we’re busy empowering organisations to make bold, strategic moves with the power of data and technology. Founded in 1975, our operations take place from multiple offices across the UK, Europe and India with over 1600 full-time employees and an annual turnover of £179m. Our expertise spans industries, from retail and education to public sector and transport – delivering intelligent solutions that drive progress and create measurable impact. Whether it’s business intelligence, customer marketing, cloud infrastructure, cybersecurity, critical national infrastructure or data management, our approach is never one-size-fits-all.
We build for tomorrow’s world, all while fostering a culture that allows employees to be their authentic selves and succeed in their careers.
About Network Services
CACI Network Services is a rapidly expanding specialist IT and Networks consultancy offering a wide variety of opportunities to work within challenging and exciting environments with our major clients in Global Media, Banking, Government, Telecoms & Utilities.
As a Principal Network Architect, you will be a trusted advisor, technical authority, and strategic partner to our clients. You will lead the design of complex, secure, and scalable network architectures, translating business requirements into robust technical solutions. Provide expert consultancy on network strategy, transformation roadmaps, best practices, and emerging technologies. Build strong, long-term relationships that support account growth and customer satisfaction.
Architect network solutions across environments of varying scale—from small to mid-sized infrastructures through to highly complex, large-scale enterprise and multi-site architectures—covering LAN/WAN, Wireless, routing, switching, SDN, and security technologies. Lead creation of high-quality architectural documentation, including HLA, HLD, LLD, standards, and design patterns.
Pre-Sales, Bids & Commercial Support
Partner with the Sales team during pre-sales engagements to define solutions, scope opportunities, and support commercial proposition development. Lead technical responses for Tenders, IITs, and RFPs, including architecture design, technical writing, risk identification, and pricing model support. Work alongside multi-disciplinary delivery teams, providing leadership, technical guidance, and assurance during implementation phases. Support project managers and engineering teams to ensure solutions are delivered in line with architectural intent and to the highest quality.
Data Centre end to end solutions
- Network Security, Firewalls, Zero Trust, SASE/SSE
- Software-defined networking solutions
- Cloud networking (AWS / Azure / GCP / OCI) – highly desirable
Proven experience designing and delivering large-scale network and security solutions across enterprise or service provider environments. Deep understanding of network architecture principles, high availability design, routing protocols, segmentation, security architectures, and cloud networking. Experience working within Agile / Scrum, Waterfall, and hybrid project delivery methodologies. Strong commitment to continuous learning and staying ahead of industry advancements.
Cloud certifications (AWS/Azure/GCP/OCI). Strong understanding of structured delivery and operational frameworks (ITIL, PRINCE2, AgilePM, or similar project/service management certifications). Experience with automation tools (Python, Ansible, Terraform, etc.).
Senior Architect - Network Architect in London employer: CACI Ltd
CACI Ltd is an exceptional employer that prioritises teamwork and collaboration, offering a hybrid work model that balances remote and in-office work to meet business needs. With a strong commitment to diversity and inclusion, CACI fosters a supportive environment where employees can thrive and grow, providing ample opportunities for professional development in the dynamic field of network infrastructure and security. The company values its people, ensuring that all employees feel empowered to contribute to a culture of innovation and excellence.
