Senior cyber solution architect - telco

At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’s most innovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as they provide unique R&D and engineering services across all industries. Join us for a career full of opportunities. Where you can make a difference. Where no two days are the same.

Your Role

You will be joining one of the world's most recognised names in cybersecurity, with over 6,000 cyber security consultants across the Capgemini Group and more than 30 years of proven expertise spanning IT, Embedded, Industrial, and Telecom environments. As part of our growing Cybersecurity practice, you will work at the forefront of Telecom security, contributing to complex, large-scale programmes that shape the future of connected infrastructure — from 5G core networks and Mission Critical Communications to Non-Terrestrial Networks and Industrial IoT.

In this role you will play a key role in:

• Designing end-to-end security architectures for Cloud and Telecom environments, covering domains including SIM/eSIM, RAN, Transport, EPC and 5G Core, IMS, MCx, OSS, and BSS, ensuring robust protection across the full network stack
• Developing and implementing security frameworks aligned with international standards such as 3GPP, GSMA, ETSI, NIST and ISO 27001, applying best practices including Zero Trust, Defense in Depth, and Adaptive Security architectures
• Conducting risk assessments and threat modelling across complex Telecom environments, providing expert technical guidance to mitigate cyber security risks, vulnerabilities and incidents
• Assessing, recommending and validating security technologies — including Firewalls, IDS/IPS, PKI, HSM, PAM, EDR, SIEM and SOAR solutions — against defined security requirements
• Creating and maintaining high-quality security architecture documentation including HLDs, LLDs, architecture diagrams, guidelines and training materials, while leading collaboration with solution architects and integration teams to ensure secure deployments
• Engaging directly with customers and senior executives during workshops and presentations, acting as a trusted technical authority on Telecom cybersecurity matters

Your Profile

A strong background in cybersecurity with a minimum of 12 years of experience, including at least 5 years focused on Telecom environments covering 4G/5G security, RAN infrastructures, transport networks, and cloud/virtualisation platforms. Deep technical knowledge of security standards and compliance frameworks including GSMA, ENISA, TS33.x, ETSI and NIST, alongside hands-on experience with security solutions such as PKI, HSM, PAM, SIEM, EDR and secure architecture patterns. Relevant professional certifications such as TOGAF, ISSAP, CISSP or CCSP (or equivalent), combined with a Master's degree in Computer Science, Information Security, or Telecommunications. Excellent communication and presentation skills in English, with the ability to engage confidently with both technical teams and executive-level stakeholders; proficiency in French is a strong advantage, along with flexibility for international travel to customer locations.

What you'll love about working here

• Dedicated innovation labs We help the world's largest innovators engineer the products and services of tomorrow by leveraging our experts and labs, dedicated to topics such as 5G, 6G, AI, Autonomous Vehicles and Quantum.
• Worldwide Leader of Engineering Services Capgemini Engineering combines its broad industry knowledge and cutting-edge technologies in digital and software to support the convergence of the physical and digital worlds. We help our clients unleash their R&D potential to develop the smart products and services of tomorrow.
• Career acceleration programs From associate to leaders and beyond, get support in your career at every stage with award-winning programs such as our leadership development program, Connected Manager, to accelerate your growth and develop your expertise.
• Communities Our Framework drives career development and elevates Capgemini's capabilities across various domains. Roles like architects and software engineers form the pillars of our Engineering Career Framework, outlining the foundational elements and anticipated growth.

Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.