Senior Service Designer | SASE | 3 months | £400/450 a day

Computer Futures - London & S.E(Permanent and Contract); United Kingdom; Remote; GBP 80,000 - 100,000; Full time

Job summary

A major telecom company is seeking a Senior Service Designer to shape secure connectivity. This role involves leading service design for SASE and DTSE capabilities, enhancing access control mechanisms, and implementing Zero Trust principles. Strong experience in service design and cyber security is essential. The position offers a competitive daily rate and is fully remote, with a contract length of 3 months.

Qualifications

• Proven senior level experience in Service Design within Cyber Security and telecom environments.
• Deep knowledge of MDCA or similar security solutions.
• Strong understanding of SASE frameworks and Zero Trust architecture.

Responsibilities

• Lead the service design for SASE and DTSE capabilities.
• Develop Zero Trust-based solutions to replace traditional remote access technologies.
• Establish real-time, posture-aware access policies.

Skills

Service Design

Cyber Security

SASE frameworks

Zero Trust architecture

Operational modelling

Stakeholder engagement

Communication skills

Presentation skills

Job description

Employer Computer Futures - London & S.E(Permanent and Contract) Location England, United Kingdom Salary Competitive Salary Closing date 4 Jul 2025

Senior Service Designer | 3 months | £400/450 a day | Outside IR35

My customer is looking for a Senior Service Designer to help shape the future of secure connectivity in a major telecom environment.

You'll play a critical role in designing and evolving services around Secure Access Service Edge (SASE). The Service Designer needs network, SASE and Cyber Security experience.

You'll be leading the enhancement of the existing Microsoft Defender for Cloud Apps (MDCA) service model to support the implementation of Dynamic Trust Service Edge (DTSE), enabling modern, cloud-native access with strong Zero Trust principles.

Key Responsibilities:

• Service Design & Operational Modelling
• Lead the service design for SASE and DTSE capabilities
• Design and implement cloud-based application access control mechanisms to enable secure, scalable access to modern applications.
• Develop Zero Trust-based solutions to replace traditional remote access technologies such as VPN, proxies, and Citrix.
• Establish Real Time, posture-aware access policies that adapt to user context, device health, and security posture for dynamic access control.
• Take ownership of the MDCA service model (including OIT Infra and SSO) and define necessary enhancements.
• Design operational processes, assess business impact, and model org changes.
• Work with stakeholders across infrastructure, cloud security, identity, and application teams.
• Map and document onboarding flows and use cases for both Legacy and modern applications.
• Ensure technical and business alignment across the project.
• Support financial modelling and help build the case for investment in the updated service model.

Required Experience:

• Proven senior level experience in Service Design within strong Cyber Security and telecom environments
• Strong understanding of SASE frameworks, Zero Trust architecture, and cloud-native security
• Deep knowledge of MDCA (Microsoft Defender for Cloud Apps) or similar security solutions
• Experience in process design, operational modelling, and stakeholder engagement
• Excellent communication and presentation skills

Nice to have skills:

• Familiarity with modern IAM and cloud Proxy technologies
• Hands-on experience with VROM, ITIL, or similar service frameworks

Rate: £400-450 a day

Length: 3 months (will renew)

SDS: Outside IR35

Location: 100% remote

If you have a solid background in telecommunications, a strong grasp of cyber security and SASE concepts, and a passion for building scalable, user-focused service models, apply now!

Please visit our website to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement.

Computer Futures, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy

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