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

Computer Futures / SThree Group; United Kingdom; Remote; GBP 80,000 - 100,000; Full time

Job summary

A leading company in the telecom sector seeks a Senior Service Designer for a critical project focused on secure connectivity. This role involves designing innovative service models based around SASE frameworks and Zero Trust principles, enhancing the existing service model for Microsoft Defender for Cloud Apps. Ideal candidates will have extensive experience in service design within cyber security and telecom environments.

Qualifications

• Proven senior level experience in Service Design.
• Strong understanding of SASE frameworks, Zero Trust architecture, and cloud-native security.
• Deep knowledge of Microsoft Defender for Cloud Apps or similar security solutions.

Responsibilities

• Lead service design for SASE and DTSE capabilities.
• Design and implement cloud-based access control mechanisms.
• Develop Zero Trust-based solutions to replace traditional remote access technologies.

Skills

Service Design

Cyber Security

Telecom Environments

Zero Trust Architecture

Cloud-native Security

Operational Modelling

Stakeholder Engagement

MDCA Knowledge

Job description

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 click here 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.

To find out more about Computer Futures please visit www.computerfutures.com

Computer Futures, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 1st Floor, 75 King William Street, London, EC4N 7BE, United Kingdom | Partnership Number | OC387148 England and Wales