Security Solution Designer - Network Segmentation

Security Solution Designer - Network Segmentation

Posted 1 day ago by Talent Smart

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£695 Per day
Inside
Onsite
S1, Orchard Square, Sheffield
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Summary: The Security Solution Designer role requires an experienced professional with a strong background in application and network architecture to develop secure solutions in a regulated financial services environment. The position demands expertise in both application architecture and network security, with a focus on producing high-quality design artifacts. Candidates should possess a software development background and be adept at stakeholder engagement and communication. The role is based in Sheffield and operates inside IR35.

Key Responsibilities:

  • Own end-to-end security solution design, producing high-quality architecture artifacts aligned to enterprise standards and regulatory expectations.
  • Collaborate with CTO, network engineering teams, regulatory stakeholders, and delivery teams to ensure secure and compliant solutions.
  • Design modern software systems and define application standards, patterns, and design principles.
  • Develop network architectures that protect applications, including macro- and micro-segmentation strategies.
  • Produce clear, high-quality architecture documentation.

Key Skills:

  • Strong application architecture experience with recognized architecture patterns.
  • Strong network security and segmentation experience.
  • Software development background with a strong understanding of networking concepts.
  • Experience in a financial services environment with knowledge of regulatory requirements.
  • Strong stakeholder engagement and communication skills.
  • Understanding of NIST and related security frameworks.
  • Experience with architecture modeling tools (BizzDesign, Archi, UML or similar).
  • Proficiency in Jira and Confluence for delivery tracking and documentation.
  • Preferred qualifications include a degree in computer science or related field and relevant security certifications (CISSP, CISM, TOGAF, or SABSA).

Salary (Rate): £695/day

City: Sheffield

Country: United Kingdom

Working Arrangements: on-site

IR35 Status: inside IR35

Seniority Level: Mid-Level

Industry: IT

Detailed Description From Employer:

We are seeking an experienced Security Solution Designer with strong application and network architecture expertise to shape secure, resilient solutions within a regulated financial services environment. This role combines application architecture leadership with network security and segmentation design, requiring someone who can confidently operate across both disciplines.

This is a must-have role for candidates with a software development background first, who deeply understand application architecture, and can also design the network and security controls required to protect those applications.

The role is inside IR35 with a requirement to be in the Sheffield office up to 3-days per week.

The role

You will own end-to-end security solution design, producing high-quality architecture artefacts aligned to enterprise standards, regulatory expectations, and security frameworks (e.g. NIST). You will work closely with CTO and network engineering teams, regulatory stakeholders, and delivery teams to ensure solutions are secure, compliant, and fit for purpose.

This role operates at the intersection of application architecture and network architecture, requiring strong communication, documentation, and stakeholder engagement skills.

Essential experience (must have):

  • Strong application architecture experience:
    • Designing modern software systems using recognised architecture patterns
    • Defining application standards, patterns, and design principles
    • API design and system integration
  • Strong network security and segmentation experience:
    • Designing network architectures that protect applications
    • Macro- and micro-segmentation strategies
    • Understanding of how network controls enforce application security
  • Software development background first, with strong understanding of networking concepts
  • Experience combining application architecture and network architecture into a single cohesive design
  • Experience working in a financial services environment (preferably smaller banks, fintechs, hedge funds, or similar), with exposure to:
    • Regulatory requirements
    • Audit findings and remediation
  • Strong stakeholder engagement and communication skills
  • Proven ability to produce clear, high-quality architecture documentation

Frameworks & tools

  • Strong understanding of NIST and related security frameworks
  • Experience with architecture modelling tools (BizzDesign, Archi, UML or similar)
  • Jira and Confluence for delivery tracking and documentation

Qualifications (preferred)

  • Degree in computer science, software engineering, cybersecurity, or related field
  • CISSP, CISM, or equivalent security certification
  • TOGAF or SABSA certification

More details available on successful application.

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