Senior Security Architect(HLD)

Persistent Systems; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Persistent is seeking a Security Solutions Architect to author high quality SDDs and design secure architectures across data protection, SIEM, IAM, EDR/MDM, and cloud/on‑prem environments in the UK.

You will partner with IT operations, compliance, risk management and application teams to translate requirements into solid designs, evaluate security products, and ensure GDPR, ISO 27001, and other standards are met. Strong documentation and cloud experience are essential.

Qualifications

• Experience authoring substantial quality high level designs.
• Expertise in producing security solutions.
• Expertise in designing and integrating various security tools.
• Experience with Infrastructure cloud solutions (AWS, GCP, Azure).
• Bachelor's degree in computer science, Cybersecurity, Information Systems, or related field (master's preferred).
• 3+ years in a security architect or solution designer role.
• Familiarity with industry standards and frameworks such as NIST, ISO 27001, TOGAF.
• Strong documentation skills writing SDDs, architecture diagrams, and technical specifications.
• Certifications such as CISSP, SABSA, TOGAF, CCSP, or AWS/Azure Security are a plus.

Responsibilities

• Develop SDDs for security solutions aligned with architecture and policies.
• Design and architect solutions across DLP, SIEM, IAM, EDR/MDM, and cloud/on‑prem security.
• Collaborate with IT operations, application teams, compliance, and risk management to gather requirements and translate them into secure technical designs.
• Evaluate and recommend security products, tools, and technologies.
• Ensure solutions meet GDPR, HIPAA, and ISO 27001 compliance.
• Support solution implementation teams with architecture guidance and technical documentation.
• Maintain up-to-date knowledge of emerging security threats and best practices to enhance solution designs.

Skills

SDD authoring

Security design

Security architecture

Cloud security design

Documentation

Education

Bachelor's degree in CS/Cybersecurity/Info Systems

Master's preferred

Tools

NIST framework

ISO 27001

TOGAF

AWS/Azure/GCP security

Job description

Responsibilities

• Develop Solution Design Documents (SDDs) for security solutions, ensuring alignment with enterprise architecture and security policies.
• Design and architect solutions across various security domains including:
  • Data Loss Prevention (DLP)
  • Security Information and Event Management (SIEM)
  • Identity and Access Management (IAM)
  • Endpoint Detection and Response (EDR), MDM, and Endpoint Management tools
  • Cloud and On-Prem Security Solutions
• Collaborate with stakeholders such as IT operations, application teams, compliance, and risk management to gather requirements and translate them into secure technical designs.
• Evaluate and recommend security products, tools, and technologies.
• Ensure solutions meet compliance, data privacy, and regulatory requirements (e.g., GDPR, HIPAA, ISO 27001).
• Support solution implementation teams with architecture guidance and technical documentation.
• Maintain up-to-date knowledge of emerging security threats and best practices to continuously enhance solution designs.

Requirements

• Experience in authoring substantial quality high level designs-Must
• Expertise in producing security solutions
• Expertise in designing and integrating various security tools specially.
• Expertise in Infrastructure cloud solutions (AWS, GCP, Azure), Proven experience designing security solutions across multiple domains including DLP, SIEM, IAM, and Endpoint Security.
• Bachelor's degree in computer science, Cybersecurity, Information Systems, or related field (master's preferred).
• Experience in cybersecurity with 3+ years in a security architect or solution designer role.
• Familiarity with industry standards and frameworks such as NIST, ISO 27001, TOGAF.
• Strong documentation skills with experience writing SDDs, architecture diagrams, and technical specifications.
• Certifications such as CISSP, SABSA, TOGAF, CCSP, or AWS/Azure Security are a plus.

About Persistent

We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what's next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem. Our disruptor's mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We have delivered 21 sequential quarters of growth with $389.7M in Q1 FY26 revenue, up 3.9% Q-o-Q and 18.8% Y-o-Y growth. Our 25,000+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries. We have been named the fastest-growing Indian IT services brand in the "Brand Finance India 100" 2025 report. We was also cited as a Leader in the ISG Provider Lens 2025 for Digital Engineering Services 2025 and the Everest Group Talent Readiness for Next-generation Application Services PEAK Matrix® Assessment 2025.

Company Culture

• Accelerate growth, both professionally and personally
• Impact the world in powerful, positive ways, using the latest technologies
• Enjoy collaborative innovation, with diversity and work-life wellbeing at the core
• Unlock global opportunities to work and learn with the industry's best

Let’s unleash your full potential at Persistent - persistent.com/careers

Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.