Overview
Engineering secure, scalable technology.
Results-driven technology professional specialising in cloud and enterprise architecture, infrastructure security, DevOps/IaC, networking and enterprise voice. I focus on turning complex technology estates into practical, secure and supportable solutions.
Aijaz A Siddiqui
Cloud Security – Infrastructure
Spire Healthcare · April 2024 – Present
AWS and Azure hybrid cloud, on-premises infrastructure, IaaS/PaaS, migration, modernisation, high availability and disaster recovery.
Microsoft Defender for threat and vulnerability protection, Microsoft Sentinel for security monitoring and investigation, alongside Entra ID, PIM, Conditional Access and governance.
Terraform, CloudFormation, ARM, Azure DevOps and automation.
Microsoft Defender & Sentinel
My security work includes enterprise Microsoft Security frameworks, E5 tooling, threat and vulnerability mitigation, and collaboration with cloud infrastructure teams and a managed SOC. I also use KQL, Azure Log Analytics and Logic Apps to support detection and automated incident routing.
Cloud and On-Premises
My architecture experience spans cloud and traditional on-premises environments, including hybrid IT, infrastructure, networking and enterprise voice. I design with the existing estate, integration points, operational constraints and target-state requirements in mind.
Technology with an architecture mindset.
I have over 18 years of experience designing, implementing and managing scalable infrastructure and cloud solutions. My work spans enterprise architecture, cloud migration, infrastructure security, networking, DevOps/IaC and specialist voice technologies. I work across business and technical teams, translating requirements into roadmaps, architectures, designs and operational solutions.
What I work on
Cloud and enterprise architecture, security architecture, infrastructure as code, cloud migration, high availability and disaster recovery, network architecture, enterprise voice and technology adoption.
How I approach problems
Understand the business requirement, map the current estate, identify risks and constraints, design a practical target state, automate where possible, and leave clear documentation and governance behind.
Experience
Projects & Case Studies
Real-world technical work across cloud security, infrastructure as code, hybrid architecture and enterprise voice. Each case study covers the problem, business requirement, architecture, technology, my role, implementation, security considerations, challenges and outcome.
Technology Stack
Platforms, tools and disciplines I work with across cloud, security, DevOps, networking and voice.
Cloud & Architecture
DevOps & IaC
Security & Governance
Networking & Voice
Certifications
Professional certifications spanning enterprise architecture, cloud, security operations, networking, enterprise voice and service delivery.
Technical notes, architecture insights, troubleshooting stories, lessons learned and technical deep-dives.
AIJAZ A SIDDIQUI
Cloud • Security • Infrastructure • Architecture • Voice
Email: aijazazeesh@gmail.com | Mobile: (+44)-07720 613 850
Professional Profile
Results-driven professional with over 18 years of extensive expertise in designing, implementing, and managing scalable infrastructure and cloud solutions. Skilled in optimizing performance, ensuring high availability, and mitigating risks. Proven expertise in managing stakeholder relationships, monitoring emerging technologies, and aligning business and technology strategies to drive organisational transformation.
Core Expertise
Cloud & Enterprise Architecture: AWS, Azure, System Architecture, Application Modernisation & Migration, High Availability, Disaster Recovery, TOGAF Framework.
DevOps & Infrastructure as Code (IaC): Azure DevOps (ADO), CI/CD Pipelines, Automation, Configuration Management, Terraform, CloudFormation, ARM Templates.
Security Architecture, Governance & Compliance: Zero-Trust Reference Architecture, ISO 27001, NIST Frameworks, Cyber Essentials Plus, Data Privacy, Risk Analysis, Enterprise Firewalls.
Core Networking: TCP/IP, DNS, Load Balancing, Static & Dynamic Routing, Network Traffic Analysis.
Project Delivery: Agile Methodologies, Scrum, Kanban, Waterfall, Team Building, Vendor Management.
Work Experience
Certifications
- TOGAF Enterprise Architecture
- PRINCE2 Foundation
- ITIL v3
- Microsoft Azure Security Engineer – AZ500
- Microsoft Security Operation Analyst – SC200
- Certified in Cybersecurity (ISC2)
- AWS Solutions Architect Associate
- Microsoft 365 Security Administration – MS500
- Microsoft Teams Voice Engineer Expert – MS720
- CCNA - Security
- CCNA – Routing & Switching
- CompTIA Server+ Certification
- CompTIA Network Infra Professional
Education
MSc — London South Bank University, London (2008)
Telecommunications and Computer Networks Engineering
References
Available upon request
Let's connect.
For professional enquiries, architecture discussions, technical collaboration or speaking/blog opportunities.