Lead AWS Cloud Architect

Syntax Consultancy Ltd; City Of London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading global IT consultancy is seeking a Lead AWS Cloud Architect for a 6-month contract based in London/Reading (Hybrid). The role requires extensive AWS architecture expertise within Government sectors, involving defining a comprehensive AWS cloud strategy and providing technical governance. The ideal candidate will possess strong leadership and stakeholder management skills while ensuring compliance with security requirements. AWS Cloud certifications are preferred, and candidates must be eligible for SC Security Clearance.

Qualifications

• Extensive AWS Cloud architecture experience in Government sectors.
• Leadership in AWS cloud migration and modernisation.
• Strong knowledge of AWS governance and technical designs.

Responsibilities

• Define end-to-end AWS cloud strategy and architecture.
• Oversee technical designs and implementations across AWS.
• Ensure architecture decisions align with security requirements.

Skills

AWS Cloud architecture expertise

Technical Authority and Design Owner

Stakeholder management

Security/Identity/MFA/Compliance

Terraform/CloudFormation

Education

AWS Cloud certifications (preferred)

Tools

AWS Services (IAM, VPC, AppStream)

CloudTrail, GuardDuty, Entra ID

Job description

Lead AWS Cloud Architect

London / Reading (Hybrid)

6 Month Contract

£(Apply online only)/day (Inside IR35)

Lead AWS Cloud Architect needed with extensive AWS Cloud and proven Government agencies project experience. 6 Month Contract based in London and Reading (Hybrid).

Hybrid Working - 1 day/week working on-site in either London or Reading, and 4 days/week working remotely (WFH).

A chance to work with a leading global IT and Digital transformation business specialising in Government projects.

Starting 1st week in January 2026, and looking to interview/offer by 19 December.

Key skills, experience + tasks will include:

• Must have extensive AWS Cloud architecture expertise gained within Government regulated sectors, and across all phases from design to implementation.
• Acting as the Technical Authority and Design Owner for the AWS cloud migration + modernisation programme.
• Defining the end-to-end AWS cloud strategy, Target Architecture (HLD/LLD), shaping Landing Zone architecture, and overseeing all technical designs and implementation across AWS infrastructure, security, identity, networking, migration planning + EUC (Amazon WorkSpaces / Citrix modernisation).
• Deep knowledge of: AWS Organisations, Control Tower, EUC, Amazon WorkSpaces, IAM, VPC, AppStream, FSLogix, AWS MGN, Terraform/CloudFormation, KMS, GuardDuty, CloudTrail, Entra ID.
• Key Deliverables: strong leadership, strategy, governance, stakeholder management, EUC / Amazon Workspaces, stage-gate assurance, Security/Identity/MFA/Compliance, and BAU transition experience.
• Ensuring all architecture decisions are aligned to the functional, non-functional, financial, and security requirements, including resilience, Conditional Access, CIS/NCSC compliance + cost efficiency.
• Providing technical governance across all phases: Discovery, Strategy, Design, Landing Zone Build, Amazon WorkSpaces deployment, Pilot/Full Migration, implementation + BAU transition.
• AWS Cloud certifications preferred -eg- AWS Solutions Architect (Professional), AWS Security, and AWS Networking.
• Must be eligible to undergo the SC Security Clearance vetting process.