Senior Solution Architect

Job Description:

• Role: Senior Solution Architect
• Day Rate: £680 per day (Inside IR35)
• Location:2 days per week on-site
• Clearance: Active SC Cleared clearance required
• Contract Length: 6 months initial contract

Role Overview

We are seeking a Senior Solution Architect to join one of our Government Clients across a technology platform design project.

You will own and define the target state architecture, driving technology modernisation across an estate that combines legacy .NET services, modern cloud-native components, identity and security platforms, and AWS managed data services.

Key Responsibilities

• Technical Design Authority: Produce HLDs/LLDs, ADRs, and NFRs; govern design approvals via ARBs and CABs.
• Modernisation Roadmap: Define migration paths to retire legacy tech (.NET WPF, Terraform tech debt, dual Vue.js/React footprint).
• Cloud & Security: Design scalable patterns using AWS Well-Architected principles, Docker containerisation, and identity tools
• Data Architecture: Oversee logical/physical data across PostgreSQL, MySQL, Oracle, and Elasticsearch/OpenSearch with a focus on data minimisation and security

Key Requirements

Essential:

• 10+ years in software engineering/architecture, with 3+ years as a Solution/Technical Architect on complex platforms.
• Active SC Clearance
• Proven experience in technology modernisation and legacy-to-cloud migration paths.
• Core tech stack: .NET / .NET Core, Python, JavaScript/TypeScript (Vue.js, React).
• AWS Managed Services (RDS, SQS, DynamoDB, OpenSearch, ECR) & AWS Well-Architected Framework.
• Terraform (IaC) and Docker at scale.
• Identity, authentication, and API Gateway platforms (e.g. WSO2, RADIUS).
• Background in regulated, security-conscious, or public sector environments.

Desirable:

• TOGAF or AWS Certified Solutions Architect (Professional).
• AWS SageMaker or ML/analytics tooling.

£650.00 - £680.00 / day

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