Senior Technical Architect

Agntx; Leeds; Hybrid; GBP 90,000 - 110,000; Full time

Job summary

Agntx is seeking a Senior Cloud Architect to lead the design of a government-grade migration in Leeds. You will own end-to-end architecture for migrating live benefits from a legacy platform to a modern AWS-based service, ensuring uninterrupted payments from day one.

You will shape scalable, secure, and resilient solutions, working across on-premise, cloud and hybrid environments with strict compliance and active SC clearance on day one.

Qualifications

• Proven design of scalable, secure and resilient AWS cloud-native solutions.
• Experience with microservices, API-led architectures.
• Event-based patterns, data streaming, and integration.
• Ability to translate business requirements into technical designs.
• Experience with government or regulated environments preferred.

Responsibilities

• Create end-to-end designs for migrating live benefits without service interruption.
• Develop architectures to scale the new service.
• Support theme teams to optimise sub-services.
• Design across on-premise, cloud and hybrid networks, security, and data layers.
• Work with delivery teams across agile, waterfall and hybrid methods from concept to go-live.

Skills

AWS cloud-native design

Security & resilience

Micro-services & API-led architecture

Event-driven design

Architectural modelling & traceability

Job description

THE ROLE

Most senior architect contracts in UK central government are governance seats or greenfield design on a service that does not exist yet. This one is neither. Two live benefits, paid to real claimants every week, are being migrated off a legacy platform onto a modern target service, and you own the technical design for that migration. The constraint is what makes it interesting: nothing can break while it moves. You will be designing cloud-native solutions on AWS that have to carry live statutory payments from day one, which is a very different engineering problem to building something new alongside the old thing and switching over when it is convenient.

YOU WILL

• Create the technical designs that set out how two live benefits migrate from a legacy platform onto the target service, end to end and without interruption to the service
• Develop the technical designs that deliver the key capabilities of the modernisation, covering the architecture the new service needs in order to scale
• Support the theme teams as they optimise their sub-services, working alongside them rather than handing designs over the wall
• Design across on-premise, cloud and hybrid together, covering networking, security, presentation, middleware, database and integration
• Translate business requirements into technical solutions with traceability you can demonstrate to a stakeholder who was not in the room
• Work with delivery teams across agile, waterfall and hybrid environments, from concept through to go-live

WHAT THEY ARE LOOKING FOR

• Proven design of scalable, secure and resilient solutions using AWS cloud-native services. Serverless, containers, managed services and API-led patterns. Lift-and-shift migration, virtualisation and VDI do not meet this requirement and it is the single criterion this role is decided on
• Micro-service and API-led architecture design, with a clear method for setting service boundaries
• Event-based architecture design including publish-subscribe and data streaming. Named patterns and tooling on a real engagement, not a line in a skills list
• Architecture design informed by principles, patterns, technical radars, practices and standards
• Architecture modelling techniques and tools, and the ability to represent a design so that others can build from it
• A held Technical Architect or Solution Architect title. Both are accepted. Enterprise, Infrastructure, Data, Integration and Software architecture are different disciplines and are not what this seat is buying
• Delivery inside UK central government — a department, an arm's length body or a devolved administration. This is a requirement, not a preference. Local government, NHS trusts and regulated finance do not satisfy it
• Active SC clearance on day one. This is a hard requirement. SC-eligible, SC-clearable and lapsed SC do not meet it

ADVANTAGEOUS

• Delivery on a government service carrying statutory or payment obligations
• Public cloud beyond AWS — Azure or Google Cloud also feature on the estate
• Legacy modernisation or platform migration where the outgoing system stayed live throughout
• Presenting architecture to technical governance forums and design authorities
• Experience of a multi-supplier delivery chain with a systems integrator in the middle

THE DETAILS

Location: Leeds — 2 days per week on site, 3 remote

Contract: 12 months

Level: SFIA 5

Clearance: Active SC required on day one