Lead Retail Solution Architect - IBM i-series (AS400) to Cloud in London

Energy Jobline ZR; City Of London; On-site; GBP 75,000 - 80,000; Full time

Job summary

A technology-driven company in West London is seeking a Lead Retail Solution Architect to drive architectural transformation and integrate modern cloud platforms with IBM i-series systems. This strategic role requires extensive experience in architecting solutions and mentoring teams. Ideal candidates will demonstrate a strong track record in transitioning IT environments towards product-led delivery models. Competitive salary package offered.

Qualifications

• Extensive experience as a Lead Solution Architect or similar role.
• Proven track record in architectural transformation from stack-oriented to product-driven models.
• Deep expertise with IBM i-series (AS400) and enterprise integration.

Responsibilities

• Define and drive enterprise-wide architecture strategy.
• Establish architectural vision aligned with commercial objectives.
• Design integration patterns between cloud platforms and legacy systems.
• Mentor and coach architects and engineers.

Skills

Enterprise integration

Hybrid architecture

Communication skills

Leadership

Architectural transformation

Cloud architecture

Tools

IBM i-series (AS400)

AWS

Azure

GCP

Job description

Job Description

Lead Retail Solution Architect – IBM i-series (AS400) to Cloud

Location: West London - 5 days on-site

Salary

£75-80,000 per annum

My client is looking to recruit an accomplished Lead Solution Architect to drive a pivotal transformation in their technology organisation. This is a strategic and highly influential role, where you will define the architectural vision, enable product teams, and bridge modern cloud‑platforms with core enterprise systems‑including deep integration with IBM i-series (AS400) environments and distributed operations.

The Role

As Lead Solution Architect, you will shape the organisation's technical strategy, mentor architects and engineers, and influence decision‑making across technology and business domains. You will lead the transition from a technology stack‑oriented delivery model to a product‑centric, outcome‑driven architecture, ensuring scalability, resilience, and alignment with business objectives.

Key Responsibilities

• Define and drive the enterprise‑wide architecture strategy supporting the transition from stack‑centric IT to product‑led, outcome‑focused delivery.
• Establish an architectural vision aligned with commercial objectives, customer experience goals, and operational scalability.
• Design and govern integration patterns between modern cloud platforms, distributed retail/wholesale sites, and IBM i-series (AS400) systems.
• Champion modernisation of Legacy environments, enabling core enterprise capabilities (pricing, inventory, fulfilment) to be consumed via APIs and event‑driven interfaces.
• Act as a trusted advisor to senior technology and business leaders, shaping product strategy through architecture.
• Define and embed architecture principles, standards, and guardrails to support autonomous product teams.
• Lead initiatives to transition delivery teams to product‑aligned operating models, creating scalable architectural patterns and platforms that accelerate delivery.
• Ensure non‑functional requirements—including security, observability, resilience, and performance—are embedded in product and platform design.
• Oversee architectural governance in a way that enables delivery rather than constrains it.
• Mentor and coach solution architects and senior engineers, raising the overall architectural maturity.
• Play a leading role in architecture forums, communities of practice, and design reviews.

Candidate Profile

• Extensive experience as a Lead Solution Architect, Principal Architect, or similar senior architecture leadership role.
• Proven track record of driving architectural transformation, ideally moving from stack‑oriented or project‑centric models to product‑ and outcome‑driven architectures.
• Deep expertise in enterprise integration and hybrid architecture, including hands‑on experience with IBM i-series (AS400) and distributed retail/wholesale site operations.
• Strong understanding of modern architectural paradigms: domain‑driven design, event‑driven architecture, microservices, API‑first.
• Experience shaping and scaling architectures on AWS, Azure, or GCP.
• Exceptional communication and influencing skills with C‑level, business stakeholders, and engineering teams.
• Strong leadership experience guiding teams through large‑scale technical and organisational change.
• Exposure to platform engineering, DevOps, or data architecture.

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