6-Month contract – Inside IR35 – up to £575 per day
London based – hybrid working – 2 days a week on site
Finance sector – previous experience in this sector required
Overview
We are seeking an experienced Application Solution Architect to lead enterprise application modernisation initiatives. This is a hands‑on architecture leadership role.
The successful candidate will be responsible for defining target architectures, leading application transformation programmes, and establishing architectural standards and design principles across the organisation. This is an out‑and‑out Solution Architect role, with a strong emphasis on application modernisation rather than infrastructure or enterprise architecture.
Key Responsibilities
- Lead the assessment and modernisation of legacy and monolithic applications.
- Develop application modernisation strategies, roadmaps, and target‑state architectures.
- Drive the decomposition of monolithic applications into modular, service‑oriented, or microservices‑based architectures.
- Define migration approaches that balance business continuity, risk, cost, and delivery timelines.
- Identify and reduce technical debt through strategic architecture decisions.
- Own end‑to‑end solution architecture for application transformation programmes.
- Produce solution designs, architecture artefacts, reference architectures, and technical standards.
- Ensure solutions are scalable, secure, resilient, maintainable, and aligned with business objectives.
- Provide architectural oversight throughout the delivery lifecycle.
- Lead migration from traditional Microsoft technology stacks to modern architectures and development approaches.
- Drive adoption of:
- Event‑driven architecture
- Modern front‑end development using React
- Support modernisation of application integration and data access patterns.
- Establish and govern common application design principles and standards.
- Champion architectural approaches including:
- Domain‑Driven Design (DDD)
- Separation of Concerns
- Conduct architecture reviews and provide technical assurance.
Technical Leadership
- Provide leadership and guidance to development teams and technical leads.
- Mentor engineers on modern architecture patterns and best practices.
- Facilitate architecture workshops and technical design sessions.
- Act as the primary architecture authority for application modernisation initiatives.
Stakeholder Engagement
- Collaborate with business stakeholders, programme managers, product owners, and engineering teams.
- Translate business requirements into scalable technical solutions.
- Communicate architectural vision and transformation strategies to both technical and non‑technical audiences.
Required Experience
- Extensive experience as a Solution Architect with a strong focus on application architecture and modernisation.
- Experience modernising legacy Microsoft‑based applications.
- Strong experience designing and implementing microservices architectures.
- Demonstrable experience defining application modernisation strategies and migration roadmaps.
- Experience working across the full software development lifecycle.
- Strong background in:
- C#
- .NET Core / .NET
- ASP.NET
- SQL Server
- REST APIs
- Experience transitioning traditional Microsoft applications to modern architectures.
Front‑End Experience
- Strong understanding of modern front‑end architecture.
