Solutions Architect (C#, .NET)

Company: Bestman Solutions
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Job Description:

A major financial market infrastructure is undergoing a multi-year transformation, moving from legacy COBOL-based systems on HPE NonStop to a modern, event-driven, Java-based architecture. This is not a simple migration. It’s a fundamental shift toward scalable, platform-independent systems built on Linux and containerised environments.

You’ll join a Solutions Architecture team within a Software Engineering function, working across both strategic design and hands-on delivery.

Your focus will be a large-scale transformation programme, shaping how legacy platforms evolve into a modern, distributed ecosystem.

What you’ll be doing Design end-to-end solution architectures across complex programmes Translate business and technical requirements into scalable designs Act as the bridge between Enterprise Architecture and engineering teams Define reusable architecture patterns and contribute to engineering standards Collaborate with security, infrastructure, and delivery teams Lead or support proof-of-concepts and prototype development Provide technical leadership, including hands-on Java development where needed Present architectural solutions to a range of stakeholders Ensure consistency, compliance, and quality across systems

What you bring Core experience: Proven background in solution architecture across full delivery lifecycles Experience delivering complex, enterprise-scale systems Strong Java and object-oriented design expertise Experience with event-driven architectures (e.g. Kafka)

Nice to have: Microservices or SOA architectures Containerisation and OpenShift Database design (Oracle, SQL Server, etc.) Experience in regulated or financial environments

Interviews will commence swiftly….

Posted: May 23rd, 2026