2 of 2 Contract Senior .NET Developer Jobs in London

Senior .NET/C# Developer (Oracle to PostgreSQL migration) - Finance - Remote Duration: 6 months Rate: £500 - £600 Start: ASAP My client is looking for a Senior Developer to join the team to help with a migration. They are undertaking a strategic transformation of a legacy system built on PHP and Oracle, migrating to a modern … architecture using PostgreSQL and .NET (C#). This is not a simple lift-and-shift; the project involves re-engineering over 240 Oracle stored procedures, some highly complex, into performant, maintainable C# code. The new system will coexist with the legacy platform during the transition, requiring careful integration and support for business-as-usual (BAU) operations. Key Responsibilities Collaborate … with the existing team to re-engineer Oracle PL/SQL stored procedures into C# services. Design and implement .NET-based components that integrate with both legacy PHP systems and new PostgreSQL databases. Work closely with business analysts and stakeholders to ensure functional parity and identify opportunities for enhancement. Participate in the design of a hybrid architecture that supports More ❯

Senior .NET/C# Developer Oracle to PostgreSQL Migration: Our client is embarking on a strategic transformation of a legacy enterprise platform, rebuilding a long-standing PHP and Oracle-based system into a .NET (C#) and PostgreSQL architecture. Seeking talented developers who are excited to work at the intersection of legacy systems, modern architecture and cutting … edge development tooling. Your Responsibilities: Re-engineer Oracle PL/SQL logic into performant and maintainable C# services. Design and build .NET components that interact with both PostgreSQL and legacy PHP systems. Work closely with BAs and stakeholders to ensure functional parity and identify areas for modernisation or optimisation. Contribute to the design and delivery of a hybrid system … AI tools to assist with code analysis and migration. Participate in code reviews, contribute to testing strategies and support comprehensive documentation efforts. What You'll Bring: Experience developing in .NET/C#, particularly in backend and data access layers. Proven success migrating legacy systems, especially from Oracle to PostgreSQL or similar. Strong working knowledge of Oracle PL/SQL More ❯