Senior .NET - C# Developer

Morgan McKinley

  • London
  • Contract
  • Full-time
  • 1 month ago
Senior .NET/C# DeveloperOracle 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 architecture supporting phased rollout.
  • Leverage 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 and the ability to translate procedural logic into C#.
  • Solid experience with PostgreSQL, including handling dialect differences and performance tuning.
  • Comfortable working in hybrid environments where legacy and modern platforms coexist.
  • Familiarity with AI-enabled tools that accelerate development and migration tasks.
  • Strong grasp of software architecture principles, design patterns, and integration techniques.
  • Collaborative mindset with excellent communication skills.
Nice to Have:
  • Experience with legacy PHP platforms and their integration challenges.
  • Familiarity with CI/CD pipelines and DevOps workflows.
  • Exposure to microservices, domain-driven design or event-driven architecture.
  • Background in agile delivery.
Please note: This is an initial 6 month contract, deemed inside IR35 and predominantly remote working with the ability to attend the London office as and when required.

Morgan McKinley