Application Developer (Remote, Philippines) - 1-Year Contract (Renewable)

We are seeking a skilled C# Developer to enhance, maintain, and extend our in-house back-office applications. In this role, you will be responsible for resolving defects, developing new features, and building integration solutions to connect internal systems. The ideal candidate will have strong C#/.NET expertise, experience with enterprise applications, and a passion for writing clean, scalable code.

Responsibilities:

Bug Fixing & Maintenance

• Investigate, diagnose, and resolve issues in existing C#/.NET applications.

• Optimise performance and reliability of legacy and modern systems.
  

Feature Development

• Design and implement new functionalities for back-office applications based on business needs.

• Collaborate with stakeholders to refine requirements and deliver robust solutions within agreed timeframe.
  

System Integration

• Develop interface programs (APIs, file adaptors, file processors, messaging services) to interconnect internal systems.

• Ensure seamless data exchange between applications (e.g., settlement systems, data warehouse).
  

Code Quality & Best Practices

• Write clean, maintainable and well-documented code.

• Participate in code reviews and advocate for improvements in architecture/design.
  

Quality Assurance

• Write and conduct unit testing for all new code

• Implement testable architectures following dependency injection principles

• Refactor legacy code to improve test coverage

• Validate data integrity in integration workflows
  

Requirements:

• 3+ years of professional experience with C# .NET (Framework/Core).

• Proficiency in:

> Back-end development (ASP.NET MVC, Web API, WCF, REST/SOAP).

> Stored procedures within database systems (MSSQL Server).

> Windows applications WinForms, WPF, or console apps).

• Experience with:

> System integrations (file-based workflows, APIs, message brokers like RabbitMQ).

> Debugging tools (Visual Studio Debugger, logging frameworks like Serilog).

• Familiarity with:

> Version control (Git, Azure DevOps).

> Agile/Scrum methodologies.

• Experience modernising legacy systems will be beneficial.

• Diploma / Degree in Computer Science / Information Technology or equivalent

• Plus: Exposure in financial industry with good working experience and understanding of various business processes within securities and futures brokering.