Senior Platform Engineer – Fintech Trading Systems

DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD.; Singapore; On-site; SGD 180,000 - 300,000; Full time

Job summary

Dymon Asia Capital is seeking a Platform Engineer to design, develop, test, and maintain production-grade applications using C# and modern .NET. You will help build trading, risk, pricing, portfolio, market-data, and post-trade systems, supporting day-to-day investment decisions.

The role emphasizes performance, scalability, observability, and reliability, with opportunities to modernize legacy apps and migrate to cloud-based, service-oriented platforms.

Qualifications

• 10+ years of enterprise application development experience in C# and .NET.
• Strong OO design, concurrency, and asynchronous programming skills.
• Experience with SQL design and relational databases (SQLServer, PostgreSQL).
• Familiarity with CI/CD, automated testing, and source control practices.
• Finance domain exposure is highly desirable.

Responsibilities

• Design, develop, test, and maintain production-grade applications using C#/.NET.
• Build and enhance trading, risk, pricing, portfolio, market-data, and post-trade systems.
• Develop services and APIs supporting trade booking, positions, P&L, exposure, valuation, and risk analytics.
• Improve system performance, scalability, reliability, observability, and operational supportability.
• Contribute to the modernization of legacy applications and migration towards cloud-based, service-oriented platforms.
• Work with Redis, relational databases, messaging systems, and distributed-computing components where appropriate.
• Write comprehensive units, integration, regression, and automated tests.
• Participate in technical design, code reviews, incident investigation, and continuous improvement of engineering practices.

Skills

C#

.NET

REST APIs

gRPC

Distributed systems

Asynchronous programming

Software architecture

Problem solving

Communication

Analytical skills

Education

Bachelor's degree in Computer Science or related field

Master's preferred

Tools

Redis

SQLServer

PostgreSQL

Azure

Docker

CI/CD

Infrastructure as Code

Job description

Dymon Asia Capital is seeking a Platform Engineer to design, develop, test, and maintain production-grade applications using C# and modern .NET. You will help build trading, risk, pricing, portfolio, market-data, and post-trade systems, supporting day-to-day investment decisions.

The role emphasizes performance, scalability, observability, and reliability, with opportunities to modernize legacy apps and migrate to cloud-based, service-oriented platforms.