Senior C# Backend Developer
Summary
Build and own high-throughput C# backend services for fintech systems, focusing on low-latency transaction processing and real-time data feeds using .NET 6/8, Kafka, Redis, and MongoDB.
Hytech is a leading management consulting firm headquartered in Australia and Singapore, specialising in digital transformation for fintech and financial services organisations. We deliver end-to-end consulting services and provide robust middle- and back-office solutions that enable our clients to optimise operations, enhance efficiency, and stay ahead in a fast-evolving digital landscape.
With more than 2,000 professionals worldwide, Hytech has a strong and growing international presence, with offices across Australia, Singapore, Malaysia, Taiwan, the Philippines, Thailand, Morocco, Cyprus, Dubai, and beyond.
About Role
Key Responsibilities
- Drive backend development and iteration for high-throughput systems, independently owning the design, development, and deployment of core modules including transaction processing and real-time data feeds.
- Build high-concurrency services using .NET 6/8, leveraging multi-threading, asynchronous programming, and locking mechanisms to ensure stable, low-latency performance in demanding production environments.
- Design and implement system solutions for order‑processing or workflow‑orchestration platforms, from architecture to deployment, with ongoing performance tuning to eliminate bottlenecks.
- Participate in architectural design and solution reviews, troubleshoot complex production incidents, and continuously enhance system high availability.
- Write clean, maintainable code, participate in code reviews, produce technical documentation, and collaborate with cross-functional teams to deliver integration milestones.
- Stay ahead of emerging technologies, support project delivery, and develop third‑party integrations, plugins, or API interfaces as needed.
Requirements
- Bachelor's degree or higher in Computer Science or a related field, with 5+ years of C# backend development experience and proven ability to lead core module development independently.
- Deep expertise in C# multi-threading, asynchronous programming, and concurrency control, with a track record of resolving real-world high-concurrency challenges.
- Prior experience building latency‑sensitive or high‑throughput systems; experience with real‑time data processing or workflow engines is highly preferred.
- Proficient in .NET 6/8 and ASP.NET Core, with a solid understanding of garbage collection (GC), dependency injection (DI), middleware, and other low-level framework features.
- Strong working knowledge of Redis, Kafka, and MongoDB; expertise in MySQL database design and SQL query optimization.
- Demonstrated capability in architectural design and production troubleshooting, with a disciplined approach to coding standards.
- Excellent communication and teamwork skills, ability to perform under pressure, and a proactive attitude toward learning new technologies.
Preferred Qualifications
- Hands‑on experience with third‑party system integration, plugin development, or platform administration.
- Background in building large‑scale, mission‑critical backend systems (e.g., logistics, IoT, or fintech, financial market).
- Active open‑source contributions or a technical blog showcasing expertise.
What We Offer
- Easy access to public transportation (LRT & KTM).
- Corporate insurance coverage, including dental, optical, and outpatient claims.
- Gym and fitness claims.
- Ongoing training and development opportunities.
- Exposure to exciting projects that support career growth and professional development.