Senior Web Developer (Real‑Time Trading Systems)
Company Overview:
Role Overview:
Key Responsibilities:
- Migrate functionality from a legacy C# desktop application to a modern web platform
- Re‑implement complex business logic for high‑performance, real‑time web interfaces
- Build and optimise real‑time data visualisations with minimal latency
- Improve WebSocket‑based data pipelines, including message routing and compression
- Optimise UI performance for large, frequently updating data sets
- Collaborate with infrastructure and backend teams on new feature development
- Provide production support and resolve issues in live systems
- Introduce and maintain automated testing frameworks and best practices
Key Requirements:
- 5+ years of professional experience in C# / .NET development (ASP.NET Core Web APIs)
- Strong experience with modern JavaScript frameworks, ideally Vue.js (Vue 3) and TypeScript
- Proven background building real‑time web applications using WebSockets, SSE, or similar
- Experience with high‑performance data rendering (virtualisation, efficient DOM updates)
- Familiarity with binary data protocols (e.g. Protobuf or equivalent)
- Experience using Web Workers to offload CPU‑intensive tasks
- Solid SQL knowledge and experience with relational databases and ORMs
- Exposure to caching technologies such as Redis
- Experience with message brokers (e.g. Kafka, RabbitMQ, or similar)
Nice to Have:
- Experience with high‑performance data grid libraries
- Knowledge of modern state management and CSS frameworks
- Understanding of authentication and SSO systems (OAuth2, SAML, etc.)
- Background in trading, fintech, or financial services environments
Location & Work Setup:
- Based in Hong Kong
- Primarily onsite with flexibility depending on team requirements
Why Join:
- Work on mission‑critical systems operating in real time
- High level of technical ownership and autonomy
- Collaborative, non‑hierarchical engineering culture
- Competitive compensation aligned with top‑tier trading firms
- Opportunity to deepen expertise across both finance and advanced engineering
FAQs
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