Role: Senior Developer (.NET/C#), Pool Based Wagering
About the Role:
Zensar Technologies is seeking an experienced Senior Backend Developer to join our engineering team in Vienna. You will be working on a core betting platform for a global leader in the sports betting and gaming industry.
This role focuses specifically on the Pool Based Wagering stream. You will be responsible for developing and optimizing high-performance transaction engines that calculate pool dividends and process complex bets in real-time. This is a high-concurrency environment where accuracy and low latency are non-negotiable.
Key Responsibilities:
* Core Development: Design, build, and maintain scalable backend services using .NET Core (C#) for large-scale pool wagering systems.
* High-Volume Processing: Develop solutions to handle massive spikes in transaction volume during major sporting events (e.g., horse racing festivals), ensuring zero downtime.
* Algorithm Implementation: Implement complex mathematical models for pool calculations (tote betting) and dividend distribution.
* Database Optimization: Write and optimize complex SQL queries to ensure data integrity and speed within a high-transaction database environment.
* System Resilience: Diagnose and resolve production issues in a distributed system architecture, focusing on fault tolerance and recovery.
* Collaboration: Work closely with Product Owners and QAs to translate betting logic into robust technical solutions.
Required Technical Skills:
* Primary Language: Expert proficiency in C# and the .NET Framework / .NET Core.
* Database: Strong experience with SQL Server or PostgreSQL, including stored procedures and performance tuning.
* Architecture: Experience with microservices, RESTful APIs, and distributed systems.
* Concurrency: Deep understanding of multi-threading, asynchronous programming, and handling race conditions.
* Tools: Familiarity with Docker, Kubernetes, and CI/CD pipelines (Azure DevOps/Jenkins).
Preferred Domain Knowledge:
* Experience in Sports Betting, High-Frequency Trading (HFT), or Fintech is strongly preferred.
* Understanding of "Pool" or "Parimutuel" betting mechanics is a distinct advantage.
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