Senior Trading System Developer

This role is for one of the Weekday's clients

Salary range: Rs 3500000 - Rs 7000000 (ie INR 35-70 LPA)

Min Experience: 5 years

Location: Bangalore

JobType: full-time

We are seeking a Senior Trading System Developer with deep expertise in Java and Python to design and develop next-generation automation and testing tools for institutional trading platforms. This role is critical to enhancing system reliability, validating complex order lifecycles, and ensuring low-latency performance across trading environments. You’ll collaborate with developers, QA engineers, and front-office teams to build frameworks that strengthen automation, accelerate development cycles, and improve overall test coverage.

Key Responsibilities

• Design and implement advanced frameworks for automated testing of order entry, modification, routing, and risk management logic.
• Develop tools using Java, Python, or Rust to simulate and validate end-to-end trading workflows across both low-touch and high-touch systems.
• Build self-service platforms for trade simulations, venue behavior replay, and FIX protocol validation.
• Automate health checks, venue certification scripts, and regression pipelines in collaboration with front-office support and development teams.
• Integrate automation frameworks into CI/CD pipelines for pre-deployment checks, latency verification, and continuous reliability monitoring.
• Enhance observability and debugging through fault-tolerant, data-rich tooling to aid rapid issue reproduction.
• Expand testing capabilities for FIX, REST, and WebSocket APIs across exchanges and internal trading systems.

Required Qualifications

• 5+ years of experience developing and testing distributed or high-performance trading systems.
• Strong proficiency in Java (11+) and Python for automation frameworks, trading harnesses, and performance optimization.
• Experience with OMS/EMS systems and a solid understanding of order lifecycles, FIX messaging, and venue connectivity.
• Knowledge of test automation frameworks and continuous integration practices.
• Familiarity with electronic trading workflows, market structures, and latency analysis.
• Proficiency in scripting languages (Python, Shell) for monitoring, testing, and automation.
• Understanding of high-performance messaging technologies such as Aeron, Chronicle, or Kafka.

Preferred Qualifications

• Experience developing exchange certification tools, FIX simulators, or regression harnesses.
• Exposure to market-making systems, risk engines, or smart order routers.
• Prior work experience in crypto or traditional electronic trading environments.

Skills

Trading Systems | Automation | Java | Core Java | Python | FIX Protocol | OMS/EMS | CI/CD | Low Latency Systems