Senior Software Engineer (C++)

Fintal Partners; Chicago (IL); On-site; USD 180,000 - 240,000; Full time

Job summary

Fintal Partners is seeking a Senior C++ Developer to join a high-performance engineering team powering real-time trading across global markets. You will design, develop and optimize low-latency applications, working closely with traders and researchers to deliver cutting-edge solutions.

The role focuses on reducing latency through profiling, tuning, and code optimization, while ensuring scalable and reliable systems for market data processing.

Qualifications

• Proven experience building low-latency, high-performance systems.
• Strong understanding of memory management, multi-threading and concurrent programming.
• Experience profiling applications and optimizing CPU, cache utilization and network performance.
• Excellent knowledge of Linux development environments and systems programming.

Responsibilities

• Design, develop and optimize high-performance C++ applications for low-latency trading environments.
• Reduce system latency through profiling, performance tuning and code optimization.
• Build scalable, resilient software used in electronic trading and market data processing.
• Work closely with traders, quantitative researchers and infrastructure engineers to deliver cutting-edge solutions.
• Identify bottlenecks across software and hardware, implementing improvements to maximize throughput and minimize latency.

Skills

Low-latency programming

Multi-threading

Profiling

Performance tuning

Memory management

Linux systems programming

Concurrent programming

Network performance

Tools

RDMA

DPDK

Kernel bypass

Job description

We are partnering with a leading proprietary trading firm seeking a talented Senior C++ Developer to join a high-performance engineering team building technology that powers real-time trading across global financial markets. This is an opportunity to work on mission-critical systems where performance, reliability, and latency are paramount.

Key Responsibilities

• Design, develop and optimize high-performance C++ applications for low-latency trading environments.
• Reduce system latency through profiling, performance tuning and code optimization.
• Build scalable, resilient software used in electronic trading and market data processing.
• Work closely with traders, quantitative researchers and infrastructure engineers to deliver cutting-edge solutions.
• Identify bottlenecks across software and hardware, implementing improvements to maximize throughput and minimize latency.

Requirements

• Proven experience building low-latency, high-performance systems.
• Deep understanding of performance optimization, memory management, multi-threading and concurrent programming.
• Experience profiling applications and optimizing CPU, cache utilization and network performance.
• Strong knowledge of Linux development environments and systems programming.
• Excellent problem-solving skills and a passion for writing highly efficient code.

Nice to Have

• Experience within proprietary trading, hedge funds or electronic market making.
• Knowledge of networking protocols (TCP/UDP), kernel bypass technologies, RDMA or DPDK.
• Familiarity with exchange connectivity, market data or order management systems.
• Exposure to Python for tooling or automation.

This is an excellent opportunity to work alongside some of the industry's strongest engineers, solving complex technical challenges where every microsecond counts.