Low-Latency C++ Developer

Luxoft; Singapore; On-site; SGD 75,000 - 100,000; Full time

Job summary

A leading technology company in Singapore is seeking a C++ engineer to design and build high-performance applications that process large volumes of real-time data. The ideal candidate will have strong proficiency in modern C++, experience with market data, and knowledge of building low latency systems. Responsibilities include designing and maintaining services, optimizing components, and collaborating with various teams to deliver robust solutions.

Qualifications

• Strong proficiency in modern C++ (C++17/20 or later).
• Hands-on experience with Market Data.
• Solid understanding of concurrency and synchronization patterns.
• Proven experience building performance-critical systems.
• Strong knowledge of data structures, algorithms, and optimization.
• Practical experience with Linux systems programming.
• Experience using profiling and performance analysis tools.
• Proficiency with version control and build systems.
• Excellent problem-solving skills and attention to detail.

Responsibilities

• Design and maintain high-performance C++ services.
• Optimize components for efficiency.
• Develop networking and I/O layers for data handling.
• Profile and debug performance issues.
• Collaborate with teams to translate requirements into solutions.
• Write clean production code with tests.
• Participate in code reviews and continuous improvement.

Skills

Modern C++ (C++17/20 or later)

Market Data

Concurrency and synchronization

Real time or low latency systems

Computer science fundamentals

Linux systems programming

Profiling and performance analysis tools

Version control (Git)

Problem-solving skills

Job description

Project description

We are looking for a C++ engineer to design and build high performance, low latency applications that process large volumes of real time data. You will work on systems where microseconds and throughput matter, optimizing every layer from algorithms and data structures to networking and OS interaction.

Responsibilities

• Design, implement, and maintain high performance C++ services handling high message rates and low latency workloads.
• Optimize existing components for latency, throughput, and CPU/memory efficiency.
• Develop and tune networking, messaging, and I/O layers to handle large data volumes reliably.
• Profile and debug performance issues at application, OS, and network levels.
• Collaborate with quantitative, trading, and infrastructure teams (or analogous business/tech teams) to translate requirements into robust technical solutions.
• Write clean, production quality code with appropriate tests and documentation.
• Participate in code reviews, design discussions, and continuous improvement of engineering practices.

Skills

Must have

• Strong proficiency in modern C++ (C++17/20 or later)
• Hands‑on experience with Market Data
• Solid understanding of concurrency and synchronization (lock free / low lock patterns, atomics, memory models, etc.).
• Proven experience building performance critical, real time, or low latency systems (e.g., networking, trading systems, telemetry, gaming engines, or similar).
• Strong knowledge of computer science fundamentals: data structures, algorithms, memory management, and optimization.
• Practical experience with Linux systems programming (sockets, epoll/select, threads, memory management, CPU affinity, etc.).
• Experience using profiling, benchmarking, and performance analysis tools (e.g., perf, valgrind, flame graphs, CPU/memory profilers).
• Proficiency with version control (Git) and standard build systems (CMake, Ninja, etc.).
• Excellent problem‑solving skills and attention to detail; ability to work in a fast‑paced environment.

Nice to have

• Experience with kernel bypass or user space networking technologies (e.g., DPDK, RDMA, VMA, Solarflare/OpenOnload) - helpful but not required.
• Experience in financial markets, market data distribution, order routing, or exchange connectivity.
• Familiarity with common market data protocols (e.g., FIX, MDP, ITCH, proprietary exchange feeds) is a plus.
• Experience with multicast, low latency networking, and clock synchronization (e.g., PTP).
• Exposure to hardware aware optimization (NUMA, cache optimization, vectorization/SIMD, CPU pinning).
• Experience with monitoring/telemetry for high performance systems (latency histograms, throughput metrics, SLAs).
• Familiarity with scripting languages (e.g., Python, Bash) for tooling and automation.
• KDB+
• Data Analysis with python (pytorch, pandas, arrow)