Senior C++ Software Engineer (low latency trading)

Luxoft; Kraków; On-site; PLN 120,000 - 210,000; Full time

Job summary

Luxoft in Kraków is seeking an experienced C++ developer to join a global connectivity trading systems initiative. You will work on high-performance, low-latency platforms used across multi-regional markets.

Join a team shaping architecture, improving performance, and delivering solutions that address evolving regulatory requirements. You will contribute to DevOps-oriented delivery, CI/CD, and modern Linux-based environments, collaborating with analysts, developers, and business stakeholders

Qualifications

• 5-7 years of hands-on C++ development, incl. multithreading, STL, sockets, and templates.
• Strong Linux/Unix programming experience.
• Experience in financial services/trading domain (FIX protocol, order-state).
• Experience building high-performance, low-latency distributed systems.
• Knowledge of equity trading environments in multi-regional/global settings.
• Excellent communication with IT and business stakeholders.

Responsibilities

• Design, develop, and enhance global client connectivity trading systems.
• Contribute to architecture decisions for complex technical challenges.
• Develop functionality to support client requirements and market regulatory changes.
• Improve system performance, reliability, and maintainability.
• Support modernization of existing connectivity platforms.
• Collaborate with analysts, developers, and business stakeholders across global teams.
• Participate in configuration management, releases, and post-implementation support.

Skills

C++ development

Linux/Unix

Financial services trading

Distributed systems

Equity trading environments

Communication skills

Job description

Project description

The project focuses on global client connectivity trading systems, including A4, A4FIX, FIXAJ, and BlueDirect. The team is undertaking a multi-year initiative to modernize existing connectivity platforms, enhance system performance, introduce new functionality, and address evolving market regulatory requirements. The project operates in a global environment, bringing together technical and business stakeholders to solve complex challenges and make architectural decisions.

Responsibilities

• - Design, develop, and enhance global client connectivity trading systems.- Contribute to architectural decisions and solutions for complex technical challenges.- Develop functionality to support client requirements and market regulatory changes.- Improve system performance, reliability, and maintainability.- Support the modernization of existing connectivity platforms.- Help evolve the delivery ecosystem toward a DevOps approach, continuous integration, and continuous delivery.- Collaborate closely with analysts, developers, and business stakeholders across global teams.- Participate in configuration management, releases, and post-implementation support.

SKILLS

Must have

• - 5-7 years of hands-on C++ development experience, including multithreading, data structures, STL, casting, templates, pointers, socket programming, and algorithms.- Strong programming experience in Linux/Unix environments.- Proven development experience within the financial services/trading domain, including order management systems, the FIX protocol, and order-state handling.- Experience designing and developing high-performance, highly available, high-throughput, low-latency, high-capacity, transaction-oriented distributed systems.- Strong understanding of equity trading environments, ideally within a multi-regional or global setting.- Excellent communication skills, with the ability to explain complex functional and non-functional concepts clearly to both IT and business stakeholders.

Nice to have

- Previous experience developing or supporting client connectivity systems, preferably within a trading environment.- Experience with Java, particularly Core Java, Collections, and Reflection.- Experience providing Level 3 (L3) development support in demanding, production-critical environments.