C++ Software Engineer (financial services/trading domain)

Luxoft; Kraków; On-site; PLN 180,000 - 320,000; Full time

Job summary

Luxoft Kraków is seeking an experienced C++ developer to design, build, and optimize global client connectivity trading systems, including FIX protocol integrations. You will contribute to architecture, deliver high-throughput services, and work with cross-global teams to meet market regulatory changes.

The role emphasizes multithreading, low latency, and scalable infrastructure, with collaboration across analysts, developers, and business stakeholders in a global environment.

Qualifications

• 5–7 years of hands-on C++ development experience.
• 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.

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

C++ programming

Multithreading

Data structures

STL

Templates

Pointers

Socket programming

Algorithms

Linux/Unix

Financial services domain

FIX protocol

Order-state handling

High-performance systems

Communication skills

Tools

Java

Job 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.

Mandatory Skills

• 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 Skills

• 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.