Senior C++ Software Engineer (low latency trading)

Who is Hiring; Wrocław; On-site; PLN 210,000 - 310,000; Full time

Benefits offered by this job

Private Medical & Dental care

Life Insurance

MyBenefit program

Internal Mobility

LuxTalent platform

Job summary

Luxoft is seeking an experienced C developer for a global client connectivity trading systems project, based in Wrocław. The role emphasizes high-performance, scalable architectures, multithreading, and low-latency design within a financial services setting.

You will collaborate with global teams to implement solutions and support regulatory changes. Strong C background, Linux/Unix expertise, and experience in trading environments are essential.

Qualifications

• 5-7 years of hands-on C development experience.
• Strong Linux/Unix programming background.
• Experience in financial services or trading domain with FIX protocol is a plus.
• Designing high-performance, distributed, low-latency systems.
• Excellent communication to explain complex concepts to IT and business stakeholders.

Responsibilities

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

Skills

C development

Multithreading

Linux/Unix

Socket programming

Trading domain

STL / templates

Performance / low-latency

Communication

Job description

Join us in Luxoft! (opportunity for PL based candidates ). Paid Referrals Equipment Private Medical & Dental care & Life Insurance (covered by us on Employment contract ) MyBenefit program (sports card, well-being program etc.) (covered by us on Employment contract ) Internal Mobility program - possibility of rotation between projects, locations, accounts LuxTalent platform (webinars, training, courses) ... and many more!

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.

Mandatory Skills Description:

• 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.

Languages:

English Upper Intermediate