Netrolynx AI
C++Software Developer
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About The Company
Ncounter is a leading technology firm specializing in electronic trading solutions for global financial markets. With a focus on innovation and performance, Ncounter develops high-performance trading systems that enable clients to execute trades efficiently and reliably across diverse asset classes. The company prides itself on fostering a collaborative and dynamic work environment where engineering excellence and technological advancement are at the forefront. Ncounter's commitment to delivering cutting-edge solutions has established its reputation as a trusted partner for financial institutions seeking robust and scalable trading platforms.
About The Role
We are seeking a highly skilled Software Developer with expertise in C++ and a strong background in electronic trading technology. This role is based in London with a hybrid work model, offering a mix of remote and on-site collaboration. As part of our specialist electronic trading technology team, you will be responsible for designing, developing, and maintaining high-performance, low-latency trading systems that operate across global financial markets. Your work will directly impact our core trading infrastructure, supporting critical applications such as matching engines, FIX gateways, and real-time trading platforms.
This position provides an excellent opportunity to work on business-critical systems where performance, availability, and efficiency are paramount. You will collaborate closely with trading, product, and infrastructure teams, contributing to the development lifecycle from conception through deployment and ongoing optimization. The role requires a hands-on approach, with significant exposure to C++, along with Java, Python, and JavaScript within a Linux environment.
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Qualifications
To be successful in this role, candidates should possess at least 5 years of professional software development experience, with a proven track record in building low-latency, high-frequency, or performance-critical systems. Strong C++ development skills are essential, ideally complemented by commercial experience in Java. Candidates should have hands-on experience with the FIX protocol within electronic trading environments and a solid understanding of networking protocols such as TCP/IP, UDP, and multicast.
Expertise in Linux, including multithreading, sockets, IPC, and system-level behavior, is required. A good understanding of concurrency, memory management, and in-memory optimization techniques is vital. Knowledge of NUMA architectures and performance-focused programming practices will be advantageous. Familiarity with Python, SQL, and relational databases is also desirable, as these skills will support broader system development and data processing tasks.
Responsibilities
- Design and develop high-performance matching engines, FIX gateways, and electronic trading applications that meet stringent latency and throughput requirements.
- Build low-latency, multithreaded systems utilizing C++ and Java, ensuring robust and scalable performance under high load.
- Process real-time market and trading data through highly available and resilient systems, maintaining data integrity and timeliness.
- Develop efficient in-memory data structures, lock-free queues, and circular buffers to optimize system performance.
- Work with networking technologies such as TCP/IP, UDP, multicast, and other protocols to facilitate rapid data exchange and connectivity.
- Identify and troubleshoot performance bottlenecks, profile applications, and implement optimizations to enhance system efficiency.
- Support automated testing, DevOps practices, and continuous integration/continuous deployment (CI/CD) pipelines to streamline development workflows.
- Collaborate closely with trading, product, and infrastructure teams throughout the development lifecycle to ensure alignment with business objectives and technical standards.
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Benefits
At Ncounter, we offer a competitive salary package complemented by comprehensive benefits including health insurance, pension schemes, and flexible working arrangements. Our employees enjoy professional development opportunities, including training and certifications, to support their career growth. We foster an innovative and inclusive work environment that encourages collaboration, creativity, and continuous learning. Additionally, our hybrid work model provides flexibility to balance work and personal life, ensuring a positive and productive workplace experience.
Equal Opportunity
Ncounter is committed to creating an inclusive environment where all employees are valued and respected. We are an equal opportunity employer and do not discriminate based on race, gender, age, religion, sexual orientation, disability, or any other protected characteristic. We believe diversity fosters innovation and drives success, and we welcome applicants from all backgrounds to join our team and contribute to our continued growth and excellence.
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