C++ Senior Software Engineer (Low-Latency Trading)

OPTIVEUM sp. z o.o. • Swoyersville, PA

2h • PLN 125 - PLN 170 • Hybrid

About The Position

Optiveum is recruiting and contracting for a C++ Senior Software Engineer to join a project for one of the world’s leading global investment banks, delivered together with a large international IT services company. The role involves designing, implementing, and optimising high-performance, low-latency C++ components for exchange connectivity and algorithmic trading systems that support clients across leading European trading venues. The successful candidate will work full-time in a hybrid model, spending three days per week at the client’s office in Wrocław. Candidates must live in or near Wrocław. The engagement is on a B2B basis, with a rate of 125–170 PLN per hour depending on experience.

The engineer will work across the software lifecycle, from analysing trading requirements and delivering functionality to building automated tests and maintaining CI/CD. The role also includes ensuring software quality, security, reliability, and regulatory compliance; monitoring production systems; providing L3 support; and resolving incident root causes. AI-powered tools and MCP-based integrations are used to support everyday work and automate repetitive tasks.

The recruitment process includes an interview with the IT services partner followed by one to three interviews with the bank. Technical tasks are conducted live, and candidates should have a programming environment set up and tested in advance. AI tools, coding assistants, and code generators are not allowed during interviews. The selected candidate will undergo an external HireRight background check covering identity, right to work, education, and employment history. The application name and CV must match the candidate’s official ID exactly. Candidates who participated in a recruitment process for the partner or bank within the past 12 months cannot be considered.

Requirements

• At least 8 years of similar experience.
• Strong modern C++ skills, including C++14/17 or later; C++20 is an advantage. Knowledge of concurrency, memory management, data structures, and algorithmic complexity is expected.
• Linux development and debugging experience, including GDB and shell scripting.
• Experience with C++ unit testing and automated testing frameworks such as Robot Framework.
• Python skills for scripting, test automation, and tooling.
• Experience with Git workflows, CI/CD pipelines, and Ansible.
• L3 production support experience for business-critical systems.
• Confidence using AI coding assistants such as GitHub Copilot.
• Fluent English.
• Polish or EU citizenship, or a permanent residence/work permit valid for at least 12 months.
• Must live in or near Wrocław.
• Application name and CV name must match the official ID document exactly; Polish citizens should include all first names.
• Candidates who participated in a recruitment process for the IT services partner or bank during the last 12 months are ineligible.

Nice To Haves

• Low-latency engineering experience, including lock-free data structures, kernel bypass (DPDK or Solarflare), cache-efficient programming, and NUMA optimisation.
• Performance profiling experience with perf, Intel VTune, flame graphs, or Google Benchmark.
• Hardware-level understanding of CPU caches, branch prediction, memory hierarchies, and NICs.
• Knowledge of financial market protocols such as FIX, ITCH, OUCH, and exchange-native APIs, and trading systems such as exchange connectivity, smart order routing, and algorithmic execution.
• Experience with MCP servers or AI workflow automation.
• Monitoring experience with Corvil or Geneos and PCAP analysis.

Responsibilities

• Design, implement, and optimise low-latency C++ components for exchange connectivity and algorithmic trading.
• Analyse trading requirements and deliver new functionality.
• Build automated tests and maintain CI/CD.
• Ensure software quality, security, reliability, and regulatory compliance.
• Integrate observability and monitor production systems.
• Provide L3 production support and address incident root causes.
• Use AI-powered tools such as GitHub Copilot in everyday work.
• Automate repetitive tasks through MCP-based integrations.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed