[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Interactive Brokers Group jobs](https://jobs.opennash.com/companies/interactive-brokers-group/) · [Search jobs](/search/) Interactive Brokers Group · Budapest, HU # C++ Software Engineer Budapest, HU Full-time Software Engineering Listed on Interactive Brokers Group’s official careers site. Posted September 28, 2026. Check that it is still open and apply there. [Apply on Interactive Brokers Group’s careers site →](https://jobs.dayforcehcm.com/en-US/ibgllc/CANDIDATEPORTAL/jobs/2457) [OpenNash Jobs](https://jobs.opennash.com/) / [Interactive Brokers Group](https://jobs.opennash.com/companies/interactive-brokers-group/) / C++ Software Engineer ## Job description About the team We are a small, collaborative software development team supporting market-making and brokerage systems. The role’s primary responsibility will be maintaining and improving an automated market-making process. In addition, you will contribute to a variety of backend development projects across the brokerage environment. These projects may involve improving existing applications, investigating issues and developing new functionality. Our systems are primarily written in C++ and run on Linux. What you’ll do - Maintain, enhance, and support an automated market-making application - Develop and maintain C++ and python backend applications and services used in brokerage-related systems. - Investigate issues in existing software, identify root causes, and implement reliable fixes. - Use AI-assisted development tools, such as Claude and Codex, responsibly to support design, implementation, testing, debugging, and code review. - Write clear, maintainable, and well-tested code. - Work primarily in a Linux environment using GCC and common command-line development tools. - Collaborate closely with other developers and stakeholders to understand requirements and deliver practical solutions. What we’re looking for Required - Good programming ability in C++ appropriate to your level of experience. - Understanding of object-oriented programming, common data structures, algorithms, and the C++ Standard Library. - Strong logical and analytical problem-solving skills. - Ability to read, understand, debug, and improve an existing C++ codebase. - Familiarity with Linux or a strong willingness to work in a Linux-based development environment. - Familiarity with version control. - Care and attention to detail, particularly when working on systems that support trading and market-making activity. - Ability to communicate clearly, ask good questions, and work effectively as part of a small team. - Willingness to take ownership of tasks and follow them through to completion. - A degree in Computer Science, Mathematics, Physics, Engineering, or a related field—or equivalent practical experience. For junior candidates - University-level knowledge of C++, object-oriented programming, data structures, algorithms, and the STL is sufficient. - Relevant personal, academic, internship, or professional programming experience is welcome. - You should be eager to learn from an existing codebase and develop your skills in production software development. For mid-level candidates - Professional experience developing and maintaining C++ applications. - Experience debugging production issues and working with existing, long-lived codebases. - A practical understanding of software design, testing, performance, and maintainability. - Ability to work independently on well-defined tasks while knowing when to involve others. Nice to have - Experience with financial systems, trading systems, market making, prediction markets, or other data-intensive backend systems ## At a glance - Posted by the employer: Sep 28, 2026 - First seen by OpenNash: Oct 10, 2026 - Last checked: Oct 17, 2026 - Listed for: 19 days - Location: Budapest, HU - Employment type: Full-time[Apply on Interactive Brokers Group’s careers site →](https://jobs.dayforcehcm.com/en-US/ibgllc/CANDIDATEPORTAL/jobs/2457) ## More jobs at Interactive Brokers Group ### [C++ Software Engineer-Market Risk](https://jobs.opennash.com/companies/interactive-brokers-group/jobs/8788cbc9e60357b89eaa/) Budapest, HU ### [Full Stack Developer](https://jobs.opennash.com/companies/interactive-brokers-group/jobs/bb52a894d96b44ea80ab/) Budapest, HU ### [Java Backend Developer](https://jobs.opennash.com/companies/interactive-brokers-group/jobs/d0ef65bc852fbfcf1f6b/) Budapest, HU ### [Senior Python Developer](https://jobs.opennash.com/companies/interactive-brokers-group/jobs/6b205dec4356105f2d10/) Budapest, HU ### [Senior Software Engineer in Test](https://jobs.opennash.com/companies/interactive-brokers-group/jobs/75a6ee70535221ca28dc/) Budapest, HU ## Similar jobs at other companies ### [Full Stack Software Engineer II and Senior Software Engineer- Microsoft Security - Multiple roles](https://jobs.opennash.com/companies/microsoft/jobs/ce8bde6800315a9405e1/) Microsoft · Israel, Multiple Locations ### [Lead Software Engineer, Software Defined Storage](https://jobs.opennash.com/companies/sandisk/jobs/82c3291c960f66baa772/) Sandisk ### [Staff Software Test Engineer/Software Test Lead](https://jobs.opennash.com/companies/thermo-fisher-scientific/jobs/457bdc55eab7538b5b89/) Thermo Fisher Scientific · Singapore ### [Staff Software Engineer – Host & Secure Compute Software - Cork, Ireland](https://jobs.opennash.com/companies/qualcomm/jobs/d5d830fb764fadb851b4/) Qualcomm · Cork, Ireland ### [Software Engineer, Software Development Engineering (Apps) 3-6 years - Artifactory](https://jobs.opennash.com/companies/sandisk/jobs/14f1b9e58a1e3e67456f/) Sandisk [Software Engineering jobs](/functions/software-engineering/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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