{"schemaVersion":"jobsearcher.job.v1","id":"18a80b33837e91d373bb174d","url":"https://jobsearcher.com/jobs/18a80b33837e91d373bb174d","canonicalUrl":"https://jobsearcher.com/jobs/18a80b33837e91d373bb174d","title":"C++ Application Developer","description":"Description:\nLMAX is looking for a C++ Application developer to form the basis of our quantitative risk development team. This team works closely with the operations, risk management and liquidity teams to operate a small amount of proprietary risk for the business. In this position you can expect to take a significant role in the development process of our order management software. A finance and/or trading background is not required.\nWhat you will be working on The majority of our codebase is written in C++, a language which the team has a passionate interest in.\nDesign You will be working with other members of the team to design and implement features for our trading system with a predominant focus on infrastructure. We are looking for developers who are confident in their ability to develop software, both with others and on their own.\nPerformance Working on financial trading software brings some interesting technical challenges in the areas of throughput and latency. Working here you can expect to focus more directly on software performance than at other organisations, while striving to produce code that is easily maintainable. Developing in this area you can expect to be performing investigative work, digging deep into our system to understand how it works, and how it can be improved. You can also expect to develop performance benchmark tests to monitor how are software's performance is improving over time.\nProduction Support Our software runs 24x7, so some element of out of hours and On Call may be required.\nMain Duties and Responsibilities\nProduce clear, well-structured and fully tested C++ code.\nA focus on writing low latency software in the hot-path areas of our system. Spread knowledge throughout the team to avoid siloing.\nThis is a highly collaborative team and you can expect to be working on new software features closely alongside other developers, using pair programming to increase the spread of knowledge.\nContinuously design and implement new features that improve the safety, performance and usability of our software.\nTesting C++ Applications Developer\nWe rely heavily on validating our system using our extensive test suites. We test at all levels of our system from unit testing to full end-to-end tests in which the entire system is launched and tested in a simulated environment. All tests are run every 15 minutes on our CI to give us a fast and reliable feedback cycle. There is no waiting for overnight test suites here. As a developer at LMAX you will be expected to help maintain our test framework so that we can continue to develop high quality code at speed.\nRequirements\nEssential Skills / Experience\nC++ development on a Linux/UNIX environment.\nAutomated C++ Testing. Version Control Systems.\nAbility to understand business requirements and develop systems to meet them.\nAbility to design well documented, simple and elegant systems that are easily maintainable.\nAbility to work independently and with little guidance.\nA finance and/or trading background is not required.\nDesirable Skills / Experience\nTest driven development, with experience in testing at different levels of the system (unit, integration and acceptance tests).\nContinuous Integration (Jenkins).\nKnowledgeable in improving software performance in a systematic way.\nKnowledge of Websocket, TCP/IP and multicast networking.\nAn interest in compilers.\nScience or Maths related degree.\n\nRequirements:\nBenefits:\nSalary: $100,000 - $200,000 per year + Annual Bonus\nMedical, Dental, Vision\n401 (K)\n25 days Paid time off (PTO)\nVacation, sick, and paid holidays\nLife Insurance coverage\n\nDepartment:\nTechnology\nLocation:\nDenver\nUnited States\nContract:","company":"Lmax Group","rawCompany":"lmax group","city":"Denver","state":"CO","isRemote":false,"isActive":false,"createdAt":"2026-04-14T10:49:03.264Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"C++ Application Developer","description":"Description:\nLMAX is looking for a C++ Application developer to form the basis of our quantitative risk development team. This team works closely with the operations, risk management and liquidity teams to operate a small amount of proprietary risk for the business. In this position you can expect to take a significant role in the development process of our order management software. A finance and/or trading background is not required.\nWhat you will be working on The majority of our codebase is written in C++, a language which the team has a passionate interest in.\nDesign You will be working with other members of the team to design and implement features for our trading system with a predominant focus on infrastructure. We are looking for developers who are confident in their ability to develop software, both with others and on their own.\nPerformance Working on financial trading software brings some interesting technical challenges in the areas of throughput and latency. Working here you can expect to focus more directly on software performance than at other organisations, while striving to produce code that is easily maintainable. Developing in this area you can expect to be performing investigative work, digging deep into our system to understand how it works, and how it can be improved. You can also expect to develop performance benchmark tests to monitor how are software's performance is improving over time.\nProduction Support Our software runs 24x7, so some element of out of hours and On Call may be required.\nMain Duties and Responsibilities\nProduce clear, well-structured and fully tested C++ code.\nA focus on writing low latency software in the hot-path areas of our system. Spread knowledge throughout the team to avoid siloing.\nThis is a highly collaborative team and you can expect to be working on new software features closely alongside other developers, using pair programming to increase the spread of knowledge.\nContinuously design and implement new features that improve the safety, performance and usability of our software.\nTesting C++ Applications Developer\nWe rely heavily on validating our system using our extensive test suites. We test at all levels of our system from unit testing to full end-to-end tests in which the entire system is launched and tested in a simulated environment. All tests are run every 15 minutes on our CI to give us a fast and reliable feedback cycle. There is no waiting for overnight test suites here. As a developer at LMAX you will be expected to help maintain our test framework so that we can continue to develop high quality code at speed.\nRequirements\nEssential Skills / Experience\nC++ development on a Linux/UNIX environment.\nAutomated C++ Testing. Version Control Systems.\nAbility to understand business requirements and develop systems to meet them.\nAbility to design well documented, simple and elegant systems that are easily maintainable.\nAbility to work independently and with little guidance.\nA finance and/or trading background is not required.\nDesirable Skills / Experience\nTest driven development, with experience in testing at different levels of the system (unit, integration and acceptance tests).\nContinuous Integration (Jenkins).\nKnowledgeable in improving software performance in a systematic way.\nKnowledge of Websocket, TCP/IP and multicast networking.\nAn interest in compilers.\nScience or Maths related degree.\n\nRequirements:\nBenefits:\nSalary: $100,000 - $200,000 per year + Annual Bonus\nMedical, Dental, Vision\n401 (K)\n25 days Paid time off (PTO)\nVacation, sick, and paid holidays\nLife Insurance coverage\n\nDepartment:\nTechnology\nLocation:\nDenver\nUnited States\nContract:","datePosted":"2026-04-14T10:49:03.264Z","dateModified":"2026-04-14T10:49:03.264Z","hiringOrganization":{"@type":"Organization","name":"Lmax Group","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Denver","addressRegion":"CO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"18a80b33837e91d373bb174d"},"url":"https://jobsearcher.com/jobs/18a80b33837e91d373bb174d"}}