Responsibilities
- Partner with GenAI teams to trace execution paths, uncover implicit behaviors, and identify side effects within large legacy monoliths.
- Build comprehensive system documentation, including component diagrams, sequence flows, dependency maps, and API contracts derived from existing code.
- Define the target architecture and migration phases, using patterns such as the Strangler Fig Pattern for incremental re-platforming.
- Create and refine LLM prompts and retrieval contexts to accelerate code understanding, while validating GenAI outputs to ensure functional parity.
- Convert legacy C++ constructs (memory handling, concurrency, state management) into modern equivalents in the target language.
- Identify hidden dependencies and concurrency hazards. Ensure the new system meets SLAs for performance, security, and observability.
- Drive characterization testing and build regression suites and "golden datasets" to verify behavior during migration.
Required Experience
- 5+ years of experience with C++, including Modern C++ (C++11/14/17; C++20 preferred).
- Proven track record of modernizing large, tightly-coupled codebases.
- Strong mastery of OOP, SOLID principles, and clean architecture.
- Advanced skills using gdb, lldb, or Visual Studio debugger for crash analysis and core dumps.
- Proficiency with CMake is strongly preferred.
- Firm grasp of data structures, algorithms, and performance optimization.
Top Skills
What We Do
Doran Jones Inc. (DJI) is the leading financial services Data Engineering and Application Development firm, specializing in Capital Markets, Risk, and Regulatory Compliance. We are US-based, helping our clients fill gaps in capacity and expertise, reduce risk, and accelerate change. Our leaders average over 25 years of experience in Financial Services and Technology. DJI is repeatedly engaged by the largest and most complex clients for our Agile transformation expertise and practical understanding of the critical relationship between data, architecture, and application development.
DJI has a mission to place more people from non-traditional backgrounds into sustainable technology careers. Through partnerships with non-profit technology programs in underserved communities and Veteran organizations, candidates transition from tech training programs into real IT careers at DJI. Our unique recruitment policy allows us to create exceptional teams, bringing a broad spectrum of experience to our company and creating anything but a traditional consulting firm.
DJI is a wholly-owned subsidiary of McLaren Strategic Ventures, a private equity firm, that invests in start-ups and scale-ups. They provide a full range of highly trusted domain consulting, advisory services, and innovative technologies globally. Doran Jones is able to offer a broad range of technology, deeper AI and machine learning tools, data intelligence, alternative resourcing capabilities, and capital access to invest and digitize at scale. Our clients benefit from this unique portfolio allowing them to accelerate the pace of their own digital transformations through innovative products and services designed around industry-wide issues.
