C++ Software Engineer (AI modernization)

Doran Jones Inc.•Dallas, TX

About The Position

We are looking for an experienced C++ Engineer to lead the modernization of a legacy C++ application into a modular, maintainable, and scalable product. This role is unique in its integration of Generative AI. You will partner with a GenAI engineering team to reverse-engineer complex codebases and define strategies for forward-engineering into modern languages. Mclaren Strategic Solutions is a leading-edge global technology consulting firm, addressing critical challenges across industries such as retail, financial services, and healthcare. Integrating a powerful ecosystem of platforms with capital-efficient execution, McLaren specializes in digital transformation to help businesses optimize operations, accelerate revenue, and achieve scalable outcomes. McLarenâs expertise spans the development of customer-centric applications, modernizing systems for cost-effectiveness and security, and leveraging cloud scalability for future-ready architectures. With a deep commitment to operational excellence, McLaren provides comprehensive managed services, including application maintenance, cybersecurity, platform solutions, and AI-optimized operations, ensuring seamless, secure, and efficient performance. From supply chain automation to compliance and analytics, McLaren drives measurable impact: improving workforce productivity, reducing inventory costs, and cutting technology ownership expenses. With its emphasis on automation and zero business downtime, McLaren facilitates seamless migrations from legacy systems to modern platforms, enabling organizations to harness the full potential of digital transformation. Backed by strategic partnerships and a proven delivery model, McLaren empowers clients to innovate, modernize, and achieve lasting success in todayâs digital economy. Mclaren is a certified minority owned business through the NMSDC and 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 McLaren. 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. Visit McLaren Strategic Solutions to learn more! Doran Jones Inc. is proud to be part of the McLaren Strategic Ventures Group.

Requirements

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.

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.

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