HPC Software Engineer III

Reflexive Concepts is seeking a skilled HPC Software Engineer III to join our growing team! Specifically, we are looking for a Software Engineer with deep expertise in parallel programming, performance optimization, Linux systems, and large-scale HPC architecture. The HPC Software Engineer will serve as a technical leader, driving innovation and architectural decisions while mentoring engineers in advanced HPC methodologies.Qualifications: Master's degree in Mathematics, Computer Engineering, Computer Science, or a related discipline from an accredited college or university, plus five (5) years of experience as an HPC Software Engineer in programs and contracts of similar scope, type, and complexity  Bachelor's degree in Mathematics, Computer Engineering, Computer Science, or a related discipline from an accredited college or university, plus seven (7) years of experience as an HPC Software Engineer in programs and contracts of similar scope, type, and complexity Nine (9) years of experience as an HPC Software Engineer in programs and contracts of similar scope, type, and complexity may be substituted for a degree Key Responsibilities: Design, develop, and optimize scalable parallel and distributed systems for high-performance computing environments Implement and maintain parallel and distributed algorithms optimized for scalability and performance across HPC components including CPU, GPU, memory, storage, and network layers Serve as subject matter expert for parallel computing strategies and statistical modeling Drive architectural decisions and mentor engineers in advanced HPC methodologies Install, configure, optimize, and support COTS/GOTS/FOSS software, libraries, and packages in a Linux environment Clearly communicate complex HPC concepts and architectural designs to non-specialist stakeholders and leadership Required Skills: Strong Linux experience, including proficiency with the Linux CLI and Linux-based tooling Experience developing Bash scripts to automate manual processes Recent software development experience using C/C++ and Python Strong experience with parallel programming models such as MPI, OpenMP, and CUDA Deep understanding of multi-threading and concurrency, memory hierarchy and cache optimization, NUMA architectures, vectorization, and SIMD Experience with Git source control Desired Skills: Experience with SQL technologies such as MySQL, MariaDB, and PostgreSQL Experience with distributed big data processing engines such as Apache Spark Experience with HPC schedulers such as Slurm Experience with containerization technologies such as Docker, containerd, and Podman Experience with the Atlassian Tool Suite (JIRA, Confluence)

Created: 2026-03-04