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)