IT@JH Research Computing is seeking a HPC Sr. Scientific Software Engineer who will design, build, and support Johns Hopkins University’s high-performance computing and AI research infrastructure. This role integrates elements of both systems and software engineering, ensuring scalable, secure, and reproducible environments for scientific and data-intensive research. The Engineer develops and automates system and application workflows across CPU/GPU clusters, parallel storage, and hybrid cloud platforms. Responsibilities include configuring and optimizing large-scale Linux environments, implementing job scheduling and orchestration frameworks, containerizing applications, and supporting researchers in optimizing performance and reproducibility. Work combines project-based engineering with operational support, requiring both independent problem-solving and close collaboration with the Research Computing team and faculty stakeholders.

Specific Duties & Responsibilities

Software Deployment and Design 

• Develop and refine deployment strategies for scientific software on HPC and AI systems.
• Design computational workflows, selecting optimal software configurations, and utilizing tools like Ansible for automation.
• Assist teams in implementing, tuning, and optimizing AI models and gateway applications (e.g., XDMoD, Coldfront, Open OnDemand, CryoSPARC Live, SBGrid, AI Agents).

Performance Optimization 

• Analyze and optimize the performance of AI models and HPC applications, focusing on GPU-enabled computing.
• Implement parallel processing, distributed computing, and resource management techniques for efficient job execution.

 Integration and Optimization 

• Develop, debug, and maintain software tools, libraries, and frameworks supporting HPC and AI workloads.
• Collaborate with the system team and software vendors (e.g., NVIDIA, Intel, Matlab) to optimize systems for maximum performance.
• Utilize CUDA, DNN, TensorRT, and Intel Compilers to enhance system performance.

HPC Scientific Software Support

• Manage and support scientific software deployment across HPC, cloud-based, and colocation facilities.
• Oversee installation, configuration, and maintenance of HPC packages with tools like CMake, Make, EasyBuild, Spack, and Lua module files

Collaboration and Mentorship

• Work closely with cross-functional teams, including researchers, data scientists, and software developers, to address complex HPC/AI challenges.
• Mentor junior engineers and foster a culture of continuous learning.

Technical Support and Training Workshops and Troubleshooting

• Resolve complex technical issues and perform root cause analysis for HPC/AI software challenges.
• Implement effective solutions to prevent recurrence and improve system reliability
• Provide training workshops for researchers and students, focusing on troubleshooting, optimizing workflows, and effectively using HPC systems.

Learning and Development

• Stay current with advances in HPC and AI technologies and methodologies.
• Incorporate new research findings into existing systems to improve performance and capabilities.

Container Orchestration

• Develop and manage container orchestration strategies to ensure scalability, reliability, and security of applications.
• Oversee the container lifecycle from creation and deployment to scaling and removal.

Documentation and Compliance

• Create comprehensive documentation for system designs, performance metrics, and project status.
• Ensure compliance with security and regulatory standards for all HPC and AI systems.

In Addition to the Duties Described Above

• Design, deploy, and maintain large-scale Linux HPC clusters with CPU/GPU resources, high-speed networks, and distributed storage.
• Develop and maintain automation frameworks for provisioning, monitoring, and software lifecycle management.
• Implement and optimize job scheduling, container orchestration, and workflow automation tools to support diverse research workloads.
• Collaborate with faculty and research teams to parallelize, containerize, and scale computational workflows for multi-GPU and distributed environments.
• Benchmark and tune application performance across architectures, documenting findings and sharing best practices.
• Integrate and support AI/ML frameworks, scientific libraries, and workflow engines (Snakemake, Nextflow, Dask, Ray).
• Ensure system and application reliability through proactive monitoring (Prometheus, Grafana, ELK) and incident response participation.
• Support reproducibility and FAIR data principles through version-controlled, containerized environments.
• Contribute to documentation, training materials, and technical guidance to enhance user experience and self-service capabilities.
• Participate in evaluation and adoption of new technologies to advance performance, efficiency, and sustainability in research computing.

• PhD in a quantitative discipline.
• Five years of experience in HPC user support, software deployment, and performance optimization within an academic or research environment.
• Additional education may substitute for required experience and additional related experience may substitute for required education beyond a high school diploma/graduation equivalent, to the extent permitted by the JHU equivalency formula.

• Eight + years of professional experience in high-performance computing, large-scale systems, or research software engineering.
• Deep proficiency in Linux systems administration, performance tuning, and automation tools (Ansible, Terraform, Jenkins, or similar).
• Experience with cluster management, workload schedulers (e.g., Slurm), and distributed or parallel file systems (e.g., GPFS, Lustre, WekaFS, Ceph).
• Strong background in programming or scripting (Python, Bash, C/C++, Go, or Rust).
• Familiarity with containerization and orchestration technologies used in HPC (Singularity, Apptainer, Docker, Kubernetes).
• Understanding of high-speed interconnects (InfiniBand, 100/400 Gb Ethernet) and storage/data access patterns for AI and analytics.
• Experience developing or maintaining CI/CD pipelines and module environments (Lmod/Spack) for research software.
• Knowledge of GPU computing (CUDA, ROCm), MPI/OpenMP, and AI/ML frameworks.
• Demonstrated ability to collaborate with researchers on performance optimization, workflow design, and reproducible computing.

Classified Title: HPC Sr. Scientific Software Engineer 
Job Posting Title (Working Title): HPC Sr. Scientific Software Engineer (IT@JH Research Computing)   
Role/Level/Range: ATP/04/PG  
Starting Salary Range: $99,800 - $175,000 Annually (Commensurate w/exp.) 
Employee group: Full Time 
Schedule: Mon-Fri, 8:30am-5pm 
FLSA Status: Exempt 
Location: Johns Hopkins Bayview  
Department name: IT@JH Research Computing  
Personnel area: University Administration 

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About Johns Hopkins University

The Johns Hopkins University (JHU) was founded in 1876 as the nation's first research university, dedicated to bringing the benefits of discovery to the world. JHU is the largest private employer in Baltimore and Maryland, making a large economic impact in the city and state. We enroll more than 30,000 full- and part-time students across nine academic divisions, offering in-person and remote learning in over 400 programs. Not only are we located in Baltimore, but we also have a presence in Washington, D.C.

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