Junior Linux Engineer Jobs in Colorado (NOW HIRING)

DHI Group is seeking an HPC Linux Software Engineer to support a High Performance Computing (HPC) Research and Development (R&D) customer contract. This role is an integral member of the Technical User Support (TUS) team, working on‑site with a dedicated R&D customer to ensure effective use, performance, and reliability of HPC systems and modeling and simulation (mod/sim) software.
The engineer will collaborate closely with the TUS Team Lead, Program Chief Scientist, HPC users, customers, and site operations staff. The role blends hands‑on software engineering, Linux and HPC system support, and direct user engagement, enabling researchers to efficiently run, scale, and troubleshoot mission‑critical workloads in a secure and performance‑sensitive environment. Key Responsibilities Provide technical software engineering and Linux support for HPC modeling and simulation workflows
Support and enhance existing mod/sim codebases, ensuring correctness, stability, and performance
Work directly with HPC users to understand workflows, identify issues, and recommend technical solutions
Troubleshoot and resolve software, scripting, and Linux system issues in an on‑site lab environment
Collaborate with the TUS team, Chief Scientist, and site staff to support R&D mission objectives
Develop, maintain, and document scalable software solutions for Linux‑based HPC platforms
Analyze, debug, and optimize complex C, C++, and/or Fortran applications
Support and improve GUI‑based tools used in modeling and simulation environments
Assist with configuration management, testing, and adherence to software development standards
Conduct code reviews and provide technical mentoring to junior engineers or scientific staff
Design and deliver training workshops, tutorials, or onboarding materials for HPC users and internal teams
Contribute to continuous improvement of user workflows, tools, and HPC support processes Required Qualifications Active TS/SCI w/ Poly
Bachelor’s degree in a STEM‑related discipline
10+ years of professional‑level experience in software engineering or scientific computing
Approximately 5+ years of experience developing and using modeling and simulation software in heterogeneous, multi‑platform environments
Experience supporting HPC user workflows, including modeling and simulation problems and GUI‑based tools
Strong knowledge of High Performance Computing (HPC) environments and related technologies
Demonstrated proficiency in Fortran, C, and/or C++
Proficiency in BASH and Korn shell scripting
Strong Linux operating system proficiency, with the ability to independently troubleshoot and resolve user system issues
Solid understanding of software engineering best practices, including coding standards, unit testing, and configuration management
Proven ability to analyze, debug, maintain, and enhance large, existing codebases
Demonstrated experience across the full software development lifecycle, including requirements definition, design, coding, documentation, and testing of scalable, distributed applications in Linux environments
Experience mentoring junior engineers or scientists and conducting code reviews Preferred Qualifications Experience working directly in customer‑facing or research support roles
Experience designing and delivering technical training, including workshops and tutorials
Familiarity with HPC schedulers, parallel computing concepts, and performance optimization
Experience working in secure or restricted computing environments Required Skills and Competencies Strong communication skills with the ability to collaborate effectively with technical and non‑technical stakeholders
Results‑oriented team player with strong problem‑solving and analytical skills
Superior programming ability with exceptional attention to detail
Strong organizational skills with the ability to balance and prioritize multiple tasks in a fast‑paced R&D environment
Ability to work independently while contributing effectively to a collaborative team