Backend Engineer – HPC & GPU for Sensor Systems

Leidos LLC; San Diego (CA); On-site; USD 94,000 - 157,000; Full time

Benefits offered by this job

Competitive compensation

Health and Wellness programs

Income protection

Paid leave and retirement

Job summary

Leidos is seeking a backend software engineer to collaborate with scientists and engineers on advancing radar, optical, and infrared sensor algorithms. You will build scalable backend systems for scientific computing in distributed environments and optimize code for GPU acceleration.

Proficiency in C/C++ and Linux/Unix is required, with experience in HPC, MPI, and AI/ML concepts. A TS clearance is preferred, and the role offers heavy emphasis on rigorous software engineering and documentation.

Qualifications

• Bachelor’s degree with 4+ years backend experience or Master’s with 2+ years.
• Equivalent experience may be considered in place of a degree.
• U.S. citizenship and ability to obtain Top Secret clearance; active Top Secret preferred.
• Strong expertise in C/C++ backend development for large-scale apps.
• Experience with HPC, parallel/distributed processing (MPI).
• Hands-on GPU/CUDA programming and optimization.
• Familiarity with AI/ML and LLM concepts.
• Strong math/physics background; translate theory to software.
• Proficiency in Linux/Unix environments and scientific programming.
• Solid software engineering principles and documentation skills.

Responsibilities

• Design, develop, and optimize algorithms for radar/optical/IR sensor systems.
• Build scalable backend systems for scientific computing in distributed environments.
• Refactor and improve scientific codebases for efficiency and scalability.
• Translate existing code for GPU/CUDA acceleration and parallel execution.
• Test, document, maintain, and enhance software in Linux/Unix environments.
• Collaborate in a team valuing technical excellence and growth.

Skills

C/C++ backend development

High-performance computing

GPU/CUDA programming

Parallel/distributed processing

Linux/Unix development

Software engineering principles

AI/ML & LLM concepts

Education

Bachelor’s degree in CS/Math/Physics or related

Master’s degree with 2+ years experience

Tools

MPI

Git/GitLab

MATLAB

Fortran

Job description

Leidos is seeking a backend software engineer to collaborate with scientists and engineers on advancing radar, optical, and infrared sensor algorithms. You will build scalable backend systems for scientific computing in distributed environments and optimize code for GPU acceleration.

Proficiency in C/C++ and Linux/Unix is required, with experience in HPC, MPI, and AI/ML concepts. A TS clearance is preferred, and the role offers heavy emphasis on rigorous software engineering and documentation.