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Leidos
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September 23, 2026
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Software Engineer I

San Diego, CA
Full-time
Onsite
Entry Level
Leidos is a technology and engineering company serving government and commercial customers with digital and mission solutions. The Software Engineer I will join the Undersea Systems Division to prototype ocean systems, develop Python-based software and interfaces, integrate and test hardware and software solutions, and collaborate with customers and multidisciplinary engineering teams.
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Responsibilities

  • Collaborate with a small engineering team and customers to identify software requirements and evaluate candidate design approaches for solving wide-ranging technical problems
  • Work directly with customers to understand mission needs, translate operational objectives into technical requirements, demonstrate software capabilities, and incorporate feedback throughout development
  • Design and develop maintainable, robust, and performant software applications, services, data pipelines, and user interfaces
  • Develop Python-based software for data processing, analytics, hardware integration, automation, and test applications
  • Build and integrate web-based and desktop user interfaces that enable users to configure systems, visualize data, and monitor operational performance
  • Implement, test, integrate, and verify that software solutions satisfy project and customer requirements for functionality, reliability, performance, and usability
  • Develop and maintain engineering documentation, interface control documents, software requirements specifications, test procedures, and user documentation
  • Communicate regularly across the engineering team and with customers to coordinate development efforts, anticipate design changes, prioritize feature implementations and bug fixes, and solicit feedback
  • Support laboratory, field, and at-sea testing of prototype systems, including troubleshooting software, hardware interfaces, and operational data flows
  • Present technical concepts, development progress, test results, and product demonstrations directly to customers and other stakeholders

Qualification

Required

  • This position will require the candidate to maintain a Secret Clearance
  • This position will require the candidate to work an onsite 9/80B schedule (80 hours of work into nine days over a two-week period, allowing for every other Friday off) to align with the NIWC government team
  • U.S. Citizen with an active SECRET security clearance or the ability to obtain one
  • Bachelor's degree from an accredited institution in Computer Science, Software Engineering, Computer Engineering, or another related STEM field
  • Relevant professional, internship, academic, or project experience developing and integrating software applications
  • Proficiency in Python and experience using Python to develop applications, automation tools, data-processing solutions, or hardware-control software
  • Experience designing, developing, and integrating REST APIs
  • Proficiency in software version-control processes and tools such as Git and GitHub
  • Working knowledge of Linux command-line tools and shell scripting
  • Experience testing software and debugging applications that integrate multiple data sources, services, or hardware components
  • Ability to work effectively within a small, multidisciplinary team and contribute across multiple phases of the software-development lifecycle
  • Ability to interact directly and professionally with customers, including gathering requirements, communicating technical tradeoffs, presenting demonstrations, and responding to feedback
  • Ability to understand complex technical documents and communicate technical ideas effectively in writing, orally, and visually

Preferred

  • Experience with C++ and integrating software with purpose-built electro-mechanical or embedded systems
  • Experience developing modular test architectures that support live hardware, recorded data, simulation, or other test inputs
  • Experience integrating operational telemetry, environmental data, or external web services into software applications
  • Experience developing interactive dashboards, data visualizations, geospatial maps, or configurable filtering capabilities
  • Experience with test automation, build automation, static analysis, and continuous integration processes
  • Familiarity with common embedded or network communications protocols such as Ethernet, TCP/IP, or serial communications
  • Familiarity with embedded electronics test equipment, including power supplies, oscilloscopes, and hardware debuggers
  • Experience supporting laboratory, field, pier-side, or at-sea system integration and testing
  • Experience working directly with government, defense, or technical customers in a rapid-prototyping environment
  • Ability to operate independently, manage changing priorities, and assume broad technical responsibilities within a small team

Benefits

  • Health and Wellness programs
  • Income Protection
  • Paid Leave
  • Retirement
Leidos is an industry and technology leader serving government & commercial customers with smarter, more efficient digital and mission innovations.
Glassdoor
3.9
Founded in 1969
Reston, Virginia, USA
10001+ employees
https://www.leidos.com