Software Engineer

About the Opportunity

Leidos is seeking an experienced Software Engineer to develop, maintain, integrate, and enhance complex software systems supporting critical mission needs. You will work individually and as part of an engineering team to translate user requirements into software solutions, develop and modify software, integrate capabilities into operational environments, troubleshoot defects, and evaluate software performance. Depending on assignment, the role may also include significant Linux system support, Splunk, scripting, automation, data technologies, and supporting infrastructure.

Why This Role Matters

Mission software must perform reliably within complex technical and operational environments. As a Software Engineer, you will help turn requirements into working capabilities while solving software, data, integration, and performance problems throughout the development lifecycle. Your work will contribute to both the functionality of individual software components and their successful integration into larger mission systems.

What You'll Do

Software Design & Development

• Analyze user requirements to derive software design and performance requirements.
• Design and code new software or modify existing software to add capabilities.
• Develop and implement algorithms to meet system performance and functional standards.
• Debug existing software and correct defects.
• Modify software to adapt to new hardware, correct errors, or improve performance.
• Design, develop, and modify software systems using appropriate scientific analysis and mathematical models to evaluate design outcomes and consequences.

Integration, Data & System Performance

• Integrate existing software into new or modified systems and operating environments.
• Develop data queries for existing or proposed databases and data repositories.
• Design or implement complex database and data-repository interfaces and queries.
• Develop software solutions by analyzing system performance standards, system flows, data usage, work processes, and technical problem areas.
• Work with users and systems engineers to understand requirements, performance expectations, and operating constraints.
• Contribute to system-design decisions involving hardware/software tradeoffs, software reuse, COTS/GOTS alternatives, and allocation of requirements to software components.

Testing, Documentation & Engineering Practices

• Review and test software components for adherence to design requirements and document test results.
• Assist in developing and executing test procedures for software components.
• Resolve software problem reports.
• Write and review software and system documentation.
• Apply software development and design methodologies appropriate to the development environment.
• Recommend improvements to documentation and software-development process standards.
• Serve as a team lead when appropriate to the software-development process and project environment.

This posting is for multiple opportunities

Required Qualifications

Clearance

• TS/SCI with Polygraph upon Application, to be considered for this position.

Education & Experience

• Minimum of seven (7) years of experience as a Software Engineer supporting programs or contracts of similar scope, type, and complexity.
• Bachelor's degree in Computer Science or a related discipline from an accredited college or university.
• Four (4) additional years of Software Engineering experience on projects using similar software processes may be substituted for the bachelor's degree.

Assignment-Specific Technical Requirements

• Technical requirements vary by assignment. Candidates are not expected to meet the requirements of every project profile below; they should meet the requirements associated with the specific project for which they are being considered.
• Project 1 - Linux, Splunk & Automation

Required

• 1+ years of experience with Splunk.
• 2+ years of experience with databases, Ansible, JSON, JavaScript, and Bash scripting.
• 4+ years of experience with Linux.
• Experience providing comprehensive support for systems and servers, including operating system and application installation and configuration, daily operations, and troubleshooting.

Desired

• Working knowledge of data-flow technologies identified for the project, including Niagrafiles, low-latency message transport, smart-collection systems, site-specific distribution management, and relevant protocols.
• Working knowledge of Puppet.
• Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE).

Project 2 - Splunk, Linux & Data Integration

Required

• 2+ years of experience with Splunk, including Splunk Query Language, reporting, dashboards, and visualizations.
• 3+ years of experience with Python, databases, JSON, Bash/Shell scripting, Java, and XML.
• 3+ years of Linux experience providing system/server support, including operating system and application installation, configuration, administration, and troubleshooting.
• Familiarity with automation, distributed computing, load balancing, network protocols, hardware, virtualization, security architectures, firewalls, and switches.

Desired

• Splunk Core Certified Power User certification.

Additional information

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting: August 26, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.