Software Engineer

Leidos LLC; Maryland; On-site; USD 87,000 - 157,000; Full time

Benefits offered by this job

Health and Wellness programs

Paid Leave

Retirement

Job summary

Leidos is seeking an experienced Software Engineer to develop, maintain, and enhance complex software systems supporting critical mission needs. You will translate user requirements into software solutions, develop and modify software, and troubleshoot defects.

Depending on assignment, roles may include Linux system support, Splunk, scripting, automation, and data technologies. Required TS/SCI with Polygraph upon application and a minimum of seven years of software engineering experience; a

Qualifications

• Minimum seven years of experience as a Software Engineer on programs of similar scope and complexity.
• Bachelor's degree in Computer Science or related discipline; additional years of experience may substitute for the degree.

Responsibilities

• Analyze user requirements to derive software design and performance requirements.
• Design, code, and modify software to add capabilities and improve performance.
• Integrate software into new or modified systems and environments.
• Develop data queries and database interfaces; work with systems engineers to understand requirements and constraints.
• Review and test software components and document results; contribute to software development processes.

Skills

Splunk

Linux

JSON

Bash scripting

JavaScript

Ansible

RHCSA

RHCE

Problem solving

Education

Bachelor's degree in Computer Science

Tools

Puppet

Job description

About Leidos

Leidos is a FORTUNE 500® company bringing a mix of innovative technology and sector expertise to customers in the national security, engineering, and health industries. We deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. The Leidos Intel Sector combines technology-enabled services and mission software capabilities to support Intelligence Community customers as they address evolving national security challenges.

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.

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.
• RedHead Certified System Administrator (RHCSA) or RedHead Certified Engineer (RHCE).

Project 2 – Splunk, Linux & Data Integration

• Required 2+ years of experience with Splunk, including SplunkQuery Language, reporting, dashboards, and visualizations.
• 3+ years of experience with Pythonandscripts.
• 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.
• RedHead Certified System Administrator (RHCSA) or RedHead Certified Engineer (RHCE).

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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

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.

Pay and Benefits

Pay and benefits are fundamental to any career decision. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment‑related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment‑related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.