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Senior Software Engineer
Senior Software Engineer-December 2024
Chantilly
Dec 15, 2025
ABOUT LEIDOS
Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, homeland security
501 - 1,000 employees
Consulting
VIEW COMPANY PROFILE >>
About Senior Software Engineer

  Description

  Join us at Leidos, where your most important work is ahead! You will enjoy great benefits such as paid time off (PTO), flexible schedules, discounted stock purchase plans, career growth, unlimited education and training support, parental paid leave and more! You will have the opportunity to work under the best leadership in the industry at all levels; where supporting their employees and what they do … is what matters.

  Leidos is looking for a Senior Software Engineer who enjoys working individually and in a collaborative team-focused environment. The candidate will prototype, design, develop and integrate unique solutions to hard problems. The candidate will be responsible for leading parts of software development efforts through all aspects of the software engineering life cycle including scope and work estimation, design, documentation, implementation, testing and integration. The candidate will assist in determining and recommending the best designs based on customer business objectives, timelines and other resource constraints. Must be dynamic, innovative, and a self-starting problem solver with the aptitude and attitude to tackle unsolved technical challenges.

  The Senior Software Engineer will:

  Interact with software system engineers and technical team leads to rapidly learn a complex operational system, its subsystems, and components to positively contribute to development

  Determine and communicate system requirements and capabilities in furtherance of the customer’s mission

  Design, develop and document modular, readable, and maintainable solutions to hard problems

  Champion and implement advanced software development practices in an Agile environment

  Recommend and lead changes to development and systems integration that will increase efficiency and development effectiveness

  Required Qualifications:

  Degree in Computer Science, Electrical Engineering, Computer Engineering, or related field and 12+ years of experience. Additional experience in lieu of degree.

  10+ years of experience independently designing and implementing medium to large-sized software systems and components

  Experience with back-end development

  Ability to develop across the full stack of system development

  Ability to setup, configure and use DevOps tools including continuous integration, unit testing, source repos, etc.

  5+ years of experience developing in C#

  5+ years of verifiable experience creating software with two or more of the following technologies:

  Python

  Java,

  JavaScript,

  JQuery,

  Angular or similar frameworks

  Familiarity with Ansible scripting

  Ability to learn new languages and toolchains as the solution space requires

  Ability to communicate effectively in both oral and written media to describe the strengths and weaknesses of software designs and the implementations of those designs

  Knowledge of Linux operating system (centOS or Ubuntu desired)

  Proven experience in solving challenging technical problems

  Desired Qualifications:

  Experience developing with GWT (Google Web Toolkit)

  Ability to create and read Bash scripts

  Experience with PKI and SSL from the programmer’s perspective

  Experience with Agile development methodologies

  Pay Range:

  Pay Range $122,200.00 - $220,900.00

  The Leidos pay range for this job level is a general guideline onlyand 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.

  Original Posting Date:

  01/18/2024

  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.

  REQNUMBER: R-00126949

  All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.

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