Principal Software Engineer with 25K sign on bonus

Leidos Holding$154K — $278K *
Information Technology
15+ years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's in Computer Science or related field; equivalent experience may be considered.
  • 20 years of relevant software engineering experience.
  • Active Top Secret/SCI clearance with Polygraph required.
  • Strong knowledge of React, Java, and/or C++.
  • Proficiency in writing test scripts in Python, preferably using Robot Framework.

Responsibilities

  • Collaborate with developers to design and validate front-end features.
  • Integrate UI components with back-end services in Java or C++.
  • Participate in Agile development activities, including sprint planning and code reviews.
  • Document quality assurance processes and test case results.
  • Investigate and implement front-end automation tools to boost efficiency.

Benefits

  • Eligible for a $25,000 sign-on bonus.
  • Work in an Agile team environment that promotes collaboration.
  • Opportunity to contribute to meaningful projects with relevant technologies.
  • Exposure to a variety of modern web technologies.
Full Job Description
This position is eligible for a sign on bonus of $25,000.

Primary Responsibilities:
  • Collaborate with developers to design, implement, and validate features in React and related front-end libraries.
  • Support integration of UI components with back-end services written in Java and/or C++.
  • Participate in Agile development teams, contributing to sprint planning, code reviews, and daily stand-ups.
  • Document test cases, results, and processes to support ongoing quality assurance.
  • Explore and apply other front-end automation tools as appropriate to improve efficiency.

Basic Qualifications
  • Bachelor's degree in Computer Science or related discipline from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor's degree. Masters Degrees may count toward experience requirements
  • 20 years of relevant experience
  • Clearance Requirement:Active Top Secret/SCI clearance with Polygraph.


Preferred Qualifications
  • Experience with front-end development and/or UI testing.
  • Familiarity with React, Java, and/or C++.
  • Ability to write test scripts in Python (Robot Framework experience strongly preferred).
  • Hands-on experience with Robot Framework for UI automation.
  • Exposure to other front-end automation tools (e.g., Selenium, Cypress).
  • Knowledge of modern web technologies: JavaScript, TypeScript, HTML, CSS.
  • Experience working in Agile development environments.


CSSRC

conmd

Original Posting:
June 15, 2026

Pay Range:
Pay Range $154,050.00 - $278,475.00

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.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

Internship Programs

For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

Benefits and Culture

Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

Join the Team

Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

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Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

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