Leidos
Senior Full Stack / UI Developer - 25k Sign on Bonus
Leidos, Columbia, Maryland, United States, 21045
Description
Leidos has a new and exciting opportunity for a
Senior Software Engineer
to play a dual role in User Interface Development and Full Stack Development within our
National Security Sector’s (NSS) Cyber & Analytics Business Area (CABA) . This position offers a chance to contribute to cutting-edge solutions in a mission-critical environment, leveraging innovative technologies to drive impactful results. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At
Leidos , we offer
competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.
Join us and make a difference in National
Security! This position is eligible for a 25k sign on bonus!
Are you looking for a dynamic and challenging opportunity to support a complex program for the Warfighter? Look no further—this is an exciting time to contribute to a mission-critical initiative with lasting impact.
Leidos is seeking a highly skilled
Senior Software Engineer
to play a dual role in
User Interface (UI) Development
and
Full Stack Development . This position provides the opportunity to design, develop, and optimize software solutions in an agile environment, leveraging modern technologies to drive impactful results.
The ideal candidate should have strong
JavaScript expertise
and experience working with
modern application stacks , including microservices and
cloud-native environments
utilizing
Kubernetes and Docker .
Responsibilities Include:
User Interface (UI) Development: Collaborate with Subject Matter Experts and Systems Engineers to refine system requirements and enhance user experience (UX).
Design and develop
intuitive UI components
that maximize usability and performance.
Implement
React
or similar UI frameworks ( Vue, Angular ) to build user-friendly interfaces.
Full Stack Development: Develop and maintain web services and interfaces that integrate seamlessly with UI components.
Build new product features and APIs, ensuring scalable and efficient solutions.
Contribute to
front-end and back-end development
processes, optimizing overall system performance.
Perform testing, troubleshoot software, and apply bug fixes to ensure reliability.
If you’re ready to take on a rewarding role that makes a tangible difference, we encourage you to apply! Basic Qualifications:
Education & Experience:
Bachelor’s degree in Computer Science or related field, plus 14 years of software development experience (or 18 years without a degree).
Technical Expertise:
Deep knowledge of
Java, JavaScript, HTML, CSS, and Python , with strong proficiency in algorithm development and performance optimization.
Front-End Development:
Experience with
React
or similar UI frameworks ( Vue, Angular ), and advanced UI design skills.
Back-End & Full Stack:
Skilled in consuming and creating
REST APIs
and
WebSockets , with expertise in
AWS, Node.js, and Ruby on Rails .
Software Engineering:
Proven ability to design, optimize, and develop solutions for
advanced computing environments .
Cloud & Infrastructure:
Hands-on experience with
AWS
and
modern software engineering principles
Clearance Requirement :
Active
T S/SCI with Polygraph
Preferred Qualifications: Experience with JavaScript 3D libraries such as Three.js is preferred, but not required
If you're a
problem-solver, a strategist, and an engineer who thrives on pushing technology forward , this is the role for you. Join a team where
your expertise drives impact and innovation . Apply today!
conmd cssrc
At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.”
If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in.
Original Posting:
July 11, 2025 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 $126,100.00 - $227,950.00 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.
Senior Software Engineer
to play a dual role in User Interface Development and Full Stack Development within our
National Security Sector’s (NSS) Cyber & Analytics Business Area (CABA) . This position offers a chance to contribute to cutting-edge solutions in a mission-critical environment, leveraging innovative technologies to drive impactful results. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At
Leidos , we offer
competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.
Join us and make a difference in National
Security! This position is eligible for a 25k sign on bonus!
Are you looking for a dynamic and challenging opportunity to support a complex program for the Warfighter? Look no further—this is an exciting time to contribute to a mission-critical initiative with lasting impact.
Leidos is seeking a highly skilled
Senior Software Engineer
to play a dual role in
User Interface (UI) Development
and
Full Stack Development . This position provides the opportunity to design, develop, and optimize software solutions in an agile environment, leveraging modern technologies to drive impactful results.
The ideal candidate should have strong
JavaScript expertise
and experience working with
modern application stacks , including microservices and
cloud-native environments
utilizing
Kubernetes and Docker .
Responsibilities Include:
User Interface (UI) Development: Collaborate with Subject Matter Experts and Systems Engineers to refine system requirements and enhance user experience (UX).
Design and develop
intuitive UI components
that maximize usability and performance.
Implement
React
or similar UI frameworks ( Vue, Angular ) to build user-friendly interfaces.
Full Stack Development: Develop and maintain web services and interfaces that integrate seamlessly with UI components.
Build new product features and APIs, ensuring scalable and efficient solutions.
Contribute to
front-end and back-end development
processes, optimizing overall system performance.
Perform testing, troubleshoot software, and apply bug fixes to ensure reliability.
If you’re ready to take on a rewarding role that makes a tangible difference, we encourage you to apply! Basic Qualifications:
Education & Experience:
Bachelor’s degree in Computer Science or related field, plus 14 years of software development experience (or 18 years without a degree).
Technical Expertise:
Deep knowledge of
Java, JavaScript, HTML, CSS, and Python , with strong proficiency in algorithm development and performance optimization.
Front-End Development:
Experience with
React
or similar UI frameworks ( Vue, Angular ), and advanced UI design skills.
Back-End & Full Stack:
Skilled in consuming and creating
REST APIs
and
WebSockets , with expertise in
AWS, Node.js, and Ruby on Rails .
Software Engineering:
Proven ability to design, optimize, and develop solutions for
advanced computing environments .
Cloud & Infrastructure:
Hands-on experience with
AWS
and
modern software engineering principles
Clearance Requirement :
Active
T S/SCI with Polygraph
Preferred Qualifications: Experience with JavaScript 3D libraries such as Three.js is preferred, but not required
If you're a
problem-solver, a strategist, and an engineer who thrives on pushing technology forward , this is the role for you. Join a team where
your expertise drives impact and innovation . Apply today!
conmd cssrc
At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.”
If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in.
Original Posting:
July 11, 2025 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 $126,100.00 - $227,950.00 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.