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LeidosLE

Senior Full Stack Node/React Developer

Leidos is an American defense, aviation, information technology, and biomedical research company that provides scientific, engineering, systems integration, and technical services to government and commercial customers.

Leidos

Employee count: 5000+

Salary: 108k-195k USD

United States only

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Leidos is seeking a Senior Full Stack Node/React Developer to be part of the mission solution and help lead SSA’s Digital Modernization Strategy. Join one of our high performing teams responsible for building the next-generation enterprise APIs and modern responsive user interfaces, supporting the Social Security Administration (SSA) and their mission to meet the changing needs of the public, positively impacting at least 65 million American lives per month. We are a team of forward-looking professionals in need of a strong candidate with these key required skills: Strong knowledge of React, Node, Redux, Mobx, Flux, Typescript, and Bootstrap.

If this sounds like a mission you want to be a part of, keep reading!

TEAM CULTURE

Your passion and values might be a good fit for our teams if you answer “yes” to the following questions:

  • Are you looking for a company that puts employees first, with a focus on career, flexibility, and well-being?
  • Do you enjoy collaborating with colleagues and teammates and believe that the best ideas are fostered in an inclusive environment?
  • Are you searching for a team with a strong sense of ownership, urgency, and drive for daily mission success?
  • Are you comfortable with proactive outward communication and technical leadership?
  • Do you enjoy being a catalyst, solving complex problems, and providing innovative solutions?
  • Do you have the flexibility, creativity, and resilience to pivot the mission for success?
  • Do you have the courage to make tough ethical decisions with pride, transparency, and respect?

MENTORSHIP & CAREER GROWTH

Our teams are dedicated to supporting new team members in an environment that celebrates knowledge sharing and mentorship. Experienced team members will be assigned to new hires for one-on-one mentoring, collaborative reviews, and coaching on customer engagement to help each new hire successfully onboard and demonstrate their skills. Projects and tasks are assigned in a way that leverages your strengths and will help you further develop your skillset.

DAY TO DAY RESPONSIBILITIES

Every position we take is more rewarding when you know the why behind it. Know your work makes a difference to support those who need it most. If your passion is enabling life changing service to those around, you this is the place for you. Find you passion in a team environment where all members are valued regardless of contractor or employee status. Find your “Why” with us and take your place in our Leidos Family!!

  • Architect, design, code, and implement next-generation web application using software engineering best practices in the latest technologies: NodeJS, Single Page Application front-end (ReactJS, ReduxJS, MobxJS), NodeJS API Framework (RESTful APIs, Express, Knex), and DevOps (Jenkins, Red Hat OpenShift, Docker, SonarQube, UrbanCode).
  • Provide software expertise in one or more of these areas: Rich Single Page Application modular user interfaces, secure RESTful API micro-services, User Experience (UX) and accessibility (Section 508/WCAG/USDS Web Standards).
  • Investigate and repair application defects regardless of component: front-end, business logic, middleware, or database (PL/SQL and Data Modeling)
  • Brief management, customer, team, or vendors using written or oral skills at appropriate technical level for audience.
  • All other duties as assigned or directed.

FOUNDATION FOR SUCCESS(Basic Qualifications)

  • Bachelor's Degree in Computer Science, Mathematics, Engineering, or a related field. Additional years of experience may be substituted in lieu of degree.
  • Master’s or Doctorate degree may substitute for required experience
  • 8+ years of experience in modern software development with a solid understanding of designing, building, deploying, and running applications.
  • Combined experience building web applications with modern technologies (Node, React, Redux, Mobx, Flux, Typescript, Bootstrap).
  • Prior SSA experience required
  • Must be able to obtain and maintain a Public Trust. Contract requirement.

FACTORS TO HELP YOU SHINE(Required Skills)

These skills will help you succeed in this position:

  • Extensive senior level full-stack software development experience with Node.js and React.js with detailed understanding of user interface frameworks, back-end software architecture interactions and node module capabilities.
  • Strong experience with JavaScript frameworks/technologies such as React.js, Express.js, MobX, Redux or Flux.js.
  • Strong development experience with developing RESTful Web Services using Node.js.
  • Comprehensive knowledge of Scrum and Kanban Agile development process and TDD, BDD, ceremonies including scrums, planning events, backlog grooming, retrospectives and demos.
  • Complex programming, program debugging, data analysis, problem analysis and resolution of issues within open source applications.
  • Strong communication and collaborative skills in providing technical direction and hands-on software development to include design, development and testing.
  • Expertise in writing complex SQL queries in PostgreSQL and optimize queries.
  • Experience with working as part of a large team and managing and resolving merge conflicts and working with upstream and downstream dependencies.
  • Ability to mentor team members on Node.js and React technologies.

HOW TO STAND OUT FROM THE CROWD(Desired Skills)

Showcase your knowledge of modern development through the following experience or skills:

  • Experience with HTML/CSS creation and manipulation.
  • Experience with other JavaScript frameworks such as Express, Restify, Hapi, Sails, JOI, Moment, Axios and Knex.
  • Experience with VersionOne Application Lifecycle Management Tools
  • Experience with Jenkins and Continuous Integration.
  • Experience with databases PostgreSQL and SOLR.
  • Standards & Protocols knowledge including XML, XSLT, WSDL, JSON.
  • Experience with Testing Tools including Mocha, Chai, Jest, Sinon, Supertest, Enzyme, Instanbul, Selenium, Load Runner, JSLint and Cucumber.
  • Experience with source code versioning and Pull Requests with Git and Stash.
  • Experience with IDEs such as VS code.
  • Knowledge of SonarCube, Phabricator, Gerritt, Karma, Jasmine
  • Experience with performance tuning and increasing efficiency of a large enterprise system
  • Knowledge of projects using SAFe methodology.
  • Experience with DevOps processes and implementation.
  • Experience with environments utilizing Cloud Technologies such as Amazon Web Services.
  • Experience with NGiNX web server.
  • Experience with MQLight, Redis In-memory data structure store and message broker.

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams and contribute to our communities. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Every position we take is more rewarding when you know the why behind it. Know your work makes a difference to support those who need it most. If your passion is enabling life changing service to those around, you this is the place for you. Find your passion in a team environment where all members are valued regardless of contractor or employee status. We are excited for you to take your place in our Leidos Family.

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:

April 9, 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 $107,900.00 - $195,050.00

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 the job

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Posted on

Job type

Full Time

Experience level

Salary

Salary: 108k-195k USD

Education

Bachelor degree
Postgraduate degree

Experience

8 years minimum

Experience accepted in place of education

Location requirements

Hiring timezones

United States +/- 0 hours

About Leidos

Learn more about Leidos and their company culture.

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Leidos' story begins in 1969 when Dr. J. Robert Beyster, a visionary scientist, founded Science Applications Incorporated (SAI) in La Jolla, San Diego, California. With a modest investment and a powerful idea, Dr. Beyster embarked on a journey to apply scientific expertise to solve complex problems. The company's early days were marked by a focus on research and engineering, tackling challenges for various government and commercial clients. One of its initial significant projects involved studying radiation-based cancer therapy for the Los Alamos National Laboratory, which laid the groundwork for Leidos' future health business. SAI soon expanded its reach, opening an office in Albuquerque to support the Air Force Weapons Laboratory's work on electromagnetic phenomena, a precursor to the company's Physical Science Group.

Throughout the 1980s, the company, then known as Science Applications International Corporation (SAIC), strategically shifted its focus towards national security and defense, solidifying its position as a key government services provider. This era set the stage for substantial growth and diversification. The 1990s saw SAIC continue to expand its offerings and international presence, securing its first major global contract with the Kuwaiti Defense Forces. A pivotal moment arrived in 2013 when SAIC underwent a significant transformation, splitting into two independent, publicly traded companies: a new company retaining the SAIC name and the original company, which was rebranded as Leidos (a name derived from 'kaleidoscope'). Leidos, as the legal successor to the original SAIC, inherited its pre-2013 stock price and corporate filing history and established its new headquarters in Reston, Virginia. This strategic move allowed Leidos to sharpen its focus on national security, health, and engineering solutions. Another major milestone occurred in August 2016 when Leidos merged with Lockheed Martin's Information Systems & Global Solutions (IS&GS) business, a landmark transaction that created the defense industry's largest IT services provider and significantly expanded Leidos' capabilities and market share. Today, Leidos stands as a Fortune 500® global science and technology leader, employing approximately 47,000 people worldwide and generating billions in annual revenue, committed to making the world safer, healthier, and more efficient through innovation and technology.

Employee benefits

Learn about the employee benefits and perks provided at Leidos.

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Paid sick days

Leidos offers paid sick days.

Health Insurance

Leidos offers health insurance.

Dental Insurance

Leidos offers dental insurance.

Vision Insurance

Leidos offers vision insurance.

View Leidos's employee benefits
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