Sr. Software Developer

Description What if thesoftware you developeddirectlyenabled some ofthe nation's mostcritical missions? AsaSenior Software Developer, you'll domore than writeexceptional code, you'llhelp build innovative, secure, and scalablesolutions that supportIntelligence Communityoperations.If you're passionateabout modern softwareengineering, enjoy collaboratingin Agile teams, andthrive on solvingcomplex technical challenges, Leidos wants tohear from you. On the Maru Program, you'll join a high-performing teamwhere your ideasare valued, yourtechnical expertise istrusted, and yourwork has atangible impact. Workingalongside software engineers, architects, DevSecOpsengineers, cybersecurityprofessionals, and missionstakeholders, you'll developnext-generation applicationsthatdeliver mission-critical capabilities ina fast-pacedAgile environment. This is youropportunity to buildcutting-edge softwarewhile contributing towork that trulymatters. What You'll Do As a SeniorSoftware Developer, you'll play akey role indesigning, developing,testing, and deployingsecure, scalableapplications that supportenterprise and missionoperations. Please note Gaithersburg, MD is the program's primary work location. Clearance Level Required: Active Top Secret/SCI with the ability to successfully pass a Polygraph examination. Primary Responsibilities: Design, develop, test, deploy, and maintainenterprise software applicationsusing modern developmentpractices. Collaborate with ProductOwners, Scrum Masters, architects, and fellowdevelopers to deliverhigh-quality softwareinAgile sprints. Participate in sprintplanning, backlog refinement, daily stand-ups, sprint reviews, andretrospectives. Develop clean, maintainable, and well-documentedcode following securecoding standards andbest practices. Design and implementRESTful APIs, microservices, and distributed applicationarchitectures. Performcode reviews andmentor junior developersto promote engineeringexcellence and knowledgesharing. Troubleshoot complex applicationissues and performroot cause analysisto improve systemreliability and performance. Develop automated unit, integration, andend-to-endtests to ensuresoftware quality. Collaborate with DevSecOpsteams to implementCI/CD pipelinesand automated deploymentprocesses. Optimize application performance, scalability, and securityacrossenterprise environments. Participate in architecturediscussions and contributeto technical roadmapsandmodernization initiatives. Support production deploymentsand resolve issuesinmission-criticalenvironments Required Qualifications: US citizenship is required per contract. Bachelor's degree in Computer Science, Software Engineering, or related field and 8-12 years of prior relevant experience or Master's with 6-10 years of prior relevant experience. 8+ yearsof professional softwaredevelopment experience. Strong proficiency in one or more object-oriented programming languages such as: Java C# Python C++ Experience developing web-based applications andenterprise softwaresolutions. Experience designing andconsuming REST APIs. Experience working withrelational and/orNoSQL databases. Strong understanding ofobject-oriented designprinciples and softwaredesignpatterns. Experience using Gitor other distributedversion control systems. Experience working withinAgileScrum or SAFedevelopment environments. Excellent analytical, debugging, andproblem-solvingskills. Strong written andverbal communication skills. PreferredQualifications: Experience developingcloud-native applicationsin AWS, Azure, or other cloudplatforms. Experience with containerization technologies suchas Docker andKubernetes. Experience building microservicesarchitectures. Familiarity with DevSecOpspractices and CI/CDtools including Jenkins, GitLab CI, orAzure DevOps. Experience with Infrastructureas Codetools such asTerraform or Ansible. Knowledge of messagebrokers such asKafka or RabbitMQ. Experience with front-end frameworks suchas React, Angular, or Vue.js. Familiarity withElasticsearch, Redis, orother enterprise technologies. Experience with securesoftware development lifecycle(SSDLC)practices. Security+ certificationor other DoD8570/8140 compliantcertification. #Maru

#NSBA

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: August 6, 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 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. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit . Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at . Securing Your Data Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at View email address on click.appcast.io . If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission ( . Commitment to Non-Discrimination 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. #Featuredjob

REQNUMBER: R-00188991

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. Leidos