{"schemaVersion":"jobsearcher.job.v1","id":"7c5f4d396c0ff52520298382","url":"https://jobsearcher.com/jobs/7c5f4d396c0ff52520298382","canonicalUrl":"https://jobsearcher.com/jobs/7c5f4d396c0ff52520298382","title":"Lead Application Developer","description":"540 is seeking a hands-on Lead Application Developer to provide both technical leadership and direct development support for a high-performing team. This working lead role is responsible for planning and coordinating the team's work, developing code and overseeing the quality and progress of other developers. As a subject matter expert, you will be called on to help identify and integrate new or replacement technologies, debug and troubleshoot critical path issues, and promote and deliver efficient, performant, high-quality code in adherence with industry best standards. The ideal candidate is a full-stack developer with strong proficiency in both front-end and back-end technologies.This is a DoD project that supports the Defense Acquisition community in making authoritative and trusted data available for analysis, oversight, insight, and decision-making over a large portfolio of acquisition programs. The team manages a central platform that integrates and shares acquisition data through modern APIs, with front- and back-end tools supporting user interaction and reporting. This single point of access is architected on top of a governed data framework to ensure consistency spanning upstream data providers and downstream data consumers. The platform has officially supplanted its predecessor (having achieved Initial Operating Capability) and is transitioning to Full Operating Capability, requiring an efficient and integrated contractor team to maintain, enhance, sustain, and test the system using Agile and DevSecOps practices.Location: Must be local to the National Capital Region (NCR). This position offers significant remote flexibility, with occasional onsite meetings in Arlington, VA as required by the customerCitizenship & Clearance Requirement: per client requirements, must be a US Citizen with the ability to obtain a DoD Secret clearanceEducation Requirement: Bachelor's Degree540 Internal Thrive Level: Senior Software EngineerWHY 540?540 is a forward-thinking company that the government turns to in order to #GetShitDone. We do more than talk about it, we break down barriers to innovation and build impactful tech. We're looking for someone with big ideas, who thrives on innovation and is a self-starter. If you love to learn about and work with new technologies, we want to talk to you.REQUIRED SKILLS & EXPERIENCE12+ years of overall experienceExperience leading other developers; assigning tasks where necessary, performing code reviews, etc.Proficiency in Java development, including frameworks such as Spring, Flowable and DroolsStrong front-end development experience using Angular, HTML, CSS, JavaScript and BootstrapExperience deploying and managing applications with Apache TomcatProficiency with both SQL (PostgreSQL) and NoSQL databases (MongoDB, Redis)Hands-on experience with ElasticSearch for search and analytics functionalityProficient in using Git for version control and BitBucket or Gitlab for source repository managementFamiliarity with unit testing and QA using tools like JUnit, Jasmine, Karma, and PostmanComfortable working in Agile environments using collaboration tools such as Jira, Jira Service Desk, Slack and/or ConfluenceFamiliarity working in cloud environments (Azure preferred)NICE TO HAVE SKILLS & EXPERIENCECode quality assurance using SonarQubeExperience with API-first development strategies and Swagger/OpenAPI specificationsUnderstanding of identity management using ADFS/SAMLExposure to CI/CD pipelines using Jenkins, Gitlab, Docker and ArtifactoryExperience with a broad range of Java development tooling and support, including Maven, Jakarta, YourKit, etc.Experience with ETL development and data migration and supporting tools (i.e. Flyway)BENEFITS & PERKSHealth, dental and vision insurance plansFlexible Spending Account (FSA)401k with employer matchCompany Sponsored Life Insurance, Short and Long Term Disability coverageFlexible PTO + all Federal holidays offProfessional development opportunities (training, certifications, conferences)Paid cloud developer accountsReferral Bonus - good people know good peopleAnnual Social Events (540 week, hackathon, charity golf tournament, etc.)Access to 540's Washington Capitals & Nationals ticketsEQUAL EMPLOYMENT OPPORTUNITY (EEO)540's policy is to provide equal employment opportunity to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.","company":"540","rawCompany":"540","city":"Arlington","state":"VA","isRemote":false,"isActive":false,"createdAt":"2026-06-16T07:40:12.705Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Lead Application Developer","description":"540 is seeking a hands-on Lead Application Developer to provide both technical leadership and direct development support for a high-performing team. This working lead role is responsible for planning and coordinating the team's work, developing code and overseeing the quality and progress of other developers. As a subject matter expert, you will be called on to help identify and integrate new or replacement technologies, debug and troubleshoot critical path issues, and promote and deliver efficient, performant, high-quality code in adherence with industry best standards. The ideal candidate is a full-stack developer with strong proficiency in both front-end and back-end technologies.This is a DoD project that supports the Defense Acquisition community in making authoritative and trusted data available for analysis, oversight, insight, and decision-making over a large portfolio of acquisition programs. The team manages a central platform that integrates and shares acquisition data through modern APIs, with front- and back-end tools supporting user interaction and reporting. This single point of access is architected on top of a governed data framework to ensure consistency spanning upstream data providers and downstream data consumers. The platform has officially supplanted its predecessor (having achieved Initial Operating Capability) and is transitioning to Full Operating Capability, requiring an efficient and integrated contractor team to maintain, enhance, sustain, and test the system using Agile and DevSecOps practices.Location: Must be local to the National Capital Region (NCR). This position offers significant remote flexibility, with occasional onsite meetings in Arlington, VA as required by the customerCitizenship & Clearance Requirement: per client requirements, must be a US Citizen with the ability to obtain a DoD Secret clearanceEducation Requirement: Bachelor's Degree540 Internal Thrive Level: Senior Software EngineerWHY 540?540 is a forward-thinking company that the government turns to in order to #GetShitDone. We do more than talk about it, we break down barriers to innovation and build impactful tech. We're looking for someone with big ideas, who thrives on innovation and is a self-starter. If you love to learn about and work with new technologies, we want to talk to you.REQUIRED SKILLS & EXPERIENCE12+ years of overall experienceExperience leading other developers; assigning tasks where necessary, performing code reviews, etc.Proficiency in Java development, including frameworks such as Spring, Flowable and DroolsStrong front-end development experience using Angular, HTML, CSS, JavaScript and BootstrapExperience deploying and managing applications with Apache TomcatProficiency with both SQL (PostgreSQL) and NoSQL databases (MongoDB, Redis)Hands-on experience with ElasticSearch for search and analytics functionalityProficient in using Git for version control and BitBucket or Gitlab for source repository managementFamiliarity with unit testing and QA using tools like JUnit, Jasmine, Karma, and PostmanComfortable working in Agile environments using collaboration tools such as Jira, Jira Service Desk, Slack and/or ConfluenceFamiliarity working in cloud environments (Azure preferred)NICE TO HAVE SKILLS & EXPERIENCECode quality assurance using SonarQubeExperience with API-first development strategies and Swagger/OpenAPI specificationsUnderstanding of identity management using ADFS/SAMLExposure to CI/CD pipelines using Jenkins, Gitlab, Docker and ArtifactoryExperience with a broad range of Java development tooling and support, including Maven, Jakarta, YourKit, etc.Experience with ETL development and data migration and supporting tools (i.e. Flyway)BENEFITS & PERKSHealth, dental and vision insurance plansFlexible Spending Account (FSA)401k with employer matchCompany Sponsored Life Insurance, Short and Long Term Disability coverageFlexible PTO + all Federal holidays offProfessional development opportunities (training, certifications, conferences)Paid cloud developer accountsReferral Bonus - good people know good peopleAnnual Social Events (540 week, hackathon, charity golf tournament, etc.)Access to 540's Washington Capitals & Nationals ticketsEQUAL EMPLOYMENT OPPORTUNITY (EEO)540's policy is to provide equal employment opportunity to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.","datePosted":"2026-06-16T07:40:12.705Z","dateModified":"2026-06-16T07:40:12.705Z","hiringOrganization":{"@type":"Organization","name":"540","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Arlington","addressRegion":"VA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"7c5f4d396c0ff52520298382"},"url":"https://jobsearcher.com/jobs/7c5f4d396c0ff52520298382"}}