<Back to Search
Application Developer
Chantilly, VAMarch 20th, 2026
MANTECH seeks a motivated, career and customer-oriented Application Developer to join our team in Chantilly, VA The Application Developer will be dedicated full-time to development and enhancement support for existing applications as well as new development. Responsibilities include but are not limited to:Designing, programming/developing, and modifying software systems, applications, and tools, both existing and potentially new in the futureAnalyzing user needs and software requirements to determine feasibility of design within time and cost constraintsCollaborating with teammates, other service providers, vendors, and users to develop new program featuresDeveloping unit and integration tests, in addition to participating in functional and regression tests to ensure programs will produce the desired results and that instructions are correctCorrecting errors by making the appropriate changes and then re-checking the program to ensure the desired result was produced. As well as, reviewing help desk messages periodically and working with other teams to troubleshoot and resolve production issuesParticipating in code reviews by reviewing and incorporating feedback from teammates as well as providing feedback to others based on existing standards and recommended programming practices.Deploying code to development, test, and production environments using existing DevOps infrastructure/tools Minimum Qualifications:High School Diploma/GED with 7+ years of experience in the Information Technology fieldStrong Java programming/development skills, with hands-on experienceExperience with HTML, CSS, JavaScript, and at least one modern front-end framework, preferably AngularExperience with, or knowledge of, the Spring Framework and RESTful services and SQL, ORM libraries such as Hibernate/JPAExperience with Git branching and merging within a team to manage source code Preferred Qualifications:Strong ability to manage competing priorities and communication to multiple stakeholdersExperience with, or knowledge of, ElasticsearchExperience with, or knowledge of, best practices for developing secure web applications Clearance Requirements:An active TS/SCI with Polygraph Physical Requirements:Use hands to operate a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.Must be able to remain in a stationary position 50% of the time
Showing 550 of 31,654 matching similar jobs in Shell Valley, ND
- Senior Full Stack Engineer - Build Developer Tools & APIs
- Senior Full Stack Engineer, Compass
- Senior Product Full-Stack Engineer
- Senior Product Full-Stack Engineer – AI-Powered Marketplace
- Senior Full-Stack Engineer — Fintech UI/Backend (Hybrid)
- Senior Full Stack Engineer, Compass
- Senior Mobile Developer (React Native)
- Senior Full-Stack Engineer — Fintech UI/Backend (Hybrid)
- Full Stack Engineer (Middle) ID51937
- Senior Full-stack (React Native/Java) Engineer - Health Care
- Stage Développeur Web Full-Stack – Impact Santé & Projets Réels
- Remote Freelance Frontend Engineer — JS/ReactRemoteMarch 26th, 2026
- Full-Stack Software Analyst - ASP.NET/Angular & APIs
- Fullstack Developer II (Remote)RemoteMarch 26th, 2026
- IOS Developer III (Remote)RemoteMarch 26th, 2026
- Front End Developer III (Remote)RemoteMarch 26th, 2026
- Full-stack Developer – Back-end Focus (Remote, Full-Time)RemoteMarch 26th, 2026
- Senior Full Stack Engineer - Clojure & React Native & Typescript (Remote, Full-Time), PK [AS220]RemoteMarch 26th, 2026
- Remote Junior Full-Stack Engineer: C#/.NET + AngularRemoteMarch 26th, 2026
- Remote Frontend Engineer for AI Analytics & Evaluation
- Senior Full Stack Engineer (Clojure, React Native, Typescript) (Remote, Full-Time) [AS220]RemoteMarch 26th, 2026
- DevOps Engineer
- Senior DevOps Engineer - Remote, Observability & ComplianceRemoteMarch 26th, 2026
- Senior Front-End Engineer - Remote, Impactful Cloud AppsRemoteMarch 26th, 2026
- Openstack Developer
- Golang Developer
- Senior .NET Full-Stack Engineer (Remote, Secret Clearance)
- Especialista Full-Stack – Redes, Segurança e Incidentes (Hybrid)
- Golang Developer
- Engineering Foundry - Software Engineering Full-stack Developer– Consultant
- Manager - GenAI Full Stack Developer
- Manager - GenAI Full Stack Developer
- Genesys Developer
- Sharepoint Developer
- Lead Sharepoint Developer
- Devops- Terraform
- Lead AEM Developer
- ServiceNow Developer
- devops with chef
- Azure Devops Migration