<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 850 of 36,497 matching similar jobs in Shell Valley, ND
- Senior DevOps Engineer
- Java Developer - Hybrid Onsite in Phoenix, AZ - Contract to hire - Only Green Card & US Citizens
- Full Stack Engineer
- Senior Application Developer / Java backend developer
- Application Developer
- Senior Full-Stack Engineer - Hybrid, Dallas
- Mobile Apps Developer for Enterprise Security Platform
- Akamai CDN DevOps Engineer
- Staff Mobile Engineer - Platform
- Senior Full-Stack AI Developer
- React Software Engineer / Web Developer
- Full Stack .NET Developer
- Front-End Tech Architect: Scale UI, Mentor Teams (Remote)
- Full Stack Engineer (Support) - French
- Senior .NET Full-Stack Developer - Remote (EST)
- Mobile Developer
- Full Stack Developer (Python / AI & ML / Database)
- Senior Front End Developer - Fully Cleared
- DevOps Engineer
- Staff Frontend Platform EngineerWashington, DCMarch 27th, 2026
- Java Spring Microservices Developer
- Senior Application Developer - Java
- C# Application Developer with Active Secret Clearance
- Full Stack Developers
- Senior Frontend Developer - Talent Pool
- JAVA Full Stack
- Senior DevOps Engineer - AI Infra & Global Scale
- Front-End Engineer for Empathetic AI Platform (Remote)New York, NYMarch 28th, 2026
- Remote MCP & ChatGPT AI App EngineerAustin, TXMarch 28th, 2026
- Remote Full-Stack Engineer: Python + React
- Senior DevOps Engineer - Remote, AWS, Kubernetes
- DevOps Engineer
- DevOps_Casablanca
- GenAI & Full-Stack ML Engineer - Scale & Security
- Blockchain Developer
- Lead Mulesoft Developer - Work from home
- Senior Full Stack Engineer - Cloud, DevOps & Microservices
- Founding GenAI Full-Stack Engineer - Hybrid
- Senior Java Developer
- DevOps Engineer, Mid