Java Developer Freelance jobs in Frederick

C# Developer/Programmer Analyst 3 - Richmond, VA 23219 (Onsite for one month then Hybrid two days) YSI Jobs - YSI Admin ID Job Title Job Description 798830 C# Developer/Programmer Analyst 3 Yakshna Solutions, Inc ., (YSI) is a CMMI Level 3 assessed, ISO 9001, 20000:1, 27001 certified, woman-owned sm

A company is looking for a Java Full Stack Developer. Key Responsibilities Develop applications using Java 8/JEE, Angular 2+, React.js, SQL, Spring, HTML5, CSS, JavaScript, and TypeScript Write scalable, secure, maintainable code and create, deploy, and maintain automated system tests Collaborate wi

C# Developer/Programmer Analyst 3 - Richmond, VA 23219 (Onsite for one month then Hybrid two days) YSI Jobs - YSI Admin ID Job Title Job Description 798830 C# Developer/Programmer Analyst 3 Yakshna Solutions, Inc., (YSI) is a CMMI Level 3 assessed, ISO 9001, 20000:1, 27001 certified, woman-owned sma

Corp-to-Corp contract. Since it is federal government contract, requires US citizenship. Lives within commute distance only(VA, DC, MD). Senior Java developer, currently work on Spring Boot microservice. Knows well about Angular UI Job Types: Full-time, Contract Pay: $80.00 - $100.00 per hour Applic

(ID: 2026-1537) Axle is a bioscience and information technology company that offers advancements in translational research, biomedical informatics, and data science applications to research centers and healthcare organizations nationally and abroad. With experts in biomedical science, software engin

Work Schedule Standard (Mon-Fri) Environmental Conditions Office Job Description At Thermo Fisher Scientific, you’ll discover meaningful work that makes a positive impact on a global scale. Join our colleagues in bringing our Mission to life - enabling our customers to make the world healthier, clea

Requirements Must have: - Ability to obtain and maintain a Public Trust security clearance (US Citizenship required) - Bachelors degree in computer science or a related discipline along with a minimum of 4 years of relevant experience - Proficient in programming languages such as C++, Python, or Qt,

Very fast-moving role- Only 1 Round Interview Note: I have 100% remote roles aswell for Lead level candidates. (Min 10+ years required) Note: Need Only US Citizen, Green Card, EAD-GC, J2 EAD, H4 EAD, L2 EAD, and TN Visa. Location: Reston, VA/ Dallas, TX (Onsite 2 days in Week) Duration: Long term Co

All positions are fully onsite! Clearance: AN ACTIVE TS/SCI with CI scope polygraph is required before hire -candidate needs front end development experience, experience with Java and AWS experience. Who We Seek: Passion Seekers.You genuinely care about the work that you do and its impact on the com

CACi

Job Title: Full Stack Java Developer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local The Opportunity: CACI is currently looking for a Full Stack Developer with ag

SAIC

SAIC is currently seeking a motivated, career and customer-oriented Java/JEE Developer (Journeyman) to join our team to begin an exciting and challenging career in Ashburn, VA. Job Responsibilities * Design, implement, and unit test REST microservices with Java, Spring, and JUnit. * Develop web appl

CDIT

Ashburn, United States | Posted on 10/30/2025 Great opportunity for a Java Developer to join our Agile Scrum team, providing software development and maintenance for the delivery of releasable software in short sprint cycles. Responsible for activities associated with delivery of software solutions

Vinsys Information Technology

An information technology services firm seeks a Senior Java Developer to join their team. The role involves designing, developing, and managing Java-based applications primarily on a remote basis, with occasional onsite requirements in Rockville, MD. Candidates should have extensive experience with

Ignite IT

Java/Angular Full Stack Developer - US CITIZENSHIP REQUIRED 2 days ago Be among the first 25 applicants Ready to Ignite your career and work alongside some of the most innovative and brightest professionals in innovative technology? Join us and unleash your potential working in an Agile environment

Lead Full Stack Java Developer – Active Clearance | Hybrid Ashburn, United States | Posted on 06/11/2025 Clearance Requirement Active DoD TS or DHS Full BI IAT/IAM Requirement N/A Job Description We are seeking a highly experienced Lead Full Stack Java Developer to serve as a technical team lead for

SME Full Stack Developer - Java/Python , Clearance Required At SourceFly, we pair mission-driven innovation with a people-first culture. Headquartered in Columbia, MD, we provide cloud engineering, data and application services, cybersecurity, automation, workforce development, and strategic communi

A technology consulting firm located in Ashburn, VA is seeking a Java Full Stack Developer to join their dynamic team. In this role, you'll design, develop, and implement software solutions while utilizing your skills in Java and Angular. Ideal candidates should have at least 5 years of experience,

Job ID: 2610826 Location: Ashburn, VA, US Date Posted: 2026-03-31 Category: Software Subcategory: SW Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: ORA_ON_SITE Description SAIC is

Peraton

A leading national security company is seeking a Full Stack Developer with strong experience in Java, Spring Boot, and Angular. You will join a dedicated team serving U.S. Customs and Border Protection, delivering software solutions while adhering to Agile practices. The ideal candidate will have a

Developer specialized in migrating Java/J2EE applications to the cloud. You will take ownership for modernizing Java/J2EE applications and migrating them to AWS by re-architecting them to leverage cloud-native features and improve scalability, performance, and agility, while minimizing disruption to