Java Developer Freelance jobs in Tysons

Job Title: Software developer/ Application developer Location : Washington, DC (Onsite) Clearance : Active Top secret / TS/SCI Status : Full Time Yakshna Solutions, Inc., (YSI) is a CMMI Level 3 assessed, ISO 9001, 20000:1, 27001 certified, woman-owned small business enterprises, headquartered in He

Dice is the leading career destination for tech experts at every stage of their careers. Our client, Apex Systems, is seeking the following. Apply via Dice today! Job#: 3029075 Job Description: We are hiring Developer-Java/J2EE Specialist! Role: Developer-Java/J2EE Specialist Supporting: Large Finan

Client Technologies Technician - Advanced Remote: Clemson, SC About the Job Duration: Long term Contract Position Location: Remote: Clemson, SC Pay rate: Hourly Job ID: 10706 Overview: Client is seeking Lead the design and delivery of a law enforcement switch project supporting secure, real-time dat

Role: Spark Developer with Java Location: McLean, VA (Onsite) Employment Type: Contract (C2C) Experience: 8+ Years Job Overview We are seeking a highly skilled Spark Developer with a strong Java background to join our team supporting a leading client. The ideal candidate will have hands-on experienc

Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS200, T2, Band 5 Job-Specific Essential Duties and Responsibilities: Due to contract requirements candidates must be U.S. Citizens. Applicants who are Green Card holders or who require sponsorship cannot be considered. Abi

Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS199, T1, Band 4 Job-Specific Essential Duties and Responsibilities: Build and maintain simple UI components using JavaScript frameworks. Write and maintain server-side logic and handle HTTP requests. Perform simple CRUD o

Lumen Solutions Group Inc.

Company Description Lumen Solutions Group Inc. is a technology consulting Services company based in Florida. We provide a wide array of experienced business and IT professionals supporting clients from solution design to implementation and support. We specialize in professional IT consulting service

Axiom Technologies

Requirements Must have: - Active TS/SCI Security Clearance required - Proficiency in Golang with experience in backend and distributed system development - Familiarity with message queues and data streaming technologies such as Kafka, NATS, or RabbitMQ - Strong understanding of database systems (SQL

DUTIES AND RESPONSIBILITES: • Responsible for elicitation, analysis, and documentation of business requirements. • Research and exploration of user requirements, costs, and benefits in support of documentation required for the demand management process. • Responsible for analyzing the business needs

Your Impact Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats. Job Description \*\*This role is onsite 1 day a week in Ashburn, VA. Deliver simple solutions to complex problems as a So

We are seeking a Junior Software Engineer (Web Developer/Programmer) to support the design, development, and maintenance of high-quality websites and web applications. This role works closely with designers, developers, and content teams to deliver accessible, usable, and standards-compliant web sol

Cytel

Sponsor-dedicated: Working fully embedded within one of our pharmaceutical clients, with the support of Cytel right behind you, you'll be at the heart of our client's innovation. As a Principal Statistical Programmer you will be dedicated to one of our global pharmaceutical clients; a company that i

Fairfax County

$7,604 - $12,674 /year

JOB Join a high-performing, centralized IT team supporting critical applications within the Health and Human Services (HHS) program area—comprised of six independent County agencies and a broad network of community partners dedicated to enhancing the well-being of Fairfax County residents and visito

Synthesis Systems is looking for a Java Developer for a contract opportunity in Washington, DC. The position is an on-site contract. Position description: The selected candidate will be responsible for full life-cycle software development of enterprise Java application as well as research and develo

Job Summary We are seeking a dynamic and detail-oriented Data Standards Programmer to join our innovative data management team. In this role, you will be at the forefront of establishing, maintaining, and enhancing data standards across complex data environments. Your expertise will drive the develo

Job Description: Job Title – Java / Python Developer Location – Washington, DC (Hybrid) Duration – 12 Months Direct client It’s a hybrid position, not 100% remote Job Overview Java /Python Developer will help support the API Platform implementation. Senior Full-Stack Software Engineer responsible fo

RedLine is looking for a candidate to support the Environmental Modeling Center (EMC) of the National Centers for Environmental Prediction (NCEP) in carrying out research, development, and operational transition of ingest, processing, quality control, and handling of environmental observations. The

System Software Programmer - Project Lead Hybrid: Columbia, SC About the Job Duration: Long term Contract Position Location: Hybrid: Columbia, SC Pay rate: Hourly Job ID: 10685 Overview: Client is seeking a highly motivated individual who has the skills and experience of designing and developing ent

DESCRIPTION Join the Amazon Web Services EC2 Instance Connectivity development team responsible for connectivity services to AWS EC2 instances. This team owns services that enhance customers' observability and troubleshooting by providing a suite of tools to connect to their EC2 instances that adher

This position is a 1.0 FTE located at Claremont Immersion School. All Teachers/Instructional Staff hired after January 15th are considered term employees. This position is a term position that is effective for FY26 through June 18, 2026 only. You would need to re-apply for a position for FY27. Respo