Java API Developer
NT Concepts
We are seeking a Mid-level API Java Developer to join our team. Working at NT Concepts means you are part of an innovative, agile company dedicated to solving the most critical challenges in National Security. Mission Focus As a member of our solutions delivery team, you will work on programs advancing critical government systems. NT Concepts seeks an experienced API Java/Python Developer for data transformation opportunities within our Intel Community. Clearance Active TS/SCI with CI Poly clearance required. Location & Flexibility Local to the DC Metro Area, Remote Flexible. Responsibilities As a Mid-Level Java Developer , you will design, develop, and maintain software applications with a focus on data integration and backend services. Software Development: Create maintainable, adaptable, and scalable code using best practices (e.g., software reuse, refactoring, continuous integration, test automation, TDD, static code analysis, and peer/code review). Data Integration & ETL: Provide Java coding to support extract, transform, and load (ETL) processes. Create and maintain scripts, stored procedures, and logic to create, update, and delete data. API Development: Develop RESTful APIs and microservices to enable secure and efficient system communication and synchronize business data between multiple endpoints. Data Ingest: Configure and manage data ingest components in a cloud platform, such as Apache Kafka, NiFi, FTP, or an API gateway. Database Management: Design and implement schema changes, manage indexes, and alter data objects to optimize performance. Utilize SQL (SAP/Sybase, PostgreSQL, MySQL) and NoSQL databases. Stakeholder Collaboration: Communicate with data owners and conduct research/analysis on data sets to prepare ingest strategies based on data structure, size, frequency, and other sharing requirements. Team Collaboration: Work closely with frontend developers, product managers, and QA teams in an Agile environment to define requirements and ensure seamless integration and functionality. Qualifications Clearance: Active TS/SCI with CI Poly clearance required. Technical Skills: Proficiency in Java, with experience in frameworks such as Spring Boot. Experience with JavaScript. Strong understanding of API architectural styles (REST, GraphQL, SOAP) and tools (Postman, Swagger UI). Experience with data integration, including ETL processes and data ingest tools (Apache Kafka, NiFi). Experience with SQL (SAP/Sybase) and NoSQL databases. Familiarity with version control systems (Git). Knowledge of Agile/Scrum development methodologies and software development best practices (TDD, CI/CD). Experience with cloud platforms (AWS, Azure, GCP). Familiarity with containerization technologies (Docker, Kubernetes). Physical Requirements Prolonged periods of sitting at a desk and working on a computer. Must be able to lift 10-15 pounds at times. About NT Concepts Founded in 1998 and headquartered in the Washington DC Metro area, NT Concepts is a private, mid-tier company with clients spanning the Intelligence and Defense communities. We deliver end‑to‑end data and technology solutions that advance the modernization, transformation, and automation of the national security mission. Our employees are the core of NT Concepts. We foster a collaborative environment that encourages technical growth, leadership, and creative problem‑solving. Competitive benefits and opportunities for skill development are available. We are an equal opportunity employer and do not discriminate on the basis of any protected status. We encourage all qualified candidates to apply. #J-18808-Ljbffr NT Concepts
$79 per hour
Job Title: Java Developer - Night Shift Location: Reston, VA Type: Contract to Hire Compensation: $79/HR Work Model: Hybrid - onsite and... ...are looking for a Senior Software Engineer with strong Java, API, and production support experience to build, maintain, and support...SuggestedFull timeContract workLocal areaRemote workNight shift- ...Job Description - Java Developer -Need Local and Genuine Candidates with Driver's License. Job location: Bellevue, WA. onsite job -... ...technical initiatives and work with teams to build and deliver the APIs. • Be able to take direction from tech leads and drive...SuggestedLocal area
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- ...Java Developer with 2–3 years of experience in designing, developing, testing, and maintaining enterprise web applications using Java, J2EE... ...Spring Data JPA, and Hibernate. Experienced in developing RESTful APIs and microservices, implementing business logic, and...Suggested
- ...Required Skills Experience with full-stack development/design using Java/JEE or other modern programming language Experience with... ...integration solutions with Microservices, RESTful Web Services and Web APIs Ability to work in an Agile environment Knowledge or...Suggested
- ...Senior Full Stack Developer With AWS Your future duties and responsibilities We are looking... ...experience AWS Full Stack Developer - Java 11/17, Angular11, GraphQL, Microservices... ...experience using Java, Node.js, Lambda/API Gateway services and scripting. Experience...3 days per week
- ...Skills Required 8+ years experience. Must be a full stack developer with JEE experience. Must have Java development experience with ability to develop unit/... ...and Bootstrap. Good to have experience working with API Management Tools. Good to have experience working with...Contract work
- ...the Lead Project Manager, the Full Stack Developer will help in the development of software... ...solution implementation Experience with Java and JEE technologies with detailed understanding... ...development of Microservices and RESTful APIs in an AWS and Docker platform Experience...Work from homeFlexible hours
$135.15k - $182.85k
...future with us. The Boeing Company is currently seeking Java Software Engineers – Developer (Experienced and Senior) to support our Advanced Ground... ...Boot, NoSQL Databases (specifically MongoDB), REST API integration, and Kubernetes with Helm ~ Experience implementing...Permanent employmentWork experience placementRelocationVisa sponsorshipWork visaFlexible hoursShift workDay shift- ...Responsibilities Our client is seeking an experienced, Senior Full Stack Java Developer to support a customer on a long term program. The Full Stack... ...Angular (4 ,5, 6 or 7) Spring SQL Java JPA (JAVA Persistence API) / Spring Data JPA Requirements Required Skills: Solid resume...
- ...Job Title Java for micro experiences, building and deploying API, full top to bottom testing Spring Boot AWS Rest API Angular preferred Required Skills : Basic Qualification : Additional Skills : Background Check :YesCandidate must be your W2 Employee...
- ...development, cloud development, domain driven design, microservices & APIs, containerization, and development of computationally intensive... ...firm’s roadmap programs. Qualifications Strong experience in Java 8, Spring Boot, Microservices, Kafka, Hibernate or JPA and REST...Local area
- ...learn from and share knowledge with other developers, architects, and our clients. Design,... ...Solutions: Lead the design and architecture of Java-based solutions tailored to meet client-... ...architecture solution Solutions include API-driven clients, microservice...Work at officeRemote workVisa sponsorshipWork visaFlexible hours
$220k - $250k
...Summary We are seeking a Principal Engineer to lead Babel Street's API and MCP platform strategy and delivery as we evolve toward an... ...delivering API‑first platform capabilities that enable both developers and AI agents to interact with Babel Street's services. You will...Work at officeRemote workFlexible hours- ...Overview: The Java Developer designs, develops, and maintains enterprise-grade applications using Java and related technologies. This... ...maintain backend services using Java, Spring Boot, and RESTful APIs Integrate applications with databases and external systems...
- ...Title: Java Developer Job Type: Contract Duration: 12 months Location: 100% Remote Client: Birlasoft/ Conduent Description: • Designs, develops documents, tests and debugs new and existing software systems and/or applications. • Participates...Contract workWork experience placementRemote work
- ...highly motivated candidate to join our talented Team. Job Title: Java Full Stack Developer. Location: McLean, VA. About the Project We are seeking a... ...login or enrollment. The contractor will primarily work on API enhancements and application maintenance, with opportunities...For contractors
- ...Loan App- AWS/Java Developer Location: Mclean, VA 8+ years of experience in solution, design and development of applications using J2... ...Spark is preferred 3+ years of experience developing RESTful APIs 1+ years of experience in onboarding APIs in APIGEE 3+ years...
- ...Job ID : 96982-1 Job Title : Java Developer Location : McLean, VA Duration : 6 months + possible extension Rate Range: $35 - $... ...maintaining serverless architectures using AWS services such as API Gateway, CloudFormation, and CloudWatch. ~ Experience in...Contract workWork experience placementImmediate start
- ...Only On W2 Java Developer – 10 New Positions Reston VA or Plano TX Duration: 1 year, starting beginning of January In Person Interview is a must, person must be solid on Java + AWAS Process: Step 1: Candidate Must be screened by our technical screener who is...
- ...Night Shift Java Developer Hybrid, 2-3 weeks onsite during training period in DC or Reston, VA, 2nd round interview onsite Shift: Rotating weekend shifts Prefer USC/GC, can consider H1B 6-month contract, potential conversion to FTE...Contract workH1bShift workNight shiftRotating shift
- ...Overview We are looking for an experienced Java Developer to join our technology team supporting a leading mortgage solutions provider. The... ...Responsibilities Design, develop, and maintain scalable backend services and APIs using Java, Spring, Spring Boot, and Microservices...
- ...systems for government and commercial clients. We specialize in developing J2EE, .NET, SOA, Portals, and database-driven applications. Our... ...agencies. Job Description Synthesis Systems is looking for a Java Developer for a long-term contract in Herndon, VA. Must be a US...Long term contractContract work
$51k - $82k
...Java Software Engineer Job Locations US Requisition ID 2026-1... ...business applications. This role is ideal for a developer with foundational J2EE and AI knowledge... ...guidance. Participate in implementing APIs, integrations, and backend services....Contract workRemote workShift work- ...Java Developer IRI is an MBE/SBE certified organization specializing in Superior Staffing Services. We provide services to major organizations around the nation. IRI has an excellent track record of providing quality resources at competitive prices MBE Certifications...
- ...Core Java Developer HSS SOFT is an Equal Employment Opportunity Employer Greetings, My name is Raju. We do have a job opening for the position Core Java developer @ VA. Position with one of our clients. Please go through the job description mentioned below and...Full timeImmediate start
$85 - $90 per hour
...Work sponsorship is available for this position. Job Title Java Full Stack Developer with React JS Locations Mclean, VA (5 days a week) Interview... ...across different layers of the stack (data, services, APIs, and infrastructure) to deliver end-to-end solutions. Partner...Hourly payLocal areaVisa sponsorship- ...week) (Only local) Job Type Contract Experience 12+ years required Job Function Information Technology Industries IT Services and IT Consulting Technical Skills Java Spring Boot Microservices Angular AWS GHCP (GitHub Copilot) #J-18808-Ljbffr Nityo InfotechContract workLocal area
- ...Overview Java Restful API Developer Location: Mclean, VA Length: 2 years Accepting relo candidates?: YES PHONE HIRE Visa Copy needed - Yes Requirements 5+ years cumulative software engineering experience required, 10+ years preferred. At least 3 years of experience in...
- ...Backend Developer Key Responsibilities: Design and develop backend services using... ...GraphQL, and common backend frameworks such as Java Spring Boot, Node.js, or Scala. Build... ...tuning. Build and consume RESTful APIs; optimize service performance and scalability...
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