Backend Developer jobs in Warrenton, VA

Reston, Virginia

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Today

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, changemakers, and go-getters-where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world. This position requires a

Full-time

Senior Backend Developer, Data Platform (TS/SCI with CI Poly)

Reston, Virginia

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Today

Full-time

Java Backend Developer - W2

Remote

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Today

Job SummaryWe are looking for an experienced Java Backend Developer with strong expertise in designing, developing, and maintaining scalable, secure, and high-performance backend applications. The ideal candidate will have hands-on experience with Java, Spring Boot, REST APIs, microservices, databases, and cloud technologies. Exposure to Artificial Intelligence (AI), Generative AI, and AI-assisted software development tools is a plus. Candidates with an interest in integrating AI capabilities in

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Contract

60+

Back End Developer

Remote or Baytown, Texas

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Today

Description We are looking for a Back End Developer to join a financial services team in Baytown, Texas. In this role, you will help build and support reliable web-based solutions that contribute to secure, efficient business operations. The position suits someone who can collaborate across technical teams while delivering clean, maintainable code in a fast-moving environment. Responsibilities: Design, build, and maintain server-side applications that support core business functions within a fi

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Full-time

USD 120,000.00 - 140,000.00 per year

Lead Java Backend Developer

Remote

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Today

LeadJavaDeveloper Location: 100% Remote Position Summary We are seeking a highly skilledSeniorJavaDeveloperwith strong expertise in backenddevelopment, Spring Boot microservices architecture, AWS cloud technologies, and Infrastructure as Code using Terraform. The ideal candidate will have extensive experience designing and developing scalable enterprise applications, RESTful APIs, cloud-native services, and distributed systems in Agile delivery environments. This role requires strong hands-on c

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Full-time

Depends on Experience

Java Full Stack Developer - AWS Cloud Migration

Hybrid in Reston, Virginia

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Today

Company Description Lumen SolutionsGroupInc. is a technology consulting Services Company based inFlorida. Weprovidea wide array of experienced business and IT professionals supporting clients from solution design to implementation and support.We specialize in professional IT consulting services, IT Staffing, Business/IT Strategy, Business Process Blueprints, Enterprise Architecture, EnterpriseTransformation. Job Title:Java Full Stack Developer - AWS Cloud Migration Location: Reston, VA Hybrid

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Contract

Depends on Experience

Senior Backend Developer (AI, Python)- Remote - Contract

Remote

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5d ago

Title : Senior Backend Developer (AI, Python) Remote Job Type: Contract Project description We are seeking a hands-on GenAI Engineer to join a team developing production-grade, AI-powered solutions for a major US insurance provider. Designed and developed an enterprise-grade Generative AI platform using Python, FastAPI, and FastMCP to automate recruitment workflows and provide intelligent candidate insights. Built scalable, production-ready APIs that integrated with OpenAI GPT and Anthro

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Contract, Third Party

$60 - $65

Java Backend Developer (Kafka, Cassandra Expert) || Remote

Remote

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24d ago

Job Role- Java Backend Developer (Kafka, Cassandra Expert) Location- Remote Hiring Mode- Full-time Job Description-10 years of experience in Java, core java and advance java concepts and technologies. Software development experience. Hands on experience in Kafka Connect and Kafka messaging event streams. Must have experience in Java (Spring Boot), Microservices. Experience in Writing Junit Test cases Experience in Cloud platform like PCF, AWS. No SQL DB for eg: Cassandra. MongoDB and a

Full-time, Third Party

$120 - $130

Java Backend Developer

Remote

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6d ago

Hello All, Greetings from Rootshell Inc. Rootshell Enterprise Technologies Inc. is a recognized provider of professional IT Consulting services in the US. We are actively seeking Java Backend Developerfor one of our client, Please share your resume with current location & full contact info Role:Java Backend Developer Location:Remote Job Summary Job Summary We are seeking a skilled Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. T

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Full-time, Third Party

Depends on Experience

Junior Java Backend Developer (1-6 Years)

Remote

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6d ago

Job Description: Key Responsibilities Develop and maintain backend services and RESTful APIs using Java.Write clean, scalable, and efficient code following coding standards.Participate in application design, development, testing, and deployment.Debug, troubleshoot, and resolve application issues.Work with databases to design queries, procedures, and data models.Assist in code reviews and implement feedback from senior developers.Create and maintain technical documentation.Support application per

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Full-time

Depends on Experience

Senior Back-End Developer

Chantilly, Virginia

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Today

Overview We are seeking a Java Backend Software Engineer to join a team of developers and cloud engineers responsible for enhancing legacy Public Key Infrastructure (PKI) systems and developing new solutions to support evolving mission requirements. The successful candidate will develop scalable backend applications, integrate systems through APIs, and support the design and implementation of PKI solutions across multiple networks. The team operates within an Agile Scrum framework, delivering

Full-time

Web Back End Developer

Remote or Alexandria, Virginia

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Today

About NFF Since 1996, Networking For Future, Inc. (NFF) has been engineering the backbone of mission-critical systems for government and enterprise clients. With headquarters in Washington, DC, we provide expert technology consulting and design-build solutions that solve complex challenges and deliver measurable real-world results. Our expertise includes solutions for Artificial Intelligence Enablement, Data Center & Cloud, Intelligent Networks, Secure, Connected IoT Technologies, Professional

Full-time

USD 130,000.00 - 145,000.00 per year

Back-End Software Developer

Chantilly, Virginia

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Today

Overview VTG is seeking a talented and experienced Back-End Software Developer to join our dynamic and innovative team in Chantilly, VA or Herndon, VA. As a Back-End Software Developer, you will play a key role in designing, developing, and maintaining high-quality software applications. You will work closely with cross-functional teams to understand requirements, translate them into technical solutions, and deliver innovative software products that meet customer needs. What will you do? Desin

Full-time

Senior Backend Developer (AI, Python)

Remote

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Today

Project description We are seeking a hands-on GenAI Engineer to join a team developing production-grade, AI-powered solutions for a major US insurance provider. Designed and developed an enterprise-grade Generative AI platform using Python, FastAPI, and FastMCP to automate recruitment workflows and provide intelligent candidate insights. Built scalable, production-ready APIs that integrated with OpenAI GPT and Anthropic Claude models for candidate screening, resume analysis, job matching, and a

Full-time

Java Backend Developer

Remote

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Today

We are looking for strong Java back-end developers as we move forward in the project in JAVA tech stack involving Restful Webservices and Soap Webservices. The project revolves around a lot of data coming from various sources, so strong SQL knowledge and interpretation of complex SQL queries is a must. Mandatory skills: Must have strong, hands on experience on: Strong hands-on understanding of Java 8 Hands-on experience on micro-services and webservices development (both SOAP and REST) Hands on

Full-time

USD 55.00 - 65.00 per hour

Scala Backend Developer

Remote

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: BI Full 6C (T4) Job Family: Software Engineering Job Qualifications: Skills: Back-End Development, Java (Programming Language), Scala (Programming Language) Certifications: None Experience: 10 + years of related experience ship Required: No Job Description: Transform technology into opportunity as a Scala Back-End Developer at GDIT. Shape wha

Full-time

USD 120,700.00 - 163,300.00 per year

Backend (.NET) Developer

Remote

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20d ago

Backend(.NET)Developer Remote AsaBackendDeveloper,youwillhaveadeepunderstandingofbackendtechnologies,particularly.NETandSQLServer,andhaveapassionforcreatingefficient,scalable,andsecureserver-sideapplications. Responsibilities: Design,develop,andmaintainrobustRESTfulAPIsusing.NETCore/.NET5+ Collaboratewithfrontenddeveloperstoensureseamlessintegrationofbackendservices Designandimplementefficient,scalabledatabasesolutionsusingSQLDatabases Mentorjuniordevelopersandconductcodereviews Optimizeappli

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Full-time

Depends on Experience

Backend Software Developer

Remote

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Today

Description & Requirements The Software Developer (Backend) provides subject matter proficiency for our USAF mission. This role is responsible for providing analytical skills to support process improvement, specialized studies, and definition of requirements. Shall perform engineering tasks for back-end design and development efforts including, but not limited to, developing back-end architectures to support current and new system capabilities and integrations, RESTful API development and modifi

Full-time

USD 120,000.00 per year

Senior Backend .NET Developer

Remote

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Today

Job Title: Senior Backend .NET Developer Job Location: Remote Job Type: Full Time Job Description: Develop backend services and REST APIs using C# and .NET. Build business and domain logic using SOLID and Clean Architecture principles. Work with Entity Framework Core, LINQ, SQL Server, and Azure SQL. Design integrations with enterprise and third-party systems. Implement asynchronous processing, background services, and messaging. Work with Azure Service Bus and other messaging technologies. I

Full-time

Software Engineer II, Backend (Batch Developer Experience)

Remote

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Today

At Affirm, we exist for the moments that matter-giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Engineering team builds systems that power Affirm's mission. We take pride in our craft, building reliable, performant, and scalable solutions that touch every part of the business. Whether we're enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing s

Full-time

USD 165,000.00 - 225,000.00 per year

Backend Developer jobs in Warrenton, VA, USA