Average salary: $101,182 /yearly
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$180k
...seeking an SME Systems Engineer to provide technical leadership for API Gateway technologies, cloud architecture, and enterprise... ...necessary to allow you the room to pursue everything you want to develop in your personal life. We offer a generous Paid Time Off benefit...SuggestedFlexible hours- ...build scalable, high-impact systems supporting global border security and threat detection. In this role, you’ll develop C#/.NET backend services, APIs, and microservices that power real-time data processing and analytics platforms. You’ll work closely with senior...SuggestedFull timeContract workRemote work
Securiport
Herndon, VA1 day ago - ...global border security, threat detection, and analytics systems . In this role, you’ll develop responsive front-end applications and integrate with C#/.NET microservices and APIs powering real-time data platforms. You’ll work alongside senior engineers, DevOps, and...SuggestedFull timeContract workRemote work
Securiport
Reston, VA1 day ago - ...TS/SCI w POLY REQUIRED) Software Tester / QA Engineer (Web & API Testing) We are seeking a detail-oriented and technically... ...Postman and Swagger to test, document, and validate APIs Develop and maintain automated test scripts using frameworks such as Cypress...SuggestedFull time
Falls Technology
Chantilly, Loudoun County, VA1 day ago - ...Server, with Kafka, RabbitMQ, or IMB MQ as a plus. You will work on APIs, microservices, and distributed systems, contributing to a... ...performance software ecosystem. You will collaborate with senior developers, DevOps engineers, and data experts in an Agile team...SuggestedFull timeContract workRemote work
Securiport
Reston, VA1 day ago - ...seeks a motivated, career and customer oriented SME Full Stack Developer - Python \ to join our team in Ashburn, VA. This is currently a... ...deployment, and maintenance. \\ Develop and consume RESTful APIs and ensure seamless integration between front -endand backend systems...SuggestedFull timeWork at officeRemote work2 days per week1 day per week
Sourcefly
Ashburn, VA1 day ago - ...’re seeking a highly capable and forward -thinking Full -Stack Developer to join a high -impact team supporting mission -critical systems... ...AI output \\ Build secure, maintainable RESTful and GraphQL APIs \\ Collaborate with designers, PMs, and data scientists to turn...SuggestedFull timeImmediate startFlexible hours
Novul Solutions
Ashburn, VA1 day ago $105k - $125k
...has lived in the US for the more than 3 years. The Software Developer will build and support software products used by the Department... ...building.net Framework, and ASP.NET Core web applications or APIs. ~1+ years of hands-on experience with web UI frameworks like...SuggestedPermanent employmentFull timeTemporary workWork experience placementFlexible hoursStrongbridge
Sterling, VA1 day ago- ...API Developer LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a talented API Developer to join our team and play a key role in designing, building, and...SuggestedTemporary workFor contractorsImmediate startFlexible hours
Cymertek
Chantilly, Loudoun County, VA3 days ago - ...API Developer We are seeking a talented API Developer to join our team and play a key role in designing, building, and maintaining robust APIs that power our applications and services. In this position, you will collaborate with cross-functional teams to create scalable...SuggestedTemporary workFor contractorsImmediate startFlexible hours
Cymertek
McLean, VA3 days ago - ...creating Angular components, services, good understanding of state management and UI performance Experience developing and maintaining Python applications, APIs, automation scripts, or backend services in an enterprise environment, including familiarity with common Python...SuggestedLocal areaRemote work2 days per week3 days per week
Peraton
Ashburn, VA3 days ago - ...excellent written, verbal and presentation skills Ability to manage multiple priorities with tight deadlines Expertise with designing XML APIs, Web Services, Service Oriented Architecture, REST Expertise with mocking frameworks, automated build & unit testing, Team...Suggested
Jobsbridge
Sterling, VA1 day ago - ...more… Job Description Xenith Solutions is seeking a Full Stack Developer with agile methodology experience to join our team in support of... ...transforming mockups into fully functional user interfaces integrated with API‑enabled microservice built on Springboot/Java based backend...SuggestedContract workFor contractorsLocal area
Xenith Solutions
Ashburn, VA4 days ago $197.3k - $225.1k
...Lead Software Engineer (AWS, Python, Java, React, Generative AI APIs) Do you love building and pioneering in the technology... ...Lead a portfolio of diverse technology projects and a team of developers with deep experience in distributed microservices, and full stack...SuggestedFull timePart timeInternshipH1bLocal area$90k - $150k
...backend development over time. This is an ideal role for a Java developer who wants more ownership, broader exposure, and a pathway into... ...applications. Experience designing or consuming RESTful APIs Interest in Kotlin or modern JVM language evolution...SuggestedFull timeWork experience placementWork at officeToyon Research Corporation
Ashburn, VA1 day ago- ...is partnering with Babel Street to find a Principal Engineer, API & MCP Platform . Please see details below: About the Role... ...and delivering API-first platform capabilities that enable both developers and AI agents to interact with Babel Street’s services. You will...Work at officeRemote work
$197.3k - $225.1k
...Software Engineer, Back End (Java/ Python/ Go Backend, REST/ GraphQL APIs, WAF, Protocol, AWS) Do you love building and pioneering at... ...pipelines that defend Capital One's applications at scale Develop and maintain Python-based automation and tooling that manages...Full timePart timeInternshipH1bLocal area- ...you matter. Your Impact We are seeking an innovative C++ Developer to join our team focused on enhancing computer vision and camera... ...robust, field-ready solutions. Process video streams and API data in resource constrained environments. Contribute to the...Work at officeRemote workMonday to Friday
Axon
Sterling, VA4 days ago - ...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 across...Local area
Kasmo Global
Sterling, VA5 days ago - ...Description Leidos is seeking Principal Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting... ...such as Junit and Mockito. Significant experience with RESTful API, JSON, XML, XSD. Significant experience with Spring Framework,...Remote work
Leidos
Ashburn, VA3 days ago $114.7k - $117.48k
...performance across end-to-end workflows. Duties: Design, develop, and maintain automated test frameworks for a distributed integration... ...Experience building automation frameworks for backend services, APIs, and distributed systems ~ Experience testing APIs and TCP...Full timeLocal area2 days per weekDobbs Defense Solutions
Ashburn, VA1 day ago$122k - $253k
...our team to solve real-time cyber challenges, working on site with our end users in their spaces. Applicants will join a team of developers building high impact native applications for mobile devices, with continuous and meaningful feedback from users. Applicants are expected...RelocationRelocation packageNightwing
Sterling, VA1 day ago- ...Full-Stack Developer (Hybrid – Ashburn, VA) This position is a hybrid role where the developer will be required to go onsite to client... ...using modern development practices. Develop and consume RESTful APIs. Maintain code quality through unit testing, automation, and peer...Local areaRemote workFlexible hours2 days per week
NiyamIT Inc.
Ashburn, VA3 days ago - ...candidate is a self-directed engineer with demonstrated experience developing and supporting geospatial, imagery, AI/ML, or analytic... ...Responsibilities Develop and integrate backend services, APIs, data connectors, plugins, and platform components that support...Full timeRemote work
Vantor
McLean, VA1 hour ago - ....Net with Azure exp with good companies. The Lead Software Developer will: Oversee and direct technical staff to develop code and... ...DevOps, and Azure PaaS Implement core REST + JSON based APIs. Accountable for escalating issues and risks through the Delivery...
Kasmo Global
Sterling, VA5 days ago $75k - $120k
All Jobs > Full Stack Developer - (BEAGLE) Le’fant is a rapidly growing CVE Certified, Service Disabled Veteran Owned Small Business specializing... ...mockups into fully functional user interfaces integrated with API‑enabled microservices built on Spring‑boot/Java or C# (.NET Core...Contract workTemporary workWork experience placementRemote work1 day per week$122k - $253k
Software Developer - UTS Platform and Data Analytics Team (UPDATe) Nightwing is seeking a Software Developer to support biographic and biometric... ..., SpringBoot, or Spring Framework. • Build and consume RESTful APIs. • Support application deployments and operations within an AWS...$152.2k - $243.7k
...on full-stack engineer and a team leader capable of designing, developing, and deploying GenAI-powered applications. You will mentor an... ...component frameworks, REST/GraphQL integration Build secure APIs, microservices, event-driven components, and backend...Full timeWork experience placementWork at officeLocal areaVisa
Ashburn, VA1 day ago$131.3k - $237.35k
Description The Homeland Sector within Leidos is seeking a Full Stack Developer with strong systems, software, cloud, and agile experience to... ...principles 2+ years experience with Microservices/RESTful APIs Expertise with Axios framework to work with rest services....Work experience placement$87.1k - $157.45k
...Description Leidos is seeking Lead Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the... ...tools such as Junit and Mockito Experience with RESTful API, JSON, XML, XSD Experience with Spring Framework, Spring Security...Local areaImmediate startRemote workLeidos
Ashburn, VA5 days ago
