Backend Development jobs in Ashburn, VA

Reston, Virginia

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19d ago

We are seeking a hands-on Full Stack Engineer to join a team of 7 experienced full stack engineers, supporting both new development and ongoing maintenance of a critical, external facing training application used by lenders and trainers within the capital markets space. This role is heavily development focused and spans frontend UI, backend services, test automation, and AWS cloud infrastructure, with a strong emphasis on quality, scalability, and production stability. Key Responsibilities: Deve

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Full-time

$80,000 - $100,000

Java Full Stack Developer

Reston, Virginia

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21d ago

Required Skills & Experience: Proven experience as a Full Stack Java Developer Strong hands-on experience with: o Java (backend development) o Angular (frontend/UI development) o AWS (cloud services and environments) Experience working on external facing applications Solid background in test automation and validating user stories across UI and backend Experience using GitHub for source control and collaboration Ability to work effectively in a team-based development environment Comfortable suppo

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Full-time

$100,000 - $120,000

Software Development Engineer II - Back-End (Mission-Focused | ArcGIS)

Vienna, Virginia

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Today

Overview Join Esri`s team and build backend systems that power mission critical geospatial applications supporting Defense and Intelligence operations. As a Software Development Engineer II, you will design and develop scalable backend services and APIs that enable complex data processing, system integration, and real time analytics. Your work will directly support high impact operational systems, helping organizations transform large scale data into actionable insights. You will collaborate w

Full-time

USD 97,240.00 - 162,240.00 per year

Full Stack Developer

Chantilly, Virginia

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Today

Full Stack Developer Location: Chantilly, VA Must have an active TS/SCI FS Poly Looking for a full stack developer supporting a backend development team focused on middleware and backend services. Requirements Required Skills: Intermediate to Expert level experience in Solr or Elastic Search (minimum 3 years) a. Performing schema updates b. Possessing significant knowledge & experience in submitting Lucene queries c. Possessing significant knowledge & experience on how Solr/Elastic shar

Full-time

Software Engineer Level 4

Reston, Virginia

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Today

Requisition ID: 3832Standard Title: Software EngineerRequired Security Clearance: Top Secret/SCI with CI PolygraphLocation: Reston, VAWork Type: On-SiteShift: FirstReferral Eligibility: EligibleU.S. Citizenship Required? Yes Position Summary Base-2 Solutions is seeking a Software Engineer Level 4 to develop, maintain, and enhance complex and diverse software systems supporting mission-focused environments. This role is centered on backend development, data engineering, and API development, with

Full-time

Software Engineer Level 5

Reston, Virginia

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Today

Requisition ID: 3835Standard Title: Principal Software EngineerRequired Security Clearance: Top Secret/SCI with CI PolygraphLocation: Reston, VAWork Type: On-SiteShift: FirstReferral Eligibility: EligibleU.S. Citizenship Required? Yes Position Summary Base-2 Solutions is seeking a Software Engineer Level 5 to develop, maintain, and enhance complex and diverse software systems supporting mission-focused environments. This role is centered on backend development, data engineering, and API develop

Full-time

Founding Engineer / Forward Deployed / Herndon, VA (DC area)

Manassas Park, Virginia

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Today

An early-stage AI company in Herndon, VA is hiring a Founding Forward Deployed Software Engineer for a full-time position. This is a hybrid opportunity requiring three days per week onsite. You'll work across backend engineering, cloud infrastructure, and customer deployments using Go, Python, Kubernetes, AWS, and PostgreSQL. This role sits directly between the engineering team and the customers using the platform. Rather than simply handing requirements to another team, you'll work with custome

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Full-time

$180000 - $200000

Backend Developer - Contingent

Remote or McLean, Virginia

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Today

Public Trust Eligibility Required This is a contingent position, meaning employment is dependent upon the successful award of the associated contract to Aretum and completion of any required background investigation or security clearance verification. About Aretum Aretum is a mission-driven organization committed to delivering innovative, technology-enabled solutions to our customers across defense, civilian, and homeland security sectors. Our teams work at the intersection of strategy, techno

Full-time

USD 120,000.00 - 145,000.00 per year

Software Developer

Bethesda, Maryland

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Today

Bachelor's degree preferably in an IT related field and a minimum of 6 years of related experience; or a master's with 4 years of experience; an Associates with 8 years of experience. Extensive backend development experience with JavaScript's programming language and how it applies to ServiceNow, along with ServiceNow Glide. ServiceNow developer certification, preferably Certified System Administrator (CSA). Understanding of and support with best practices across both commercial and federal sect

Full-time

Senior Java Developer - W2 & F2F

Washington, District of Columbia

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30+d ago

Senior Java DeveloperRate- on w2In person Interview Looking for 16+yrs exp profiles Required/Desired Skills SkillRequired /DesiredAmountof ExperienceExperience with core JAVA development with strong back-end developmentRequired10YearsJAVA Annotations, Generics, Reflection, Inheritance, OO Design, NIO, Bean ValidationRequired5YearsSpring Boot Application Development ExperienceRequired3YearsSpring Java Config, Dependency Injection, Auto wiring ConceptsRequired3YearsSpring Integration Development

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Contract

Depends on Experience

Visualization & Simulation Software Engineer

Chantilly, Virginia

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Today

FTS International, LLC (FTS) is committed to providing the Federal Government with quality consultants and support. To ensure mission success we focus on putting our customers first while minimizing corporate bureaucracy on our staff. We provide Subject Matter Experts (SME) free of Organizational Conflicts of Interest (OCI) focused on independent analysis and mission support services within the disciplines of Engineering, Counter Terrorism Operations, Management, Information Technology, Signals

Full-time

USD 65,000.00 - 85,000.00 per year

Backend Software Engineer

Gaithersburg, Maryland

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Today

Overview Backend Software Engineer Gaithersburg, MD Active TS (SCI eligibility) clearance and eligibility to obtain a CI poly required At Bcore, our strength comes from how we deliver impact to the mission. Whether it's architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because of the expertise, collaboration, and agility of our teams. Our Mission Services division combines enterprise IT, cloud solutions, DevSecOps, systems

Full-time

USD 107,900.00 per year

Software Engineer - Frontend Development

Reston, Virginia

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Today

About Metron Metron is an employee-owned company dedicated to delivering innovative solutions for the most challenging national security problems. For over 40 years, our principled approach to problem-solving has yielded creative solutions at the intersection of advanced mathematics, computer science, physics, and engineering. Our people are leaders in their technical fields and are passionate about solving challenging problems. We look for individuals who share this same passion and can apply

Full-time

Principal Engineer

Herndon, Virginia

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Today

Who we are DigiCert is a global leader in intelligent trust. We protect the digital world by ensuring the security, privacy, and authenticity of every interaction. Our AI-powered DigiCert ONE platform unifies PKI, DNS, and certificate lifecycle management, to secure infrastructure, software, devices, messages, AI content and agents. Learn why more than 100,000 organizations, including 90% of the Fortune 500, choose DigiCert to stop today's threats and prepare for a quantum-safe future at ;br> J

Full-time

USD 160,000.00 - 190,000.00 per year

Web Developer

Chantilly, Virginia

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Today

Job Description FusionInnovation's recent growth has earned us a top spot in the Inc 5000 FastestGrowing Private Companies in America and in Washington Business Journal's BestPlaces to Work multiple years in a row. Our team members are passionate abouttheir work and are empowered to contribute their unique skills and perspectivesto our projects. Here at Fusion, we put people first. When you join us, youdon't just join a company, you join a family. If you are ready to be part of afun and engagin

Full-time

USD 100,000.00 - 215,000.00 per year

Full Stack Engineer (Node/React) - Remote USA

Remote or Reston, Virginia

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Today

The Team Our Health Engineering Solutions (HES) team works side by side with customers to articulate a vision for success, and then make it happen. We know success doesn't happen by accident. It takes the right team of people, working together on the right solutions for the customer. We are looking for a seasoned Full Stack Engineer who will be a key driver to make this happen. Our team supports the vision to improve patient quality care and consumer decision-making by hospital providers across

Full-time

USD 98,614.00 - 167,644.00 per year

Software Engineer - .NET / APIS

Reston, Virginia

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Today

Job Summary: Securiport is hiring a Software Engineer (3-5 years experience) to 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 engineers and DevOps teams in an Agile environment, contributing to systems that are secure, distributed, and performance-driven. This is an ideal opport

Full-time

USD 110,000.00 - 135,000.00 per year

Software Development Engineer II- Back End

Vienna, Virginia

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Today

Overview In this position, you will build software leveraging Esri's products and APIs to build core backend services that solve complex problems at a global scale. This is a unique opportunity to grow your technical skills while contributing to projects that matter. You'll work alongside engineers and mentors in a collaborative, cross-functional environment that values learning, innovation, and purpose. From building intuitive AI web interfaces to writing Python for geoprocessing tools and AI

Full-time

USD 97,240.00 - 162,240.00 per year

Mid-Level Backend Software Engineer

Gaithersburg, Maryland

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Today

Overview Mid-Level Backend Software Engineer Gaithersburg, MD Active TS clearance (SCI eligibility) and eligibility to obtain a CI poly required At Bcore, our strength comes from how we deliver impact to the mission. Whether it's architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because of the expertise, collaboration, and agility of our teams. Our Mission Services division combines enterprise IT, cloud solutions, DevSecO

Full-time

USD 87,000.00 - 157,450.00 per year

Sr. Mobile Developer

Rockville, Maryland

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Today

Senior Mobile Developer SUMMARY: We are seeking a highly skilled Senior Mobile Developer with a minimum of 5 years of experience in iOS and Android app development. The ideal candidate will have a strong background in cross-platform mobile development, using a framework like React Native, and be proficient in a variety of mobile development technologies. Additionally, expertise in back-end technologies, specifically AWS services and API integration, is a strong plus to create robust, feature-r

Full-time

USD 125,000.00 - 155,000.00 per year

Backend Development jobs in Ashburn, VA, USA