Backend Development jobs in Gaithersburg, MD

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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20d 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

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

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

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

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

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

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

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

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

Backend Software Engineer

Washington, District of Columbia

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Today

Job Title: Backend Software Engineer Location: Washington, D.C. Clearance Required: Active TS/SCI Position Overview IT Veterans is seeking a highly skilled Backend Software Engineer to support the design, development, and maintenance of secure, scalable backend solutions for web applications operating in Department of Defense (DoD) environments at Impact Level 5 (IL5) and above. The ideal candidate will develop reliable server-side applications and services that integrate commercial Frontier AI

Full-time

Software Engineer Level 4

Washington, District of Columbia

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Today

Requisition ID: 3914Standard Title: Software EngineerRequired Security Clearance: Top Secret/SCI with CI PolygraphLocation: Washington, DCWork 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,

Full-time

Software Engineer Level 5

Washington, District of Columbia

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Today

Requisition ID: 3836Standard Title: Principal Software EngineerRequired Security Clearance: Top Secret/SCI with CI PolygraphLocation: Washington, DCWork 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 dev

Full-time

Library Support Backend Developer

Beltsville, Maryland

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10d ago

One Federal Solution is seeking an experienced Library Support Backend Developer to support the National Agricultural Library (NAL) Library Support System. The successful candidate will be responsible for backend application development, maintenance, modernization, and enhancement of database-driven applications and APIs. This role also includes applying artificial intelligence techniques to extract structured information from diverse scientific publications while supporting the modernization of

Full-time

Mid-Level Backend Software Engineer

Gaithersburg, Maryland

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Today

Mid-Level Backend Software Engineer Location: Gaithersburg, Maryland; Alexandria, VA; Chantilly, VA; Aurora, CO; St. Louis, MO; Tucson, AZ Clearance: Top Secret/SCI with the ability to successfully pass a Polygraph Schedule: Full Time Travel: Yes, 10% of the time Remote: No Remote Company Overview We are Ennoble First. The people supporting and securing some of the most complex government, defense, and intelligence projects across the country. We ensure today is safe and tomorrow is smarter. Our

Full-time

USD 105,000.00 - 125,000.00 per year

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

Senior Backend Software Engineer

Gaithersburg, Maryland

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Today

Senior Backend Software Engineer Location: Gaithersburg, Maryland; Alexandria, VA; Chantilly, VA; Aurora, CO; St. Louis, MO; Tucson, AZ Clearance: Top Secret/SCI with the ability to successfully pass a Polygraph Schedule: Full Time Travel: No Remote: No Remote Company Overview We are Ennoble First. The people supporting and securing some of the most complex government, defense, and intelligence projects across the country. We ensure today is safe and tomorrow is smarter. Our work has meaning

Full-time

USD 130,000.00 - 160,000.00 per year

Custom Applications Developer

Arlington, Virginia

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Today

The Customer Applications Developer will independently manage a range of technical tasks, including implementing enhancements, performing upgrades, and delivering maintenance fixes to meet project requirements. The ideal candidate will be proactive in identifying and resolving complex issues, leveraging strong troubleshooting skills to conduct thorough root cause analysis. Their ability to communicate technical challenges clearly and escalate concerns early will be essential to smooth project de

Full-time

USD 64,000.00 - 124,200.00 per year

Backend Development jobs in Gaithersburg, MD, USA