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284 backend developer jobs at 151 companies in Rockville, MD

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Backend Engineer
Denver or Seattle or Washington or San Francisco or Los Angeles or Arvada or San Francisco or Nashville or Denver or Santa Fe or New Orleans or San Diego or Bozeman or New York City
$120k-$180k/yr HybridFull Time
Quindar
Quindar: Automation First. Mission Ready. Mission management software delivering a common operating picture, system-of-systems integration, and resiliency across commercial and government space missions.
3+ YOERequires Python backend development, AWS, GraphQL, Docker, Terraform, APIs, Kubernetes, Git, a computer science bachelor's degree, and 3+ years of experience; U.S. person status and security clearance eligibility required.
Python, AWS, GraphQL, Docker, Terraform, OpenAI, Anthropic, AskSage, Kubernetes, AWS Lambda, Amazon ECS, Amazon EKS, Amazon CloudWatch, Amazon S3, Amazon EFS, Amazon EBS, Amazon EC2, Amazon RDS, Git, GitHub, GitLab, CI/CD
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Backend Engineer
Washington or Boston or Indianapolis
$101k-$138k/yr HybridFull Time
Lilt
Lilt: AI-powered platform for enterprise language translation and localization.
2+ YOE2-5 years backend software engineering experience; experience with REST APIs, streaming services, Node.js/TypeScript, Java, or Python; US citizenship and residence in the US; ability to work with CI/CD and automated testing.
Node.js, TypeScript, Java, Python, REST, GraphQL, WebSockets, gRPC, Kafka, GitHub Actions, Datadog, Microsoft Teams, Slack, Zoom
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Backend Developer, Palantir
Arlington or Rosslyn
$103k-$171k/yr OnsiteFull Time
Deloitte
Deloitte: Global professional services network providing audit, consulting, tax, and advisory services.
1+ YOEBachelor's degree; 1+ years backend development, troubleshooting, data modeling, CI/CD, Python/SQL; active Secret clearance; onsite 4+ days/week in Arlington or Rosslyn, VA; travel 5-25%; U.S. work authorization without sponsorship.
Palantir Foundry, Python, SQL, Maven Smart System, REST APIs, JSON
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Senior Backend Engineer
Vienna, Virginia, United States
OnsiteFull Time
Antithesis
Antithesis: Software reliability platform that autonomously tests mission-critical systems for engineering teams.
5+ YOE5+ years of software engineering experience; expertise in APIs, services, storage or data-intensive backend systems, distributed systems, correctness, testing, and system performance.
Rust, C, C++
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Backend Software Developer
Annapolis Junction, Maryland, United States
$166k-$222k/yr HybridFull Time
Quevera
Quevera: Veteran-owned custom software engineering firm serving government customers with mission-critical IT solutions.
Active TS/SCI with Polygraph required; experience developing, testing, and documenting backend software; experience with AWS, Jira, Confluence, Agile; ability to create test procedures and support integrations.
Amazon Web Services (AWS), Jira, Confluence
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Senior Backend Engineer
Columbia, Maryland, United States
$100k-$120k/yr HybridFull Time
Quidient
Quidient: Spatial AI specializing in Generalized Scene Reconstruction software.
4+ YOEBachelor's or equivalent,4+ years building backend systems/APIs,strong AWS,Docker,Python or Node.js,CI/CD and infrastructure-as-code experience,ability to meet security vetting.
AWS Lambda, API Gateway, Amazon S3, Amazon EC2, ECS, EKS, CloudFormation, Docker, Python, Node.js, CI/CD, OAuth, OpenID
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Lead Backend Engineer
Washington, District of Columbia, United States
$142k-$213k/yr OnsiteFull Time
Comcast
ComcastNASDAQ: CMCSA: A global media and technology.
8+ YOE4+ Mgmt8+ years software engineering with backend focus, 4-6+ years leading technical projects, expert Golang, strong AWS, Kubernetes, Terraform, microservices, REST APIs, CI/CD, SQL/NoSQL, mentoring experience.
Amazon Web Services (AWS), Kubernetes, Terraform, Golang, REST APIs, CI/CD, SQL, NoSQL
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Backend Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Blue Ridge Dynamics
Blue Ridge Dynamics: Software development and engineering services serving federal government and commercial businesses with custom digital solutions.
2+ YOE2+ years backend development experience with Node.js/TypeScript, RESTful APIs, relational databases, Git, testing, and secure coding; strong problem-solving and communication skills.
Node.js, TypeScript, PostgreSQL, JavaScript, NestJS, Fastify, Express, MySQL, Git, Docker, Kubernetes, AWS, Azure, Google Cloud, OAuth 2.0, OpenID Connect, JWT, Drizzle ORM, CI/CD
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Sr Backend Engineer
Reston, Virginia, United States
$110k-$125k/yr RemoteFull Time
Trillion Technical Solutions, Inc.
Trillion Technical Solutions, Inc.: Private IT consulting firm serving federal agencies and commercial organizations with cybersecurity, cloud, data, AI, and healthcare technology services.
7+ YOE7+ years software engineering experience, expert Python, GraphQL APIs, AWS, cloud-native development, CI/CD, mentoring, customer engagement, AI-assisted development tools, Public Trust clearance, U.S. work authorization.
Python, GraphQL, AWS, CI/CD
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Senior Backend Developer (Java / Integrations)
Falls Church, Virginia, United States
$100k-$150k/yr HybridFull Time
BizFlow
BizFlow: Private U.S. low-code workflow automation serving federal agencies and commercial enterprises.
10+ YOEBachelor's degree in CS/Engineering or equivalent; 10+ years backend development with strong Java; strong SQL; experience with REST/SOAP integrations; mentoring and technical direction; US Citizen or Permanent Resident.
Java, Spring Framework, Spring Boot, Hibernate/JPA, Querydsl, Spring Integration, Apache Camel, BizFlow M, BizFlow AppDev, Oracle, MS SQL Server, SQL, RESTful APIs, SOAP Web Services, gRPC, JSON, XML, SAML, OAuth 2.0, JWT, mTLS, OWASP, Windows, Linux, Tomcat, WildFly/JBoss, Docker, AWS, Git, GitHub, Jira, Confluence, SharePoint, Postman, Jenkins, GitHub Actions
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Backend Engineer
El Segundo or Washington or Palo Alto or San Francisco or Austin or New York City
$80k-$210k/yr OnsiteFull Time
Gallatin AI
Gallatin AI: Defense technology providing AI-powered logistics decision-support software to military and allied defense organizations.
Proficiency in Python, Node.js, TypeScript, or Java; API design (REST, GraphQL); relational and NoSQL databases; cloud (AWS, GCP, Azure); Docker, Kubernetes; infrastructure as code; testing; U.S. citizenship required; ability to obtain security clearance.
Python, Node.js, TypeScript, Java, REST, GraphQL, PostgreSQL, MongoDB, DynamoDB, Redis, AWS, GCP, Azure, Docker, Kubernetes, Terraform, CloudFormation, Palantir Foundry
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DevOps Backend Engineer
Lexington or Arlington or Tampa or Montgomery or Colorado Springs
$78k-$176k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Global firm providing management, technology, and engineering consulting services.
5+ YOE5+ years DevOps/DevSecOps experience, 3+ years backend development with Python/Java/C#/.NET/Go/Node.js, cloud-native solutions on AWS/Azure/GCP/OCI, CI/CD pipelines, Terraform, scripting, ability to obtain Secret clearance, Bachelor's degree.
Python, Java, C#/.NET, Go, Node.js, AWS, Azure, Google Cloud, OCI, Cloud One, Kubernetes, Docker, GitLab CI/CD, Jenkins, GitHub Actions, Azure DevOps, Terraform, Linux Shell, PowerShell, Ansible
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3mo
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Backend / Integration Engineer
Washington, District of Columbia, United States
$75-$80/hr HybridFull Time
Innodata
InnodataThe Nasdaq Stock Market LLC: INOD: Public data engineering providing AI training, evaluation, safety, and deployment services to technology companies and enterprises.
6+ YOEBachelor's in CS or related (or equivalent experience),6+ years experience (4+ in backend/API integration),strong Python backend skills,REST async integration,Databricks/Spark familiarity,JSON schema design,active Secret clearance with TS/SCI eligibility.
Databricks REST API, Databricks, Spark, Python, JSON, Duality, ServiceNow REST API, ZenML, React, REST API
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Software Developer - Backend
Chantilly, Virginia, United States
OnsiteFull Time
LT Consulting
LT Consulting: Minority-owned IT consulting firm delivering software, systems, database, and integration services to Intelligence Community customers.
Requires active TS/SCI clearance with polygraph, bachelor's degree, backend API development experience, Java, Spring Boot, Node, Express, Python, Flask or Django, databases, Git, Agile, JIRA, and Confluence.
Java, Spring Boot, Node, Express, Python, Flask, Django, RESTful APIs, PostgreSQL, MySQL, Oracle, OAuth 2.0, OpenID Connect, Gradle, Maven, NPM, Pip, Git, JIRA, Confluence, AWS, Amazon EC2, Amazon RDS, Amazon S3, Amazon SQS, AWS Lambda, Docker, Kubernetes, Prometheus, Grafana, ELK, Redis, Memcached
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Senior Backend Engineer
Tysons Corner, Virginia, United States
HybridFull Time
Pansophic Learning
Pansophic Learning: Private global school management operating early-learning, K–12, international, and higher-education programs for students worldwide.
10+ YOEBachelor's degree in Computer Science or related field; 10+ years software development; 5+ years Node.js/Express; expert JavaScript/TypeScript; RESTful APIs; SQL (PostgreSQL); NoSQL; AWS services; Git; Unix/Linux; ability to pass FBI/BCI background checks.
Node.js, Express, PostgreSQL, MongoDB, DynamoDB, Amazon Web Services (AWS), Lambda, ECS, EC2, RDS, S3, API Gateway, Git, Docker, Docker Compose, AWS CDK, Unix, Linux
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Backend Software Engineer
San Francisco or Los Angeles or Washington or San Diego or Seattle or London
$130k-$220k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Redefining modern defense with a multi-product portfolio.
Backend and cloud engineering experience with scalable distributed systems; must be a U.S. Person and able to obtain and maintain a U.S. security clearance.
Microsoft Azure, Python, Terraform, Kubernetes, TypeScript, React, CI/CD
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Senior Backend Software Engineer
Arlington, Virginia, United States
$159k-$263k/yr OnsiteFull Time
Twenty Technologies
Twenty Technologies: Private U.S. cyber-warfare software building AI-enabled systems for the military and Intelligence Community.
5+ YOE5+ years backend development experience; strong Go proficiency; graph database experience (Neo4j, AWS Neptune); event-driven architectures; API development; AWS; containerization; secure coding; bachelor's in CS or equivalent; U.S. citizenship required.
Go, GraphQL, REST, Neo4j, AWS Neptune, NATS, AWS, Docker, Kubernetes, CI/CD
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Library Support Backend Developer
Beltsville, Maryland, United States
OnsiteFull Time
One Federal Solution
One Federal Solution: Professional services firm providing contract support to government agencies.
6+ YOE6+ years developing enterprise applications with SQL Server and MySQL; extensive Python, Django, GraphQL, REST APIs, Linux; 2+ years open-source, Git/GitHub, Docker, Section 508 and WCAG 2.x AA compliance.
Python, Django, GraphQL, REST APIs, SQL Server, MySQL, Git, GitHub, Docker, Linux, HTML, XHTML, CSS, PostgreSQL
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Backend Python Engineer - Polygraph Required
Chantilly, Virginia, United States
OnsiteFull Time
BTI360
BTI360: Private software development delivering generative AI, advisory, and secure software solutions to U.S. government customers.
Active TS/SCI with polygraph; experience developing backend services with Python and modern web frameworks; experience with source control, CI/CD tools, containerized cloud environments, and testing frameworks.
Python, FastAPI, Flask, Django, Chalice, Git, GitHub Actions, GitLab CI, AWS CodeBuild, Jenkins, AWS, PyTest, unittest, poetry, make, uv, pip, conda, REST, HTTP, OpenSearch, Elasticsearch, Solr, SNS, SQS, Kafka, Kinesis, AWS Step Functions, Event Bridge, Terraform
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