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124 backend engineer jobs at 80 companies in Maryland

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Backend Developer
Bethesda, Maryland, United States
$110k-$115k/yr OnsiteFull Time
West 4th Strategy
West 4th Strategy: Federal IT services and professional-services firm providing technology and mission-support teams to government agencies and prime contractors.
5+ YOE5+ years backend experience with Java/Spring Boot, SQL/Hibernate, microservices, DevSecOps CI/CD, Aurora PostgreSQL; active U.S. citizenship and secret clearance required; bachelor's degree required.
Java, Spring Boot, Aurora PostgreSQL, SQL, Hibernate/JPA, EMR, EKS, API Gateway, Cognito, SQS, SES, Lambda, MQTT, DevSecOps, SAST/DAST
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Backend Engineer
California or Colorado or Georgia or Idaho or Illinois or Kansas or Massachusetts or Maryland or Michigan or Minnesota or New Jersey or New York or Ohio or Oregon or Pennsylvania or Rhode Island or Texas or Washington
$180k-$220k/yr RemoteFull Time
Unit21
Unit21: Private AI risk-infrastructure helping banks and fintechs detect fraud and manage anti-money-laundering operations.
5+ YOE5+ years in data/software engineering, experience with large-scale data processing, advanced SQL, Python/OOP, cloud platforms, and infrastructure-as-code (Terraform).
Apache Spark, Databricks, Flink, Beam, Python, SQL, AWS, Azure, Google Cloud, Terraform
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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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Senior Backend Software Engineer
Arkansas or California or Colorado or District of Columbia or Florida or Illinois or Massachusetts or Maryland or Maine or Michigan or New Jersey or Ohio or Pennsylvania or South Carolina or Texas or Utah or Virginia or Washington
$165k-$195k/yr RemoteFull Time
SITE Technologies
SITE Technologies: AI-powered facility intelligence platform helps commercial, industrial, and retail property owners assess assets and plan maintenance.
5+ YOE5+ years backend development experience with Python and FastAPI, strong backend architecture, relational modeling, AWS services, Docker, CI/CD, and cross-team communication.
Python, FastAPI, PostgreSQL, SQLAlchemy, Alembic, Flyway, AWS, ECS, Lambda, RDS, S3, IAM, Docker, Git, CI/CD, GitHub Actions, AWS CodePipeline, Claude Code, Cursor, Terraform, Terragrunt, Datadog, Sentry, LangGraph, Claude Code SDK, Amazon Bedrock
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2mo
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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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API Backend Developer
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 Python, Django, GraphQL, REST APIs, and relational databases; experience with AI extraction from scientific publications and accessibility (Section 508/WCAG).
Python, Django, GraphQL, REST APIs, SQL Server, MySQL, PostgreSQL, Git, GitHub, Docker, Linux, HTML, XHTML, CSS
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Mid Level - Backend Software Engineer
Laurel, Maryland, United States
$120k-$181k/yr HybridFull Time
ELEVI Associates
ELEVI Associates: Private Maryland IT consultancy and staffing provider serving government, DoD, and commercial enterprise clients.
8+ YOEMinimum 8 years application design and development experience with backend databases, full lifecycle development, Python backend services, REST APIs, cloud environments, automated testing, Docker/Kubernetes, and Agile delivery.
React, Angular, Python, PyTest, JUnit, Docker, Kubernetes, AWS, REST, JavaScript, C++, Perl, Ruby
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3w
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Backend Data Engineer
Massachusetts or California or Maryland or Texas or Virginia or Dubai or Bosnia And Herzegovina or Croatia or Serbia or Belgrade or Sarajevo or Tuzla or Washington
HybridFull Time
Ruya AI
Ruya AI: Venture-backed defense-technology building AI-native intelligence software for sovereign institutions and affiliated organizations.
Production experience with Python, FastAPI, TypeScript, Express, PostgreSQL, OAuth/OIDC, JWT, authorization, service contracts, testing, observability, and distributed-system reliability.
Python, FastAPI, TypeScript, Express, PostgreSQL, OIDC, JWT, Sentry, Langfuse, Pydantic, asyncio, Snowflake, ClickHouse, NetworkX, Temporal, GCP, AWS, REST APIs, SSE, WebSocket
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5d
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Backend Software Engineer (Python)
Texas or Maryland
$136k-$190k/yr RemotePart Time
Merkle
Merkle: Merkle is a dentsu-owned global experience consultancy delivering data, technology, marketing, and customer-experience services to brands.
2+ YOEBachelor's degree in computer science, engineering, or related field; 6+ years coding experience, 2+ years Python and REST API experience, data persistence, monitoring, concurrent systems, and version tracking.
Python, asyncio, Tornado, Celery, Redis, Postgres, NoSQL, MongoDB, OpenAI, Anthropic, Cohere
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Senior Manager, Backend Services
New York City or Los Angeles or Chicago or Stamford or California or Connecticut or Florida or Georgia or Illinois or Indiana or Maryland or Massachusetts or Michigan or Minnesota or Nevada or New Hampshire or New Jersey or New York or North Carolina or Oregon or South Carolina or South Dakota or Texas or West Virginia or Wisconsin or Wyoming
$179k-$210k/yr HybridFull Time
A+E Networks
A+E Networks: Private global media producing and distributing television, documentary, scripted, and digital entertainment worldwide.
7+ YOE2+ Mgmt7+ years backend engineering, 2+ years engineering management, GraphQL and REST API design, Node.js and cloud-native experience, CI/CD, Docker/Kubernetes, strong communication and leadership.
GraphQL, Apollo, Hasura, REST, Node.js, AWS, GCP, Azure, CI/CD, Docker, Kubernetes, Pulumi, SQL, NoSQL, GitHub Copilot, Claude Code, Stripe, PayPal, Recurly, Auth0, Cognito, LoginRadius, Kafka, SNS, SQS
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Drupal Backend Engineer, (Consultant, Engineering & Technical Services)
Baltimore or Alabama or California or Delaware or District of Columbia or Florida or Georgia or Maryland or New Jersey or New York or North Carolina or Pennsylvania or South Carolina or Tennessee or Texas or Virginia or West Virginia
$96k-$133k/yr RemoteFull Time
Fearless
Fearless: Employee-owned digital services integrator building software, data, and cybersecurity solutions for government agencies.
5+ YOE5+ years Drupal development with Drupal 11, ability to build custom modules/APIs, security and performance remediation, experience with DDEV/Docker, testing (Cypress, PHPUnit), Git workflows, and ability to obtain Public Trust clearance.
Drupal, DDEV, Docker, Xdebug, Cypress, PHPUnit, Git, GitHub Copilot, VS Code, PHPStorm, Jira, Confluence, Slack, Zoom, Microsoft Teams, Twig
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Backend Software Engineer — Secure Mission Systems
Laurel, Maryland, United States
RemoteFull Time
Rackner
Rackner: Cloud-native engineering consultancy serving U.S. government and enterprise clients with DevSecOps, AI, cybersecurity, and software.
4+ YOEU.S. citizenship and active final DoD Secret clearance required; 4+ years software development experience; bachelor’s degree in CS or related; experience with Python or C#, backend services, APIs, testing, and secure SDLC.
Python, C#, FastAPI, gRPC, Celery, RabbitMQ, PostgreSQL, PostGIS, OpenShift, Kubernetes, GitLab CI/CD, LLM, AI/ML
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3mo
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Mid-Level Backend Software Engineer
Gaithersburg, Maryland, United States
$87k-$157k/yr OnsiteFull Time
Bridge Core
Bridge Core: Private national-security technology serving U.S. defense and intelligence agencies with engineering, analytics, cloud, and mission services.
2+ YOEActive Top Secret/SCI clearance with CI poly eligibility; bachelor's or master's in computer science/software engineering; 2–8 years experience depending on degree; strong Java or Python, REST API, SQL, and Linux skills.
Java, Python, SQL, Linux, Apache Airflow, Spring Boot, Django, GitLab, Jenkins, Docker, OpenShift, AWS, Azure
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3mo
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Mid-Level Backend Software Engineer
Baltimore, Maryland, United States
$87k-$157k/yr OnsiteFull Time
Baltimore Corps
Baltimore Corps: Nonprofit talent-placement organization connecting local professionals with public and social-sector employers.
4+ YOEBachelor's degree with 4–8 years or master's degree with 2–6 years of experience; active TS/SCI clearance with polygraph eligibility; Java or Python, RESTful APIs, SQL, and Linux experience required.
Java, Python, RESTful APIs, SQL, Linux, Apache Airflow, Spring Boot, Django, GitLab, Jenkins, Docker, OpenShift, AWS, Azure
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1mo
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Backend Software Developer (Telework) (BT-2)
Annapolis Junction, Maryland, United States
$190k-$225k/yr HybridFull Time
Legato, LLC
Legato, LLC: Private small-business IT engineering services provider serving the Intelligence Community.
14+ YOETS/SCI with Polygraph, 14+ years software engineering experience, proficiency in Java/C++/Python, AWS, Git, PostgreSQL/SQL, Jira/Confluence, Agile, testing, and technical documentation; bachelor's degree or 5 additional years experience.
Java, C++, Python, Git, PostgreSQL, SQL, Amazon Web Services (AWS), Jira, Confluence
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2mo
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Application Developer (backend) 4
Linthicum, Maryland, United States
$198k-$212k/yr OnsiteFull Time
Lentech
Lentech: Employee-owned federal IT and mission-technical services contractor supporting civil, defense, and intelligence agencies.
6+ YOEDevelop backend Python microservices and ReST endpoints using Django/Flask; work with MongoDB or MariaDB, Docker, and CI tooling; 6+ years experience typically required depending on degree.
Python, Docker, Django, Flask, MariaDB, MongoDB, ReST, JSON, XML, Jira, Confluence, Git, AWS
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1w
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Software Engineer, Backend
New York City or San Francisco or California or Colorado or Florida or Idaho or Illinois or Maine or Maryland or Nevada or New Jersey or New York or North Carolina or North Dakota or Pennsylvania or Rhode Island or Tennessee or Texas or Virginia or Washington
$160k-$240k/yr OnsiteFull Time
Opto Investments
Opto Investments: Private-markets software platform helping wealth managers build, fundraise for, and manage investment programs.
6+ YOE6+ years of software development; proficiency in Python, REST APIs, SQL, TypeScript, React, AWS, distributed systems, testing, CI/CD, and AI/LLM applications.
TypeScript, React, Next.js, Python, FastAPI, REST, AWS Lambda, AWS, SQL, pytest, CI/CD, AI, LLMs
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4w
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Software Engineer (Backend Focus)
Annapolis Junction, Maryland, United States
$120k-$240k/yr OnsiteFull Time
Set of X
Set of X: Private engineering-services providing software and technical support to U.S. government customers.
8+ YOE8+ years experience, expert in Java or C#, Gradle/Maven, Docker/Kubernetes, Git; experience with graph databases (Neo4j) and high-performance tuning; TS/SCI with polygraph required.
Java, C#, Gradle, Maven, Docker, Kubernetes, Git, Neo4j
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1mo
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Junior Software Developer (Backend Focused)
Annapolis Junction, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: Public U.S. defense technology providing AI-powered decision-intelligence software and services to government and commercial customers.
3+ YOE3+ years software engineering experience with strong Java and Spring Boot skills, RESTful services, MongoDB/NoSQL experience, automated testing, and TS/SCI with poly clearance required.
Java, Spring Boot, MongoDB, Vue.js, Apache Kafka, Linux
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Junior Software Developer (Backend Focused)
Annapolis Junction, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: Public U.S. defense technology providing AI-powered decision-intelligence software and services to government and commercial customers.
3+ YOE3+ years software engineering with a technical Bachelor's (or 7+ years experience), strong Java and Spring Boot skills, MongoDB or similar DB experience, and automated testing experience; active TS/SCI with poly required.
Java, Spring Boot, MongoDB, Apache Kafka, Linux, Vue.js
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