84 back end engineer jobs at 62 companies in Frederick, MD
Backend Engineer
Washington or Boston or Indianapolis
$101k-$138k/yr HybridFull Time
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
Backend Engineer
El Segundo or Washington or Palo Alto or San Francisco or Austin or New York City
$80k-$210k/yr OnsiteFull Time
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
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
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
Senior Backend Engineer
Vienna, Virginia, United States
OnsiteFull Time
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++
Lead Backend Engineer
Washington, District of Columbia, United States
$142k-$213k/yr OnsiteFull Time
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
Sr Backend Engineer
Reston, Virginia, United States
$110k-$125k/yr RemoteFull Time
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
Senior Backend Engineer
Tysons Corner, Virginia, United States
HybridFull Time
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
Senior Backend Engineer
Columbia, Maryland, United States
$100k-$120k/yr HybridFull Time
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
Back End Developer
McLean or Fort Belvoir
$87k-$198k/yr OnsiteFull Time
Experience with Java, Spring or Quarkus, Git and GitLab CI/CD; Secret clearance; HS diploma or GED; ability to obtain Security+ within 3 months; team environment experience.
Java, Spring, Quarkus, Git, GitLab CI/CD, Docker, Kubernetes, Python, Bash, Kafka Streams, Neo4j, Kafka, Spark
Backend Developer, Palantir
Arlington or Rosslyn
$103k-$171k/yr OnsiteFull Time
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
Backend Software Engineer
San Francisco or Los Angeles or Washington or San Diego or Seattle or London
$130k-$220k/yr OnsiteFull Time
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
Backend Data Engineer
Dubai or Belgrade or Bosnia And Herzegovina or Sarajevo or Tuzla or Massachusetts or Washington
OnsiteFull Time
Production experience with Python, FastAPI, TypeScript, Express, PostgreSQL, OAuth/OIDC, JWT, authorization, distributed systems, service contracts, testing, observability, and secure engineering practices.
Python, FastAPI, TypeScript, Express, PostgreSQL, SSE, WebSocket, OIDC, JWT, Sentry, Langfuse, Pydantic, asyncio, Snowflake, ClickHouse, NetworkX, GCP, AWS, Temporal
Backend Software Developer
Annapolis Junction, Maryland, United States
$166k-$222k/yr HybridFull Time
14+ YOERequires 14 years of software engineering experience, a bachelor's degree or four additional years' experience, AWS and DevOps expertise, programming experience, Agile tools, and active TS/SCI clearance with polygraph.
Amazon Web Services (AWS), Git, Java, C++, Python, SQL, PostgreSQL, Jira, Confluence, DevOps
Library Support Backend Developer
Beltsville, Maryland, United States
OnsiteFull Time
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
Senior Backend Developer (Java / Integrations)
Falls Church, Virginia, United States
$100k-$150k/yr HybridFull Time
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
Backend Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
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
Backend / Integration Engineer
Washington, District of Columbia, United States
$75-$80/hr HybridFull Time
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
Backend Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Experience with test procedures, technical documentation, Agile, AWS, Jira, Confluence, quality control, Git, Java/C++/Python, relational databases, and SQL.
Amazon Web Services, Jira, Confluence, Git, Java, C++, Python, PostgreSQL, SQL
Knowledge Engineer Manager - Back-end Engineer
United States or Albany or Arlington or Atlanta or Austin or Beaverton or Bentonville or Boston or Carmel or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Culver City or Denver or Des Moines or Detroit or Hartford or Houston or Irving or Kirkland or Miami or Milwaukee or Minneapolis or Morristown or Mountain View or Nashville or New York City or Oklahoma City or Overland Park or Philadelphia or Pittsburgh or Raleigh or Redmond or Sacramento or San Diego or San Francisco or Scottsdale or Seattle or St. Louis or St. Petersburg or Walnut Creek +1 more
$80k-$294k/yr HybridFull Time
5+ YOERequires 5+ years in knowledge graphs, ontology mapping, R2RML, graph and relational databases, vector databases, Python or Java, REST APIs, and a bachelor's degree or equivalent.
RDF, OWL, SKOS, RDFS, SPARQL, R2RML, CSVW, SHACL, GraphDB, Stardog, Neo4j, Amazon Neptune, PostgreSQL, MySQL, SQL Server, Pinecone, Weaviate, Milvus, Qdrant, Elasticsearch, OpenSearch, Python, Java, SQL, JSON, XML, CSV, REST APIs, Apache NiFi, Airflow, Docker, Kubernetes, Helm, AWS Neptune, Azure Cosmos DB, GCP, Kafka, RabbitMQ, Git, GraphQL, D3.js, Cytoscape.js, Terraform
Backend Software Engineer - Distribution
Arlington, Virginia, United States
OnsiteFull Time
7+ YOERequires 7+ years of backend, platform, or distributed systems experience; production software in complex operational domains; proficiency in Go, C++, Java, or Rust; distributed systems, APIs, messaging, cloud infrastructure, and technical project leadership.
Go, C++, Java, Rust, MIP, LP, CP, OR-Tools, Gurobi
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