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Frederick • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Frederick • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Frederick • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Frederick • 50 milesRemote · Hybrid · Onsite · Field · All Environments

239 senior backend developer jobs at 128 companies in Frederick, MD

PromotedHiringCafe

Founding Backend / Infra Engineer

Cupertino, CA, US

$160k-$300k/yr On-SiteFull Time

HiringCafe

HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.

Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.

Node.js, Python, Elasticsearch, Redis

Help us #BeatIndeed & #BeatLinkedIn

2mo

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2mo

Senior Backend Developer

Vienna, Virginia, United States

OnsiteFull Time

Chenega Corporation

Chenega Corporation: Provides professional government, defense, and facility support services.

5+ YOEBachelor's in CS/engineering/GIS; 5+ years backend experience; Python, Node.js, Java; REST APIs; ArcGIS Enterprise; containerized environments; TS/SCI eligibility.

Python, JavaScript/Node.js, Java, ArcGIS Enterprise, Docker, Kubernetes, REST API, PostgreSQL, PostGIS, SQL Server

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3mo

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3mo

Senior Backend Engineer

Vienna, Virginia, United States

OnsiteFull Time

Antithesis

Antithesis: Autonomous software testing platform for deterministic bug detection.

5+ YOE5+ years software engineering; Rust preferred; API/service/storage backend experience; distributed systems; on-call readiness; mentorship.

Rust, APIs, Storage engines, Query engines

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1mo

Senior Engineer, Backend

Washington, District of Columbia, United States

HybridFull Time

VIA

VIA: Provides secure decentralized identity and data privacy software solutions.

Production experience building backend services in TypeScript and Go, PostgreSQL schema and query optimization, AWS and containerized deployments, API design, AI-assisted development experience; U.S. citizenship and bachelor's or equivalent required.

TypeScript, Go, Python, Claude Code, Cursor, AWS, Docker, ECS, EKS, PostgreSQL, REST, gRPC, RabbitMQ, SQS, Kafka, React, OPA/Rego

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2mo

Senior Backend Developer, Data Platform

Reston, Virginia, United States

$137k-$200k/yr HybridFull Time

Vantor

Vantor: Providing AI-powered spatial intelligence and high-resolution Earth observation.

10+ YOE10+ years software engineering; strong Python; backend systems; PostgreSQL; Elasticsearch; AWS; TS/SCI with CI polygraph; Bachelor's in CS/related field; strong testing, CI/CD, and system design.

Python, PostgreSQL, Elasticsearch, AWS, S3, RDS, OpenShift, Helm, Docker, GitLab CI

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Senior Backend Engineer

Columbia, Maryland, United States

$100k-$120k/yr HybridFull Time

Quidient

Quidient: Develops AI for 3D scene reconstruction and virtualization.

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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1mo

Senior Backend API Engineer

Linthicum, Maryland, United States

OnsiteFull Time

Quevera

Quevera: Software engineering and cloud solutions for government and defense.

7+ YOEActive TS/SCI with polygraph required; 7+ years backend development experience with Python, RESTful APIs, Django/Flask, Docker, MariaDB/MongoDB; experience with Git, Jira, Confluence; strong troubleshooting and communication skills.

Python, Django, Flask, MariaDB, MongoDB, JSON, XML, Docker, Git, Jira, Confluence, AWS

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1mo

Sr Backend Developer

Herndon, Virginia, United States

RemoteFull Time

BDR Solutions

BDR Solutions: Provider of IT, engineering, and consulting for federal agencies.

7+ YOEBachelor's degree, U.S. citizenship with Public Trust eligibility, 7+ years back-end development (3+ years senior/lead), AWS/Kubernetes experience, CI/CD (Jenkins/GitHub Actions), and tools such as Git, SonarQube, NexusIQ, Selenium, AppDynamics.

AWS, Kubernetes, Jenkins, GitHub Actions, SonarQube, NexusIQ, Selenium, AppDynamics, Git, NIST 800-53, FISMA, FedRAMP, IRS Publication 4812

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2w

Senior Backend Engineer - Java

United States or Tampa or Boston or Atlanta or New York City or Columbus or Chicago or Philadelphia or Raleigh or Charlotte or Minneapolis or Dallas or Washington D.C. or Austin or Miami or Newark

$152k-$194k/yr RemoteFull Time

Real

RealNasdaq: REAX: Technology-driven brokerage offering residential real estate and title services.

8+ YOE8+ years experience with Java/Spring Boot, JPA/Hibernate, relational databases; experience designing event-driven microservices, strong testing practices, AI-assisted development familiarity, BA/BS or equivalent.

Java 17, Java 21, Spring Boot 3.x, JPA/Hibernate 6, Postgres, Kafka, DynamoDB, Redis, OpenSearch, AWS, Docker, Kubernetes, Datadog, ArgoCD, TeamCity, Claude Code, Cursor, Codex, Model Context Protocol (MCP), GitHub, SonarQube

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1mo

Senior Backend Developer, Data Platform

Reston, Virginia, United States

$137k-$200k/yr HybridFull Time

Maxar Intelligence

Maxar Intelligence: Providing satellite imagery and geospatial intelligence for global security.

10+ YOEU.S. citizenship and active TS/SCI with CI polygraph required. 10+ years backend engineering experience, strong Python, PostgreSQL, Elasticsearch, AWS (S3, RDS), CI/CD, distributed systems, and bachelor's degree in CS or related field.

Python, PostgreSQL, Elasticsearch, AWS, S3, RDS, GitLab, GitLab CI, OpenShift, Helm, Docker, CI/CD

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Backend Software Engineer

Annapolis Junction, Maryland, United States

OnsiteFull Time

Set of X

Set of X: Provides specialized engineering services for U.S. national security missions.

12+ YOESenior backend developer with Java Spring Boot microservice experience, familiarity with SQL/NoSQL databases, containerization (Docker, Kubernetes, Rancher), CI/CD (GitLab CI, Jenkins), Git, Atlassian tools, automated testing, and TS/SCI clearance with polygraph.

Java, Spring Boot, PostGres, MySQL, Elasticsearch, MongoDB, GitLab CI, Jenkins, Git, Jira, Confluence, Docker, Kubernetes, Rancher

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2mo

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2mo

Backend Engineer

Tysons Corner, Virginia, United States

HybridFull Time

Pansophic Learning

Pansophic Learning: Provides global K-12 education and digital learning solutions.

10+ YOE10+ years software development; 5+ years Node.js/Express; expert JavaScript/TypeScript; REST APIs; SQL (PostgreSQL); NoSQL; AWS; Unix/Linux; strong problem solving; collaboration; background checks.

Node.js, Express, JavaScript, TypeScript, REST APIs, PostgreSQL, MongoDB, DynamoDB, AWS, Lambda, ECS, EC2, RDS, S3, API Gateway, Git, Unix/Linux, Docker, Docker Compose, AWS CDK

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3mo

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3mo

Senior Back End Developer

Lackland AFB or Fort Meade

OnsiteFull Time

Titan Technologies

Titan Technologies: Provides IT solutions and services to government agencies.

10+ YOEDoD TS clearance required; TS/SCI preferred; 10+ years software development; 5+ years backend web development; 10 years relational databases and RESTful APIs; 5 years Python and PostgreSQL; 5 years Jira; 5 years web testing; 5 years leading software programs; 3 years AWS, Kubernetes, RedHat Linux; 5 years with five of: PostgreSQL, RDS, Exodus, Pyth...

Python, PostgreSQL, Docker, Ansible, Terraform, AWS, Kubernetes, OpenStack, Java, Puppet, Chef, Maven, OpenJDK, REST APIs, Git

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1mo

Java Backend Developer Senior

Ashburn, Virginia, United States

OnsiteFull Time

SAIC

SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.

9+ YOEBachelor's in CS or related field; 9+ years Java development; JavaEE, Spring, Spring Boot; AWS, Docker, Kubernetes; Kafka/SQS/Kinesis; NoSQL; REST/GraphQL; CI/CD tools; on-site Ashburn, VA; US citizenship with CBP background.

Java, JavaEE, Spring, Spring Boot, AWS, Docker, Kubernetes, Kafka, SQS, Kinesis, NoSQL, MongoDB, DocumentDB, Cassandra, XML, JSON, Unix/Linux, JPA/Hibernate, REST, GraphQL, Jenkins, Maven, Gitlab, Jira, Dynatrace, Harness

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2w

Senior Backend Engineer - Lodging and Cars

United States or Atlanta or Austin or Boston or Washington DC or Seattle or Houston or Raleigh or Dallas

RemoteFull Time

Hopper

Hopper: Global travel marketplace and financial technology service provider.

Senior individual contributor with strong Scala or JVM language skills, microservices and distributed systems experience, familiarity with gRPC/PubSub/REST integrations, and ability to own end-to-end technical implementations.

Scala, Java, Kotlin, gRPC, Pub/Sub, REST

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1w

Backend / Integration Engineer

Washington, District of Columbia, United States

$75-$80/hr HybridFull Time

Innodata

InnodataNASDAQ: INOD: A global providing AI data engineering and services.

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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Mid-Level Backend Developer (AWS)

Washington, District of Columbia, United States

$72k-$115k/yr HybridFull Time

Dev Technology Group

Dev Technology Group: Provides information technology services to federal government agencies.

5+ YOEBachelor's degree, 5+ years development experience, 3+ years with JavaScript/React, 3+ years Node.js backend, 2+ years AWS, SQL experience, strong problem solving and communication skills; US citizenship and ability to obtain DHS Public Trust.

React, React Native, JavaScript, TypeScript, Node.js, AWS, AWS Lambda, DynamoDB, SQL, RESTful APIs, Git, Jenkins

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1mo

Java Backend Developer Senior

Ashburn, Virginia, United States

OnsiteFull Time

SAIC

SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.

9+ YOEBachelor's degree in computer science or related field; 9+ years Java experience; strong Java/JEE, Spring, Spring Boot; experience with Docker/Kubernetes, AWS; SQL/NoSQL, REST/GraphQL; CI/CD tools; Agile familiarity; US citizenship and public trust eligibility.

Java, JavaEE, Spring, Spring Boot, Docker, Kubernetes, AWS, WebLogic, Maven, Artifactory, Jenkins, GitLab, Jira, JPA/Hibernate, SQL, Oracle, NoSQL, Kafka, SQS, Kinesis, XML, JSON, GraphQL, Unix/Linux

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2mo

Senior Backend Engineer (Python) - Content Understanding

San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Miami or New York City or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Washington, D.C. or Ottawa or Toronto or Vancouver or Mexico City

$120k-$228k/yr HybridFull Time

Scribd

Scribd: Subscription-based digital library for e-books, audiobooks, and documents.

7+ YOE7+ years software engineering; Python 5+ years; distributed systems; AWS; Terraform; leadership; bachelor’s in CS.

Python, Scala, Airflow, Spark, Databricks, Terraform, AWS, SQS, SNS, CloudWatch, Datadog

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1mo

Backend Developer (TS/SCI Required)

Alexandria, Virginia, United States

$150k-$190k/yr OnsiteFull Time

Accrete AI

Accrete AI: AI agents that automate complex decision-making through knowledge engines.

10+ YOE10+ years software development; 5+ years as software architect; TS/SCI with counterintelligence polygraph; Bachelor in CS; cloud experience (AWS/Azure/Google Cloud); Python; Go/Rust/Java; knowledge of auth, caching, and distributed systems.

Python, Go, Rust, C/C++, Java, Kubernetes, LDAP, SAML, OAuth, JWT, AWS, Azure, Google Cloud

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3mo

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3mo

Senior Back-End Developer - United States

San Antonio or Baltimore or United States

RemoteFull Time

Maximus

MaximusNYSE: MMS: Provides government health and human services program administration.

10+ YOE5+ MgmtActive Top Secret/SCI clearance, bachelor’s degree in a related field, 10+ years experience, 5+ years back-end development with Python and PostgreSQL, experience with RESTful APIs, AWS, Kubernetes, RedHat Linux, CI/CD, DevSecOps, and related toolchains.

Python, PostgreSQL, Jira, AWS Infrastructure, Kubernetes, RedHat Linux, BASH, Spring, Ansible, JUnit5, Nexus Repository, Maven, RESTful API, DevSecOps, microservices, containers, CI/CD, Agile Test-Driven development

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