1mo
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Senior Ruby on Rails Engineer, (Senior 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
$121k-$140k/yr RemoteFull Time
5+ YOE5+ years Ruby on Rails experience, proficiency with frontend frameworks (React/JS/TS), RESTful APIs, Sidekiq, strong OO design, accessibility knowledge, ability to obtain Public Trust clearance, bachelor's degree or equivalent experience.
Ruby on Rails, React, JavaScript, TypeScript, HTML5, CSS3, Sidekiq, RESTful APIs, OAuth, SSO
2mo
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Senior Backend Engineer (Ruby on Rails/Python) - Content Foundations
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-$217k/yr HybridFull Time
7+ YOE7+ years software engineering; experience with ingestion pipelines, ETL, and content processing; proficient in Ruby, Python, or Go; AWS and distributed workflows; strong DB design; effective communicator.
Ruby, Python, Go, AWS, SQL, NoSQL, ETL, LLM
2mo
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Senior Principal Software Engineer – (Secret Clearance Preferred – Onsite Required)
Oakton, Virginia, United States
$162k-$219k/yr OnsiteFull Time
10+ YOESenior software engineer with 10+ years of related experience; strong C++, Linux, ETL, data warehouses; experience with NoSQL (MongoDB); proficient in Bash/Python/Ruby; on-site work; US citizenship; Secret clearance preferred.
C++, SQL, ETL, Bash, Python, Ruby, MongoDB, NoSQL, Linux
1mo
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Senior Software Engineer
United States or California or Colorado or Hawaii or Illinois or Maryland or Minnesota or New Jersey or New York or New York City or Vermont or Washington or Washington
$150k-$180k/yr RemoteFull Time
5+ YOE5+ years software development experience; deep expertise in software architecture, system design, scalability, cloud-native design, security; proficiency with Ruby on Rails, React, AWS, and PostgreSQL; strong communication and mentoring skills.
Ruby on Rails, React, AWS, PostgreSQL
2d
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Senior Flight Software Engineer
Laurel, Maryland, United States
$100k-$245k/yr OnsiteFull Time
5+ YOEBachelor's in CS/EE/CE or equivalent,5+ years software development,expertise in C and C++,scripting (Python/Ruby/PERL),Git,ability to obtain Top Secret/SCI clearance (US citizenship).
C, C++, Python, Ruby, PERL, Git, cFE, RTEMS, RT Linux, VxWorks, GitLab, Bamboo, Rust, Go, Docker, Podman, Kubernetes, TCP/IP, CCSDS, DTN
2w
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Senior Software Engineer
Baltimore, Maryland, United States
$140k-$160k/yr RemoteFull Time
5+ YOE5+ years software engineering experience, ownership of features from design to production, deep Ruby on Rails backend expertise, relational DB design, strong communication; React and Flutter experience preferred.
Ruby on Rails, React, Flutter, AWS, ECS, RDS, S3
2w
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Senior Software Engineer
Baltimore, Maryland, United States
$140k-$160k/yr RemoteFull Time
5+ YOE5+ years software engineering experience; strong Ruby on Rails backend skills; product-minded; experience with React and Flutter, relational databases, security and reliability (HIPAA/SOC 2); strong communication.
Ruby on Rails, React, Flutter, AWS, ECS, RDS, S3
1mo
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Senior Site Reliability Engineer
Tysons Corner, Virginia, United States
HybridFull Time
Deep SRE/DevOps experience with CI/CD, scripting (Ruby, Groovy, Bash, PowerShell, TypeScript, Python), AWS, config management (Chef/Puppet/Ansible), containerization (Docker, ECS, EKS, Kubernetes), observability tools, and incident response skills.
Ruby, Groovy, Bash, PowerShell, TypeScript, Python, AWS, Chef, Puppet, Ansible, Windows, Linux/Unix, Datadog, New Relic, Splunk, Docker, ECS, EKS, Kubernetes, Jenkins, MongoDB, Couchbase, Postgres, F5, Nexus, Artifactory, Claude Code, Claude
1mo
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Senior Lead Software Engineer, DevOps
McLean, Virginia, United States
$230k-$262k/yr OnsiteFull Time
6+ YOEBachelor's degree, 6+ years DevOps engineering, 4+ years cloud-native experience, 6+ years Unix/Linux administration, proficiency with Java/Python/SQL/Ruby/Go, Docker, Kubernetes, Ansible, Terraform, and AWS; leadership and mentoring experience.
Java, Python, SQL, Ruby, Go, Golang, JavaScript, Bash, Perl, Docker, Kubernetes, Ansible, Terraform, Amazon Web Services, Microsoft Azure, Google Cloud Platform, Unix, Linux, Splunk, Zabbix
1mo
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Senior Software Development Engineer - Shopping Graph
Mountain View or McLean or New York City or Tampa
$191k-$214k/yr OnsiteFull Time
6+ YOEBachelor's in CS or related, 6+ years backend engineering with API and distributed systems experience; 5+ years with Java, Ruby, Go, or Python; familiarity with OAuth 2.0/OpenID Connect/SAML and cloud/infra tooling.
Java, Ruby, Go, Python, RESTful APIs, AWS, GCP, Terraform, OAuth 2.0, OpenID Connect, SAML, Prometheus, Datadog, CI/CD
3w
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Application Developer
Annapolis Junction, Maryland, United States
$69k-$158k/yr OnsiteFull Time
6+ YOE6+ years Java (Spring Boot), 5+ years system design/development/integration, 2+ years Python, 1+ year Ruby, Linux experience, TS/SCI clearance with polygraph, Bachelor's degree.
Java, Spring Boot, Python, Ruby, Linux, JMS, Jenkins, Bitbucket, Subversion, Git, Maven
4d
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Senior Software Development Engineer, DevOps (US Federal)
Reston or Washington or Maryland or Virginia
$164k-$246k/yr HybridFull Time
5+ YOEUS citizen able to obtain/maintain TS/SCI clearance;5+ years with AWS and Google Cloud Platform;5+ years Python or Ruby;5+ years SQL/MySQL;experience with Docker,Kubernetes,Terraform,CloudFormation,CI tools,Linux and shell scripting.
AWS, Google Cloud Platform, Python, Ruby, SQL, MySQL, Docker, Kubernetes, Serverless (Lambda), CloudFormation, Terraform, Ansible, Chef, Jenkins, TeamCity, Bamboo, Artifactory, Linux, Shell Scripting
2w
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Senior DevOps Automation Engineer
Arlington or United States
$120k-$173k/yr HybridFull Time
3+ YOE3+ years DevOps/automation/cloud experience; proficient in Python/Ruby/Go/Node.js/C#; CI/CD, config management, containerization, AWS/Azure experience; strong communication and critical thinking.
Python, Ruby, Go, Node.js, C#, GitLab, Jenkins, Bamboo, CircleCI, TravisCI, Bash, PowerShell, Ansible, Chef, Puppet, Packer, AWS, Azure, Docker, Kubernetes, Docker Swarm, Elastic Container Service
2mo
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Senior Network Engineer
Chantilly, Virginia, United States
OnsiteFull Time
6+ YOETop Secret/SCI with Poly, Bachelor’s or Master’s in CS/CE or related field, 6+ years in systems design/engineering, AWS/cloud, Linux, DevOps, Agile, GitHub, strong independent work skills.
AWS, Linux, GitHub, Python, Java, Ruby on Rails, Ansible, Puppet, Chef, Cisco NSO, Azure, Git
3w
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Application Developer
Annapolis Junction, Maryland, United States
$69k-$158k/yr OnsiteFull Time
6+ YOE6+ years Java (Spring Boot), 5+ years software design/integration/testing, 2+ years Python, 1+ year Ruby, Linux experience, TS/SCI with polygraph, Bachelor's degree.
Java, Spring Boot, Python, Ruby, Linux, JMS, Jenkins, Bitbucket, Subversion, Git, Maven
2mo
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Senior DevOps Engineer
Columbia, Maryland, United States
$170k-$190k/yr OnsiteFull Time
5+ YOEBachelor’s degree in Engineering or Computer Science with 5+ years related DevOps experience; fluent with Git; strong Linux and Windows admin; experience with Jenkins/Bamboo, Docker, Kubernetes; cloud/PaaS experience; programming in Ruby, C, C++, Go, Python, or Java.
Git, Linux, Windows, Jenkins, Bamboo, Docker, Kubernetes, Ansible, Puppet, AWS, Gradle, Maven, ANT, Shell, Ruby, Python, Java, Redis, MySQL, Elasticsearch
1mo
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Staff Software Engineer
Washington or United States
RemoteFull Time
12+ YOE12+ years development experience; deep full‑stack expertise in Ruby, Python, or JavaScript/Node.js; architecture experience; MVC frameworks (Rails/Django); front-end (React/Vue.js); SQL databases; AWS/Heroku deployment; technical leadership and mentorship.
Ruby, Python, JavaScript, Node.js, Rails, Django, React, Vue.js, PostgreSQL, MySQL, Oracle, SQL, AWS, Heroku, RSpec
2w
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Applications Developer
Chantilly, Virginia, United States
OnsiteFull Time
Requires active polygraph clearance; demonstrated experience with ServiceNow, Cognos, IBM SPSS Statistics, Oracle SQL, JavaScript/jQuery/AJAX, HTML/CSS, Angular, .NET MVC, Ruby on Rails, cloud server management, accessibility standards, testing, and DevSecOps concepts.
ServiceNow, Cognos, IBM SPSS Statistics, Oracle SQL, TMI, JavaScript, jQuery, AJAX, HTML, CSS, Angular, Update Sets, ServicePortal, .NET MVC, Ruby on Rails, Linux, Windows, Tableau, Power BI
6d
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Senior Software Engineer
Hanover, Maryland, United States
OnsiteFull Time
14+ YOE14 years software engineering experience (or 18 without degree), bachelor\u0007s in CS or related (or substitution), active Top Secret/SCI with Full Scope Polygraph, strong software design and systems skills.
Java, C#, C++, JavaScript, Python, Scala, Ruby, Go, Eclipse, NetBeans, IntelliJ IDEA, PyCharm, Microsoft Visual Studio, Microsoft VS Code, Windows, Unix, Linux, macOS, JIRA, Confluence, GitHub, ServiceNow, Spring, Angular, Bootstrap, Oracle, MySQL, MongoDB, Maven, Jenkins, Docker, Kubernetes, Git, SVN, CVS, AWS, Azure, Google Cloud
1mo
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Senior Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
10+ YOEAbility to obtain government security clearance, 10+ years software engineering experience, mastery of modern software design and SDLC, strong troubleshooting and systems analysis skills.
CA-IDMS, Microsoft SQL Server, Oracle DBMS, C, C++, Java, Ruby on Rails, Visual Basic, SIMULA, IBM Rational Rose XDE, Apache Struts, HTML, JavaScript, LoadRunner