17 ruby developer jobs at 12 companies in Middletown, DE

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
1mo
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Ruby On Rails Developer
Chester, Pennsylvania, United States
HybridFull Time
Power Home Remodeling
Power Home Remodeling: Provides residential exterior home renovation and remodeling services.
2+ YOE2+ years full-stack development experience (Rails preferred), agile experience, automation/integration testing, strong communication and mentoring skills.
React, Bootstrap, GraphQL, Ruby, Python, Ruby on Rails, Rails, Java, MySQL, PostgreSQL, Scrum, Git, Docker, Kubernetes, Jenkins
3mo
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Ruby on Rails Engineer
Towson, Maryland, United States
$100k-$120k/yr RemoteFull Time
Archesys
Archesys: Provides digital strategy and cloud solutions for government agencies.
5+ YOE5+ years Rails backend experience; data integrations; financial/accounting systems (NetSuite a plus); ACH payments; OOP; testing; MVC/REST; PostgreSQL/MySQL; AWS; Docker/Kubernetes; Git; Agile; strong communication.
Ruby on Rails, Ruby, PostgreSQL, MySQL, ActiveRecord, AWS, Docker, Kubernetes, Redis, Sidekiq, GraphQL, API design, Git, RSpec, Minitest
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
Fearless
Fearless: Digital services firm delivering IT solutions for government agencies.
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
2w
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Ruby on Rails 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-$142k/yr RemoteFull Time
Fearless
Fearless: Digital services firm delivering IT solutions for government agencies.
2+ YOE2+ years Ruby on Rails full-stack experience, REST API design, JavaScript/React frontend, AWS (RDS, CloudWatch), CI/CD and Terraform, ability to obtain Public Trust clearance.
Ruby on Rails, JavaScript, React, AWS, CloudWatch, RDS, GitHub Actions, Terraform
1w
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Backend Software Developer
Wayne, Pennsylvania, United States
HybridFull Time
PowerPay
PowerPay: Digital lending platform for home improvement and healthcare loans.
Experience building backend services and APIs using Ruby/Rails, Python or NodeJS; familiarity with databases, integrations (SFTP/FTP, OAuth2, OIDC), security (TLS, SSH), Linux/Docker, testing and API tools.
Ruby, Ruby on Rails, Python, NodeJS, SFTP, FTP, OAuth2, OIDC, TLS, SSH, Postgresql, Mysql, MariaDB, rSpec, Postman, Linux, Docker, ReactJS, NewRelic, AWS, CI/CD
1w
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Senior Software Engineer
Baltimore, Maryland, United States
$140k-$160k/yr RemoteFull Time
Impruvon Health
Impruvon Health: Software and hardware for medication management in care settings.
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
1w
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Senior Software Engineer
Baltimore, Maryland, United States
$140k-$160k/yr RemoteFull Time
Impruvon Health
Impruvon Health: Automated medication management and clinical workflow platform for providers.
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
1mo
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JOIN OUR TEAM - Full-Stack Developer
Washington or Baltimore or United States
$89k-$110k/yr RemoteFull Time
Powerhouse Institute
Powerhouse Institute: Provides strategic IT and management consulting services to government agencies.
7+ YOE7+ years professional experience with 5+ years full‑stack development; proficiency with HTML, CSS, JavaScript, React/Angular/Vue, Node.js/Java/Python/.NET/PHP/Ruby/C#; DBs MySQL/PostgreSQL/MongoDB/Oracle; cloud (AWS/Azure/Google Cloud), Docker, Kubernetes, CI/CD; U.S. work authorization and Public Trust clearance.
HTML, CSS, JavaScript, React, Angular, Vue, Node.js, Python, Java, Ruby, .NET, PHP, C#, MySQL, PostgreSQL, MongoDB, Oracle, RESTful APIs, AWS, Azure, Google Cloud, Docker, Kubernetes, CI/CD
3mo
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Site Reliability Engineer (Senior or Staff), Atlas
New York City or Boston or Charlotte or Miami or New York City or Philadelphia or Raleigh or Washington
$127k-$249k/yr HybridFull Time
MongoDB
MongoDBNASDAQ: MDB: Cloud-based document database platform for software application development.
5+ YOE5+ years running critical systems at scale; multi-cloud experience; strong Linux; programming in Go/Ruby/Python; knowledge of HTTP/TLS/DNS; on-call rotation.
Linux, Go, Ruby, Python, HTTP, TLS, DNS, AWS, Azure, GCP
1w
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Sr. Backend Software Engineer (NodeJS)
United States or Minneapolis or Philadelphia or New Hartford or Austin or Champaign or Chicago
$140k-$160k/yr RemoteFull Time
PAR Technology
PAR TechnologyNYSE: PAR: Provides unified software and hardware for restaurant operations.
8+ YOEExpertise in Node.js/Typescript and PostgreSQL, 8+ years backend experience with distributed systems, GraphQL, TypeORM, Nest.js; familiarity with Kubernetes, message brokers, AWS, Terraform.
Typescript, NodeJS, Ruby, Rails, PostgreSQL, GraphQL, TypeORM, Nest.js, RabbitMQ, RMQ, React, AWS, Terraform, Helm, Kubernetes, EKS, Microsoft Teams
4d
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Penetration Tester - Cyber Engineer
Aberdeen Proving Ground, Maryland, United States
$90k-$190k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEActive Secret clearance, bachelor’s degree with 5 years relevant experience, professional penetration testing/threat-hunting experience, proficiency with common pentest tools and Linux, exploitation expertise.
nmap, Wireshark, Burp Suite, Nessus, Linux, Bash, Python, Perl, Ruby, Android
4d
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Penetration Tester - Cyber Engineer
Aberdeen Proving Ground, Maryland, United States
$90k-$190k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEActive Secret clearance, bachelor\u0002s degree with ~5 years relevant experience, professional penetration testing/threat-hunting, proficiency with nmap/Wireshark/Burp Suite/Nessus, strong Linux, networking and exploitation skills.
nmap, Wireshark, Burp Suite, Nessus, Linux, Bash, Python, Perl, Ruby, Android
4d
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Junior Penetration Tester - Cyber Engineer
Aberdeen Proving Ground, Maryland, United States
$76k-$156k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
3+ YOEActive Secret clearance, Bachelor's degree plus 3 years relevant experience, Linux, networking, virtualization and containerization familiarity, OWASP and penetration testing knowledge, experience with nmap/Wireshark/Burp Suite/Nessus, 1-2 years exploitation experience.
nmap, Wireshark, Burp Suite, Nessus, Bash, Python, Perl, Ruby
4d
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Junior Penetration Tester - Cyber Engineer
Aberdeen Proving Ground, Maryland, United States
$76k-$156k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
3+ YOEActive Secret clearance, Bachelor's degree plus 3 years relevant experience, Linux and networking knowledge, familiarity with OWASP and P/T standards, experience with nmap, Wireshark, Burp Suite, Nessus, and 1-2 years exploitation experience.
nmap, Wireshark, Burp Suite, Nessus, Bash, Python, Perl, Ruby
3mo
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Development Scheduler
Fairfield, New Jersey, United States
$100k-$115k/yr HybridFull Time
Phillip Jeffries
Phillip Jeffries: Manufactures and distributes artisanal textured wallcoverings for luxury spaces.
2+ YOEBachelor's degree in Computer Science or related field; 2-4 years software development/QA coordination; Agile/Scrum experience; ITIL ideal; strong coordination and communication; hybrid schedule in Fairfield, NJ.
Power Platform, PHP, Ruby on Rails, Angular
1mo
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Staff Scientist in Translational Bioinformatics
Philadelphia, Pennsylvania, United States
$101k-$129k/yr HybridFull Time
Children's Hospital of Philadelphia
Children's Hospital of Philadelphia: Comprehensive pediatric medical care and pediatric clinical research.
3+ YOEPhD preferred (Bachelor's required). Minimum 3 years applied bioinformatics/computational genomics experience; proficiency with R/Python, UNIX/Linux, high-dimensional human translational datasets, and multi-omic analysis; strong communication and collaboration skills.
R, Python, UNIX/LINUX, Python/Django, Perl, Scala, Ruby, PostgreSQL, MySQL, Oracle, UCSC Genome Browser, Bioconductor, ENCODE, NCBI databases, visiumHD, Xenium, GEM-Ex, O-Link, HPC
1mo
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Staff Software Engineering Manager
Aurora or King of Prussia
$99k-$207k/yr HybridFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
8+ YOE3+ MgmtTS/SCI required; bachelor’s in CS/Engineering; 8+ years software development, 3+ years leadership; proficiency with backend languages (Python, Java, C#, Go), cloud (AWS/Azure/GCP), relational and NoSQL databases, Git and CI/CD.
Python, Java, C#, Go, Node.js, Express, NestJS, Django, Flask, FastAPI, Spring Boot, Quarkus, .NET Core, Ruby/Rails, PostgreSQL, MySQL, MongoDB, Redis, SQL, ORMs, Git, CI/CD, AWS, Azure, GCP

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