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Ruby Rails Jobs in Boulder, CO (NOW HIRING)

Rapid7Proplusdemo

Fullstack Engineer

Denver, CO · On-site

Software Engineer responsibilities include gathering user requirements, defining system functionality and writing code in various languages, like Java, Ruby on Rails or .NET programming languages (e ...

AppFolio

Sr Software Engineer - Accounting

Denver, CO · On-site +1

$126.10K - $166.20K/yr

Knowledge of Ruby on Rails and experience working with a language like Ruby, Java, or Python. * Experience with some areas of our tech, like Ruby on Rails, React, Redux, AWS, and SOA. * Familiarity ...

AppFolio

Sr. Software Engineer - Leasing

Denver, CO · On-site

Develop scalable, robust, and performant solutions using our core stack (Ruby on Rails, TypeScript, GraphQL, React) to solve complex business problems. * Mentorship: Act as a cross-functional force ...

Artech Information System LLC

DevOps Engineer

Denver, CO

$54.25 - $74.25/hr

PHP, RoR, Python, Java, Groovy, etc.) Cassandra Database Administration Familiarity with SOA, SOLR, Splunk, Spark, Nagios, Docker Skills Requirements: Strong verbal and written communication ...

Baker

Senior Full Stack Developer (Node.js)

Denver, CO · On-site

$100K - $150K/yr

Competency in other coding languages such as Javascript, PHP, Python, Java, RoR, etc * In-depth knowledge of AWS service as ElasticSearch, ElasticCache, Lambda, API Gateway, etc * Past experience in ...

BAE Systems

Eng Sr - SW

Westminster, CO · On-site

$97.01K - $164.91K/yr

Examples include Ruby on Rails, Knockout, Vue, NodeJS, JavaScript, Keycloak, Redis, Traefix, and Minio. * Experience working with OpenC3 COSMOS as a test executive and creating custom Ruby based ...

Baker

Senior Full Stack Developer (Node.js)

Denver, CO

$100K - $150K/yr

Competency in other coding languages such as Javascript, PHP, Python, Java, RoR, etc * In-depth knowledge of AWS service as ElasticSearch, ElasticCache, Lambda, API Gateway, etc * Past experience in ...

Rubix Recruiting

Build Engineer

Broomfield, CO · On-site

NET Framework, JavaScript, Python or Ruby on Rails. * Writing build and test automation scripts. * Implementing gated check-ins, and other advanced continuous integration patterns.

BAE Systems

Eng II - SW

Broomfield, CO · On-site

$79.37K - $134.92K/yr

Web and REST service development using Spring, Jersey, Flask, CherryPy, or Ruby on Rails * Front-end and UX development using JavaScript, Angular, React, JavaFX, Python, or Qt * Back-end development ...

BAE Systems

Eng Sr - SW

Westminster, CO · On-site

$97.01K - $164.91K/yr

Examples include Ruby on Rails, Knockout, Vue, NodeJS, JavaScript, Keycloak, Redis, Traefix, and Minio. * Experience working with OpenC3 COSMOS as a test executive and creating custom Ruby based ...

BAE Systems

Eng II - SW

Broomfield, CO · On-site

$79.37K - $134.92K/yr

Web and REST service development using Spring, Jersey, Flask, CherryPy, or Ruby on Rails. * Front-end and UX development using JavaScript, Angular, React, JavaFX, Python, or Qt. * Back-end ...

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How much do ruby rails jobs pay per year?

As of Jun 1, 2026, the average yearly pay for ruby rails in Boulder, CO is $126,644.00, according to ZipRecruiter salary data. Most workers in this role earn between $106,300.00 and $145,700.00 per year, depending on experience, location, and employer.

What is a Ruby Rails job?

A Ruby Rails job involves developing web applications using the Ruby programming language and the Ruby on Rails framework. Developers in this role build, maintain, and optimize back-end logic, databases, and APIs to ensure smooth functionality. They often collaborate with front-end developers, designers, and product managers to create scalable and efficient web applications. Strong knowledge of MVC architecture, database management, and version control systems like Git is essential for success in this role.

What are the key skills and qualifications needed to thrive in the Ruby Rails position, and why are they important?

To thrive as a Ruby on Rails Developer, you need a solid understanding of Ruby programming, the Rails framework, RESTful APIs, and database management, often supported by a degree in computer science or related experience. Familiarity with version control systems like Git, cloud platforms (such as AWS or Heroku), and testing frameworks (RSpec, Capybara) is typically expected. Strong problem-solving abilities, effective communication, and teamwork set standout candidates apart in collaborative development environments. Mastery of these skills ensures efficient, maintainable code and effective collaboration in dynamic software engineering teams.

What are the typical responsibilities of a Ruby on Rails Developer during a project lifecycle?

Ruby on Rails Developers are usually involved in all phases of the software development lifecycle, including requirements analysis, designing and implementing new features, writing automated tests, and debugging. They often participate in code reviews, work closely with product managers, UX/UI designers, and other developers, and contribute to continuous deployment and integration workflows. Collaboration and proactive communication are crucial, as Rails projects often involve rapid iteration and the need to deliver robust, scalable web applications. Being adaptable and comfortable working in Agile or Scrum environments will help you succeed and grow in this role.
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Ruby Rails jobs near you
Infographic showing various Ruby Rails job openings in Boulder, CO as of May 2026, with employment types broken down into 84% Full Time, 8% Part Time, 1% Temporary, and 7% Contract. Highlights an 82% Physical, 4% Hybrid, and 14% Remote job distribution, with an average salary of $126,644 per year, or $60.9 per hour.
Staff Software Engineering Manager

Staff Software Engineering Manager

CACI International, Inc.

Aurora, CO • On-site

Full-time

Medical, Retirement, PTO

Posted 26 days ago

Job description

Job Title: Staff Software Engineering Manager
Job Category: Engineering
Time Type: Full time
Minimum Clearance Required to Start: TS/SCI
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Local
Anticipated Posting End: 6/20/2026
The Opportunity:
This position is for a Staff Software Engineering Manager. We are seeking a talented and motivated Software Engineering Manager to join our growing team. This is a unique player/coach role designed for an experienced software engineer who is passionate about both building great software and leading people. You will be responsible for managing and mentoring a team of skilled software engineers while also actively contributing technically to the design, development, testing, and deployment of our software products. You'll split your time effectively between guiding your team's success and rolling up your sleeves to write code, solve complex technical challenges, and contribute directly to our software ecosystem.
Responsibilities:
  • Management & Leadership (Approx. 25% on average)
  • Lead & Mentor: Manage, coach, and mentor a team of software engineers, fostering their technical and professional growth, by providing career advice and helping with program technical guidance. Additionally, you will work with the greater software engineering group to cultivate a positive, collaborative, inclusive, and high-performing team that is focused on bringing modern software development mechanism to all ARKA programs
  • Performance Management: Conduct regular 1:1 bi-weekly meetings with your team, provide feedback on both technical and non-technical topics, assist with setting clear goals, and manage performance reviews for your direct reports
  • Collaboration: Work closely with software engineering organization and other engineering program teams to align priorities, define requirements, and ensure successful project delivery across programs
  • Project Oversight: Help manage project priorities, timelines, and deliverables for your team, identifying and removing roadblocks
  • Hiring & Onboarding: Participate in the recruitment, interviewing, onboarding, and retention of engineering talent for your team and the broader organization Additionally works closely with engineering leadership to align current and new staff skillsets with program needs over time
  • Hands-on Development: Actively participate in the software development lifecycle, contributing high-quality, well-tested, and maintainable code to key projects using our tech stack up to and including
    • Proven proficiency in one or more modern programming language such as Python, Java, C#, Go
    • Experience with the development and deployment of software applications to cloud environments such as AWS including the integration with managed services provided by the cloud provider
  • Technical Design & Architecture: Contribute to technical design discussions, architectural decisions, and long-term technical strategy
  • Code Quality: Participate actively in code reviews, ensuring adherence to coding standards, best practices, and high-quality engineering principles
  • Stay Current and Mentor: Keep abreast of modern technologies, tools, and development practices, advocating for improvements where appropriate. Leverage this continuous learning to mentor and provide technical direction to your software team

Qualifications:
Required:
  • Bachelor's degree in computer science, Engineering, or a related field
  • 3+ years of experience in a formal or informal leadership capacity (e.g., Tech Lead, Team Lead, mentoring junior engineers, project leadership)
  • 8+ years of professional software development experience, delivering complex, scalable applications
  • Solid experience developing backend services and APIs using at least one common language and framework (e.g., Node.js/Express/NestJS, Python/Django/Flask/FastAPI, Java/Spring Boot/Quarkus, C#/.NET Core, Ruby/Rails, Go/Gin)
  • Experience designing and interacting with relational databases (e.g., PostgreSQL, MySQL) using SQL and familiarity with ORMs/query builders
  • Familiarity with core concepts and services of at least one major cloud provider (AWS, Azure, GCP)
  • Strong understanding of software development principles, data structures, algorithms, and API design (especially REST)
  • Experience or familiarity with various database concepts such as relational structure as well as NoSQL structure concepts in tools such as PostgreSQL, MongoDB, Redis
  • Solid understanding of software engineering principles, data structures, algorithms, and system design
  • Experience with modern software development methodologies (Agile, Scrum, Kanban)
  • Experience with version control systems such as Git and the associated tooling to for modern software version control
  • Experience with CI/CD pipeline development, testing, and deployment of software application to cloud platforms such as AWS
  • Excellent communication, interpersonal, and collaboration skills
  • Strong problem-solving and analytical abilities
  • A genuine passion for both technology and people leadership
  • Ability to effectively balance management responsibilities with individual technical contributions

Desired:
  • Experience directly managing software engineers, including performance management cycles
  • Experience working in a modern software company with experience in the execution of government development programs
  • Experience contributing to architectural decisions

What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.
Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
The proposed salary range for this position is:
$108,400 - 227,500 USD
CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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