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Junior Ruby On Rails Developer Jobs in Denver, CO

Eng Sr - SW

Westminster, CO

$129K - $170K/yr

The Engineering, Science and Analysis (ESA) Strategic Capabilities Unit comprises the technical ... Examples include Ruby on Rails, Knockout, Vue, NodeJS, JavaScript, Keycloak, Redis, Traefix, and ...

Eng Sr - SW

Westminster, CO · On-site

$97K - $164K/yr

The Engineering, Science and Analysis (ESA) Strategic Capabilities Unit comprises the technical ... Examples include Ruby on Rails, Knockout, Vue, NodeJS, JavaScript, Keycloak, Redis, Traefix, and ...

Eng II - SW

Broomfield, CO

$136K - $182K/yr

The Engineering, Science and Analysis (ESA) Strategic Capabilities Unit comprises the technical ... Web and REST service development using Spring, Jersey, Flask, CherryPy, or Ruby on Rails ...

Eng II - SW

Broomfield, CO · On-site

$79K - $134K/yr

The Engineering, Science and Analysis (ESA) Strategic Capabilities Unit comprises the technical ... Web and REST service development using Spring, Jersey, Flask, CherryPy, or Ruby on Rails ...

Proficiency in Python and Ruby on Rails , with significant backend experience. * Experience in ... Experience in DevOps, CI/CD pipelines, and secure release management. * Background in security ...

Proficiency in Python and Ruby on Rails , with significant backend experience. * Experience in ... Experience in DevOps, CI/CD pipelines, and secure release management. * Background in security ...

Javascript, Ruby or PHP. Ultimately, you will ensure our web pages are up and running and cover ... Oversee junior web developers and evaluate their performance * Liaise with designers to decide on U ...

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Showing results 1-20

Junior Ruby On Rails Developer information

See Denver, CO salary details

$26.2K

$125.7K

$176.5K

How much do junior ruby on rails developer jobs pay per year?

As of Jun 15, 2026, the average yearly pay for junior ruby on rails developer in Denver, CO is $125,651.00, according to ZipRecruiter salary data. Most workers in this role earn between $105,500.00 and $144,600.00 per year, depending on experience, location, and employer.

What does a typical day look like for a Junior Ruby On Rails Developer?

As a Junior Ruby On Rails Developer, you'll generally spend your days building new features, fixing bugs, and writing tests under the guidance of more experienced engineers. You will regularly collaborate with other developers, product managers, and designers through pair programming, code reviews, and team meetings. Expect to dedicate a portion of your time to learning new best practices and tools, as ongoing education is key early in your career. The work environment is often collaborative and supportive, providing mentorship and feedback to help you grow your technical skills and confidence.

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

To thrive as a Junior Ruby On Rails Developer, you should have a foundational knowledge of Ruby, Rails framework, web development principles, and basic database design, often supported by a relevant technical degree or coding bootcamp experience. Familiarity with version control systems like Git, testing frameworks such as RSpec, and cloud platforms is highly valued in entry-level roles. Strong problem-solving abilities, a willingness to learn, and effective communication skills help juniors contribute positively to their teams. These competencies empower developers to adapt quickly, collaborate efficiently, and deliver functional web applications in a fast-evolving tech environment.

What is a Junior Ruby On Rails Developer job?

A Junior Ruby on Rails Developer is an entry-level software developer specializing in building web applications using the Ruby on Rails framework. They typically work under the guidance of senior developers, assisting in writing and maintaining code, debugging issues, and implementing new features. Juniors are expected to have a basic understanding of Ruby, Rails conventions, databases, and version control systems like Git. They often collaborate with teams to develop scalable and efficient applications while continuously learning industry best practices. This role serves as a foundation for advancing to more senior development positions.

What are popular job titles related to Junior Ruby On Rails Developer jobs in Denver, CO? For Junior Ruby On Rails Developer jobs in Denver, CO, the most frequently searched job titles are:
What job categories do people searching Junior Ruby On Rails Developer jobs in Denver, CO look for? The top searched job categories for Junior Ruby On Rails Developer jobs in Denver, CO are:
Infographic showing various Junior Ruby On Rails Developer job openings in Denver, CO as of June 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 67% In-person, and 33% Remote job distribution, with an average salary of $125,651 per year, or $60.4 per hour.
Engineer Senior - Digital Test Developer with Security Clearance

Engineer Senior - Digital Test Developer with Security Clearance

BAE Systems

Westminster, CO

$124K - $164K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 8 days ago


BAE Systems rating

8.5

Company rating: 8.5 out of 10

Based on 143 frontline employees who took The Breakroom Quiz

5th of 46 rated military and defense


Job description

Job Description The Electrical Solutions team is seeking a Senior Software Engineer to help develop a company-wide digital test procedure. Work with technical teams to develop the application end to end and help train the company on execution. The Engineering, Science and Analysis (ESA) Strategic Capabilities Unit comprises the technical talent and organizational leadership that enables the successful delivery of high-impact discriminating technologies for our customers' missions. Our collaborative, cross-functional teams are committed to innovation, integrity, continual learning and strong execution. What You'll Do: * Be a key member of technical teams to design, develop, integrate, and certify digital test procedure application.
* Participate in the following activities: requirements definition, analysis and decomposition, support system level architecture definition, and design/implement software
* Create professional software applications and scripts primarily in Python and Ruby with other languages as needed.
* Communicate technical, cost, and schedule status to program management and negotiate scope and resources to meet program goals.
* Collaborate with other disciplines to ensure digital test procedure application meets the end needs of the program.
* Participate in department activities to improve methods and processes
* Work under formal software development methodologies.
* Maintain a regular and predictable work schedule.
* Establish and maintain effective working relationships within the department, the Strategic Business Units, Strategic Capabilities Units and the Company. Interact appropriately with others in order to maintain a positive and productive work environment.
* Perform other duties as necessary. On-Site Work Environment: This position requires regular in-person engagement by working on-site three or more days each normally scheduled week in the primary work location. Travel and local commute between company campuses and other possible non-company locations may be required. Working Conditions: * Work is performed in an office, laboratory, production floor, or cleanroom, outdoors or remote research environment.
* May occasionally work in production work centers where use of protective equipment and gear is required.
* May access other facilities in various weather conditions. Required Education, Experience, & Skills * BS degree or higher in Engineering or a related technical field is required plus 4 or more years related experience. * Each higher-level degree, i.e., Master's Degree or Ph.D., may substitute for two years of experience. Related technical experience may be considered in lieu of education. Degree must be from a university, college, or school which is accredited by an agency recognized by the US Secretary of Education, US Department of Education. * Experience in full stack deployment/maintenance/operations of web/desktop apps.
* Experience in Back-end development, API design, and system architecture.
* Significant experience in front-end development and data modeling.
* Experience in CI/CD, shell scripting for regression, merge checks, tagging and release.
* Experience in SW testing unit/integration/end-to-end
* Experience working on full software lifecycle including ability to define requirements from an abstract system with minimal guidance. * Demonstrated ability to work across engineering disciplines and cross-functional teams.
* Self-starter, good interpersonal and communication skills, ability to work independently and on a team.
* Working knowledge of software quality principles.#LI-LB3
A security clearance or access with Polygraph is not required to be eligible for this position. However, the applicant must be willing and eligible for submission, depending on program requirements, after an offer is accepted and must be able to maintain the applicable clearance/access. Preferred Education, Experience, & Skills * TS/SCI or current SSBI.
* Proficiency in web frameworks, components, and technologies desired. 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 OpenC3 components. * Experience with a range of operating systems and scripting tools, including Linux, Windows, BASH, and PowerShell, with the ability to write simple scripts, automate tasks, and troubleshoot common issues.
* Experience with databases, both relational and NoSQL.
* Basic understanding of FPGA design and VHDL.
* Experience with the NI toolchain such as LabVIEW (including RT and FPGA) and Veristand.
* Experience using Python to integrate with hardware (COTS instrumentation, custom hardware, FPGA's, etc.) to test products under development.
* Experience configuring and interfacing to instrumentation across various protocols, including UART, GPIB, DAQmx, RIO, TCP-IP, USB, Spacewire, 1553, and other related technologies, desired.
* Experience with containerization technologies such as Docker or Podman, including developing software within containerized environments and creating/configuring containerized infrastructure.
* Hands-on experience with CI/CD pipeline development, including creating automated workflows, and integrating with version control systems.
* Experience with software security best practices. Examples include identifying/mitigating vulnerabilities through static code analysis, CVE analysis, implementing secure connections, and compliance with CMMC security principals. Pay Information
Full-Time Salary Range: $97008 - $164914 Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience. Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20+ hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics. About BAE Systems Space & Mission Systems BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Improving the future and protecting lives is an ambitious mission, but it's what we do at BAE Systems. Working here means using your passion and ingenuity where it counts - defending national security with breakthrough technology, superior products, and intelligence solutions. As you develop the latest technology and defend national security, you will continually hone your skills on a team-making a big impact on a global scale. At BAE Systems, you'll find a rewarding career that truly makes a difference. Headquartered in Boulder, Colorado, Space & Mission Systems is a leading provider of national defense and civil space applications, advanced remote sensing, scientific and tactical systems for government and commercial customers. We continually pioneer ways to innovate spacecraft, mission payloads, optical systems, and other defense and civil capabilities. Powered by endlessly curious people with an unwavering mission focus, we continually discover ways to enable our customers to perform beyond expectation and protect what matters most. This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified. Multiple positions may be available on this opening.

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