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Junior Rails Developer Jobs in Baltimore, MD (NOW HIRING)

Mentor junior team members to include temporary military support for major projects. Basic ... power rail/strip options, cold aisle/hot aisle containment, and standards for fire suppression ...

New

Mentor junior team members to include temporary military support for major projects. Basic ... power rail/strip options, cold aisle/hot aisle containment, and standards for fire suppression ...

New

Mentor junior team members to include temporary military support for major projects. Basic ... power rail/strip options, cold aisle/hot aisle containment, and standards for fire suppression ...

New

Mentor junior team members to include temporary military support for major projects. Basic ... power rail/strip options, cold aisle/hot aisle containment, and standards for fire suppression ...

New

... engineers, scientists, digital innovators, program and construction managers and other ... Mentor and provide guidance to junior inspectors as needed Qualifications Minimum Requirements:

... engineers, scientists, digital innovators, program and construction managers and other ... Mentor and provide guidance to junior inspectors as needed Qualifications Minimum Requirements:

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Junior Rails Developer information

See Baltimore, MD salary details

$23.8K

$88.4K

$136.6K

How much do junior rails developer jobs pay per year?

As of Aug 6, 2026, the average yearly pay for junior rails developer in Baltimore, MD is $88,406.00, according to ZipRecruiter salary data. Most workers in this role earn between $66,600.00 and $86,400.00 per year, depending on experience, location, and employer.

What types of projects and responsibilities can a junior Rails developer expect in their first year on the job?

As a Junior Rails Developer, you can expect to work on tasks such as fixing bugs, writing and maintaining tests, and implementing small features under the guidance of more experienced developers. You'll likely participate in code reviews, collaborate closely with product managers and designers, and be encouraged to learn best practices in coding and version control. The environment is typically supportive, with regular feedback and opportunities to ask questions, making it a great setting for professional growth. Over time, you may gradually take on more complex assignments and begin to contribute to architectural discussions.

What is the difference between Junior Rails Developer vs Ruby on Rails Developer?

AspectJunior Rails DeveloperRuby on Rails Developer
Experience LevelEntry-level, 0-2 yearsMid to senior level, 2+ years
ResponsibilitiesAssisting in development, learning codebaseDesigning, developing, maintaining Rails applications
Required SkillsBasic Ruby/Rails knowledge, eagerness to learnStrong Ruby/Rails skills, problem-solving
Work EnvironmentStartups, small teams, internshipsEstablished companies, tech firms, agencies

The main difference between a Junior Rails Developer and a Ruby on Rails Developer lies in experience and responsibilities. Junior Rails Developers are typically entry-level, focusing on learning and assisting with tasks, while Ruby on Rails Developers have more experience and handle complex development projects independently.

What does a junior Rails developer do?

A Junior Rails Developer is an entry-level software engineer who works with Ruby on Rails, a popular web development framework. Their responsibilities typically include writing and maintaining code, fixing bugs, collaborating with other developers, and learning best practices for web application development. Junior Rails Developers often assist in building features, performing tests, and ensuring applications run smoothly while gaining experience and mentorship from more senior team members.

What are the key skills and qualifications needed to thrive as a junior Rails developer?

To thrive as a Junior Rails Developer, you need a solid understanding of Ruby, Ruby on Rails framework, basic front-end languages (HTML, CSS, JavaScript), and a relevant degree or coding bootcamp experience. Familiarity with tools like Git, PostgreSQL or MySQL, and test frameworks such as RSpec is typically expected. Strong problem-solving skills, eagerness to learn, and effective communication help you collaborate within development teams and grow in the role. These skills are important because they enable you to build, maintain, and improve web applications efficiently while adapting to evolving project requirements.
What job categories do people searching Junior Rails Developer jobs in Baltimore, MD look for? The top searched job categories for Junior Rails Developer jobs in Baltimore, MD are:
Infographic showing various Junior Rails Developer job openings in Baltimore, MD as of July 2026, with employment types broken down into 87% Full Time, 2% Part Time, 1% Temporary, and 10% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $88,406 per year, or $42.5 per hour.

Data Center System Administrator

Leidos

Glenn Dale, MD • On-site

$73K - $132K/yr

Full-time

Medical, Retirement, PTO

Posted 3 days ago

New


Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 151 frontline employees who took The Breakroom Quiz

75th of 481 rated business services


Job description

Description

Looking for an opportunity to make an impact?

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

If this sounds like a mission you want to be a part of, keep reading!

The Digital Sector of Leidos is seeking a Data Center System Administrator to support data center operations. The System Administrator will rack and stack equipment, support upgrades and consolidations, ensure power is transferred if there is a power failure, and provide general data center system administrator support. They will support hybrid cloud-hosting alternatives.  This individual will work in a team environment to ensure mission needs are met and ensure functionality of capabilities of customers.
 
Primary Tasks:

  • Be able to work with and employ rack level redundancy techniques, rack standards, properties and selection criteria, and power rail/strip options, cold aisle/hot aisle containment, and standards for fire suppression, security and safety.
  • Support implementation, troubleshooting and maintenance of physical equipment to include servers, storage arrays, network switches etc. Rapidly distinguish isolated system problems vs data center-wide outages.  
  • Coordinate with customers and stakeholders to collect data, conduct analysis, develop, and implement solutions associated with incident tickets and requirements.
  • Develop solutions to complex technical issues.
  • Provide follow-up reports (technical findings, feedback, resolution steps taken) for root cause analysis, engineering technical assessment and process improvement initiatives.  
  • Support customer requirements in a 24/7/365 mission environment and be able to respond to after-hours emergency calls (power/cooling disruption).
  • Update operations and maintenance documentation for 24/7/365 personnel.    
  • Mentor junior team members to include temporary military support for major projects.

Basic Qualifications

  • Experience with interacting with customers to handle service inquiries and problems.
  • Experience working in a data center.
  • Knowledge of data center standards and best practices.
  • Knowledge of power infrastructure layout from generation to rack level, redundancy levels and techniques, rack standards, properties and selection criteria, and power rail/strip options, cold aisle/hot aisle containment, and standards for fire suppression, security and safety.
  • Experience with Tier 2 system administration to include connecting crash carts and configuring remote management interfaces to restore administrator remote access and following prescribed procedures to restore servers. 
  • Experience troubleshooting issues in a growing environment.
  • Time management skills.
  • Strong oral and written communications skills.
  • Track record of working effectively within a team and support to peers toward improved processes and results.
  • Experience with IT Service Management (ITSM) products such as ServiceNow.  
  • Experience mentoring others.

Certifications

  • Candidate must, at a minimum, meet DoDM 8140.03 (previously DoD 8570) – IT System Admin Intermediate certification requirements (Cloud+, GICSP, SSCP, Security+ CE, GSEC, or higher)

Education

  • Candidate must have a BS with 4 years of prior relevant experience or Masters with 2 years of prior relevant experience.  Additional years of experience may be considered in lieu of degree.

Clearance

  • Due to the nature of the government contracts we support, US Citizenship is required.
  • An active TS/SCI with Poly required for Position or TS/SCI and willingness to obtain and maintain a required specific polygraph.
     

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:August 3, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:Pay Range $73,450.00 - $132,775.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.


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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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