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

Mentor junior developers and provide technical guidance to the team (as needed). * Continuous Improvement: Stay up to date with the latest Ruby on Rails trends, tools, and industry best practices.

Ruby on Rails Engineer

Towson, MD ยท Remote

$100K - $120K/yr

Mentor junior developers and provide technical guidance to the team (as needed). * Continuous Improvement: Stay up to date with the latest Ruby on Rails trends, tools, and industry best practices.

Position Details Job Title: Jr. Web Developer Job Location: Columbia, MD Job Duration: 6+ Months ... Strong understanding on Ruby on RaIls. Experience working in a fast paced, work-on-your-own ...

Professional experience in Ruby on Rails and/or Phoenix/Elixir, and a motivation to learn and ... Junior Developer: $60,000 to $90,000 * Mid Developer: $85,000 to $115,000 * Senior Developer: $110 ...

Professional experience in Ruby on Rails and/or Phoenix/Elixir, and a motivation to learn and ... Junior Developer: $60,000 to $90,000 * Mid Developer: $85,000 to $115,000 * Senior Developer: $110 ...

ResponsibilitiesWrite concise, maintainable, and well-tested code using Ruby on Rails and/or ... Junior Developer: $60,000 to $90,000Mid Developer: $85,000 to $115,000Senior Developer: $110,000 to ...

METRO, Light Rail Vehicles, High-Speed Trains, Commuter Rail and Monorail Vehicles for the North ... Entering Junior Year Note: The anticipated wage scale for candidates who will work in Maryland, New ...

Rail Project Engineer

Baltimore, MD ยท On-site

$95.99K - $187.68K/yr

May mentor, train and review work of junior engineer staff and provide constructive feedback. As a member of the team, you will contribute to the successful project delivery for a diverse range of ...

May mentor, train and review work of junior engineer staff and provide constructive feedback. As a member of the team, you will contribute to the successful project delivery for a diverse range of ...

May mentor, train and review work of junior engineer staff and provide constructive feedback. As a member of the team, you will contribute to the successful project delivery for a diverse range of ...

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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 Jun 3, 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 are the key skills and qualifications needed to thrive as a Junior Rails Developer, and why are they important?

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 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 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 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 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:

Ruby on Rails Engineer

Archesys Inc

Towson, MD โ€ข Remote

Other

Medical, Dental, Vision, Retirement, PTO

Posted 15 days ago


Job description

Location:ย This is a remote position.

Residency Requirement:ย Candidatesย MUST have lived in the U.S. for at least 3 of the past 5ย years and be authorized to work in the U.S. (Citizen, Permanent Resident, or EAD).ย 

Sponsorship:ย This position does not offer any type of sponsorship. Candidates must already be authorized to work in the U.S. (e.g., Citizen, Permanent Resident, or EAD).ย 

Clearance:ย Public Trust Clearance (or ability to obtain)ย 

Archesys is a technology firm specializing in innovative digital solutions and services for clients across various industries. We pride ourselves on our cutting-edge technologies, exceptional customer service, and collaborative work environment.

We are seeking a highly skilled and motivated Backend-Leaning Ruby on Rails Engineer to join our Financial Data Experience Team. In this critical role, you will be instrumental in building the foundational payment and accounting integrations for a greenfield Rails application. Your work will directly support crucial financial workflows, including employer premium payments via ACH, refunds, and beneficiary payments (ACH/check), by integrating with bank and accounting platforms (like NetSuite).

This role demands a proactive problem-solver with a strong commitment to clean Object-Oriented Programming (OOP) principles and high code quality. The ideal candidate thrives in a collaborative, fast-paced environment and has significant experience building robust, maintainable, and well-tested back-end functionality, especially complex data integrations.

This is a fully remote, full-time position.

Roles and Responsibilities

Key Responsibilities:

  • Financial Data Integration:ย Design, build, and maintain scalable, secure, and well-tested backend integrations within the Rails application with external financial systems, including a bank and an accounting platform (e.g., NetSuite).
  • Payment Workflow Development:ย Establish foundational back-end patterns for all payment workflows, including processing employer premium payments via ACH, managing refunds for overpayments, and handling ACH and check payments for beneficiaries.
  • Code Quality & Standards:ย Write clean, maintainable, and efficient code while following OOP, DRY, and SOLID principles. Actively participate in code reviews, providing and receiving strong, thoughtful feedback to uphold high code and maintainability standards.
  • System Foundation:ย As this is a greenfield application, establish foundational patterns for all backend payment workflows and the flow of data into the accounting platform.
  • Full-Stack Contribution:ย Contribute to the full-stack development of accessible and maintainable features within the application, with a strong focus on the backend.
  • Agile Collaboration:ย Collaborate cross-functionally with engineers, designers, and product managers in an agile environment to refine requirements and deliver value for end-users.
  • Performance:ย Optimize application and integration performance to ensure seamless and reliable operation.
  • Mentorship & Guidance:ย Mentor junior developers and provide technical guidance to the team (as needed).
  • Continuous Improvement:ย Stay up to date with the latest Ruby on Rails trends, tools, and industry best practices.

Collaboration and Communication

Stakeholder Communication:

  • Foster open communication with stakeholders, providing regular updates on project status and milestones.
  • Act as one of the point of contact between clients, stakeholders, and development teams.
  • Communicate regularly with stakeholders, including product managers, executives, and customers, to keep them informed of progress and address any concerns.

Cross-Functional Collaboration:

  • Collaborate with various departments to ensure the seamless integration of technologies and solutions.
  • Facilitate problem-solving sessions to address complex challenges and foster innovation.

Qualifications and Skills:

Educational Background:ย Bachelor's degree in Computer Science, Information Technology, Engineering or a related field. A Master's degree will be considered a plus.

Experience:

  • Significant Rails Backend Experience (5+ years):ย Strong backend-leaning experience with Ruby on Rails in a production environment.
  • Data Integration Expertise:ย Significant experience building conventional, maintainable, well-tested, and extensible data integrations and back-end functionality in Ruby on Rails.
  • Financial/Accounting Systems:ย Experience building integrations with financial and accounting systems (direct experience with NetSuite is a significant plus).
  • Payment Processing:ย Experience working with ACH payments is a significant plus.
  • OOP Commitment:ย A strong commitment to and demonstrated practice of solid Object-Oriented Programming (OOP) principles.
  • Testing:ย Ability to write unit tests and integration tests using RSpec or Minitest.
  • Architecture:ย Strong understanding of MVC architecture and RESTful web services.
  • Database:ย Experience working with relational databases like PostgreSQL or MySQL, and ActiveRecord ORM.
  • Version Control:ย Proficient with version control systems (Git/GitHub).
  • Agile Proficiency:ย Proficient with agile methodologies (Scrum, Kanban) and tools such as JIRA and Confluence.
  • Collaboration:ย Excellent communication, collaboration, and strong technical judgment skills.

Technological Proficiency:

  • Experience with cloud computing platforms such as AWS.
  • Familiarity with modern programming languages and web technologies.
  • Familiarity with agile tools such as Jira, Slack, and Confluence.
  • Previous experience in healthcare, finance, or government sectors is advantageous.
  • Experience with Docker, Kubernetes, or other containerization tools.
  • Familiarity with Redis, Sidekiq, or background job processing.
  • Exposure to microservices architecture and distributed systems.
  • Experience working in a DevOps culture and with monitoring tools like New Relic or Datadog.
  • Knowledge of GraphQL and API-first development.


Personal Attributes:

  • Strong leadership qualities, with the ability to collaborate effectively across cross-functional teams.
  • Forward-thinking with a keen eye for identifying opportunities for innovation and improvement.
  • Detail-oriented with a commitment to maintaining high standards of quality and efficiency.

Additional Requirements:

  • A willingness to continually learn and adapt to the evolving technology landscape.
  • Ability to work in a fast-paced environment and manage multiple projects simultaneously.

All work must be conducted within the U.S., excluding U.S. territories. Some federal contracts require U.S. citizenship to be eligible for employment.

You must be legally authorized to work in the U.S. now and in the future without sponsorship.

As the US Government is our clientele, you may be required to obtain a public trust or security clearance.

Some of our available roles are on federal contracts that require a degree or additional years of experience as a substitute.

What We Offer:

  • Competitive salary and benefits package, including reimbursement planย  health, dental, and vision insurance, retirement plan, and generous paid time off.
  • Opportunity to work with a talented team of professionals on exciting and innovative projects.
  • Flexible work arrangements, including remote work options.
  • Continuous learning and development opportunities, including access to training resources and professional development programs.
  • A collaborative, inclusive work environment that values diversity and encourages growth.

Join us at Archesys and be part of a team dedicated to delivering cutting-edge cloud solutions for clients in the public sector. Your expertise and passion for technology will help us continue to innovate and grow. We look forward to welcoming you to our team and supporting your success as Ruby on Rails Engineer.

Archesysย participatesย in E-Verify. Upon hire, we will provide the federal government with your Form I-9 information to confirm that you are authorized to work in theย U.S.

Archesys is anย equal opportunityย employer committed to creating a diverse and inclusive workplace. We welcome applications from all qualified candidates, regardless of race, color, religion,ย sex.Work collaboratively with different departments to ensure seamless integration of technologies and solutions. Organize problem-solving sessions to tackle complex challenges and encourage innovation.