1

Junior Rails Developer Jobs in Pennsylvania (NOW HIRING)

Senior Structural Engineer

Philadelphia, PA · On-site

$101K - $137K/yr

... junior staff Requirements * BS in Civil Engineering * PE License required (PA or NJ preferred) * A minimum of eight years of Structural Engineering experience with a focus on bridge design (rail ...

Senior Structural Engineer

Philadelphia, PA · On-site

$101K - $137K/yr

... junior staff Requirements * BS in Civil Engineering * PE License required (PA or NJ preferred) * A minimum of eight years of Structural Engineering experience with a focus on bridge design (rail ...

Senior Structural Engineer

Philadelphia, PA

$101K - $137K/yr

... junior staff Requirements * BS in Civil Engineering * PE License required (PA or NJ preferred) * A minimum of eight years of Structural Engineering experience with a focus on bridge design (rail ...

At Alstom, we build what millions depend on daily - rail transportation systems that can't afford ... Mentor junior developers, review their deliverables, and support their growth. * Support ...

At Alstom, we build what millions depend on daily - rail transportation systems that can't afford ... Mentor junior developers, review their deliverables, and support their growth. * Support ...

At Alstom, we build what millions depend on daily - rail transportation systems that can't afford ... Mentor junior developers, review their deliverables, and support their growth. * Support ...

Serve as part of a team overseeing junior engineers on mid- to large size projects. * Apply knowledge and understanding of rail design, rail operations and construction on or about a railroad ...

Serve as part of a team overseeing junior engineers on mid- to large size projects. * Apply knowledge and understanding of rail design, rail operations and construction on or about a railroad ...

Senior Signals Engineer

Philadelphia, PA

$105K - $144K/yr

... rail projects. Summary: * Provide technical leadership, mentorship, and engineering oversight to mid-level and junior engineers, designers, and CAD staff, including performing QA/QC reviews and ...

Showing results 21-40

Junior Rails Developer information

See Pennsylvania salary details

$24.1K

$89.2K

$137.8K

How much do junior rails developer jobs pay per year?

As of Aug 6, 2026, the average yearly pay for junior rails developer in Pennsylvania is $89,189.00, according to ZipRecruiter salary data. Most workers in this role earn between $67,200.00 and $87,200.00 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.
Infographic showing various Junior Rails Developer job openings in Pennsylvania as of August 2026, with employment types broken down into 79% Full Time, 3% Part Time, and 18% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $89,189 per year, or $42.9 per hour.

Track/Rail Designer - Engineer III

HNTB

Philadelphia, PA • On-site

Full-time

Posted 8 days ago


HNTB rating

9.2

Company rating: 9.2 out of 10

Based on 22 frontline employees who took The Breakroom Quiz


Job description

What We're Looking For

At HNTB, you can create a career that is meaningful to you while building communities that matter to all of us. For more than a century, we have been delivering solutions for some of the largest, most complex infrastructure projects across the country, including the Susquehanna River Bridge, Long Bridge, Bush and Gunpowder River Bridges, SEPTA Trolley Modifications, Brightline, and more. With our historic growth, it is an exciting time to join our team of employee-owners.
This opportunity entails being responsible for some or all of the following:
Production and modification of design calculations, technical reports, engineering plans and specifications. Consult with the project manager to perform research, development, calculations, design and delivery. Leverages technical knowledge and experience to address design related issues or concerns, working closely with the project manager through creative problem solving, interactions with clients and by completing tasks to meet the project schedule. Work with a multidiscipline staff to trouble shoot design and construction challenges. As a member of the team, you will contribute to the successful project delivery for a diverse range of projects for HNTB's clients. As part of a national rail team with a large local staff here in Philadelphia, you will get the opportunity to work on local and national projects aimed at transforming rail infrastructure around the country.
You will support transit and railroad projects at all stages from conceptual study and alternative analysis to final design and construction related services. Types of projects may include interlocking renewals, bridge replacements, new track construction, and station designs for Amtrak, SEPTA, PATCO, PATH, Pittsburgh Regional Transit, PennDOT and other national rail clients throughout the United States. Opportunities can include client interaction and marketing/proposal development. The Pennsylvania office had a diverse set of engineers at all levels and railroad disciplines allowing hands on learning from junior and senior staff for track, OCS, signals, power, structures, civil and more.
Candidates with passenger or freight rail experience are preferred, but willing to discuss a career with someone with Civil/Highway experience with knowledge of OpenRoads / InRoads / Civil3D that has a desire to pivot towards a career in Track / Rail design.

What You'll Do:

  • Completes assigned work within the schedule and number of hours provided.
  • Assist in the development of project specifications.
  • Responsible for development of discipline specific engineering project elements/deliverables such as reports, designs, and plans.
  • Aids in the coordination and productivity of project team members.
  • Provides technical guidance to less experienced engineering project team members.
  • Works closely with other disciplines and on multi-discipline projects.
  • Performs quality control reviews of discipline - specific engineering project elements/deliverables.
  • Assists with coordination and planning of schedules, hours, and distribution of work within discipline.
  • Performs other duties as assigned.

What You'll Need:

  • Bachelor's degree in Engineering and 4 years of relevant experience, or
  • Master's degree in Engineering and 3 year of relevant experience, or
  • PhD in Engineering and 2 years of relevant experience

What You'll Bring:

  • Strong communication skills to work with our team and the client.
  • Understands the impacts of decisions on technical design and work planning.
  • Exhibiting experience with OpenRail, MicroStation/PowerRail and/or AutoCad.
  • Understanding of track/railroad design.
  • Managing time, proactively forecasting, and communicating project development needs.

What We Prefer:

  • Engineer in Training (EIT) certification
  • Professional Engineer (PE) certification

Additional Information

Click here for benefits information: HNTB Total Rewards

Click here to learn more about Equal Opportunity Employer/Disability/Veteran

Visa sponsorship is available for this position.#CB #TransitAndRail

.

Locations:

King of Prussia, PA (Norristown), Philadelphia, PA (Pennsylvania)

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

NOTICE TO THIRD-PARTY AGENCIES:

HNTB does not accept unsolicited resumes from recruiters or agencies. Any staffing/employment agency, person or entity that submits an unsolicited resume to this site does so with the understanding that the applicant's resume will become the property of HNTB. HNTB will have the right to hire that applicant at its discretion and without any fee owed to the submitting staffing/employment agency, person or entity. Staffing/employment agencies who have fee agreements with HNTB must submit applicants to the designated HNTB recruiter to be eligible for placement fees.


What HNTB employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


HNTB logo

About HNTB

Sourced by ZipRecruiter

At HNTB, you can create a career that is meaningful to you while building communities that matter to all of us. For more than a century, we have been delivering solutions for some of the largest, most complex infrastructure projects across the country. With our historic growth, it is an exciting time to join our team of employee-owners.

Industry

Construction

Company size

1,001 - 5,000 Employees

Headquarters location

Kansas City, MO, US

Year founded

1914