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Junior Ruby On Rails Developer Jobs in Claymont, DE

AECOM

Junior OCS Engineer

Philadelphia, PA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

AECOM is seeking a talented Junior Level OCS ( Overhead Catenary Systems) Engineer to join our ... Apply knowledge and understanding of rail design, rail operations and construction on or about a ...

GFT.

Sr. Rail Bridge Engineer

Philadelphia, PA · On-site

$141K - $170K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Working on the Transportation team at GFT offers the opportunity to engage in transformative ... Mentor junior engineers and collaborate with other team members across varied disciplines to meet ...

CoServe Global Solutions

Jr. DevOps Engineer

Cherry Hill, NJ · On-site

$52.25 - $71.50/hr

Our vision is to help discover the very best talent on the planet. And then help those people find ... Ruby, JavaScript, Python) * Experience with systemlogging (e.g. Logstash, Splunk) * Experience ...

CoServe Global Solutions

Jr. DevOps Engineer

Cherry Hill, NJ

$52.25 - $71.50/hr

Our vision is to help discover the very best talent on the planet. And then help those people find ... Ruby, JavaScript, Python) * Experience with systemlogging (e.g. Logstash, Splunk) * Experience ...

VHB

Track Engineering Technical Lead

Philadelphia, PA · On-site

$170K - $200K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

... on high-profile passenger rail systems while helping expand VHB's growing Transit & Rail presence. Beyond technical leadership, this position plays a key role in mentoring junior engineers ...

GFT.

Rail Bridge Engineer

Philadelphia, PA · On-site

$125K - $150K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

GFT is seeking a Rail Bridge Engineer to join our Transportation Team in either our Marlton, NJ or ... Working on the Transportation team at GFT offers the opportunity to engage in transformative ...

Magnus Technology Solutions

Be Seen First

Junior Java Developer

Philadelphia, PA · On-site

$60K - $80K/yr

  • Medical

Junior Java Developer Location: Philadelphia, PA Job Type: Full-time Work Authorization: Visa ... based on requirements. * Collaborate with the team to ensure seamless integration with other ...

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

As of Aug 19, 2026, the average yearly pay for junior ruby on rails developer in Claymont, DE is $119,130.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,000.00 and $137,100.00 per year, depending on experience, location, and employer.

What is a junior Ruby on Rails developer?

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 does a junior Ruby on Rails developer do?

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 as a junior Ruby on Rails developer?

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.

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Junior Ruby On Rails Developer jobs near you

Junior Vehicles Engineering Specialist

STV Incorporated

Philadelphia, PA • On-site

$75K - $86K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 4 days ago

Job description

STV is seeking a Junior Vehicle Engineering Specialist to join our Vehicles Practice in our Philadelphia, PA office. This is an excellent opportunity for an early-career engineer to work alongside industry-leading professionals supporting rail and transit vehicle programs across North America.
The successful candidate will support rail vehicle engineering and systems integration activities involving train control interfaces, communications systems, traction power interfaces, onboard vehicle systems, and transit modernization programs. This role offers exposure to complex transportation projects while providing mentorship, technical development, hands-on experience, and a clear path for career growth within STV's national Vehicles practice.
Position Summary
The Junior Vehicle Engineering Specialist will assist senior engineers with the planning, design review, analysis, testing, and implementation of rail and transit vehicle systems. The position involves technical coordination across multiple engineering disciplines and participation in vehicle procurement, overhaul, modernization, and systems integration projects.
The ideal candidate is intellectually curious, detail-oriented, and passionate about rail transit technology and transportation infrastructure.
Responsibilities
  • Support engineering and technical reviews of rail vehicle systems, including propulsion, braking, train control, communications, HVAC, doors, auxiliary power, and onboard electronics.
  • Assist with vehicle procurement, rehabilitation, overhaul, and fleet modernization programs.
  • Review engineering drawings, specifications, design packages, and technical submittals for compliance with project requirements.
  • Perform field testing on rail vehicles and subsystems.
  • Participate in systems integration activities between rolling stock and wayside systems.
  • Support vehicle testing, inspection, commissioning, and acceptance activities at client and manufacturing sites.
  • Perform technical analyses and engineering calculations under the guidance of senior staff.
  • Document findings and prepare technical reports, presentations, and meeting summaries.
  • Coordinate with multidisciplinary engineering teams including signaling, communications, traction power, track, and facilities.
  • Support development of project deliverables, cost estimates, schedules, and engineering documentation.
  • Attend client meetings, workshops, and field inspections as required.
  • Assist with issue resolution, troubleshooting, and risk identification throughout project execution.
  • Maintain awareness of transit industry standards, emerging technologies, and best practices.

Required Qualifications
  • Bachelor's degree in Mechanical Engineering, Electrical Engineering, Systems Engineering, Transportation Engineering, or a related engineering discipline.
  • 0-3 years of relevant engineering experience.
  • Basic understanding of vehicle systems, transportation systems, or systems engineering principles.
  • Strong technical writing, communication, and organizational skills.
  • Proficiency with Microsoft Office Suite.
  • Ability to work collaboratively in a multidisciplinary team environment.
  • Willingness to travel periodically to project sites and client locations.

Preferred Qualifications
  • Internship, co-op, research, or project experience related to rail, transit, transportation, or vehicle systems.
  • Familiarity with systems engineering methodologies and requirements management.
  • Experience reviewing technical drawings and engineering documentation.
  • Knowledge of rail transit systems, rolling stock technologies, or transportation infrastructure.
  • Exposure to AutoCAD, MicroStation, MATLAB, Python, or other engineering tools.
  • EIT certification or progress toward professional licensure.

Key Competencies
  • Analytical problem-solving
  • Technical aptitude
  • Attention to detail
  • Communication and teamwork
  • Professional curiosity and continuous learning
  • Time management and organization

Compensation Range:
$75,656.68 - $86,464.77
STV offers the following benefits • Health insurance, including an option with a Health Savings Account • Dental insurance • Vision insurance • Flexible Spending Accounts (Healthcare, Dependent Care and Transit and Parking where applicable) • Disability insurance • Life Insurance and Accidental Death & Dismemberment • 401(k) Plan • Retirement Counseling • Employee Assistance Program • Paid Time Off (starting at 16 days) • Paid Holidays (9 days) • Back-Up Dependent Care (up to 10 days per year) • Parental Leave (up to 80 hours) • Continuing Education Program • Professional Licensure and Society Memberships
STV is committed to paying all of its employees in a fair, equitable, and transparent manner. The listed pay range is STV's good-faith salary estimate for this position. Please note that the final salary offered for this position may be outside of this published range based on many factors, including but not limited to geography, education, experience, and/or certifications.
Not sure this role is the perfect match? We encourage you to apply if STV's work and values resonate with you. We know great candidates don't always meet every qualification, and research shows women and people of color are less likely to apply unless they do. At STV, we believe strong talent comes from a wide range of backgrounds, and your skills and experience may align with this or another opportunity as we continue to grow.
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About STV

Sourced by ZipRecruiter

STV is a leading provider of professional and technical services operating within the design and construction industry. Headquartered in New York, NY, the firm makes a great difference in the field of infrastructure, transportation, building facilities, communications, energy, and other related industries. Responsible for some of the most renowned design projects in the U.S., STV integrates architecture, engineering, interior design, and construction management services. This multi-discipline company was founded in 1912 and has been demonstrating a constant commitment to excellence, innovation, and technology since its inception.

Industry

Architectural services and construction

Company size

1,001 - 5,000 Employees

Headquarters location

New York, NY, US

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