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Senior Ruby On Rails Developer Jobs in Claymont, DE

Senior Signals Engineer

Philadelphia, PA · On-site

$105K - $144K/yr

Whether improving your commute, keeping the lights on, providing access to clean water, or ... Support and coordinate highway-rail grade crossings, traffic signal preemption and transit signal ...

Senior Signals Engineer

Philadelphia, PA · On-site

$105K - $144K/yr

Whether improving your commute, keeping the lights on, providing access to clean water, or ... Support and coordinate highway-rail grade crossings, traffic signal preemption and transit signal ...

Senior Signals Engineer

Philadelphia, PA · On-site

$105K - $144K/yr

Whether improving your commute, keeping the lights on, providing access to clean water, or ... Support and coordinate highway-rail grade crossings, traffic signal preemption and transit signal ...

Senior Structural Engineer

Philadelphia, PA · On-site

$101K - $137K/yr

We are offering an exciting for a Senior Structural Engineer to join our Rail & Transit Group in ... A minimum of eight years of Structural Engineering experience with a focus on bridge design (rail ...

Senior Structural Engineer

Philadelphia, PA

$101K - $137K/yr

We are offering an exciting for a Senior Structural Engineer to join our Rail & Transit Group in ... 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

We are offering an exciting for a Senior Structural Engineer to join our Rail & Transit Group in ... A minimum of eight years of Structural Engineering experience with a focus on bridge design (rail ...

Sr UI Developer

Wilmington, DE · On-site

$58.25 - $75.50/hr

... rail transportation systems. If you have a passion for crafting responsive and user-friendly ... Cloud-Native Development: * Hands-on experience with AWS technologies. Testing Support:

Senior OCS Engineer

Philadelphia, PA · On-site

$105K - $144K/yr

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

Senior OCS Engineer

Philadelphia, PA · On-site

$105K - $144K/yr

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

Senior OCS Engineer

Philadelphia, PA · On-site

$105K - $144K/yr

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

Sr UI Developer (Wilmington, DE)

Wilmington, DE · On-site

$58.25 - $75.50/hr

... rail transportation systems. If you have a passion for crafting responsive and user-friendly ... Cloud-Native Development: * Hands-on experience with AWS technologies. Testing Support:

Sr UI Developer (Wilmington, DE)

Wilmington, DE · On-site

$58.25 - $75.50/hr

... rail transportation systems. If you have a passion for crafting responsive and user-friendly ... Hands-on experience with AWS technologies. Testing Support: Collaborate with Product Owner and Test ...

Showing results 41-60

Senior Ruby On Rails Developer information

See Claymont, DE salary details

$92.7K

$153.9K

$193.7K

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

As of Aug 19, 2026, the average yearly pay for senior ruby on rails developer in Claymont, DE is $153,870.00, according to ZipRecruiter salary data. Most workers in this role earn between $139,000.00 and $171,200.00 per year, depending on experience, location, and employer.

What is a senior Ruby on Rails developer?

A Senior Ruby on Rails Developer is an experienced software engineer specializing in building, maintaining, and optimizing web applications using the Ruby on Rails framework. They are responsible for writing clean, efficient code, designing application architecture, and ensuring performance and scalability. Senior developers also mentor junior team members, collaborate with cross-functional teams, and implement best practices in development, testing, and deployment. Their role often includes problem-solving, debugging complex issues, and staying updated with the latest industry trends.

What are typical daily responsibilities for a senior Ruby on Rails developer?

As a Senior Ruby On Rails Developer, your day-to-day tasks typically include designing and developing new features, maintaining and optimizing existing codebases, conducting code reviews, and integrating third-party APIs. You will often collaborate closely with product managers, UI/UX designers, and other engineers to ensure smooth project delivery and uphold best practices within the team. Additionally, you may mentor junior developers, troubleshoot complex technical issues, and contribute to architectural decisions. This multifaceted role offers both technical challenge and the opportunity to drive meaningful impact within your organization.

What are the key skills and qualifications needed to thrive as a senior Ruby on Rails developer?

To thrive as a Senior Ruby On Rails Developer, you need deep expertise in Ruby, Rails frameworks, object-oriented programming, and web application architecture, often supported by a bachelor's degree in computer science or related experience. Familiarity with development tools such as Git, PostgreSQL, Docker, RSpec, and cloud platforms, as well as relevant certifications, can enhance your effectiveness. Exceptional problem-solving, leadership, and communication skills help you mentor team members and coordinate with stakeholders. These competencies are critical to creating robust, scalable applications and contributing to both technical excellence and team success.

Are senior Ruby on Rails developers in demand?

Senior Ruby on Rails developers are in high demand due to the framework's popularity for building scalable web applications. Companies seek experienced developers with strong skills in Ruby, Rails, and related tools like Git and PostgreSQL, often offering competitive salaries and remote work options.

How much do senior Ruby on Rails developers make?

Senior Ruby on Rails developers in the US typically earn between $100,000 and $150,000 annually, depending on experience, location, and company size. Higher salaries are common in tech hubs and for those with expertise in related frameworks and cloud deployment. Compensation may also include benefits such as bonuses and stock options.

What is the salary of a Senior Ruby On Rails Developer?

The salary of a Senior Ruby on Rails Developer typically ranges from $90,000 to $150,000 annually, depending on experience, location, and company size. Senior developers with strong skills in Rails, database management, and deployment tools tend to earn at the higher end of this range.

What are the most commonly searched types of Ruby On Rails Developer jobs in Claymont, DE?

The most popular types of Ruby On Rails Developer jobs in Claymont, DE are:

What are popular job titles related to Senior Ruby On Rails Developer jobs in Claymont, DE?

For Senior Ruby On Rails Developer jobs in Claymont, DE, the most frequently searched job titles are:

What job categories do people searching Senior Ruby On Rails Developer jobs in Claymont, DE look for?

The top searched job categories for Senior Ruby On Rails Developer jobs in Claymont, DE are:

What cities near Claymont, DE are hiring for Senior Ruby On Rails Developer jobs?

Cities near Claymont, DE with the most Senior Ruby On Rails Developer job openings:

Infographic showing various Senior Ruby On Rails Developer job openings in Claymont, DE as of August 2026, with employment types broken down into 62% Full Time, and 38% Contract. Highlights an 89% In-person, and 11% Remote job distribution, with an average salary of $153,870 per year, or $74 per hour.

Junior Vehicles Engineering Specialist

STV

Philadelphia, PA

$75K - $86K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 2 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.