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Ruby On Rails Developer Contract Jobs in Delaware

Sr Software Engineer - 90404987

Wilmington, DE · On-site

$118K - $156K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

By living the Amtrak values, focusing on our capabilities, and actively embracing and fostering ... Railroad Retirement sickness and retirement benefits; and rail pass privileges. Learn more about ...

Sr Software Engineer - 90404987

Wilmington, DE

$118K - $156K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

By living the Amtrak values, focusing on our capabilities, and actively embracing and fostering ... Railroad Retirement sickness and retirement benefits; and rail pass privileges. Learn more about ...

Android Developer

Wilmington, DE · On-site

$54 - $71/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Kforce has a client that is seeking an Android Developer in Wilmington, DE. Overview: The mobile ... Hourly employees on a Service Contract Act project are eligible for paid sick leave. Note: Pay is ...

Principal Software Engineer - 90402969

Wilmington, DE · On-site

$131K - $175K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

By living the Amtrak values, focusing on our capabilities, and actively embracing and fostering ... Railroad or other transportation experience is a plus Knowledge, Skills, and Abilities

Principal Software Engineer - 90402969

Wilmington, DE · On-site

$131K - $175K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

By living the Amtrak values, focusing on our capabilities, and actively embracing and fostering ... Railroad or other transportation experience is a plus Knowledge, Skills, and Abilities

APIGEE developer

Delaware City, DE · On-site

$60K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Relies on experience and judgment to plan and accomplish goals. A wide degree of creativity and ... Contract Salary: $60,000.00 /year Required education: * Bachelor's Required experience: * Developer ...

Contract Duration: Long Term Open Description: We are seeking an experienced Sr. Mainframe ... The ideal candidate should have strong hands-on development experience in Mainframe technologies ...

Engineering Project Coordinator

Wilmington, DE · On-site

$95 - $140/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Manage $1-$3M gross of water/wastewater developer projects annually, including project development ... Prepare permit applications for street cuts, stream crossings, and railroad crossings, etc.

Engineering Project Coordinator

Wilmington, DE

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Manage $1-$3M gross of water/wastewater developer projects annually, including project development ... Prepare permit applications for street cuts, stream crossings, and railroad crossings, etc.

Mainframe IMS DB Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Contract/W2/Full Time Job Responsibilities: Executes software solutions, design, development, and ... Formal training or certification on software engineering concepts and 3+ years of applied ...

Informatica Developer

Delaware City, DE · On-site

$80K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Experience on Informatica Power center Grid config. * Experience on Informatica IDQ. * Experience ... Contract Salary: $80,000.00 /year Required education: * Bachelor's Required experience: * Developer ...

Mainframe Developer

Wilmington, DE · On-site

$47.50 - $61.25/hr

Wilmington, DE & Jersey City, NJ (Weekly 5 days office is Must) Duration: 12+ Months Contract ... on experience with the following mainframe technologies: o COBOL (batch and online) o JCL (Job ...

Showing results 41-60

Ruby On Rails Developer Contract information

See Delaware salary details

$25.5K

$122.2K

$171.6K

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

As of Aug 19, 2026, the average yearly pay for ruby on rails developer contract in Delaware is $122,219.00, according to ZipRecruiter salary data. Most workers in this role earn between $102,600.00 and $140,600.00 per year, depending on experience, location, and employer.

What is a Ruby on Rails developer contract?

A Ruby on Rails Developer Contract job is a temporary role where a developer is hired to build, maintain, or improve applications using the Ruby on Rails framework. These contracts can range from a few months to a year or more, depending on the project's scope. Contractors typically work on web applications, backend systems, or API development. They may be hired by startups, agencies, or larger companies looking for specialized expertise without committing to a full-time role.

What are the typical day-to-day responsibilities for a contract Ruby on Rails developer?

As a contract Ruby On Rails Developer, your daily tasks usually include developing and maintaining web applications, writing clean backend code, integrating third-party services, and troubleshooting technical issues as they arise. You'll often participate in virtual standups or meetings with cross-functional teams, collaborate on feature planning, and provide input on best practices for code quality and application architecture. Additionally, you may be responsible for writing tests, updating documentation, and assisting with direct deployments depending on the team's workflow. This dynamic environment provides opportunities to work with various technologies and businesses, making each contract both challenging and rewarding.

What are the key skills and qualifications needed to thrive in the Ruby on Rails developer contract position, and why are they important?

To thrive as a Ruby On Rails Developer Contract, you need strong proficiency in Ruby, Rails framework, RESTful APIs, and SQL databases, typically demonstrated through professional experience or relevant computer science education. Familiarity with version control systems like Git, testing frameworks (such as RSpec), and deployment tools is essential, while certifications or open-source contributions can be advantageous. Excellent problem-solving skills, adaptability, and effective communication are crucial soft skills for collaborating with distributed teams and delivering client-focused solutions. These abilities are vital to ensure robust, maintainable code and successful project outcomes within contract-based, time-sensitive work environments.

What are the most commonly searched types of Ruby On Rails Developer jobs in Delaware?

The most popular types of Ruby On Rails Developer jobs in Delaware are:

What are popular job titles related to Ruby On Rails Developer Contract jobs in Delaware?

For Ruby On Rails Developer Contract jobs in Delaware, the most frequently searched job titles are:

What job categories do people searching Ruby On Rails Developer Contract jobs in Delaware look for?

The top searched job categories for Ruby On Rails Developer Contract jobs in Delaware are:

What cities in Delaware are hiring for Ruby On Rails Developer Contract jobs?

Cities in Delaware with the most Ruby On Rails Developer Contract job openings:

Infographic showing various Ruby On Rails Developer Contract job openings in Delaware as of August 2026, with employment types broken down into 79% Full Time, 7% Part Time, and 14% Contract. Highlights an 84% Physical, 3% Hybrid, and 13% Remote job distribution, with an average salary of $122,219 per year, or $58.8 per hour.

Contract Sr. Frontend Engineer

Waters Corporation

New Castle, DE • Hybrid

$118K - $162K/yr

Contractor

Re-posted 9 days ago


Job description

Overview

TA Instruments is a world leading Scientific Instrumentation company with a focus on Material Characterization. 

Our instruments are pivotal in: Electric Cars, 3D Printing, batteries, recyclable plastics, space suits, candy that melts in your mouth and not your hands, paint that goes on smooth and dries without streaks, even ensuring your French fries have the perfect crunch to them!  Material Science uniquely spans the fields of physics, chemistry, engineering, and manufacturing. 

Our instruments and software come together to aid in accelerating the design of new materials as well as the quality of manufacturing those materials.

We are looking for an experienced Sr. FrontEnd Engineer to join our Research and Development organization and contribute to the continued success of our Thermal Analysis and Rheology products.

This is a hybrid contract position (Requiring on-site for three days a week)

Responsibilities

As a Software Engineer you will:

  • Research, design, develop and release/maintain: User interface, Data analysis, Instrument control software for thermal analysis, rheological, and calorimetric instruments.
  • Work within a formal development process covering the full development lifecycle.
  • Provide code and supporting documentation in accordance with the coding guidelines, quality processes and applicable procedures, including team's definition of done.
  • Keep a pro-active attitude to ensure continuous improvement of the software quality, work process and individual skills.
  • Provide contributions to the application architecture with a focus on scalability, maintainability, and performance.
  • Develop and maintain scalable, responsive web applications using ReactJS and TypeScript.
  • Work closely with UX/UI designers, back end engineers, product managers, and Test Automation team to translate requirements into technical implementations.
  • Build and extend reusable component libraries and adhere to established design systems.
  • Optimize application performance for fast load times and smooth user interactions.
  • Participate in code reviews, sharing constructive feedback with peers.
  • Write unit and integration tests to ensure code quality and reliability.
  • Troubleshoot and resolve technical issues, collaborating with the team to maintain application stability.
  • Stay informed about emerging front end trends, tools, and technologies, and suggest improvements.

 As a Team Member you will:

  • Participate in all team meetings and ceremonies in direct collaboration with other sites, provide input and feedback, take ownership on identified improvements.
  • Actively participate in learning and sharing activities either during informal or formal training and demos.
  • Demonstrate continuous technical improvement.
Qualifications

Education:

  • You have a Bachelors Degree (preferably in a science related subject or in engineering)

Experience:

  • 5+ years of professional front-end development experience.
  • 5+ years of hands-on experience with ReactJS in production environments.
  • Strong proficiency in TypeScript, including advanced typing, generics, and interfaces.
  • Deep understanding of HTML5, CSS3, and modern layout techniques.
  • Experience with state management libraries.
  • Familiarity with front end build tools and bundlers.
  • Proficient in writing unit and integration tests using frameworks.
  • Experience with RESTful APIs integration.
  • Solid understanding of web accessibility standards (WCAG) best practices.
  • Excellent problem-solving skills and attention to detail.

Desired:

  • Experience with server-side rendering frameworks.
  • Knowledge of CI/CD pipelines and infrastructure as code.
  • Familiarity with design tools (Figma) and collaborating with design teams.
  • Experience with performance monitoring and analytics tools.
  • Familiarity with TailWind & ReactQuery.
  • Strong communication skills and ability to work effectively in cross-functional teams.
For you it's more than a job. Among other things we're strong advocates of creating quality software, and using the latest testing methodologies to ensure we meet the expectations of our customers.Company Description

Waters Corporation (NYSE:WAT) is a global leader in life sciences and diagnostics, dedicated to accelerating the benefits of pioneering science through analytical technologies, informatics, and service. With a focus on regulated, high-volume testing environments, our innovative portfolio harnesses deep scientific expertise across chemistry, physics, and biology. We collaborate with customers around the world to advance the release of effective, high-quality medicines, ensure the safety of food and water, and drive better patient outcomes by detecting diseases earlier, managing routine infections, and combating antibiotic resistance. Through a shared culture of relentless innovation, our passionate team of ~16,000 colleagues turn scientific challenges into breakthroughs that improve lives worldwide. 

Diversity and inclusion are fundamental to our core values at Waters Corporation. It benefits our employees, our products, our customers and our community. Waters complies with all applicable federal, state, and local laws. Qualified applicants are considered without regard to sex, race, color, ancestry, national origin, citizenship status, religion, age, marital status (including civil unions), military service, veteran status, pregnancy (including childbirth and related medical conditions), genetic information, sexual orientation, gender identity, legally recognized disability, domestic violence victim status, or any other characteristic protected by law. Waters is proud to be an equal opportunity workplace and is an affirmative action employer. All hiring decisions are based solely on qualifications, merit, and business needs at the time.

Employment Type: OTHER