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Ruby On Rails Contractor Jobs in Massachusetts (NOW HIRING)

Roberts Recruiting, LLC

Principal/Architect

Boston, MA · On-site

Machine learning and big data • Real time processing technologies • BI tools • Ruby on Rails • React • CI/CD pipelines • NOSQL technologies Company : Roberts Recruiting, LLC is a ...

Socket.dev

Full-Stack Engineer (Boston)

Boston, MA · On-site

$150 - $225/hr

We currently use AWS, Ruby on Rails, and NextJS, and would expect you to have proficiency in a modern tech stack even if it isn't the one we are using. Please note that this role is based in either ...

New

Computech Corporation

Sr. Software Engineer

Boston, MA · On-site

$133K - $175K/yr

Familiarity with at least one server-side MVC Framework (ROR, Django, etc) and how it relates to server and client side web development is a plus. * Must be self-motivated with the ability to work ...

KG Tiger

Web Application Engineer

Natick, MA · On-site

... in Ruby on Rails or Java in a commercial software environment 3. Experience with HTML5, JavaScript, CSS, SQL, and database concepts 4. Experience with JavaScript frameworks such as (e.g. Dojo ...

General Medicine Inc.

Mobile Engineer (Boston)

Boston, MA · On-site

$150 - $225/hr

Familiarity with modern backend frameworks is a plus -- we use Ruby on Rails and Postgres Please note that this role is based in either our SF office (near Market and Spear St) or our Boston office ...

Good American, LLC

IT, Senior Manager

Beverly, MA · On-site

$100 - $140/hr

Ability to develop software in Java, Ruby on Rails, C++ or other programming languages * Knowledge of relational databases, SQL and ORM technologies (JPA2, Hibernate) * Experience developing web ...

New

Human Agency

Senior Full-Stack Engineer

Boston, MA

US Applicants - Full-Time; Canadian Applicants - Independent Contractor About Human Agency We're ... Proficiency in Python and Ruby on Rails , with significant backend experience. * Experience in ...

Human Agency

Senior Full-Stack Engineer

Boston, MA · On-site

US Applicants - Full-Time; Canadian Applicants - Independent Contractor About Human Agency We're ... Proficiency in Python and Ruby on Rails , with significant backend experience. * Experience in ...

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Showing results 21-40

All JobsRuby On Rails Contractor JobsRuby On Rails Contractor Jobs in Massachusetts

Ruby On Rails Contractor information

See Massachusetts salary details

$27.8K

$133.4K

$187.3K

How much do ruby on rails contractor jobs pay per year?

As of Aug 20, 2026, the average yearly pay for ruby on rails contractor in Massachusetts is $133,363.00, according to ZipRecruiter salary data. Most workers in this role earn between $111,900.00 and $153,400.00 per year, depending on experience, location, and employer.

What is a Ruby on Rails contractor?

Ruby on Rails contractors are professionals who specialize in building web applications using the Ruby on Rails framework. They are typically hired on a contract basis, either for short-term projects, specific features, or to augment in-house development teams. These contractors handle tasks such as backend development, API integration, database management, and sometimes front-end work, all centered around the Rails ecosystem. Their expertise allows businesses to rapidly develop, maintain, or upgrade web applications efficiently.

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

To thrive as a Ruby On Rails Contractor, you need strong programming skills in Ruby, expertise in the Rails framework, and a solid understanding of web application architecture, typically backed by experience or a relevant degree. Familiarity with tools like Git, PostgreSQL/MySQL, RESTful APIs, and deployment platforms such as Heroku or AWS is often required. Excellent problem-solving, time management, and communication skills help contractors efficiently collaborate with clients and teams. These skills ensure high-quality, maintainable code and successful project delivery in competitive, fast-paced environments.

What are some common challenges Ruby on Rails contractors face when joining a new development team?

Ruby On Rails Contractors often need to quickly adapt to existing codebases and team workflows, which can pose challenges if documentation is sparse or coding standards differ. Additionally, contractors must rapidly build rapport with permanent team members to ensure smooth collaboration, particularly in agile environments. Balancing multiple projects or client expectations can also require strong time management and communication skills. Being proactive about asking questions and clarifying requirements can help overcome these hurdles and contribute effectively from the start.

What is the difference between Ruby On Rails Contractor vs Ruby On Rails Developer?

AspectRuby On Rails ContractorRuby On Rails Developer
CredentialsTypically no formal certification required, but experience is keyOften holds a degree or certification in computer science or related fields
Work EnvironmentFreelance, project-based, often remoteFull-time or part-time employment within a company or agency
Employer & Industry UsageHired by various clients across industries for specific projectsEmployed by companies to develop and maintain applications
Search & Comparison IntentLooking for flexible, short-term project workSeeking ongoing, in-house or remote development roles

In summary, a Ruby On Rails Contractor is typically a freelance professional hired for specific projects, offering flexibility and diverse experience. A Ruby On Rails Developer usually works as a full-time employee, focusing on long-term application development within a company. Both roles require strong Rails skills but differ mainly in employment type and work setup.

What are popular job titles related to Ruby On Rails Contractor jobs in Massachusetts?

For Ruby On Rails Contractor jobs in Massachusetts, the most frequently searched job titles are:

What job categories do people searching Ruby On Rails Contractor jobs in Massachusetts look for?

The top searched job categories for Ruby On Rails Contractor jobs in Massachusetts are:

What cities in Massachusetts are hiring for Ruby On Rails Contractor jobs?

Cities in Massachusetts with the most Ruby On Rails Contractor job openings:

Ruby On Rails Contractor jobs near you
Infographic showing various Ruby On Rails Contractor job openings in Massachusetts as of August 2026, with employment types broken down into 88% Full Time, 2% Part Time, and 10% Contract. Highlights an 82% In-person, and 18% Remote job distribution, with an average salary of $133,363 per year, or $64.1 per hour.

Senior Full Stack Software Engineer - (On Site Role)

4G Clinical

Wellesley, MA • On-site

$155/hr

Full-time

Re-posted 19 hours ago

Job description

Description
4G Clinical is a global leader in randomization and trial supply management (RTSM) and supply forecasting optimization software for the life sciences industry, offering the only fully cloud-based, 100% configurable and flexible solutions utilizing natural language processing (NLP) to accelerate clinical trials. 4G Clinical is headquartered in the Boston Biotech corridor of Wellesley, MA, with offices in Europe and Asia.
We are seeking a Software Engineer with experience applying mathematical and statistical modeling techniques to solve complex business and technical problems.
Responsibilities
The Software Engineer is responsible for the following:
  • Participate on a decentralized, agile-based software development team.
  • Write reusable, testable, and efficient code, unit-test and document implemented features
  • Design and implementation of low-latency, high-availability, and performant applications
  • Implementation of server-side models and algorithms, with emphasis on complex statistical computations
  • Implementation of web service APIs (REST)
  • Implementation of client-side logic, including UX design, HTML layouts and templates, AngularJS logic, and styling
  • Implementation of security and data protection
  • Integration of data storage solutions

Requirements
The position requires a minimum of 6 - 10 years' experience as a Software Engineer or a Data Scientist in an agile environment working with web-based applications.
  • Experience with ORM (Object Relational Mapping)
  • Experience with numerical/statistical package such as NumPy, Pandas
  • Design and implementation of APIs such as Django/Django Rest Framework, Express.js or any Node.js framework
  • Experience with modern application frameworks such as Django or Ruby on Rails
  • Experience with Object Oriented Programming
  • Experience with micro-services / loosely coupled applications using multiple data sources and interfaces
  • Good understanding of how databases work and how to use them efficiently
  • Understanding of probability, statistics, and strong mathematical foundation
  • Understanding of fundamental design principles behind a scalable application
  • Experience with cloud-based applications and virtualization is a plus (Docker, EC2, S3)

Education and/or Certification Requirements
  • A Bachelor's degree in computer science, software engineering, mathematics or equivalent field is required, with preference towards Master's degree or higher.
  • 6-10 years' experience in a development role in an agile development environment

Compensation: $130k - $155kThe salary range listed above represents a good-faith estimate of the base pay for this role and is provided to comply with applicable laws and regulations. The actual base salary offered will depend on factors such as the candidate's location, qualifications, experience, and skills

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