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Rails Library Jobs in Dolton, IL (NOW HIRING)

Senior Staff Engineer

Chicago, IL · On-site

$208K - $349K/yr

Ruby, Ruby on Rails * TypeScript, React * MongoDB * Event-driven architectures * Distributed ... You've built frameworks, libraries, or platform services used by many other engineers to build ...

Senior Staff Engineer

Chicago, IL · On-site

$107K - $147K/yr

Ruby, Ruby on Rails * TypeScript, React * MongoDB * Event-driven architectures * Distributed ... You've built frameworks, libraries, or platform services used by many other engineers to build ...

Rails Library information

See Dolton, IL salary details

$8

$15

$27

How much do rails library jobs pay per hour?

As of Sep 6, 2026, the average hourly pay for rails library in Dolton, IL is $15.03, according to ZipRecruiter salary data. Most workers in this role earn between $11.25 and $16.78 per hour, depending on experience, location, and employer.

What is a Rails library?

A Rails Library is a collection of reusable code, modules, or components designed to extend or enhance the functionality of Ruby on Rails applications. These libraries, often called 'gems,' help developers add features such as authentication, file uploads, or API integrations without writing everything from scratch. By using Rails Libraries, developers can save time, maintain cleaner code, and leverage best practices established by the community.

What are some common challenges faced by developers working on a Rails library, and how can they be addressed?

Developers working on a Rails library often encounter challenges such as maintaining compatibility with multiple Rails versions, ensuring robust test coverage, and managing open-source contributions. Staying up-to-date with the Rails framework's updates is crucial to prevent deprecation issues. Collaborating effectively with other contributors, documenting code thoroughly, and setting up automated testing workflows can significantly help overcome these challenges and ensure the library remains reliable and widely usable.

What are the key skills and qualifications needed to thrive as a Ruby on Rails developer, and why are they important?

To thrive as a Ruby on Rails Developer, you need strong skills in Ruby programming, web application development, and a solid understanding of MVC architecture, typically supported by a degree in computer science or related experience. Proficiency with tools like Git, databases (such as PostgreSQL or MySQL), and deployment platforms, along with familiarity with testing frameworks, is essential. Excellent problem-solving abilities, collaboration, and effective communication skills help developers work efficiently within teams and adapt to evolving project requirements. These skills are critical to delivering robust, scalable applications and ensuring smooth project execution in dynamic software environments.

What is the difference between Rails Library vs Rails Developer?

AspectRails LibraryRails Developer
Required CredentialsNone specific; knowledge of Ruby and Rails neededBachelor's in Computer Science or related field; proficiency in Ruby on Rails
Work EnvironmentUsed within Rails applications; library code is integrated into projectsDevelops and maintains Rails applications; full project lifecycle
Employer & Industry UsageOpen-source projects, software companies, web development teamsWeb development agencies, startups, tech companies
Search & Comparison IntentUnderstanding libraries that extend Rails functionalityHiring or hiring for Rails development roles

In summary, a Rails Library is a collection of code that adds specific features to Rails applications, often used by developers. A Rails Developer, however, is a professional who builds, maintains, and enhances entire Rails applications. While libraries are tools used by developers, the developer role encompasses the full development process.

What cities near Dolton, IL are hiring for Rails Library jobs?

Cities near Dolton, IL with the most Rails Library job openings:

Infographic showing various Rails Library job openings in Dolton, IL as of August 2026, with employment types broken down into 77% Full Time, 19% Part Time, 1% Temporary, and 3% Contract. Highlights an 88% Physical, 5% Hybrid, and 7% Remote job distribution, with an average salary of $31,263 per year, or $15 per hour.

Summer 2027 AI Intern, Advanced Rail Technology

Progress Rail Services Corporation

La Grange, IL • On-site

$22.16 - $36.90/hr

Temporary, Internship

Medical, Dental, Vision, Life, Retirement, PTO

Posted 3 days ago

New


Progress Rail rating

6.7

Company rating: 6.7 out of 10

Based on 71 frontline employees who took The Breakroom Quiz

388th of 499 rated machine equipment manufacturers


Job description

Job Purpose
As an AI Intern on the ART team, you'll help design and prototype AI strategies that interpret complex rail logistics scenarios and recommend (and where appropriate, automatically execute) planning actions on top of our optimization and decision support tools. You'll work at the intersection of large language models (LLMs), decision science, and software engineering-building integrations that let LLMs reason over domain data, call specialized tools and services, and generate reliable, auditable outputs for planners and operators. You'll collaborate closely with product, R&D, data engineering, and optimization teams to deliver experiments, proofs of concept, and pilot features that improve network velocity, asset utilization, and safety.
Company Description
Progress Rail stands at the intersection of legacy and innovation-driving the future of rail with a pioneering spirit. Since its founding in 1983, the company has grown to become one of the world's largest and most trusted providers of railroad products, services, and technologies. Today, Progress Rail delivers a comprehensive portfolio of cost-effective solutions to railway customers around the globe. From the rails themselves to the EMD® locomotives that ride them, the company's products are in operation across more than 100 countries-powering progress and connecting communities. In 2006, Progress Rail joined Caterpillar Inc., further strengthening its ability to lead the rail industry with cutting-edge technology, unmatched expertise, and a commitment to excellence. At Progress Rail, the team is not just building the future of rail-they are making history every day.
Education / Training
• Currently enrolled in a Bachelor's or master's program in Computer Science, Data Science, Electrical/Computer Engineering, Operations Research, Industrial Engineering, Applied Math, or a closely related field.
• Coursework in at least two of the following: machine learning, natural language processing, optimization/operations research, algorithms, databases, data structures, probability/statistics, or software engineering.
Key Job Elements
• Prototype LLM-enabled workflows: Build agents, prompts, and tool-use policies that let LLMs interpret timetables, work orders, speed restrictions, and plan alternatives, then suggest actions aligned with operating constraints.
• Integrate with optimization & decision tools: Connect LLM pipelines to solvers, simulators, and rules engines (e.g., scheduling/dispatch optimization, what if simulators) and validate that recommendations respect operational and safety rules.
• Engineering hygiene: Package prototypes as services/notebooks with versioned prompts, config, and unit tests; document assumptions, data contracts, and model/solver interfaces.
• Collaboration: Work with software, optimization, and R&D partners to iterate quickly on requirements; demo progress to stakeholders and capture feedback for the next sprint.
• Compliance & safety: Apply data privacy, access controls, and safety guardrails; follow MLOps and software best practices for deployment-readiness in an industrial environment.
Qualifications and Experience
Required:
• Hands on experience (course, project, or internship) with Python for data/ML (e.g., pandas, NumPy) and at least one ML/NLP library (e.g., PyTorch, TensorFlow, scikit learn, Hugging Face).
• Basic understanding of LLMs (prompting, fine tuning/LoRA, RAG, function/tool calling) and how to evaluate them (accuracy, grounding, latency, cost).
• Familiarity with REST APIs, JSON, and microservice integration; ability to consume/produce structured tool outputs.
• Strong problem-solving skills, clear written communication, and the ability to collaborate in a fast paced, multidisciplinary environment.
Preferred:
• Exposure to optimization/OR (linear/integer programming, heuristics, constraint programming) and integrating AI with solvers/simulators.
• Experience building RAG pipelines (vector stores, chunking, embeddings), prompt versioning, and guardrails/red teaming.
• Knowledge of MLOps practices (experimentation tracking, model/data versioning, CI/CD for ML) and containerization (Docker).
• Domain interest in transportation, rail logistics, supply chain, or cyber physical systems
Essential and Physical Activities Functions:
• Strength - This is a traditional office setting and requires the occasional lifting of weight of 50lbs. Lifting boxes of paper.
• Motion - This is a traditional office setting and requires the use of a computer, keyboard and other equipment. Employee will be sitting the majority of the day with occasional walking, climbing, squatting, kneeling and driving.
• Vision/Hearing Requirements - Must be able to communicate with customers and coworkers and utilize all office equipment.
• Work Environment - Work is in office sitting and not exposed to extremes of heat and cold. The position may require some exposure on the operation floor that could expose candidate to all environmental aspects.
• Emotional Demands - Employee is expected to quickly pick up tasks in a fast-paced office environment and maybe required to give presentation, speak in public and work in teams.
• Safety - This is not a safety sensitive position. The position will require the use of all site-specific PPE.
Hourly rate will be determined based on major and credit hours completed at start of internships. Transcripts will be requested.
Benefits
Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance, and experience. Please note that salary is only one component of total compensation at Progress Rail.**
  • Competitive Salary
  • 401(k) plan with up to 6% company match (no waiting period with immediate vesting)
  • Medical/Dental/Vision/Life/Disability Insurance
  • Supplemental Accident, Critical Care, and Hospital Insurance available along with an HDHP and HSA with seed money
  • Flexible Spending Accounts
  • Paid Vacation
  • Paid Holidays
  • Paid Time-Off (PTO)
  • Employee Assistance Plan
  • Education Assistance Program
  • Employee Recognition Programs
  • Site specific Production and Incentive Plans
  • Site specific Step and Skill Level Wage Adjustment Plans
  • Site Specific Relocation and Sign-on Bonus Programs

*Benefits eligibility varies by job position, full-time/part-time and regular/temporary status. The provisions of the plan documents control such benefits.
**Subject to position, eligibility, and plan guidelines.

What Progress Rail employees say

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Benefits

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Progress Rail logo

About Progress Rail

Sourced by ZipRecruiter

Our team works hard to create lifelong customer relationships, supplying comprehensive rolling stock and infrastructure solutions for the global rail industry and setting the standard for excellence. We care about fostering the sustainable movement of goods and people for generations to come, and we know our customers care, too. Our strategic footprint ensures responsive, quality customer support all day, every day. We are one of the largest integrated diversified providers of rolling stock and infrastructure solutions and technologies for the global rail industry. The company provides advanced EMD® locomotives, engines, and technologies, railcars, trackwork, fasteners, signaling, rail welding and Kershaw® Maintenance-of-Way equipment, along with dedicated locomotive and freight car repair services, aftermarket parts support and recycling operations. Progress Rail’s deep industry expertise ensures a commitment to quality through innovative solutions.

Industry

Consumer goods and commercial equipment rental services

Company size

5,001 - 10,000 Employees

Headquarters location

Albertville, AL, US

Year founded

1983