• Ruby on Rails Developer, Associate

    Job Locations US-IL-Naperville
    Job ID
    Contract W-2 FTE
  • Overview

    MOTIVATED…..make IT happen!

    2017 Illinois Top Workplace Logo     2018 Chicago Top Workplace Logo

    Awarded Chicago Tribune TOP WORKPLACE six consecutive years


    About Us:      


    Sentinel delivers solutions that can efficiently address a range of IT needs – from communications, to data center, to cloud and managed services, which includes our staffing solutions. Since 1982, Sentinel has grown from providing technology maintenance services to our current standing as one of the leading IT services and solutions provider in the US. We have aligned with many of today’s global technology leaders including Cisco, Microsoft, Vmware, Dell/EMC, and NetApp. Sentinel services customers both nationally and internationally with primary support operating centers in Chicago, Downers Grove (HQ), and Springfield, IL; Phoenix, AZ.; Ann Arbor, Lansing, and Grand Rapids, MI; Milwaukee, WI; Denver, CO; Atlanta, GA.


    If you are MOTIVATED… you can make IT happen at Sentinel. Our commitment to our employees is to create a work environment that encourages creativity, an entrepreneurial spirit, fosters growth through certification and hands-on training, values a team-oriented culture and rewards based on impact!


    If you are Motivated you can join our team and make IT happen! Learn more at


    Ruby on Rails Developer, Associate

    As a Ruby on Rails Developer you will be responsible for building and maintaining secure, clean, and efficient Ruby code. You will also build, configure, and maintaining high performing API endpoints for web-based applications using RESTful services. You will have the opportunity to work closely with colleagues to build new product features from the ground up. This is a 6 month contract to hire role located in Naperville, IL.

    #DNPAJE-Don't Scrape 



    • 3+ years of experience with Ruby on Rails
    • 3+ years of experience scripting with Ruby
    • 3+ years of experience with any relational database specifically MSSQL
    • Experience with Ruby on Rails, along with other common libraries such as RSpec and Resque
    • Solid understanding of the syntax of Ruby
    • Proficient understanding of object-oriented programming
    • Good understanding of server-side CSS preprocessors
    • Basic understanding of front-end technologies, such as JavaScript, HTML5, HAML, Knockout, and CSS3
    • Familiarity with concepts of RESTful
    • Ability to write clean, readable Ruby code
    • Knowledge of fundamental design principles behind a scalable application
    • Experience in Test Driven Development (TDD) and agile methodologies
    • Proficient understanding of code versioning tools
    • Familiarity with development aiding tools
    • Familiarity with continuous integration
    • Preferred familiarity in VS Studio vb.NET/c#.NET
    • The candidate must have a car, as this position requires travel between location and the transportation of equipment
    • A valid driver’s license and proof of vehicle insurance will be required
    • Legally authorized to work in the US without sponsorship
    • Must be currently working in a similar position
    • Must demonstrate a “can-do” attitude


    We focus on candidates that display our “ACE” factor – Attitude, Compassion, and Enthusiasm to deliver quality solutions with exceptional customer service.


    What you get:


    We offer an energetic work environment with many corporate culture amenities, competitive pay rate, employer portion of Soc. Security/Medicare paid, medical benefits, 401K retirement savings, discounts for local event entertainment and health clubs.


    As part of Sentinel's employment process, candidates will be required to complete a background check. Only those who meet the minimum requirements will be contacted. No phone calls please.


    Sentinel is proud to be an equal opportunity/affirmative action employer committed to a diverse and inclusive work environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, marital status, genetics, disability, pregnancy, veteran status or any other basis protected by law.


    If you are an individual with a disability and need assistance in applying for a position, please contact


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