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Junior Ruby On Rails Developer Jobs in Jacksonville, FL

Act as a mentor to junior engineers and designers, providing guidance and support to promote their ... Exclusive discounts on products and services. * Company Merchandise Allowance: Company-funded ...

Act as a mentor to junior engineers and designers, providing guidance and support to promote their ... Exclusive discounts on products and services. * Company Merchandise Allowance: Company-funded ...

Act as a mentor to junior engineers and designers, providing guidance and support to promote their ... Exclusive discounts on products and services. * Company Merchandise Allowance: Company-funded ...

Senior Rail Engineer

Jacksonville, FL · On-site

$96K - $133K/yr

What is our impact on the world? #LI-JG9 Watch Our Story:' Each and every role throughout our ... Supervise junior staff performance of engineering tasks. * Work across industries with rail ...

Senior Rail Engineer

Jacksonville, FL · On-site

$96K - $133K/yr

What is our impact on the world? #LI-JG9 Watch Our Story:' Each and every role throughout our ... Supervise junior staff performance of engineering tasks. * Work across industries with rail ...

Senior Bridge Rail Engineer

Jacksonville, FL · On-site

$96K - $133K/yr

What is our impact on the world? Watch Our Story:' #LI-JG9 Each and every role throughout our ... Supervise junior staff performance of engineering tasks. * Work across industries with rail ...

What is our impact on the world? Watch Our Story:' #LI-JG9 Each and every role throughout our ... Supervise junior staff performance of engineering tasks. * Work across industries with rail ...

Kavaliro is hiring a Junior Web Developer for a local Jacksonville client ... In this role, you'll focus on developing and enhancing the adaptive web interface for a rail ...

Supervise junior staff performance of engineering tasks. * Work across industries with rail ... Proven, hands-on experience in all aspects of rail and/or civil design projects. * Experience ...

Supervise junior staff performance of engineering tasks. * Work across industries with rail ... Proven, hands-on experience in all aspects of rail and/or civil design projects. * Experience ...

Sr. Rail Bridge Engineer

Jacksonville, FL · On-site

$120K - $180K/yr

Working on the Transportation team at GFT offers the opportunity to engage in transformative ... Mentor junior engineers and collaborate with other team members across varied disciplines to meet ...

Working on the Transportation team at GFT offers the opportunity to engage in transformative ... Mentor junior engineers and collaborate with other team members across varied disciplines to meet ...

Sr. Rail Bridge Engineer

Jacksonville, FL · On-site

$120K - $180K/yr

Working on the Transportation team at GFT offers the opportunity to engage in transformative ... Mentor junior engineers and collaborate with other team members across varied disciplines to meet ...

... ROR dashboard • Oversee daily reporting of new leads and units generated Social Media Community Management: • Collaborate with Director or Operations and Social Media Coordinators on content ...

GFT is seeking a Rail Bridge Engineer to join our Transportation Team in either our Jacksonville ... Working on the Transportation team at GFT offers the opportunity to engage in transformative ...

GFT is seeking a Rail Bridge Engineer to join our Transportation Team in either our Jacksonville ... Working on the Transportation team at GFT offers the opportunity to engage in transformative ...

Rail Bridge Engineer

Jacksonville, FL · On-site

$108K - $140K/yr

GFT is seeking a Rail Bridge Engineer to join our Transportation Team in either our Jacksonville ... Working on the Transportation team at GFT offers the opportunity to engage in transformative ...

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Junior Ruby On Rails Developer information

See Jacksonville, FL salary details

$23.6K

$113.1K

$158.9K

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

As of Jul 31, 2026, the average yearly pay for junior ruby on rails developer in Jacksonville, FL is $113,146.00, according to ZipRecruiter salary data. Most workers in this role earn between $95,000.00 and $130,200.00 per year, depending on experience, location, and employer.

What does a typical day look like for a Junior Ruby On Rails Developer?

As a Junior Ruby On Rails Developer, you'll generally spend your days building new features, fixing bugs, and writing tests under the guidance of more experienced engineers. You will regularly collaborate with other developers, product managers, and designers through pair programming, code reviews, and team meetings. Expect to dedicate a portion of your time to learning new best practices and tools, as ongoing education is key early in your career. The work environment is often collaborative and supportive, providing mentorship and feedback to help you grow your technical skills and confidence.

What are the key skills and qualifications needed to thrive in the Junior Ruby On Rails Developer position, and why are they important?

To thrive as a Junior Ruby On Rails Developer, you should have a foundational knowledge of Ruby, Rails framework, web development principles, and basic database design, often supported by a relevant technical degree or coding bootcamp experience. Familiarity with version control systems like Git, testing frameworks such as RSpec, and cloud platforms is highly valued in entry-level roles. Strong problem-solving abilities, a willingness to learn, and effective communication skills help juniors contribute positively to their teams. These competencies empower developers to adapt quickly, collaborate efficiently, and deliver functional web applications in a fast-evolving tech environment.

What is a Junior Ruby On Rails Developer job?

A Junior Ruby on Rails Developer is an entry-level software developer specializing in building web applications using the Ruby on Rails framework. They typically work under the guidance of senior developers, assisting in writing and maintaining code, debugging issues, and implementing new features. Juniors are expected to have a basic understanding of Ruby, Rails conventions, databases, and version control systems like Git. They often collaborate with teams to develop scalable and efficient applications while continuously learning industry best practices. This role serves as a foundation for advancing to more senior development positions.

What are popular job titles related to Junior Ruby On Rails Developer jobs in Jacksonville, FL? For Junior Ruby On Rails Developer jobs in Jacksonville, FL, the most frequently searched job titles are:
What job categories do people searching Junior Ruby On Rails Developer jobs in Jacksonville, FL look for? The top searched job categories for Junior Ruby On Rails Developer jobs in Jacksonville, FL are:
What cities near Jacksonville, FL are hiring for Junior Ruby On Rails Developer jobs? Cities near Jacksonville, FL with the most Junior Ruby On Rails Developer job openings:
Infographic showing various Junior Ruby On Rails Developer job openings in Jacksonville, FL as of July 2026, with employment types broken down into 82% Full Time, 6% Part Time, 1% Temporary, and 11% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $113,146 per year, or $54.4 per hour.

Application Engineer

Stellar Energy Americas Inc

Jacksonville, FL • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 13 days ago


Job description

Application Engineer


Position Type: Full-time, Exempt, Salary

Reports to: Director Application Engineering

Supervisory Responsibility: None

Location: Jacksonville, FL (Corporate Headquarters)


Company Summary

Stellar Energy is a trusted provider of turnkey liquid-to-chip cooling solutions for the world’s leading data center and industrial manufacturing customers. As computing demand and industrial processes continue to grow, modern facilities require cooling infrastructure that can scale quickly, efficiently, and reliably.


Our modular approach enables high-volume production while maintaining the flexibility to customize each solution. From Central Utility Plants to Coolant Distribution Units, Stellar Energy delivers scalable cooling infrastructure designed to support the rapid expansion of data centers and mission-critical industrial operations.


Backed by deep engineering expertise and large-scale manufacturing capability, Stellar Energy helps customers deploy critical infrastructure faster and with confidence.

Summary Objective

The Application Engineer is responsible for supporting the proposal, design, and execution phases of the business as required. Assigned projects could span multiple vertical markets, including Power Generation, Oil and Gas, Data Centers, Mission Critical, District Cooling, and Combined Heat and Power.


Specific functions include (but are not limited to): analyzing project-specific weather profiles, building thermal performance modes, predicting/estimating output, efficiency, environmental impact, carrying out sensitivity analysis, technical writing, specification reviews, and equipment/process calculations.

Essential Functions

  • Undertake engineering and design work independently.
  • Analyze and calculate the optimum weather design point based on project specific location.
  • Design and specify the process around the optimum design point.
  • Develop and improve thermal performance analysis tools to understand system performance.
  • Analyze, calculate and present the financial advantages and disadvantages to leadership.
  • Present and review various technical solutions with clients.
  • Contribute to the business development process and work with engineering and operations to prepare studies on internal products and services.
  • Participate in all facets of projects and pursuits including bid support, presentation support, augmentation philosophy development and competitor evaluations.
  • Provide technical support to sales and marketing for bids and proposals, such as performance analysis, schematics, equipment selection and specification review.
  • Create ROR/ROI models to support internal bid strategies, present to external clients and to prepare external publication materials for marketing purposes.

Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Competencies

  • Technical Capacity.
  • Highly Organized.
  • Problem Solving/Analysis.
  • Financial Analysis Capabilities
  • Excellent presentations skills.
  • Excellent written and verbal communication skills, internally and externally.

Supervisory Responsibility
This position has or does not have supervisory responsibilities.

Work Location

This position will work out of our Main Office in Jacksonville, FL. This position is not approved for telecommuting or working remotely.

Work Environment
Most work is performed in an office environment. Regular trips to SEA Fabrication Shop for observation and research are required.


Physical Demands
While performing the duties of this job, the employee is regularly required to sit. The employee frequently is required to walk; use hands to finger, handle or feel; reach with hands and arms; and talk or hear. The employee is occasionally required to stand. The employee must frequently lift or move objects up to 10 pounds and occasionally lift or move objects up to 25 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision and ability to adjust focus.


Position Type/Expected Hours of Work
This is a full-time position. Days and hours of work are Monday through Friday, 8:00 a.m. to 5:00 p.m.

Travel
Anticipated up to 10% -15% travel for this position. Some occasional local day travel may also be necessary. Occasional travel to customer job sites and conferences may be required.

Required Education and Experience.

  • Bachelor of Science degree in Engineering from an accredited University with focus on thermodynamics, heat transfer, or energy systems.
  • Proficiency with Microsoft Word and PowerPoint.
  • Advanced Excel skills particularly with macros and VBA.
  • Familiarity with design procedures and inter-discipline communication.
  • Familiarity with engineering deliverables (P&IDs, Single Line Diagrams, General Arrangements, etc.).

Preferred Education and Experience

  • Proficiency with GT Pro/GT Master software, Ebsilon Professional, EtaPro, GateCcle, Pepse or similar thermodynamic modelling tools
  • 3+ years of industry experience in thermal design, engineering specifically working with Gas Turbine OEMs (preferably knowledgeable in all Gas Turbine OEMs product offerings), Utility Owners, IPPs, EPCs, Technical advisory firms etc.
  • Understanding of Thermal Power Plant processes, equipment, and the interrelationships between them.
  • Understanding of thermodynamics, heat and mass balance equations, and performance correction curves as applied to simple cycle and combined cycle gas turbine gas turbines plants.
  • Experience with thermal performance guarantee test calculation, and ASME PTC codes. Master of Science degree in Engineering from an accredited University with focus on thermodynamics, heat transfer, and energy systems
  • Familiarity with combustion turbine operation in power generation and/or oil and gas operation.
  • Familiarity with the US power and energy markets.

Work Authorization
Must be authorized to work in the USA.

Benefits Summary
We offer a competitive benefits package designed to support your health, financial well-being, and work-life balance:

  • Medical, dental, and vision insurance (multiple plan options; preventive care covered at 100% in-network)
  • Health Savings Account (HSA) with company contributions
  • 401(k) with company match (100% match up to 3% + 50% match up to 6%)
  • Company-paid life insurance and AD&D coverage
  • Short-term and long-term disability coverage options
  • Supplemental benefits including accident, critical illness, and hospital coverage
  • Wellness programs, including incentives up to $300 annually and a no-cost weight management program
  • Virtual healthcare options, including $0 virtual visits in many cases
  • Additional voluntary benefits including legal services and pet insurance
  • Competitive PTO plan for exempt and non-exempt employees

Stellar Energy Americas Inc. provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, or genetics. In addition to federal law requirements, Stellar Energy Americas Inc. complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities.