Principal Ruby on Rails Engineer

Fifth Third Bank

. Design and implement technology solutions using modern engineering tools and Agile practices .

Posted 10/30/2026full-timeRemote • New Jersey • United StatesLead💰 $96,500 - $207,500 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and implementing technology solutions using Ruby on Rails, Terraform, and Agile practices, while ensuring compliance with IT security best practices and contributing to continuous improvement within the team.

Highest-signal resume keywords

Ruby On Rails DevelopmentTerraform Infrastructure ManagementAPI Development And IntegrationCI/CD Tools (Jenkins)Agile Software Development

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

RubyPostgreSQLActiveRecordRSpecAPI DesignUnit TestingIntegration TestingData Pipeline DevelopmentTechnical LeadershipProblem-Solving

Soft Skills

CommunicationCollaborationCoachingMentoringContinuous Improvement

Tools & Technologies

JenkinsAgile ToolsBI ToolsCommand Line ToolsSRE Practices

Industry Keywords

B2B SaaSFinancial ServicesIT Security Best PracticesRegulatory ComplianceEnterprise Solutions

Tech Stack

Tools & technologies

JenkinsPostgresRSpecRubyRuby on RailsTerraform

About the role

Key responsibilities & impact

Design and implement technology solutions using modern engineering tools and Agile practices
Develop and maintain Newline’s core RESTful API using Ruby on Rails
Work with SREs to design and implement backend infrastructure using Terraform
Work with the QA team to write unit and integration tests
Participate in software architecture discussions and code reviews
Integrate the platform with bank core services and APIs
Assist in establishing data security and information security best practices
Participate in API platform scaling and optimization sessions
Develop Newline’s internal data pipeline and BI tools
Implement and maintain new features and capabilities while continuously improving technical products and services
Build and share technical expertise with the Agile team and organization
Follow industry and organizational best practices and standards
Contribute to a culture of continuous improvement
Automate processes and create maintainable, supportable, and testable solutions
Keep up with technology trends and innovations
Provide operational support and troubleshooting for the team’s products and services
Maintain controls and documentation for compliance with company and regulatory requirements
Provide coaching, mentoring, and training for less experienced team members
Provide technical leadership and guidance to the team
Other duties as assigned

Requirements

What you’ll need

Bachelor’s degree in a relevant technology field or equivalent combination of education and work experience
Eight+ years of engineering or other IT work experience relevant to the position
Prior experience working in a technical or team lead capacity
Hands-on experience with Ruby and Ruby on Rails required
Experience working with PostgreSQL and ActiveRecord
Experience writing unit tests in RSpec
Knowledge of CI/CD tools (Jenkins)
Ability to build and consume command line tools
Experience working in an Agile software environment
Experience working with IaC deployments (Terraform) is a plus
Experience building high TPS API systems (~100 TPS) is a plus
Experience shipping highly-available (99.99%) enterprise B2B SaaS products is preferred
Experience working in a regulated financial environment is a plus
Strong problem-solving and communication skills
Willingness to work in a highly-collaborative environment
Solid understanding and significant experience with modern software development practices, tools, and/or hardware technologies
Solid understanding of IT security best practices
Experience designing, implementing, and supporting complex technical solutions
Position not eligible for immigration sponsorship

Benefits

Comp & perks

Incentive compensation plan based on company, line of business and/or individual performance
Comprehensive benefits programs supporting physical, financial, emotional and social well-being
Benefits for employees and their families
Equal employment opportunity and inclusive culture