Senior Ruby on Rails Developer

Caterpillar Inc.•Kennett Square, PA

6d•$112,710 - $183,140•Onsite

About The Position

Tangent Energy Solutions, a wholly owned subsidiary of Caterpillar, is seeking an experienced Senior Ruby on Rails Developer. This role involves working with data-intensive, business-oriented web applications and deploying infrastructure and code at scale to AWS cloud services. The position is full-time and requires working in the office in Kennett Square, Pennsylvania, Monday through Friday.

Requirements

Expert-level knowledge of the Rails framework (version 7+) and its core libraries
A strong command of automated testing strategies and tools (Rspec, Capybara, etc.)
Experience with and commitment to automated testing for both front- and back-end functionality
Strong understanding of web application architecture, object-oriented programming, and design patterns
Proficiency using git and experience with GitHub Enterprise and GitHub actions
Applied understanding of agentic development and experience managing and reviewing the work of AI-assisted developers
Excellent communication and interpersonal skills
Knowledge of software development tools and activities; ability to produce software products or systems in line with product requirements.
Knowledge of software development life cycle; ability to use a structured methodology for delivering and managing new or enhanced software products to the marketplace.
Knowledge of software integration processes and functions; ability to design, develop and maintain interfaces and linkage to alternative platforms and software packages.
Knowledge of software product design; ability to convert market requirements into the software product design.
Knowledge of technical aspects of a software products; ability to design, configure and integrate technical aspects of software products.
Knowledge of software product testing; ability to design, plan, and execute testing strategies and tactics to ensure software product quality and adherence to stated requirements.

Nice To Haves

9+ years of recent professional experience in full-stack Ruby on Rails development
Experience deploying containerized Rails applications at scale to AWS cloud services
Experience with IoT systems and edge computing
Expertise in Data Streaming technologies such as Flink, Kafka, Kinesis, etc
Understanding of common ML workflows and off-the-shelf ML tools, especially in the AWS ecosystem
Familiarity with Ancillary Services in the energy market
Experience with generator and energy storage control systems

Responsibilities

Design, develop and maintain Ruby on Rails applications in the energy space
Collaborate with business and operational stakeholders to define, plan, and deliver new features
Design and implement ML-ready data pipelines
Participate in the design and architecture of new systems and applications
Ensure code quality and maintainability by writing tests, conducting code reviews, and following industry best practices
Assist in shared DevOps duties including infrastructure management and code deployment
Rearchitect and refactor core application components for efficiency improvements and to reduce technical debt
Troubleshoot and resolve complex technical issues
Provide guidance and mentorship to junior developers
Use AI coding tools to analyze, specify, and implement complex new software features
Develop AI Skills and tools to improve the efficiency of our development process, to explore new avenues for development, and to document existing processes and code