Senior Software Engineer - AI-Driven Rails on AWS

Beam Benefits; Northern Ireland; Hybrid; GBP 70,000 - 120,000; Full time

Job summary

Beam Benefits, part of Principal Financial Group, seeks a senior software engineer to lead by example and build scalable benefits platforms. You’ll own design and development across the full stack, leveraging Ruby on Rails, React and AWS, with AI-assisted tooling to accelerate delivery while maintaining security and reliability.

The role is hands-on (80–90%), with code review, mentorship, and architecture guidance.

Qualifications

• Extensive enterprise-level engineering experience in designing, developing, testing and supporting software applications.
• Strong experience with AWS cloud-based technology.
• Experience incorporating AI coding assistants (e.g., Cursor, Claude) into daily workflows to enhance delivery speed, test generation, and code quality.
• Proven experience designing solution architectures and building scalable web applications, ideally with Rails and a modern frontend such as React.
• Ability to break down complex problems, reduce ambiguity, and drive solutions forward.

Responsibilities

• Own the design and development of scalable software solutions across the full development lifecycle.
• Build and scale applications using Ruby on Rails, React, and AWS cloud architecture, championing AI-assisted development.
• Partner with product managers, designers, engineers to refine requirements and deliver roadmap initiatives.
• Provide senior technical leadership by establishing development approaches, reviewing code, and mentoring engineers.
• Ensure software reliability via automated testing, code reviews, performance planning, and secure coding practices.

Skills

Enterprise-scale software development

AWS cloud

Mentoring

Communication

Leadership

Tools

Ruby on Rails

React

AWS

CI/CD tooling

Job description

Beam Benefits, part of Principal Financial Group, seeks a senior software engineer to lead by example and build scalable benefits platforms. You’ll own design and development across the full stack, leveraging Ruby on Rails, React and AWS, with AI-assisted tooling to accelerate delivery while maintaining security and reliability.

The role is hands-on (80–90%), with code review, mentorship, and architecture guidance.