Senior Ruby on Rails Software Engineer

Xaxis Solutions; Austin (TX); On-site; USD 140,000 - 190,000; Full time

Job summary

XAXIS Solutions Inc. in Austin, TX is seeking a senior software engineer to design and build scalable full‑stack applications.

You will develop robust APIs, optimize performance, and troubleshoot complex systems while collaborating with business and technology teams to deliver reliable software. The ideal candidate has 6+ years of hands‑on Ruby on Rails experience, strong API design skills (JSON, ProtoBuf, REST, RPC, XML), and familiarity with GenAI integration into development workflows.

Qualifications

• 6+ years of senior software engineering experience.
• 6+ years hands-on experience with Ruby on Rails and Ruby.
• Expertise in API design with JSON, ProtoBuf, REST, RPC, and XML.
• Database design and development with PostgreSQL or MySQL.
• Strong application architecture, performance optimization, and troubleshooting skills.
• Experience integrating GenAI into software development workflows.

Responsibilities

• Design and develop scalable full-stack applications.
• Build and evolve APIs.
• Improve application performance.
• Troubleshoot complex issues.
• Collaborate with business and technology teams.

Skills

Ruby on Rails

Ruby

API design

PostgreSQL

MySQL

Performance optimization

GenAI integration

Troubleshooting

Tools

RSpec

CircleCI

Jenkins

AWS

Job description

• 6+ years of senior software engineering experience.
• 6+ years of hands‑on experience with Ruby on Rails and Ruby.
• Expertise in API design and technologies such as JSON, ProtoBuf, REST, RPC, and XML.
• Database design and development experience with PostgreSQL, MySQL, or similar databases.
• Strong application architecture, performance optimization, and troubleshooting skills.
• Knowledge of integrating Generative AI (GenAI) into software development workflows.

Preferred Skills:

• RSpec, MiniTest, CircleCI, Jenkins, DevOps, and AWS.
• GoLang, Java, Erlang, C++, Rust, or other high-concurrency programming languages.
• Strong analytical, problem-solving, and communication skills.

The role involves designing and developing scalable full-stack applications, building APIs, improving application performance, troubleshooting technical issues, and collaborating with business and technology teams.