Software Engineer

Ethereum Technologies; Austin (TX); On-site; USD 150,000 - 190,000; Full time

Job summary

Ethereum Technologies in Austin, TX is seeking an experienced Senior Software Engineer to design, build, and optimize large-scale web applications using Ruby on Rails. You will design APIs, work across frontend and backend, and integrate GenAI into development workflows.

The role requires strong API skills, cloud infrastructure experience, and a track record of performance optimization. You will join a collaborative team responsible for reliable data systems and scalable services in a fast-paced

Qualifications

• 6+ years of senior software engineering experience.
• 6+ years of hands-on experience with Ruby on Rails and Ruby.
• 6+ years of experience in API design and interface technologies (JSON, Protobuf, REST, RPC, XML).
• Knowledge of integrating GenAI into development workflows.

Responsibilities

• Design, develop, test, and implement large-scale web applications and full-stack components across frontend and backend.
• Build and maintain web applications using Ruby on Rails and Ruby as core technologies.
• Design and develop APIs and interface technologies (JSON, Protobuf, REST, RPC, XML).
• Design, develop, and optimize databases using PostgreSQL, MySQL, and related technologies.
• Troubleshoot performance, response times, capacity, and system limitations.
• Ensure data quality, integrity, and consistency across applications.
• Collaborate with business partners, database, system, and networking teams, and external vendors.
• Create and maintain technical documentation for developed applications.
• Integrate GenAI into software development workflows.

Skills

Ruby on Rails

API design

GenAI integration

AWS / CI/CD

Tools

GoLang

Java

Erlang

Rust

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

• Design, develop, test, and implement large-scale web applications and full-stack components across front-end GUI and backend.
• Build and maintain web applications using Ruby on Rails and Ruby as core technologies.
• Design and develop APIs and interface technologies, including JSON, ProtoBuf, REST, RPC, and XML.
• Design, develop, and optimize databases using PostgreSQL, MySQL, and related database technologies.
• Troubleshoot and resolve application issues related to performance, response times, capacity, and system limitations.
• Ensure data quality, integrity, and consistency across applications.
• Collaborate with business partners, database, system and networking teams, and external vendors.
• Create and maintain technical documentation for developed applications.
• Integrate GenAI into software development workflows.

Minimum Qualifications:

• 6+ years of senior software engineering experience.
• 6+ years of hands-on experience with Ruby on Rails and Ruby.
• 6+ years of experience in API design and interface technologies, including JSON, ProtoBuf, REST, RPC, and XML.
• Knowledge of integrating GenAI into development workflows.

Preferred Qualifications:

• Working knowledge of testing frameworks such as RSpec and MiniTest, CI tools such as CircleCI and Jenkins, and DevOps and AWS infrastructure.
• Expert knowledge of GoLang, Core Java, or similar compiled, high-concurrency, lower-level languages such as Erlang, C++, or Rust.
• Strong analytical, problem-solving, and communication skills, with the ability to collaborate effectively across teams.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.