Sergio Eduardo Peña
Ruby On Rails Developer
Professional profile
Senior Software Engineer with 4+ years of experience building scalable and maintainable web applications, specializing in backend architecture with Ruby on Rails and microservices. Proven ability to lead development efforts, integrate complex systems, and deliver high-impact features in agile environments
Work experience
Developed responsive UIs with Vue.js, maintained AWS-based infrastructure (EC2, RDS, S3), CI/CD pipelines, and engineered AI assistants for business workflows.
Major achievementImplemented SOLID principles, TDD, AWS infrastructure, and integrated AI with openai and langchain.rb. Developed advanced prompt engineering and AI-powered educational features.
Developed high-performance APIs, contributed to frontend with React, implemented gRPC APIs, and worked in an international team.
Major achievementExcelled in backend microservices, TDD with RSpec/Cucumber, API development with Grape, and frontend with React/Redux/TypeScript.
Developed robust full-stack apps, integrated APIs, ensured reliability with monitoring tools, and promoted Agile project management.
Major achievementLed full-stack app development, managed APIs, resolved bugs with New Relic/Grafana, and worked in Agile Scrum teams.
Education experience
St petersburg polytechnic university | Undergraduate
