I'm a results-driven Ruby Software Engineer with 9+ years of experience delivering high-performance, cloud-native applications using Ruby (Rails, Sinatra) and Node.js. I design microservices, automation pipelines, and AI/ML-powered systems on AWS, Azure, and GCP. I also lead Agile teams, implement CI/CD pipelines, and optimize large-scale systems for performance, reliability, and scalability. I enjoy translating complex business requirements into measurable technical solutions that boost time-to-market, efficiency, and user experience.…

Sergi Arcusa

I'm a results-driven Ruby Software Engineer with 9+ years of experience delivering high-performance, cloud-native applications using Ruby (Rails, Sinatra) and Node.js. I design microservices, automation pipelines, and AI/ML-powered systems on AWS, Azure, and GCP. I also lead Agile teams, implement CI/CD pipelines, and optimize large-scale systems for performance, reliability, and scalability. I enjoy translating complex business requirements into measurable technical solutions that boost time-to-market, efficiency, and user experience.…

Available to hire

I’m a results-driven Ruby Software Engineer with 9+ years of experience delivering high-performance, cloud-native applications using Ruby (Rails, Sinatra) and Node.js. I design microservices, automation pipelines, and AI/ML-powered systems on AWS, Azure, and GCP.

I also lead Agile teams, implement CI/CD pipelines, and optimize large-scale systems for performance, reliability, and scalability. I enjoy translating complex business requirements into measurable technical solutions that boost time-to-market, efficiency, and user experience.

See more

Skills

Experience Level

AWS
Expert
Ruby on Rails
Expert
JavaScript
Expert
Node.js
Expert
Ruby
Expert
Docker
Expert
TensorFlow
Expert
Azure
Expert
Python
Expert
SQL
Expert
Jira
Expert
Kubernetes
Expert
MongoDB
Expert
PostgreSQL
Expert
Vue.js
Expert
AngularJS
Expert
Redis
Expert
PyTorch
Expert
MySQL
Expert
GraphQL
Expert
Google Cloud
Expert
Django
Expert
Selenium
Intermediate
Elasticsearch
Intermediate
TypeScript
Intermediate
See more

Work Experience

Senior Software Engineer at BBVA
September 1, 2025 - September 1, 2025
Developed high-performance Ruby on Rails microservices integrated with Node.js endpoints and Python AI/ML pipelines, delivering predictive analytics and recommendation systems, reducing operational latency by 45% and improving reliability for enterprise applications deployed on AWS and Azure. Designed and implemented OAuth 2.0 and JWT-based authentication frameworks with RBAC and audit logging, standardizing security practices across internal and customer-facing applications. Led frontend modernization using React with component-driven architecture and Redux state management, improving UI responsiveness and reducing defect rates by 50%. Built and deployed Python AI/ML models using TensorFlow, Scikit-learn, and Pandas, integrating predictive analytics for recommendation systems and anomaly detection, increasing upsell conversion by 20%. Architected automated CI/CD pipelines using Jenkins, GitHub Actions, Docker, and Kubernetes, incorporating automated testing, containerized staging envi
Senior Software Engineer at Camunda
May 1, 2021 - May 1, 2021
Built distributed logistics platforms using Ruby on Rails microservices, Node.js, and Python AI modules, processing millions of shipment events daily with guaranteed delivery through Kafka and RabbitMQ. Developed predictive route optimization models in Python (Pandas, NumPy, TensorFlow), improving delivery timeliness by 24% and fuel efficiency by 15%. Refactored legacy PHP and Java modules into containerized Ruby and Node.js microservices, deployed on AWS ECS with Terraform, reducing maintenance costs by 50% and improving scalability. Engineered hybrid frontend dashboards using React + Angular, integrating WebSocket-based real-time shipment tracking, dynamic ETA notifications, and responsive UI design. Implemented automated CI/CD pipelines using Jenkins and Docker, including automated build, test, and security scanning, improving deployment reliability and accelerating release cycles. Optimized PostgreSQL and MongoDB queries, implemented caching with Redis, and improved analytics repor
Software Developer at Indra Sistemas
September 1, 2018 - September 1, 2018
Developed backend services using Ruby on Rails and Node.js, implementing RESTful APIs, modular architecture, and robust error handling, reducing server load by 35% for multi-tenant health insurance platforms. Built Vue.js frontends with reusable components, interactive dashboards, and cross-browser compatibility, improving user satisfaction and reducing defect reports by 40%. Developed AJAX-powered dashboards and Node.js APIs, enabling real-time monitoring of patient care and operational KPIs, improving operational decision-making speed by 50%. Architected PostgreSQL and MySQL databases with optimized schemas, indexing strategies, stored procedures, and query tuning, improving query performance by 45%. Integrated multiple third-party APIs into Ruby backend services, automating workflows and reducing manual errors. Implemented unit and integration tests with RSpec and PyTest, enforcing code quality standards and reducing post-deployment defects by 40%. Mentored junior developers and col

Education

Bachelor of Science (B.Sc.), Computer Science at University of Barcelona
January 1, 2012 - January 1, 2016
Bachelor of Science (B.Sc.), Computer Science at University of Barcelona
January 1, 2012 - January 1, 2016

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services

Skills

Experience Level

AWS
Expert
Ruby on Rails
Expert
JavaScript
Expert
Node.js
Expert
Ruby
Expert
Docker
Expert
TensorFlow
Expert
Azure
Expert
Python
Expert
SQL
Expert
Jira
Expert
Kubernetes
Expert
MongoDB
Expert
PostgreSQL
Expert
Vue.js
Expert
AngularJS
Expert
Redis
Expert
PyTorch
Expert
MySQL
Expert
GraphQL
Expert
Google Cloud
Expert
Django
Expert
Selenium
Intermediate
Elasticsearch
Intermediate
TypeScript
Intermediate
See more