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Full Stack Engineer
Build and ship production-scale GenAI systems and full-stack features using Ruby on Rails, React, TypeScript, and PostgreSQL for a Series B AI startup.
Full-Stack Developer (Rails/React) – Hybrid Barcelona
Builds and optimizes e-commerce platforms using Ruby on Rails and React, contributing to a custom CMS in a hybrid Barcelona office.
Full Stack Developer
Build and optimize React frontends and Ruby on Rails backends for an in-house e-commerce CMS, improving order flows, APIs, and supplier integrations while mentoring peers.
Full Stack Developer
Build and maintain full-stack web apps for wealth management using Angular frontends and Java Spring Boot backends, while collaborating in agile teams to deliver scalable digital banking solutions.
Senior Full Stack Developer
Builds and maintains a wealth-management web app using Angular/React frontends, Java/Spring Boot/Go backends, and cloud/AWS/Azure DevOps pipelines.
Lead DevOps & Infrastructure Engineer
Lead DevOps engineer responsible for AWS infrastructure, Terraform, Kubernetes (EKS), and CI/CD pipelines for a Rails monolith and Node.js microservices.
DevOps - Infrastructure Engineer
Maintain and evolve AWS and Hetzner Cloud infrastructure, automate deployments with Kubernetes and Terraform, and improve CI/CD pipelines for a Rails/Node.js SaaS used by Spanish SMEs.
Senior Backend Developer & Tech Lead en Timp
Lead backend development for Timp, a SaaS platform that helps wellness businesses manage bookings, payments and schedules using Ruby on Rails, APIs and scalable architecture.
Backend Senior Developer (Ruby on Rails)
Build and maintain a SaaS platform for freelancers and SMEs using Ruby on Rails, improving features and scalability for thousands of daily users.
Frontend Engineer & UI Designer — Developer Tools (Remote)
Builds and designs the frontend for a developer-tools API platform using Figma, Rails, Hotwire, and Tailwind, owning the dashboard, docs, and marketing experience.
Senior Full Stack Rails Engineer - 100% Remote & Flexible
Build and maintain scalable web apps using Ruby on Rails for backend and React/TypeScript for frontend, deploying on AWS with RSpec testing.
Senior Ruby on Rails Backend Architect – Remote
Architect and build backend services for a proptech platform that automates real-estate marketing workflows across 17+ countries using Ruby on Rails, PostgreSQL, and AWS.
Senior Rails + Vue Full-Stack Engineer - Remote
Builds secure file-transfer features using Ruby on Rails, Vue.js, and microservices while improving CI/CD and DevOps workflows.
Développeur·euse full stack senior
Senior full-stack developer building data-driven research platforms and APIs for an academic institution, using Python, JavaScript, and modern data tools.
Senior Full Stack Developer (Ruby on Rails/Vue.js), 80–100 %
Build and maintain secure file-transfer products using Ruby on Rails, Vue.js, and microservices, while improving CI/CD, testing, and DevOps deployments.
Senior Backend Developer
Build and secure backend services for Tether’s blockchain-based financial platform, using Node.js, microservices, and databases to support stablecoin operations and new features.
Senior Full-Stack Engineer: Rails & React for AI-Driven eLearning
Build and own end-to-end features for an AI-driven eLearning web app using Ruby on Rails and React, with REST APIs and relational databases.
Senior AI-Native Full-Stack Engineer (Remote)
Build AI-native features for a proptech data platform using Ruby on Rails, APIs, and frontend stacks while collaborating with AI engineers on agentic workflows.
Full-Stack Engineer: Build the Seamless Claiming Experience
Build and improve high-performance components for AirHelp’s travel-claiming platform using TypeScript, Node.js, and Ruby on Rails.
Senior Site Reliability Engineer (DevOps + Java) @ Square One Resources
Build and run scalable, highly available systems for a global ride-hailing platform, automating infrastructure, deployments, and incident response with Kubernetes, AWS, Java, and SRE practices.