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Builds and maintains web apps using HTML, CSS, JavaScript, and open-source stacks like Apache, MySQL, PHP, and Ruby on Rails in a collaborative product team.
Build and maintain a high-integrity custody ledger and settlement services for regulated financial infrastructure, including transaction flows, audit trails, and bank-grade integrations.
Senior Backend Developer builds and secures scalable Node.js services for Tether’s fintech and crypto platforms, focusing on APIs, databases, and blockchain integrations.
Part-time backend developer building and securing server-side components for web apps using Java, Python, or Ruby on Rails.
Build and maintain secure, scalable backend services in Node.js for a fintech/crypto platform, collaborating with cross-functional teams to deliver new features and ensure system reliability.
Staff Full-Stack Engineer builds and shapes a marketing and customer engagement platform using Ruby on Rails and Vue.js, with AI-assisted development for real-time personalization in MarTech and Payments.
Staff Full-Stack Engineer building AI-driven marketing and payments features with Ruby on Rails backend and Vue.js frontend in Medellín.
Staff Full-Stack Engineer building AI-powered marketing and customer engagement features using Rails backend and Vue frontend in Medellín.
Build and scale a K-12 education platform using Vue.js and Ruby on Rails, owning architecture, performance, and shared infrastructure while collaborating with product and design teams.
Build and maintain full-stack web apps using Ruby on Rails, PostgreSQL, React, and TypeScript, deploying to AWS.
Senior engineer building and maintaining web apps with React and Python, collaborating with global teams to deliver scalable solutions.
Build customer-facing web apps with Ruby on Rails and PostgreSQL, focusing on clean UI/UX and modern front-end tooling.
Build and maintain features for a global fundraising platform using Ruby on Rails, collaborating with product and design teams to deliver clean, tested code and intuitive interfaces.
Builds and maintains Ruby on Rails applications for clients, focusing on performance and code quality with 5+ years of experience.
Build and maintain full-stack web apps using Ruby on Rails for the backend and React/TypeScript for the frontend, deploying on AWS.
DevOps Engineer maintains and scales AWS infrastructure for MediaStore, a B2B SaaS platform serving studios and broadcasters, using Kubernetes, PostgreSQL, and CI/CD pipelines.
Builds Python-based data pipelines and AI/ML services for global clients, integrating big data, analytics, and custom web apps in a fast-paced engineering services firm.
Build and scale an on-premise Kubernetes-based data platform for a global payments unicorn, blending SRE, data, and ML engineering to support real-time transactions and GenAI services.
Builds and scales Ruby on Rails healthcare applications and optimizes CI/CD pipelines in a hybrid role.
Build backend services and APIs in Ruby, Go, TypeScript and Elixir to embed global connectivity into fintech and mobility platforms, while migrating a monolith toward a distributed system.
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