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Backend Engineer (Node.JS / Typescript) - Web3 / DeFi
Build and maintain backend services for a DeFi protocol using Node.js and TypeScript, integrating with smart contracts via Viem/ethers.js and optimizing SQL/GraphQL APIs.
C Backend Developer
Develop and maintain C# backend services and APIs for financial platforms, integrating systems and ensuring performance, security, and scalability in a wealth management context.
Backend Developer
Build and scale backend services for a martial arts SaaS platform using Node.js, TypeScript, and MySQL, with AWS integrations and future AI features.
Software Engineer
Build and maintain Java microservices and APIs using Spring Boot, AWS cloud services, and CI/CD pipelines for scalable backend systems.
Python Developer
Senior full-stack engineer building backend and frontend systems in Python and JavaScript/React, deploying on AWS/GCP and maintaining CI/CD pipelines for scalable business applications.
Web Engineer
Build full-stack web features for client projects and internal tools using React, Node.js, and Next.js, heavily leveraging AI coding assistants while ensuring production-grade quality and edge-case handling.
Senior Web Engineer
Senior full-stack engineer building web apps and internal tools for client projects using React, Node.js, and AI coding assistants.
Senior Data QA Engineer – Automated Data & API Testing
Designs and runs automated tests for data pipelines, APIs, and dashboards to ensure reports and metrics are accurate before they reach users.
Senior QA Engineer — Data Platform - Contractor role
Senior QA Engineer owns data correctness for analytics pipelines, warehouse models, and reports, validating metrics against raw sources and automating quality checks with SQL and tools like Soda and Playwright.
Data Engineer
Build and maintain scalable data pipelines and infrastructure to power analytics and ML systems, ensuring high-quality, production-ready datasets.
Fullstack Developer
Build and maintain full-stack web and mobile apps using React/Vue, REST/GraphQL APIs, and hybrid mobile frameworks like React Native or Flutter.
Fullstack Developer (Project Based)
Build and maintain full-stack web apps with Next.js, React, TypeScript, and PostgreSQL, focusing on performance, SSR/SSG, and CI/CD pipelines.
Lead Full-Stack Engineer (Mobile)
Lead a mobile-first food-tech platform: build and scale the mobile app and backend for ordering, payments, loyalty, and promotions.
Full Stack Engineer - Qatar Onsite
Full Stack Engineer builds and maintains a secure, on-premises enterprise platform using SQL Server, Node.js/Express, React, and React Native in a locked-down Windows environment.
Front-End Developer
Builds responsive web apps with React and TypeScript, integrating REST APIs and optimizing UI performance while collaborating with cross-functional teams.
Full Stack Software Engineer - Palma de Mallorca
Build and maintain full-stack features for an ad-tech platform using React, TypeScript, Node.js, and PostgreSQL, collaborating with global teams to deliver scalable solutions.
Senior Full Stack Engineer
Build and modernize Duetto’s revenue platform, migrating a monolith to Java/Spring Boot microservices and TypeScript/React frontends while integrating AI into daily engineering workflows.
Senior Frontend Developer (React)
Build and maintain modern, responsive web interfaces in React for thousands of users, focusing on performance, accessibility, and clean component architecture.
Frontend Developer
Build and maintain a design system and reusable components in React/TypeScript, integrating real-time APIs and GraphQL for a SaaS product.
Full Stack Web Developer (Backend Focus) – Multi-cloud GenAI Platform / Secure GPT
Builds and maintains a secure, multi-cloud GenAI platform (Azure/AWS/GCP) with Secure GPT features like RAG, agents, and document processing using Node.js, React, and cloud-native tools.