Senior Backend / Full-Stack Engineer (E-commerce)

We are expanding our engineering team in **Brazil** and are looking for a **senior full\-stack engineer** with a strong backend focus who will take ownership of backend systems while working directly with clients. This role requires an engineer who combines system architecture, strong backend engineering, and a deep understanding of modern frontend capabilities. You will be working closely with our frontend team, expanding the backend team and helping shape backend engineering practices going forward. This is a remote position, open to candidates located in **Brazil** , to work with all our global teams. All communications and collaboration will be conducted in **English** . **About you** **Core expectations** * Strong sense of ownership and ability to take responsibility for systems end\-to\-end * Ability to work directly with clients (professional English required) * Senior full\-stack engineer with strong backend focus * Strong ecommerce experience and understanding of ecommerce flows and business processes * Strong understanding of cloud architecture and scalable systems * Strong experience with in\-memory databases and caching layers * Good understanding of modern browser capabilities, including IndexedDB, Web Workers, Frontend/backend interaction patterns * Strong understanding of AI coding assistants, including: What they can and cannot do, When they can safely accelerate development, When engineering judgement must override them **Technology stack** Backend * PHP (primary) * Python (nice to have) Frontend * JavaScript / TypeScript * React Cloud \& Infrastructure * AWS * Terraform Databases * MySQL / MariaDB * Redis / Dragonfly * DynamoDB APIs \& Pipelines * SQL pipelines * AWS Lambda * API Gateway Tooling * GitLab * CI/CD pipelines E\-commerce * Experience with e\-commerce platforms such as: * Magento * Custom e\-commerce systems * Open\-source e\-commerce platforms **What this role involves** * Designing and owning backend architecture * Building scalable e\-commerce systems * Working closely with frontend engineers on complex browser\-driven workflows * Maintaining high engineering discipline and system reliability * Working directly with clients to translate business processes into robust technical solutions * Using AI coding assistants responsibly to accelerate development without sacrificing engineering quality **Key traits we value** * Ownership mindset * Strong engineering judgement * Ability to reason about systems end\-to\-end * Discipline around architecture, data structures, and business processes * Working at Visualr * Join a dynamic, collaborative environment with skilled colleagues, working on complex projects within a multinational group, with competitive compensation and growth opportunities across countries. **What to expect** * Be part of a dynamic and secure culture, with highly motivated, skilled colleagues, and a focus on teamwork; * Work on complex and sophisticated projects; * Respectful, collaborative, light, and fun environment; * Competitive salary and benefits package aligned with the Brazilian market; * Be part of a multinational business group, with growth opportunities in various areas and countries. **Application Process** We want to work with people who are passionate about making an impact and who are excited to join our agency. If your values align with Visualr and you have the skills, experience, composure, creative flair and desire to succeed, we would love to hear from you. To apply, visit the job description page and apply now. https://visualr.jobs.personio.com/job/2569048?language\=en