Summary: Join a high-impact team building a Partner Marketplace platform from scratch, working across backend services, frontend applications, and cloud infrastructure. Highlights: 1. Empowers businesses to scale efficiently through exceptional services. 2. Build a Partner Marketplace platform from the ground up. 3. Opportunity to thrive, grow careers, and make a real impact. **About Scalepex** Scalepex is a nearshore partner that empowers businesses to scale efficiently and effectively through exceptional services. With a strong focus on customer success, innovation, and cultural alignment, we support companies in building high\-performing teams across industries. At Scalepex, we believe in fostering an environment where our people can thrive, grow their careers, and make a real impact. **About the Role** We are looking for a **Full Stack Developer** to join a high\-impact team building a **Partner Marketplace platform** from the ground up. This is a hands\-on full\-stack engineering role. You will be embedded in a small, senior team, working across backend services, frontend applications, and cloud infrastructure. You will own real features end\-to\-end from API contracts to UI components to deployment pipelines and you will be expected to move fast without breaking things. **Requirements** Key Responsibilities Backend Development* Scaffold and develop new Node.js services: Catalog, Order, Store, Payment, and Admin BFF * Fork and adapt existing Auth, User, Notification, and Customer Support services for the marketplace context * Extract and reuse cart logic, Stripe integration, and store management patterns from existing production code * Design and implement REST APIs with clear contracts (OpenAPI), proper versioning, authentication, and error handling * Build Ordering Platform Partner API integration for user account creation, order sync, and catalog ingestion * Implement Redis caching, Kafka event handling, and async processing patterns where appropriate * Write database migrations and manage MySQL schemas across services Frontend Development* Build the customer\-facing React/Next.js web application: product browsing, cart, checkout, order confirmation, and account management * Build the admin dashboard: order management UI, product toggle controls, customer lookup, and metrics views * Implement Stripe payment flows including payment intent creation, form handling, and webhook\-driven confirmation * Integrate Firebase Auth for authentication flows and Firebase Cloud Messaging for push notifications * Ensure mobile\-responsive, accessible, and performant UI across all surfaces * Manage client\-side state using Zustand or TanStack Query as appropriate to the data type Infrastructure \& Quality* Support CI/CD pipeline setup and maintenance using GitHub Actions and AWS services * Write unit, integration, and end\-to\-end tests targeting 80% code coverage on critical paths * Participate in code review, architectural discussions, and technical planning sessions * Contribute to observability setup: structured logging, alerting, and monitoring configuration * Support load testing, performance optimization, and UAT coordination in Phases 4 and 5 **Must have*** 3–5 years of experience as a Full Stack Developer * Strong experience with **Node.js \+ React** * Experience building **REST APIs** * Solid understanding of **microservices architecture** * Experience with **SQL databases (MySQL)** * Familiarity with **cloud environments (AWS)** * Experience with **payment integrations (Stripe is a plus)** **Nice to Have*** Marketplace or e\-commerce experience * Kafka or event\-driven systems * Kubernetes * Elasticsearch / OpenSearch * Terraform or Infrastructure as Code **Benefits** * Contractor scheme * 100% Remote