Middle Full Stack Engineer (React.js + Node.js)

In this role, you will design and build scalable full-stack applications, shaping architecture and delivering cloud-native tools that help retail teams detect stock issues, prioritize actions, and measure improvements in product availability.

• Build end-to-end product features across React, Node.js with TypeScript, and serverless components to deliver full-stack functionality
• Improve system performance, scalability, and maintainability by optimizing frontend and backend implementations and refining architectural design
• Implement REST APIs using Node.js and TypeScript and integrate with GraphQL services where required to support application functionality
• Develop AWS Lambda functions and configure Amazon API Gateway, ensuring proper CORS handling for secure and reliable service access
• Apply effective testing practices by implementing unit, integration, and end-to-end tests to maintain application reliability and quality
• Enhance application architecture by applying clean abstractions, SOLID principles, and reduced coupling across system components
• Use observability tools including logs, metrics, and tracing to troubleshoot issues and maintain production stability
• Contribute to CI/CD pipeline improvements, participate in code reviews, and promote engineering best practices across the team

• 4+ years of commercial software development experience
• Strong proficiency with React, including practical use of Hooks such as useState, useEffect, useMemo, and useReducer while consistently applying the Rules of Hooks
• Solid understanding of React architectural patterns, including the ability to explain and compare Higher-Order Components and Hooks
• Strong proficiency with Node.js and TypeScript, including asynchronous programming with callbacks, Promises, async/await, and robust error handling within the Node.js async model
• Practical experience with building RESTful APIs and consuming GraphQL services in modern web applications
• Knowledge of SQL and NoSQL databases including PostgreSQL and MongoDB, with familiarity in indexing strategies and basic query optimization
• Hands-on experience with AWS Lambda, including configuration, handler signatures, API Gateway integrations, and CORS fundamentals
• Strong knowledge of software testing strategies, including applying the Test Pyramid with unit, integration, and end-to-end testing
• Solid understanding of clean architecture principles, including dependency injection, abstraction, coupling and decoupling, and SOLID design principles
• Clear communication skills with Intermediate strong or Upper-Intermediate level of English for effective collaboration in a multicultural team
• Advanced experience with AWS ecosystem patterns such as API Gateway integrations, retries and DLQs, and event-driven architectures (would be a plus)
• Practical experience implementing GraphQL resolvers and schema stitching (nice-to-have)
• Familiarity with event-driven systems and messaging platforms such as Kafka or AWS EventBridge and Infrastructure as Code approaches such as Terraform or similar tooling (nice-to-have)