Senior/Lead Fullstack Engineer (React/Node.js)

TL;DR

Senior/Lead Fullstack Engineer (React/Node.js): Designing and building scalable cloud-native applications for retail inventory and stock management with an accent on system performance, serverless architecture, and on-shelf availability tools. Focus on optimizing frontend/backend implementations, developing AWS Lambda functions, and ensuring system reliability through robust testing and observability.

Location: Remote or Office in Ukraine

Company

hirify.global is a leading global digital transformation company providing innovative software development and technology services.

What you will do

• Build end-to-end product features using React, Node.js, TypeScript, and serverless components.
• Implement REST APIs and integrate with GraphQL services to support application functionality.
• Develop AWS Lambda functions and configure Amazon API Gateway with proper CORS handling.
• Optimize system performance, scalability, and maintainability by refining architectural design.
• Apply the Test Pyramid strategy by implementing unit, integration, and end-to-end tests.
• Contribute to CI/CD pipeline improvements and promote engineering best practices through code reviews.

Requirements

• Strong proficiency with React and Hooks (useState, useEffect, useMemo, useReducer).
• Expertise in Node.js and TypeScript, including advanced asynchronous programming and error handling.
• Hands-on experience with AWS Lambda and API Gateway integrations.
• Strong knowledge of software testing strategies and the Test Pyramid.
• English: Proficiency required for effective collaboration in distributed multicultural teams.
• Location: Must be based in Ukraine.

Nice to have

• Knowledge of SQL and NoSQL databases, specifically PostgreSQL and MongoDB.
• Experience with Docker and Kubernetes for local development and CI environments.
• Familiarity with event-driven systems and messaging platforms such as Kafka or AWS EventBridge.