Senior/Lead Fullstack Engineer (Node+React+AI)

Location: Ukraine; work type: remote or office

Company

hirify.global provides software development and engineering services for enterprise clients.

What you will do

• Design and build scalable full-stack, cloud-native applications that transform retail operational and inventory data into actionable products.
• Develop end-to-end features with React, Node.js, TypeScript, and serverless AWS services.
• Design REST APIs, integrate GraphQL services, and implement AWS Lambda and API Gateway integrations.
• Improve frontend and backend performance, scalability, maintainability, and architectural decoupling.
• Build unit, integration, and end-to-end tests following the Test Pyramid strategy.
• Monitor production systems, troubleshoot reliability issues, enhance CI/CD pipelines, and participate in code reviews.

Requirements

• 7+ years of commercial software development experience with full-stack applications.
• Strong proficiency with React, Node.js, and TypeScript.
• Experience with RESTful APIs, GraphQL integrations, event-driven architectures, AWS Lambda, API Gateway, retries, dead-letter queues, and serverless integration patterns.
• Knowledge of PostgreSQL and MongoDB, including indexing and query optimization.
• Strong understanding of automated testing, clean architecture, dependency injection, SOLID principles, and component decoupling.
• Upper-Intermediate English required for communication within a cross-functional team.

Nice to have

• Experience with AI engineering tools, AI-assisted development workflows, or evaluation harnesses.

Culture & Benefits

• Remote or office work format in Ukraine.
• Collaboration with a cross-functional engineering team.
• Participation in code reviews and shared engineering practices.