Full-Stack Engineer: APIs, Microservices & UI

Saal.ai; Abu Dhabi; On-site; AED 300,000 - 550,000; Full time

Job summary

Saal.ai is seeking an experienced Senior Full-Stack Engineer in Abu Dhabi to own and deliver production-grade systems. The role focuses on building scalable microservices with Node.js, TypeScript, and React, while ensuring API quality, security, and performance across the stack.

You will collaborate with engineers, product teams, and customers, driving end-to-end ownership from design through post-production support.

Qualifications

• Expert-level proficiency in Node.js, TypeScript, and React.
• Experience with microservices, API contracts, and service boundaries.
• Strong understanding of HTTP, web architecture, and distributed systems.

Responsibilities

• Design, build, and maintain scalable microservice-based applications using Node.js, TypeScript, and React.
• Own REST API design, authentication/authorization (JWT, OAuth2, SSO), error handling, logging, and service contracts.
• Build and maintain production-ready React UIs with performance and accessibility focus.
• Design and optimize data models using PostgreSQL and MongoDB, including migrations and performance tuning.
• Take end-to-end ownership of implementations, releases, and post-production stability.
• Review, guide, and validate code from external contractors, enforcing standards.
• Use AI-assisted tools to accelerate delivery while validating correctness and security.
• Participate in architectural decisions, code reviews, and technical standards definition.
• Drive root-cause analysis and resolution of production issues.

Skills

Node.js

TypeScript

React

Microservices

API design

PostgreSQL

MongoDB

Testing

Production support

Communication

Job description

Saal.ai is seeking an experienced Senior Full-Stack Engineer in Abu Dhabi to own and deliver production-grade systems. The role focuses on building scalable microservices with Node.js, TypeScript, and React, while ensuring API quality, security, and performance across the stack.

You will collaborate with engineers, product teams, and customers, driving end-to-end ownership from design through post-production support.