Full Stack Engineer

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

Job summary

Saal.ai is seeking a seasoned Full Stack Engineer to own the design, implementation, and delivery of production-grade full stack systems. You will ensure code quality, service reliability, and successful outcomes while engaging directly with customers and guiding external contributors.

You will design, build, and maintain microservice-based applications using Node.js, TypeScript, and React, owning REST APIs, security, and performance.

Qualifications

• Expert in Node.js, TypeScript, and React.
• Experience with microservices, API contracts, and service boundaries.
• Strong knowledge of HTTP, web architecture, and distributed systems.
• Experience with PostgreSQL or MongoDB.
• Strong testing, debugging and production support skills.
• Excellent communication with engineers, product teams, and customers.
• Demonstrated ownership beyond task execution.

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 strong attention to performance, accessibility, and maintainability
• 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 delivered by external contractors, enforcing architectural and quality standards
• Use AI-assisted development tools (e.g., Copilot, ChatGPT, Cursor) to accelerate delivery while independently validating correctness, security, and maintainability
• 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 contracts

HTTP & web architecture

PostgreSQL / MongoDB

Tools

Copilot

ChatGPT

Cursor

Job description

Own the design, implementation, and delivery of production-grade full stack systems, with responsibility for code quality, service reliability, and implementation outcomes, including direct engagement with customers and technical oversight of external contributors.

Job 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 strong attention to performance, accessibility, and maintainability
• 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 delivered by external contractors, enforcing architectural and quality standards
• Use AI-assisted development tools (e.g., Copilot, ChatGPT, Cursor) to accelerate delivery while independently validating correctness, security, and maintainability
• Participate in architectural decisions, code reviews, and technical standards definition
• Drive root-cause analysis and resolution of production issues

Key Skills

• Expert-level Node.js, TypeScript, React
• Strong experience with microservices, API contracts, and service boundaries
• Deep understanding of HTTP, web architecture, and distributed system basics
• Proven experience with PostgreSQL or MongoDB
• Strong testing, debugging, and production support skills
• Ability to communicate clearly with engineers, product teams, and customers
• Demonstrated ownership beyond task execution