Full-Stack Engineer

Jobs for Humanity; United States; Remote; USD 50,000 - 70,000; Full time

Job summary

Jobs for Humanity in Beirut, Lebanon seeks a Full-Stack Engineer to build our web application end‑to‑end, owning both the user-facing product and the backend. You will work closely with the AI Engineer to weave real-time AI interactions into a smooth, reliable experience.

You will ship frontend components and APIs, design a real-time conversational UI, and develop authentication, session management, and data persistence.

Qualifications

• 4+ years of full-stack software engineering experience.
• Proficiency in TypeScript/JavaScript and frontend React.
• Experience with Node.js or Python backend and APIs.

Responsibilities

• Build and ship web app across frontend and backend.
• Design real-time conversational UI with React and WebSockets.
• Develop backend services: auth, sessions, persistence, integrations.
• Integrate AI and multi-agent services with AI Engineer.
• Design scalable databases and API contracts.
• Own performance, reliability, and security across the stack.
• Translate requirements into tested features.
• Move fast in an early-stage environment with quality.

Skills

Full-stack

TypeScript/JavaScript

React

Node.js

APIs

Databases

WebSockets

Security

AI integration

Tools

PostgreSQL

MongoDB

Python

Job description

Full-Stack Engineer

Category: Information Technology

Location: Beirut, Beirut Governorate, Lebanon

Employment Type: Full-time, Mid-Senior Level

Remote: Yes

About the Role

We're looking for a Full-Stack Engineer to build our web application end-to-end and bring the MVP to life. You'll own the user-facing product and the backend that supports it, working closely with the AI Engineer to weave intelligent, real-time AI interactions into a smooth, reliable experience.

What You’ll Do

• Build and ship the web application across frontend and backend, from UI components to APIs and data models
• Design and implement a responsive, real-time conversational interface (React, WebSockets/SSE)
• Develop backend services: authentication, session management, data persistence, and third‑party integrations
• Integrate AI and multi‑agent services into the product in partnership with the AI Engineer
• Design and maintain databases and API contracts that scale with product complexity
• Own performance, reliability, and security across the stack
• Translate product and design requirements into well‑tested, maintainable features
• Move fast in an early‑stage environment, balancing speed with quality

Job Qualifications

• 4+ years of full‑stack software engineering experience
• Strong proficiency in TypeScript/JavaScript and a modern frontend framework (React preferred)
• Solid backend experience (Node.js, Python, or similar) building and consuming APIs
• Experience designing relational and/or NoSQL data models (PostgreSQL, MongoDB, etc.)
• Familiarity with real‑time communication patterns (WebSockets, SSE) and streaming UIs
• Understanding of authentication, authorization, and secure data handling
• Experience integrating third‑party APIs, ideally including LLM or AI services
• Comfort owning features end‑to‑end with minimal oversight