Full-Stack Dev for POS & Payments Platform

Ethara; Abu Dhabi; On-site; AED 240,000 - 320,000; Full time

Job summary

Ethara is seeking an experienced Full-Stack Developer to design, develop and maintain enterprise web, backend and mobile applications, focusing on a new POS platform. You will own end-to-end solutions across frontend, backend and database layers, integrating with payment providers and hardware.

The role requires strong expertise in C#/.NET, React, TypeScript, SQL and modern software engineering practices, with emphasis on POS systems, payments and AI-assisted workflows.

Qualifications

• 4+ years of experience building production-grade full-stack apps.
• Strong experience in C#/.NET, ASP.NET Core Web API, EF Core and REST API development.
• Strong proficiency in React, TypeScript, JavaScript and modern frontend frameworks.
• 5+ years with .NET and 5+ years with modern React as per JD.
• Experience with SQL Server and PostgreSQL; design, queries and indexing.
• Knowledge of Redis, real-time services, SignalR/WebSockets and background processing.
• Experience with payment gateway integrations and POS systems.
• Familiarity with PCI DSS and secure payment architecture.
• Experience integrating POS hardware and Android terminals is a plus.
• Azure, Azure DevOps, Git and CI/CD pipelines exposure.
• AI-assisted development tools experience (Claude Code, Cursor, Copilot) for structured workflows.
• Ability to craft technical specs and review AI-generated code.

Responsibilities

• Design, develop, test and maintain enterprise web apps, REST APIs, real-time services and mobile apps.
• Deliver end-to-end features across frontend, backend and database layers; ensure quality via tests.
• Develop and enhance POS functionality including payments, VAT, refunds and reconciliations.
• Integrate payment gateways, card terminals, wallets and Android Tap to Pay.
• Build scalable backend services, APIs and SQL databases for high-volume transactions.
• Create responsive frontend apps using React and TypeScript.
• Maintain secure coding practices and RBAC, logging and secrets management.
• Keep CI/CD pipelines, deployment, monitoring and production stability.

Skills

C#/.NET

ASP.NET Core Web API

Entity Framework Core

REST API development

React

TypeScript

JavaScript

Real-time services

Security & PCI DSS

Azure DevOps

Git

CI/CD pipelines

AI-assisted development tools

Android Kotlin

Kotlin Jetpack Compose

PostgreSQL

SQL Server

Redis

WebSockets/SignalR

Education

Bachelor's degree in Computer Science or related discipline

Tools

Azure

Azure DevOps

Git

CI/CD tooling

Job description

Ethara is seeking an experienced Full-Stack Developer to design, develop and maintain enterprise web, backend and mobile applications, focusing on a new POS platform. You will own end-to-end solutions across frontend, backend and database layers, integrating with payment providers and hardware.

The role requires strong expertise in C#/.NET, React, TypeScript, SQL and modern software engineering practices, with emphasis on POS systems, payments and AI-assisted workflows.