Senior Backend Developer

6 days ago

Cairo, Cairo, Egypt Smartlines Sa Full time 120,000 - 240,000 per year

Senior Backend Developer

About the Company

Asus Holding for Cards is a rapidly expanding Saudi company specializing in gaming cards and digital commerce solutions.

Headquartered in SODIC Business Center,5th Settlement, Egypt, Asus Holding oversees three innovative subsidiaries:


• Purple Cards – a leader in online gaming card sales and digital top-up services.


• أشحن (Ashhan) – a fast-growing e-recharge and payment gateway platform.


• SmartLine – providing smart digital integration and technology solutions.

With continuous growth across the region, Asus Holding is committed to innovation, scalability, and delivering exceptional digital experiences.

Role Overview

We are looking for a Senior Backend Developer to join our growing technology team. The ideal candidate is a problem solver with strong experience in database optimization, microservices architecture, and secure payment integrations.

Key Responsibilities:


• Design, develop, and maintain scalable backend services and APIs.


• Optimize database performance for PostgreSQL and Microsoft SQL Server.


• Implement caching mechanisms using Redis to enhance performance.


• Build and maintain microservices using C Sharp (.NET Core) or Spring Boot (Java).


• Integrate and secure payment gateways.


• Ensure backend systems comply with cybersecurity best practices and standards.


• Collaborate with frontend, DevOps, and QA teams to deliver high-quality solutions.

Requirements
:


• Minimum of five years of backend development experience.


• Strong proficiency in C Sharp or Spring Boot (Java).


• Advanced SQL skills and proven experience in database tuning.


• Hands-on experience with Redis, microservices, and API design.


• Knowledge of payment systems, authentication, and security protocols such as OAuth2 and JWT.


• Experience with Docker, Git, and CI/CD pipelines is a plus.

Nice to Have


• Experience in cloud-based environments (AWS, Azure, or GCP).


• Familiarity with DevOps practices and infrastructure automation.

Why Join Us:

Work on challenging and high-performance systems.

Competitive compensation and growth opportunities.

Collaborative, innovative, and professional environment.

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