Senior Full-Stack .NET Developer

Responsibilities

• Design, analyze, and build scalable microservices-based systems for an advanced CRM and Sales Intelligence Platform
• Develop and maintain high-performance APIs using .NET Core
• Implement complex business logic related to sales pipelines, leads, and marketing flows
• Integrate third-party services including payment gateways, WhatsApp, and email infrastructure
• Incorporate AI capabilities into workflows using OpenAI or similar APIs
• Build functional, data-driven user interfaces and dashboards using modern frontend frameworks
• Make high-level architectural decisions to ensure system scalability and maintainability

Requirements

• 5+ years of professional software engineering experience
• Expert proficiency in .NET (ASP.NET Core, Web API, MVC)
• Proven experience with Microservices Architecture and Clean Architecture/SOLID principles
• Advanced skills in SQL Server (design and optimization) and MongoDB
• Hands-on experience with Redis, Message Brokers (RabbitMQ/Kafka), and background services
• Practical experience with AI API integration (OpenAI)
• Strong frontend skills in JavaScript (ES6+), HTML, CSS, and at least one framework (React, Vue, or Angular)
• Experience implementing authentication systems (JWT, OAuth) and payment gateway integrations

Preferred Qualifications

• Experience building CRM systems or complex data dashboards
• Proven track record of working on high-scale, high-traffic systems
• A strong portfolio or GitHub repository demonstrating advanced engineering capabilities

About the Company

Persian Horizon is building a sophisticated CRM and Sales Intelligence Platform. We are looking for high-level engineers who possess an ownership mindset and the ability to think beyond simple feature coding to build robust, enterprise-grade systems.