Full Stack Developer (MERN)

We are seeking an experienced Full Stack Developer to join the MarketEdge CRM development team. You will build and maintain both frontend and backend components of a B2C CRM platform, working with the IDURAR codebase to extend its capabilities for consumer-focused use cases.

Responsibilities

• Design and implement RESTful APIs using Node.js and Express.js for B2C CRM modules
• Extend IDURAR's data models to support consumer profiles, transactions, and behavioral tracking
• Build and optimize MongoDB aggregation pipelines for analytics and reporting
• Implement multi-tenant architecture ensuring complete data isolation between client organizations
• Develop integrations with Edge Card Loyalty API, WhatsApp Business, SMS gateways, and webhook handlers
• Design background job processing using Bull queue for campaign sending and data synchronization
• Build real-time features using Redis for caching and session management
• Build responsive React components using Ant Design framework with state management via Redux Toolkit
• Create dynamic dashboards with data visualization (Recharts or similar)
• Develop Customer 360 profile views, campaign creation wizards, and visual segment builders
• Design and implement MongoDB schemas for customers, transactions, segments, campaigns, and journeys
• Write clean, maintainable code with minimum 80% test coverage using Jest and React Testing Library
• Contribute to CI/CD pipeline maintenance and document APIs using OpenAPI/Swagger

Requirements

• 4+ years of professional MERN stack development experience
• Expert-level proficiency in Node.js, Express.js, React.js, and MongoDB
• Advanced MongoDB skills: schema design, aggregation framework, indexing strategies
• Strong understanding of authentication/authorization (JWT, OAuth 2.0, RBAC)
• Experience with Redis, RESTful API design, Git, and testing frameworks
• Understanding of CRM workflows, loyalty program mechanics, and multi-tenant SaaS architecture
• Strong problem-solving abilities and excellent communication skills
• Self-motivated with ability to work independently in hybrid/remote environment

Preferred Skills

• Experience with Ant Design component library
• Familiarity with Bull or similar job queue systems
• Knowledge of Docker containerization and cloud platforms (AWS, DigitalOcean)
• Understanding of message broker patterns and event-driven architecture
• Experience with IDURAR or similar open-source ERP/CRM platforms
• Knowledge of Nigerian business environment and NDPR regulatory requirements

How to Apply Interested and qualified candidates should apply via Tezza Business Solutions Ltd on tezzasolutions.catsone.com