Full Stack Developer

Job Overview:

• Shift: Daytime
• Location: Karachi (PECHS)
• Experience Level: 5+ years
• Team Size: Leading a team of 5 or more developers

Key Responsibilities:

• Technical Leadership: Make critical architecture decisions for MERN applications, including database schema design, API structure, frontend state management patterns, and scalability planning for growing user bases.
• Team Development: Directly mentor developers on advanced React patterns, performance optimization, and MongoDB query efficiency through hands-on code sessions and technical discussions.
• Code Quality: Establish and enforce specific coding standards including React component structure, Express middleware patterns, MongoDB aggregation best practices, and Redux/Zustand implementation guidelines.
• Performance Optimization: Lead initiatives to improve application load times, reduce bundle sizes, optimize database queries, and implement caching strategies across the full stack.
• Sprint Planning & Delivery: Break down complex features into actionable tasks, estimate development effort for MERN-specific work, and ensure on-time delivery of production-ready applications.
• Technical Problem Solving: Debug complex issues spanning React rendering problems, memory leaks, MongoDB performance bottlenecks, and integration challenges with third-party APIs.
• Project Timeline Estimation: Accurately scope and forecast project durations, balance trade-offs between speed and quality, create realistic delivery schedules, and adjust timelines proactively based on technical risks or shifting priorities.

Skills Required:Technical Expertise

• React - Expert-level proficiency including custom hooks, rendering optimization, code splitting, lazy loading, Context patterns, and error boundaries.
• & Express - Architecting scalable backend systems, custom middleware development, authentication/authorization systems, rate limiting, caching strategies, and performance profiling.
• Relational Databases – Advanced schema design, normalization/denormalization strategies, query optimization, stored procedures, indexing, transactions, replication, and performance tuning (e.g. MySQL, SQL, Postgres).
• MongoDB - Advanced database architecture, complex aggregation pipelines, indexing strategies, transaction management, and query optimization.
• UI Frameworks - Deep customization of Ant Design components, advanced Tailwind CSS configurations, design system implementation, and accessibility compliance.
• Responsive Design - Expert cross-device optimization, advanced CSS Grid/Flexbox, performance-first responsive strategies, and progressive enhancement.
• Data Structures & Algorithms - Advanced optimization techniques, complex data manipulation, and performance-critical algorithm implementation.
• Real-time Applications - WebSocket architecture, clustering, message queuing, and real-time data synchronization.
• Cloud-based App Deployment - Hands-on experience with AWS, Azure, and GCP including.
• CI/CD pipelines, containerization (Docker, Kubernetes), load balancing, auto-scaling, monitoring, and cost optimization.

Architecture & System Design

• Application Architecture - Designing scalable, maintainable codebases with proper separation of concerns.
• API Design - RESTful API best practices, API versioning, and documentation
• Security Implementation - JWT/OAuth2 implementation, input validation, XSS/CSRF protection, rate limiting, and secure coding practices.
• Performance Optimization - Bundle optimization, lazy loading, caching strategies, CDN implementation, and lighthouse scoring.
• Error Handling - Comprehensive error boundaries, logging systems, monitoring integration, and graceful degradation.
• Quality Assurance - Manual testing strategies, bug identification and reproduction, cross-browser compatibility verification, and basic debugging skills.
• Team Leadership - 3+ years of experience leading development teams.
• Project Management - Experience with Agile/Scrum methodologies.
• Communication - Excellent verbal and written English communication skills.
• Mentoring - Proven track record of developing junior and mid-level developers.
• Problem Solving - Strong analytical and troubleshooting abilities.
• Bachelor's or Master's degree in Computer Science, Software Engineering, or related field. (Preffered)

Advanced Technical Skills

• AI Integration - Production-level implementation with OpenAI, Gemini, Claude APIs, prompt engineering, token optimization, and cost management.
• Mobile Development - Advanced React Native with native module development, performance optimization, and app store deployment.
• DevOps & Deployment - Docker containerization, Kubernetes orchestration, AWS/Azure services, CI/CD pipeline design, and infrastructure as code.
• Database Expertise - Multi-database architecture, PostgreSQL advanced features, Redis caching strategies, and database migration strategies.

Specialized Experience

• Speech Services - Production integration with Deepgram, Microsoft Speech-to-Text, OpenAI Whisper, custom speech processing pipelines.
• Microservices Architecture - Service decomposition, inter-service communication, distributed logging, and fault tolerance patterns.
• Performance Optimization - Core Web Vitals mastery, advanced lazy loading, service workers, memory leak prevention, and rendering optimization.
• Monitoring & Analytics - Application monitoring, error tracking, performance analytics, and business metrics integration.