Senior Software Engineer

💼 Professional Summary

Senior Software Engineer with 8+ years of experience building high-performance distributed systems for FinTech, payment processing, and enterprise applications. Expert in Elixir with proven track record of leading teams and delivering scalable solutions processing $50M+ in annual transactions.

Combines strong technical leadership with hands-on development, having individually built payment gateway systems while leading teams on business banking platforms. Specialized in real-time systems, event-driven architecture, and cloud infrastructure optimization.

Core Competencies: Distributed Systems Architecture, Microservices, Payment Gateway Integration, Event-Driven Systems, Real-Time Processing, Technical Leadership, Team Mentorship, Cloud Infrastructure

🛠️ Technical Skills

Programming Languages

Elixir, Go, Python, Node.js, JavaScript

Backend Technologies

Phoenix Framework, LiveView, OTP, REST APIs, GraphQL, gRPC, WebSockets, Microservices Architecture

Databases

PostgreSQL, MongoDB, Redis, SQLite, Database Optimization, Query Performance Tuning

Message Queues & Event Streaming

Kafka, RabbitMQ, AMQP, Event-Driven Architecture, Pub/Sub Patterns

Cloud & DevOps

AWS (EC2, S3, Lambda, RDS, ECS, ElastiCache), Docker, Kubernetes, CI/CD Pipelines, GitHub Actions, Jenkins

FinTech & Payments

Payment Gateway Integration, MPGS, Stripe, Transaction Processing, PCI-DSS Compliance, Financial Reporting, Invoicing Systems, 3D Secure 2.0

Frontend Technologies

React.js, Redux, Material-UI, Responsive Design, Single Page Applications

Security & Best Practices

OAuth 2.0, JWT, RBAC, Data Encryption, Security Auditing, TDD, Clean Architecture, Code Reviews

AI-Powered Development Tools

Claude Code, GitHub Copilot, ChatGPT, AI-Assisted Code Generation, AI-Powered Debugging, Prompt Engineering

💼 Professional Experience

Leading Payment Service Provider (Confidential) | Dubai, UAE (Remote) 📅 December 2021 - December 2025

Senior Software Engineer building enterprise FinTech platform serving thousands of businesses. Individually own payment gateway system while leading development team on business banking platform. Report directly to CTO.

Technologies: Elixir, Phoenix, LiveView, Go, PostgreSQL, Redis, Kafka, RabbitMQ, MPGS, AWS, Docker

🎯 Individual Ownership - Payment Gateway

✅ Solely architected and built complete payment gateway platform (full-stack) processing $50M+ in annual transactions with 99.9% uptime
⚡ Implemented MPGS integration with 3D Secure 2.0 authentication, reducing payment processing time by 65% (from 3.2s to 1.1s)
📊 Developed real-time payment dashboard using Phoenix LiveView serving 1,000+ concurrent merchant users

👥 Team Leadership - Business Banking Platform

🏆 Led team of 5-6 engineers developing comprehensive business management platform (invoicing, CRM, sales, payroll, taxation, appointments, subscriptions)
🏗️ Designed microservices architecture with event-driven patterns using Kafka and RabbitMQ across 10+ distributed services
📈 Built real-time financial dashboards using Phoenix LiveView serving 5,000+ concurrent users with live KPI updates
🚀 Reduced feature delivery time by 40% through modular API design and clean architecture

🔧 Technical Leadership

⚡ Built high-performance API gateway in Elixir handling 50,000 requests/second with sub-10ms latency
💰 Optimized AWS infrastructure (ECS, RDS, ElastiCache) reducing costs by 35% while scaling 5x
🔄 Established CI/CD pipelines reducing deployment time from 2 hours to 15 minutes with 95%+ code coverage
👨‍🏫 Mentored junior engineers and collaborated with CTO on technical roadmap and architecture decisions
🔒 Ensured PCI-DSS compliance with zero security breaches across all payment systems

Software Engineer

Confidential | Remote 📅 January 2020 - December 2021 (2 years)

Built Attendance Management System (AMS) from scratch for manufacturing facilities, handling employee time tracking, device integration, and real-time monitoring. Led mobile development team and architected full-stack solution (backend, web, mobile).

Technologies: Node.js, Express, React.js, MongoDB, Redux, Material-UI, WebSockets, Docker, Portainer, WatchTower, Ubuntu, Proxmox, GitHub Actions, React Native

Key Achievements

👥 Built complete Attendance Management System using MERN stack, serving 10,000+ employees across multiple manufacturing facilities
📱 Led mobile development team building Android and iOS applications, individually managing system architecture and API design consumed by mobile team
🏗️ Architected RESTful APIs for web and mobile platforms, ensuring consistent data flow across backend, web app, and mobile applications
🔐 Integrated RA08T biometric attendance devices for automated time tracking with real-time data synchronization
📊 Developed real-time dashboards displaying live attendance metrics and analytics using React.js and Chart.js
💬 Built real-time messaging system using WebSockets for internal team communication
🖥️ Deployed and managed on-premises infrastructure using Ubuntu server with Proxmox virtualization, Docker containers orchestrated via Portainer, and WatchTower for automated updates
🔄 Established CI/CD pipeline with GitHub Actions and Docker builds, automating deployment and reducing release cycles by 60%
⚡ Reduced manual attendance processing time by 80% through device integration and automation

Freelance Full-Stack Developer

Self-Employed | Remote 📅 August 2019 - January 2020 (6 months)

Individually developed full-stack applications for clients including multi-tenant SaaS platforms and NGO management systems.

Technologies: Elixir, Phoenix, LiveView, PostgreSQL, Node.js, Express, React.js, MongoDB, Redux, Material-UI, Stripe, REST APIs

Key Projects

🏢 Built multi-tenant warehouse management SaaS platform using Elixir, Phoenix, and LiveView with separate applications for system management, tenant administration, and customer booking
🔧 Implemented fault-tolerant service architecture using Elixir OTP Supervisor/Worker pattern for warehouse operations, facility management, and customer engagement workflows
💳 Integrated Stripe Connect for marketplace payouts with 2-step payout flow, multi-tenant database architecture with PostgreSQL schema isolation, and identity verification
🌐 Developed NGO management platform using MERN stack with React.js frontend (Redux, Material-UI, FullCalendar, Chart.js) and Node.js backend
🔐 Built authentication systems with JWT, two-factor authentication (TOTP and SMS), and role-based access control across both platforms