Senior Backend & DevOps Engineer

Expert Laravel Developer specializing in Microservices, High Traffic Management, and Cloud Infrastructure. Passionate about scalable architecture, DevOps automation, and Agile methodologies including Scrum and Kanban.

With extensive experience in PHP, Laravel, AWS, Docker, and Kubernetes, I help organizations build robust, scalable systems that handle millions of requests. My expertise spans from backend development using SOLID principles and TDD to DevOps implementation with CI/CD pipelines.

Md Himel Ali - Laravel & DevOps Engineer

About Me

I’m a Senior Backend & DevOps Engineer with 11+ years of experience building scalable web applications and cloud infrastructure serving millions of users. My expertise covers Laravel, microservices, and DevOps automation, with a strong focus on performance optimization and high availability.

performance optimization and high availability. I’ve delivered solutions in HRM, Payroll, Inventory, E-Commerce, Payment Gateway, Business Automation, School Management, IoT, and ERP. I follow SOLID principles, Repository Pattern, and TDD to ensure clean and maintainable codebases.

In DevOps, I work with Docker, Kubernetes, CI/CD automation (GitLab Runner, GitHub Actions), and AWS infrastructure. I also use Terraform and Ansible to implement Infrastructure as Code (IaC) for automated deployments.

Alongside backend and DevOps, I have hands-on experience with Python and Django for building secure and scalable web platforms. I’ve also developed Android apps with Java, creating fast and user-friendly mobile solutions.

I thrive in Agile environments (Scrum, Kanban) and use Jira, Trello, and ClickUp for effective project management. My approach combines deep technical expertise with strong communication, ensuring seamless collaboration across teams.

Backend DeveloperCloud ExpertAgile & Kubernetes Practitioner

Quick Facts

Location: Dhaka, Bangladesh
Experience: 11+ Years
Languages: PHP, JavaScript, Java, Python
Backend: Laravel, CodeIgniter, Node.js, and Django
Frontend: Vue.js, Nuxt, React, Next.js
Cloud: Docker, AWS, GCP, VPS, VM, Kubernetes
Real-Time & WebSocket: Laravel Reverb & Websockets, Pusher, AgoraIO, WebRTC
Mobile Apps: Android Studio with Java, Ionic Framework
Methodology: Agile, Scrum, Kanban
Tools:ClickUp, Trello, Jira

Technical Skills

Backend Development

PHPLaravelCodeIgniterJavaPythonMySQLMSSQLRedisKafkaTDDSOLID PrincipalDRYRepository PatternAPI Development and Documentation

Architecture & Systems

MicroservicesEvent-driven ArchitectureJob & Queue ManagementLoad BalancingCaching StrategiesDatabase OptimizationHigh Traffic Management

Real-Time & WebSocket

WebRTCSocket.IOAgora IOPusherLaravel Reverb and WebsocketLaravel Echo

DevOps & Cloud

AWS/GCP/AzureCI/CDDockerGitLab RunnerGitHub ActionsVPS/VMDocker ComposeKubernetes

Frontend & Tools

JavaScriptIonic FrameworkVue.jsReact.jsNuxt.jsNext.jsWebRTC

Communication, Logging & Monitoring

SlackDiscordSentryCloudWatchDataDogGrafana

Version Control, Agile & Project Management

GitGitHubGitLabSVNScrumKanbanJiraTrelloClickUpSprint PlanningTeam Leadership

Work Experience

2021 - Present

Deputy Manager (Tech Lead)

Ami Probashi Limited – Dhaka, Bangladesh

Leading the design, development, and scaling of a microservices-based platform serving millions of monthly users with 99.9% uptime. Spearheaded backend and API development ensuring high concurrency and secure integrations across multiple government and enterprise systems. Directed DevOps initiatives with Kubernetes, Docker, and infrastructure-as-code to achieve rapid, reliable deployments. Implemented Redis caching, Kafka-based event-driven pipelines, and socket programming with WebRTC for real-time chat and video communication. Managed product delivery using Scrum Agile with ClickUp, achieving consistent on-time delivery across sprints.

Key projects included:
  • Ami Probashi Website, Portal and Mobile App: End-to-end platform for Recruiting Agency, Training Center, BMET, Expatriate, Student and academic management.
  • Ami Probashi Payment Gateway: Core development and integration of secure payment APIs with Bkash, Nagad, ekPay, and SSL Commerz.
Key Achievements:
  • Scaled platform to handle millions of concurrent requests with auto-scaling on AWS/Kubernetes clusters.
  • Designed and deployed API-driven architecture powering integrations with government & financial systems.
  • Implemented event-driven processing with Apache Kafka, ensuring real-time and fault-tolerant data flow.
  • Built real-time communication modules using WebRTC and socket programming for chat & video calls.
  • Applied Redis caching & optimized database queries, achieving up to 60% faster response times.
  • Reduced deployment time from 4 hours to under 15 minutes using containerized CI/CD pipelines.
  • Lead a team and technical lead of 12 developers, improving sprint completion rate to 95% using Scrum Agile with ClickUp.
2019 - 2021

Senior Programmer (Team Lead)

BDCOM Online Limited – Dhaka, Bangladesh

Lead a development team in building large-scale enterprise solutions for corporate sectors. Designed and implemented mission-critical applications such as Online AGM (Annual General Meeting), Ticket Management Systems, HRM and Payroll platforms, and enterprise support portals. Introduced automation, API-driven architectures, and DevOps practices to improve reliability and deployment efficiency. Collaborated with cross-functional teams to integrate payment gateways, CRM systems, and secure authentication frameworks ensuring smooth customer and business operations.

Key Achievements:
  • Built enterprise HRM and Payroll solutions automating employee management across multiple departments.
  • Designed and deployed secure IVR-based Ticketing & Support Portal managing 10,000+ tickets monthly.
  • Implemented IoT-based attendance & monitoring systems improving operational efficiency by 20%.
  • Led adoption of CI/CD pipelines with version control, automated testing, and containerized deployment, reducing release cycles by 50%.
  • Guided a team of developers in applying best practices (MVC, layered architecture, microservices) to achieve scalable and maintainable codebases.
2017 - 2019

Full Stack Developer

Seba Automation – Dhaka, Bangladesh

Contributed to the digital transformation of local government, education, and enterprise sectors by developing scalable and secure web applications. Delivered Union Parishad and Municipality service automation platforms, NGO management portals, School Management Systems, and high-performance e-commerce platforms. Worked with PHP (Laravel, CodeIgniter), MySQL, and Redis to build efficient and reliable applications, while integrating leading Bangladeshi payment gateways such as Bkash, SSLCommerz, and Nagad for seamless financial transactions.

Key Achievements:
  • Developed Union Parishad & Municipality Digital Service Platforms enabling citizens to access e-governance services (tax collection, certificates, utility payments) online.
  • Built NGO Management Portals for donor tracking, fund allocation, and project reporting with transparency and audit support.
  • Delivered School Management Systems improving academic, administrative, and financial workflows for multiple institutions.
  • Engineered e-commerce platforms with Redis caching and MySQL optimization, supporting over 200-300 concurrent users during peak transactions.
  • Integrated secure payment solutions with Bkash, SSLCommerz, and Nagad, enabling smooth online payments for services and products.
  • Designed and deployed scalable backend architectures with load balancing and optimized queries, achieving high availability and performance for mission-critical systems.
2014 - 2017

Software Engineer

ShurjoMukhi Limited – Dhaka, Bangladesh

Designed and developed large-scale web applications across education, e-commerce, and enterprise sectors. Delivered mission-critical platforms including school management systems, online ticketing, ERP, and payment gateways. Worked extensively with PHP (Laravel, CodeIgniter, and raw PHP) and MySQL to build scalable and secure solutions.

Key Achievements:
  • Delivered multi-channel payment gateway integrations (Bkash, Dutch Bangla Bank, Eastern Bank, Trust Bank, City Bank) improving transaction success rates.
  • Built BPL Online Ticketing system capable of handling thousands of concurrent users during match days.
  • Launched Shurjo Barta, sending millions of SMS reliably with 99% delivery success.
  • Implemented School Management System used by multiple institutions, streamlining academic and administrative workflows.
  • Developed Ansar & VDP ERP digitizing workforce and payroll management for thousands of employees nationwide.
  • Introduced secure coding practices, encryption, and API-driven architectures ensuring system uptime above 95%.

Resolve Critical Issues

Problem

Ami Probashi platform was facing severe scalability challenges as user traffic surged into the millions. Response times exceeded 12–15 seconds during peak loads, critical APIs were frequently timing out, and the system struggled to support more than 200-300 concurrent requests without service degradation. Real-time features such as chat and video calls also suffered from latency and dropped connections.

Solution

Designed and implemented a scalable architecture using Kubernetes and Docker for containerized deployments, Redis caching for faster data retrieval, and Apache Kafka for event-driven data processing. Optimized MySQL queries with proper indexing and sharding strategies. Introduced horizontal scaling with load balancers to handle peak traffic efficiently.

Tools Used
Laravel CacheRedisAWS ELBMySQL OptimizationKubernetesDocker
Outcome

Achieved 95% reduction in response time (from 15s to 750ms), increased concurrent user capacity to 10,000+, and maintained 99.9% uptime and generating a lot of revenue in 24 hours.

Problem

The RMG sector’s HRMS platform was operating on MSSQL with a 90GB+ database, facing high licensing costs, poor scalability, and performance issues during payroll and attendance processing. Cross-database integration with modern applications was limited, and queries were taking 20–30 seconds under peak usage.

Solution

Planned and executed a seamless migration from MSSQL to MySQL 8.0 with zero data loss. Performed schema redesign, data normalization, and optimized queries for HRM, payroll, and attendance modules. Used chunk-based migration for handling 90GB+ of records, and applied read replicas with Redis caching to support concurrent processing.

Tools Used
PHPMSSQLMySQL 8.0MySQL OptimizationRedisLaravel QueuesApache Kafka
Outcome

Successfully migrated 90GB+ HRMS database from MSSQL to MySQL with 2 hours downtime. Reduced query response times from 30s to under 2s, cut operational costs by 60%, and enabled smooth integration with modern HR, payroll, and IoT attendance systems. The new architecture now supports 50 to 100 concurrent users reliably.

Problem

Deploying Laravel + React projects to multiple VPS/VM servers manually was error-prone and slow. Each deployment took 2–3 hours, and inconsistencies between servers caused frequent bugs in production.

Solution

Implemented automated CI/CD pipelines using GitHub Actions. On push to main branch, the pipeline builds Laravel backend and React frontend, runs tests, and deploys code via SSH to multiple VPS/VM servers. Added automated migrations, npm build, and cache clearing to streamline releases.

Tools Used
GitHub ActionsSSHLaravel EnvoyNode.jsPM2MySQL
Outcome

Deployment time reduced from 2–3 hours to 5–10 minutes per server. Zero manual errors, consistent production environment across all servers, automatic rollback capability, and improved overall team productivity.

Problem
Managing hundreds of concurrent users in an online office environment is complex. Challenges include:
  • Real-time chat and notifications across multiple clients
  • User presence and status tracking
  • Audio and video calls with multiple participants
  • Synchronization of events and messages in real-time
Poor handling can lead to message loss, call failures, and inconsistent user states.
Solution Approach
Implemented a scalable real-time architecture:
  • Used Laravel Echo and Pusher for broadcasting events
  • Leveraged Redis for pub/sub messaging and presence tracking
  • Integrated Agora.io for low-latency audio/video calls
  • Ensured room/session management to handle multiple participants reliably
  • Optimized message delivery and reconnection logic to avoid data loss
Tools & Technologies
Laravel EchoPusherRedisAgora.ioWebSocketsReact.jsMySQL
Outcome

Enabled reliable real-time chat, notifications, and presence updates for hundreds of users. Audio/video calls with Agora.io work seamlessly with multiple participants. System can handle concurrent user events without message loss, improving collaboration and user experience.

Problem

Sending SMS, push notifications (FCM), and emails to millions of users manually or via basic scripts was slow, unreliable, and prone to failures. High concurrency led to queue backlogs, throttling issues, and message delivery delays, negatively affecting user engagement and business operations.

Solution
Built a scalable notification system with the following strategies:
  • Implemented message queues using Redis for asynchronous processing
  • Segregated notification channels: SMS, FCM push notifications for mobile, and transactional emails via SES
  • Batch processing and throttling to handle millions of messages without overwhelming providers
  • Implemented retry logic and failure monitoring for reliable delivery
  • Integrated dashboards for real-time monitoring and analytics of message delivery
Tools & Technologies
Laravel QueuesRedisFCMSMTPSMS GatewayAWS SESMySQLMonitoring with Logging
Outcome

Successfully delivered millions of SMS, push, and email notifications reliably and on-time. Queue-based architecture eliminated throttling issues, improved system reliability, and ensured near 100% delivery. Real-time monitoring allowed immediate detection of failures and retries, significantly increasing user engagement and operational efficiency.

Problem
High-traffic applications are vulnerable to multiple security threats:
  • Repeated or malicious requests (DDOS, brute force, bots) overloading the system
  • Race conditions and thread conflicts due to concurrent hits
  • Unoptimized database queries leading to performance degradation under load
  • Exposure to common security vulnerabilities (SQLi, XSS, CSRF, API abuse)
These issues can compromise system availability, data integrity, and user trust.
Solution
Implemented a robust security and hit protection strategy:
  • Applied rate limiting and throttling to prevent multiple/malicious hits
  • Implemented queue locking and concurrency control to prevent race conditions
  • Optimized database queries and added caching to reduce load
  • Secured endpoints using authentication, input validation, and anti-CSRF measures
  • Monitored system health and suspicious activity with real-time dashboards
Tools & Technologies
Laravel Rate LimitingRedisInput ValidationCachingMySQL OptimizationAWS WAFQueue LockingSecurity Monitoring
Outcome
The system now reliably handles high-traffic and concurrent users:
  • Prevents abuse from multiple or malicious hits
  • Maintains thread safety and prevents race conditions
  • Reduces database load and improves response times
  • Secures endpoints against common vulnerabilities
Resulting in a secure, stable, and high-performing system that maintains user trust and availability.

Education

2018

M.Sc. in Computer Networks and Communications

Independent University, Bangladesh
Specialized in software development for networked systems, with expertise in software design, network programming, distributed architectures, and secure communication. Experienced in building scalable applications, integrating security mechanisms, and optimizing network performance.
2013

B.Sc. in Electronic and Communication Engineering

University of Information Technology & Sciences, Dhaka, Bangladesh
Focused on electronic systems, digital communication, and embedded technologies. Developed strong skills in programming, and computer networks. Completed final-year projects on distributed systems and web applications with modern software engineering practices.

Certification

2015

Mobile App Develop (Android)

BASIS Institute of Technology & Management (BITM), Dhaka, Bangladesh
Mobile app development with Android (Java) focuses on building applications using Java as the core programming language. Developers learn the basics of Java, including OOP concepts, before moving into Android fundamentals such as Activities, Intents, API Request, and UI components They also work with data handling through SharedPreferences, SQLite, and APIs for real-world app integration.
2014

JAVA Professional

Daffodil Japan IT (DJIT), Dhaka, Bangladesh
Completed hands-on training in Java Development, covering Core Java, OOP, multithreading, exception handling, and collections framework. Gained practical knowledge of Spring, Spring, and Hibernate for building scalable enterprise applications. Worked on RESTful API development, microservices architecture, and database integration (MySQL, MongoDB)
2010

Web Design and Development

BDCAN Infosys Limited, Rajshahi, Bangladesh
Skilled in Web Design and Development using PHP, HTML, CSS, and MySQL with experience in front-end design and dynamic backend development.
2010

Cisco Certified Network Associate (CCNA)

Rajshahi University of Engineering & Technology (RUET), Rajshahi, Bangladesh
Achieved Cisco CCNA certification with a foundation in networking principles, including IP addressing, subnetting, routing protocols (RIP, OSPF, EIGRP), switching, and VLANs. Hands-on training involved configuring Cisco routers and switches, troubleshooting network connectivity, and implementing LAN/WAN technologies. This certification built expertise in designing, managing, and securing small to medium-sized enterprise networks.

Featured Projects & GitHub Packages

Ami Probashi – BMET Registration, Digital Training & Operations Management

At Ami Probashi, I streamlined nationwide training programs across 120 centers, implementing digital enrollment, biometric attendance, and QR code certification. I managed real-time grading for over 2.5 million PDOs and 350,000 general training participants, improving efficiency, scalability, and accessibility of government training operations.

PHPLaravelMySQLRedisJavaScriptVuejsDockerAWSKubernetes
Seba Automation – Digital Platform for Union Parishad & Municipalities

Developed and implemented an end-to-end digital service automation system enabling citizens to apply for all types of certificates from Union Parishad and Municipalities online. The platform simplifies public service delivery by allowing one-click applications from home, transparency, and efficiency in local government operations.

PHPLaravelMySQLJavaScriptAjaxJQueryVPSNginx
Income Tax BD– Digital Platform for prepare Tax Return

Income Tax BD is a leading consultancy service in Bangladesh since 2011, specializing in digital tax return preparation. The platform provides features such as automated rebate calculation, optimized tax solutions, and customer-focused guidance, making income tax filing simpler, accurate, and more efficient.

PHPLaravelMySQLJavaScriptJQueryVPSApache
PHP Package to convert English numbers to other language number

A versatile PHP package that converts numeric values into words, supporting multiple languages. Fully compatible with Laravel, raw PHP projects, and modern PHP frameworks, making it easy to integrate number-to-word functionality in any application.

PHPComposer
Docker Vhost by NGINX

Easily configure multiple subdomains using Docker, Docker Compose, and NGINX to route requests to separate containers on your local machine. Perfect for developing and testing multi-service applications in a realistic, isolated environment.

DockerDocker ComposeNGINX
PdfGenerator for Laravel

PdfGenerator is a flexible and extensible PDF generation wrapper for Laravel that supports multiple drivers including DomPDF, Snappy (wkhtmltopdf), mPDF, and FPDF — all with a unified interface.

LaraveldompdfwkhtmltopdfComposerBash

Resume / CV

Professional Summary

Highly skilled Senior Backend & DevOps Engineer with 11+ years of experience in developing and deploying scalable web applications. Expert in Laravel development, microservices architecture, and cloud infrastructure management. Proven track record of optimizing system performance, implementing DevOps best practices, and leading cross-functional teams using Agile methodologies. Passionate about building robust, high-performance systems that serve millions of users while maintaining security and reliability standards.

Specialized in PHP/Laravel ecosystem with extensive experience in MySQL optimization, Redis caching, and API development. Strong DevOps background including containerization with Docker and Kubernetes, CI/CD pipeline automation, and AWS cloud services. Experienced in implementing monitoring and logging solutions, infrastructure as code, and automated testing strategies to ensure system reliability and rapid deployment cycles.

Committed to continuous learning and staying updated with latest technologies and best practices. Strong advocate for clean code principles, SOLID design patterns, and Test-Driven Development (TDD). Excellent communication and leadership skills with experience in mentoring junior developers and collaborating with stakeholders to deliver business value through technology solutions.

Download CV

Download my complete resume in PDF format including detailed work experience, technical skills, certifications, and project portfolio.

Last updated: September 2025
File size: ~500KB | Format: PDF

Contact Me

Get In Touch

Hire Md Himel Ali – Senior Laravel Developer & DevOps Engineer with expertise in Microservices, TDD, SOLID principles, and Agile methodologies including Scrum, Kanban, Jira, and ClickUp. Available for full-time positions, consulting projects, and technical leadership roles in growing technology companies.

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Contact Information

Location: Dhaka, Bangladesh
Timezone: GMT+6 (BST)
Social Media
Quick Response: I usually respond to all inquiries within 24 hours. For urgent projects or time-sensitive requests, please include the word "URGENT" in your subject line so I can prioritize your message. Providing a brief description of your project and any relevant deadlines will help me respond more effectively and provide accurate guidance or estimates.