About

About Me

I am Arif Hossen, an AWS Certified DevOps Engineer – Professional and AWS Certified Solutions Architect – Associate.I currently serve as the Lead DevOps Engineer at Graaho Technologies, with more than 14 years of experience across cloud engineering, DevOps automation, and software development. My expertise includes AWS infrastructure automation, CI/CD, observability, Terraform, and designing scalable, production-ready cloud architectures.


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Career Journey

Enterprise | Cloud | Mobile | DevOps

Lead DevOps Engineer | Graaho Technologies

Jan 2024 – Present

✔ Leading DevOps automation and reliability practices across microservices and Kubernetes
✔ Designed scalable AWS infrastructure for multi-tenant web and mobile platforms
✔ CI/CD (Jenkins + AWS CodePipeline + GitHub Actions) → deployments daily instead of weekly
✔ IaC: Terraform, CDK, CloudFormation across dev/stage/prod environments
✔ Monitoring with CloudWatch, Grafana, Prometheus
✔ Achieved 25% cloud cost reduction via autoscaling and performance profiling

Lead Software Engineer | Graaho Technologies

Jan 2022 – Dec 2023

✔ Led full-stack cloud and mobile delivery team
✔ Built serverless backend architectures for enterprise mobile apps
✔ Established coding standards, sprint performance metrics, and release governance

Senior Software Engineer | Graaho Technologies

Feb 2019 – Dec 2021

✔ Built food delivery + IoT + AI apps (iOS + Backend Lambda APIs)
✔ Payments: Stripe, PayPal, SSLCommerz, bKash
✔ AWS stack: API Gateway, Lambda, DynamoDB, RDS, S3, Cognito, SNS, SNS Notifications
✔ IoT BLE Beacons and real-time GPS/notification features delivered

Senior Software Engineer | Banglafire Solutions Ltd

2016, July – 2019, January

✔ Built multiple production mobile apps for iOS and Android following best practices and high-quality standards
✔ Designed backend systems and REST APIs for seamless mobile integration
✔ Managed and optimized MySQL databases for performance and scalability
✔ Led development for high-impact, high-profile projects
✔ Delivered beacon-based iOS/Android apps for Japanese clients (BLE tracking, forklift logging, device services)
✔ Built the Charity Donation platform GIVEGOGET, enabling transparent and engaging donation experiences

Senior Software Engineer | Kalypso Ltd

2013, November – 2016,June

✔ Web and Mobile app Develop
✔ Integrate Google Map, QR Code
✔ Key projects: Tecsa Foundation Android App, Tecsa Collection Android App, Tecsa Fashion Android App (QRC Scan Product Purchase), SD Card Data Backup Android App, Tech Cycle Bar Code Scan Android App, Hotel Reservation Android App
✔ Language and Tools: Android Studio, Java, Titanium, Cakephp, MYSQL

Senior Software Engineer | Grameen Solutions Ltd

2012, November – 2013, October

✔ Web Application Develop and Team Lead
✔ IRequirement Analysis and Database Design
✔ Interaction with clients
✔ Key Projects: Hospital Management System for CMH Hospital
✔ Technology used PHP, Cakephp, Mysql, css, ajax,jQuery

My Works

My Works

Here is my somes projects.

KhaoDao

Food Delivery App

I have developed this application for Graaho

- A user-friendly iOS app enabling seamless food ordering and delivery with real-time tracking and payment integration.
Technology use for mobile: SwiftUI(iOS App)
API Backend Technology: Lambda (Python)
AWS Service use: API Gateway,Route 53, ALB, Lambda, SNS, EC2,CloudWatch, DynamoDB, RDS (Postgresql)
Payment Gateway: SSLCommerz,ShurjoPay, bKash
Apple Store Link

Excess To Needs

Charity App

I have Developed for Excess to Needs

• An iOS app developed in Swift that connects donors with charitable organizations, facilitating easy contributions and tracking donations.
• Technology use for mobile apps: Swift 5, Storyboard

Bmd Weather Application

Weather app

This application developed for Bangladesh Meteorological Department (BMD) (Bengali: বাংলাদেশ আবহাওয়া অধিদপ্তর)

A comprehensive weather app available on Android and iOS (developed in Swift), providing real-time weather updates, forecasts, and alerts.
• Technology use for mobile apps: Android (Java Native), iOS(Swift)

Smart Guess App

AI Cow Prediction App

This application develop for graaho

I have develop this application only iOS Apps part
Technology use for mobile: SwiftUI(iOS App)

Reach App

Social Network

A social networking iOS app facilitating connection, communication, and content sharing among users with robust privacy controls.

Integrations:
- Apple Wallet
- Widgets
- NFC Cards Integrate Technology use for mobile: SwiftUI(iOS App)

BBS Statistics App

Publication App

An app for accessing various statistical publications and data. This application developed for Bangladesh Bureau of Statistics (BBS)

Technology use for mobile app: Java(Android Native)

Some others mobile applications

- Ultimate Style Shopping App
- 2NITE Shanghai App
- Beacontrol, BeaconLogger App
- Tecsa Foundation Android App
- Tecsa Collection Android App
- Tecsa Fashion Android App
- Hotel Reservation app

Skills

Technical Skills

DevOps & Cloud
  • IaC: Terraform, CloudFormation, AWS CDK
  • CI/CD: GitHub Actions, Jenkins, AWS CodePipeline
  • Containers: Docker, Kubernetes, EKS/ECS
  • Monitoring: CloudWatch, Prometheus, Grafana
  • Security: IAM, Vault, AWS Config, VPC
  • DB + Cache: MySQL, PostgreSQL, DynamoDB, Redis, MongoDB
    • Mobile & Backend
  • iOS: Swift, SwiftUI, UIKit, WalletKit, NFC
  • Android: Kotlin, Java Native
  • Backend: Python (Lambda APIs), Laravel
  • Automation: Bash, PowerShell, Python scripting

    • Education

    My Education

    I have completed my M.Sc and B.Sc in Computer Science and Engineering.

    MSCSE in Computer Science and Engineering
    United International University (UIU), Bangladesh

    July 2010 – May 2011 CGPA : 3.67

    B.Sc in Computer Science and Engineering
    International Islamic University Chittagong (IIUC)

    March 2004 – Feb 2008 CGPA : 3.45

    0 Certificate & Awards
    0 Complete Projects
    0 Mobile Apps development

    I'm Available for freelancing

    Available for freelancing opportunities. Contact me for professional services!.

    Hire me

    Contact

    Contact Me

    Feel free to reach out for any inquiries or assistance. I'm here to help!

    Address

    45/2,West Bhasantek,Dewanpara, Dhaka Cantonment. Bangladesh

    Contact Number

    +8801714355911

    Email Address

    ariftechinfo@gmail.com

    Website

    arifhossen.net