Partharaj Deb

€120

Partharaj Deb

Integration Expert and Back-end Developer

Dhaka, Dhaka Division, Bangladesh

Bio

Partharaj Deb is a senior software engineer with over 10 years of experience in fintech, medtech, edtech, agritech, HRtech, and eCommerce. He excels in Java (Spring Boot) and PHP (Laravel), system design, DevOps, and technical product management. A Toptal-certified engineer, he has led global projects, integrated complex systems, and built scalable, outcome-driven architectures that balance simplicity with long-term impact.

Isidor, Inc.Google API, Google Apps Script, Google Sheets API, Data Engineering…Directa 24Java, Spring Boot, Jenkins, Amazon Web Services (AWS), Selenium…

Experience

• PHP – 11 years
• MySQL – 11 years
• API Development – 10 years
• Laravel – 10 years
• Third-party Integration – 8 years
• Java – 8 years
• PostgreSQL – 7 years
• Spring Boot – 4 years

Work Experience

Senior PHP and Laravel Developer (via Toptal)

2023 – PRESENT

Simfresh Pty Ltd

• Resolved many malfunctions in an existing application, added a few new features based on the client's requirements, and integrated a 3rd-party accounting service, Reckon, with a few reports.
• Improved application performance by refactoring the old codebase. Optimized AWS services, which resulted in cost optimization.
• Acted as a technical project manager to revamp a large project and built the system architecture that enhanced the overall activities to be smoother and better performing.
• Contributed to the bug-free operation of the app, which made the client's business management smoother.

Technologies: PHP, Laravel, Amazon Web Services (AWS), Back-end Development, API Design, Composer, MAMP, API Testing, Code Review, Team Leadership, Ajax, jQuery, REST, REST APIs, Vue, HTML, CSS, JavaScript, DevOps, Amazon S3 (AWS S3), HTML5, Customer Relationship Management (CRM), Leadership, MongoDB, Apache Kafka, Distributed Systems, GitHub Actions, Load Balancers, Query Optimization, Automated Server Deployment, OAuth 2, PHPUnit, RESTFul APIs, Data Masking, Agile, Technical Leadership, CI/CD Pipelines, PHP 8, Terminal, IntelliJ IDEA, Slack, MacOS, Single Sign-on (SSO), HTTP, Webhooks, Message Queues, Event-driven Design (EDD), AWS IoT, API Architecture, Problem Solving, Best Practices, Performance Optimization, Scalable Architecture, SCSS, Project Management

Google Apps Script Developer

2025 – 2025

Isidor, Inc.

• Developed a solution using Python that communicates with the Google Sheet API to generate a rating report with the given rubric of the charts available in different sheets.
• Implemented a custom Excel parser to overcome chart-related API limitations.
• Trained the AI that deals with Google Sheets and Charts.

Technologies: Google API, Google Apps Script, Google Sheets API, Data Engineering, Google Sheets, Python, Google Chart API, HTTP, API Architecture, Problem Solving, Best Practices

Senior Software Engineer Specialist

2022 – 2023

Directa 24

• Integrated the cash-in and pay-out part of third-party payment gateways of different providers from India, Japan, Vietnam, Mexico, Latam, etc. The company provides international payment solutions using its payment gateways and others.
• Used Java with Spring Boot framework with MySql database. To manage agility, we used Jira, Bitbucket for version control, Slack for communication, Jenkins for CI/CD, and AWS cloud service.
• Enabled the project to process 100 thousands of payments of different payment methods worldwide.

Technologies: Java, Spring Boot, Jenkins, Amazon Web Services (AWS), Selenium, Design Patterns, Unit Testing, Spring, Integration, Microservices Architecture, Payment Gateways, Team Leadership, Cloud Architecture, Databases, Back-end Development, API Design, API Testing, Stripe Connect, Jenkins Pipeline, Code Review, Large-scale Projects, Amazon S3 (AWS S3), GraphQL, Leadership, Credit Card Processing, SaaS, Distributed Systems, Query Optimization, RESTFul APIs, Agile, Technical Leadership, Terminal, IntelliJ IDEA, Slack, MacOS, HTTP, Webhooks, AWS IoT, payment processing api, API Architecture, Problem Solving, Best Practices, Scalable Architecture, Fintech, ACH Payments

Software Integration Engineer

2022 – 2022

InveloApp

• Integrated third-party services such as single sign-on (SSO) with Google, FeedBear, Thinkific, and Gmail API. Set up chat and mail services with Intercom and SendinBlue, including voice call integration with Singlewire.
• Tracked and fixed bugs using Jira as a reporting tool and Notion as the feature and code documentation tool.
• Integrated several services before the soft launch and became a game changer.

Technologies: PHP, Laravel, Object-oriented Programming (OOP), MySQL, Docker, Amazon Web Services (AWS), API Integration, REST APIs, Single Sign-on (SSO), Third-party APIs, Third-party Integration, Third-party SDK Integration, APIs, Back-end, LAMP, Jira, GitHub, Intercom, SendinBlue, Gmail API, Thinkific, SQL, Amazon EC2, PHP 5, Database Management, Relational Databases, REST, Apache, Linux, Web Development, SOLID Principles, Web Technologies, JSON, API Development, MariaDB, Architecture, RESTful Development, Design Patterns, Unit Testing, Integration, Microservices Architecture, Databases, Back-end Development, API Design, SMS, VoIP, Composer, MAMP, API Testing, Code Review, CSS3, HTML5, Customer Relationship Management (CRM), Postman, SaaS, Query Optimization, RESTFul APIs, Google API, Google Sheets API, Agile, Google Calendar, PHP 8, Terminal, IntelliJ IDEA, Slack, MacOS, HTTP, Webhooks, AWS IoT, API Architecture, Problem Solving, Best Practices, Performance Optimization

Software Engineer

2021 – 2022

Sender.net

• Developed the SMS campaign management APIs with the integration of Broadcast Channel API.
• Tracked and fixed bugs using ClickUp as a project management tool.
• Optimized a few microservices by refactoring and migrating a whole project from Laravel to the Lumen framework.

Technologies: PHP, Laravel, Docker, GitLab, PostgreSQL, MySQL, API Integration, REST APIs, Third-party Integration, APIs, Back-end, LAMP, Microservices, Redis, ClickUp, SQL, Vue, REST, Apache, Linux, Web Development, SOLID Principles, Web Technologies, PHP 7, JSON, API Development, MariaDB, Architecture, Documentation, RESTful Development, Design Patterns, Unit Testing, Integration, Microservices Architecture, Databases, Back-end Development, API Design, Composer, MAMP, API Testing, Code Review, Large-scale Projects, RabbitMQ, CSS3, HTML5, MongoDB, Postman, SaaS, Distributed Systems, GitHub Actions, Query Optimization, RESTFul APIs, Agile, PHP 8, Terminal, IntelliJ IDEA, HTTP, Webhooks, AWS IoT, API Architecture, Problem Solving

Java Developer

2018 – 2021

dgMarket Bangladesh

• Built and improved dgMarket's e-procurement system named dgMarket, developed in Spring Boot with PostgreSQL database.
• Developed and managed a project with one of the other team members with Laravel framework in PHP with MySQL database.
• Confirmed tracking and monitoring were maintained by different search and analytics tools.

Technologies: Java, Spring Boot, Elasticsearch, Thymeleaf, PHP, Laravel, MySQL, PostgreSQL, Back-end, HTML, JavaScript, CSS, Front-end, Full-stack, jQuery, SQL, Ajax, Web Development, SOLID Principles, Web Technologies, JSON, API Development, RESTful Development, NoSQL, Databases, Back-end Development, Code Review, Web Scraping, CSS3, HTML5, Postman, Agile, IntelliJ IDEA, Slack, HTTP, Data Scraping

Software Engineer

2016 – 2018

East West Media Group

• Worked in the field of native Android in Java. Developed two projects named GG Contest and GG Poll with the team. Used the Git version control system to manage the version of our code in Bitbucket.
• Integrated REST/RESTful APIs in the app. This was an Android application developed by a team named Logic. It was a platform for creating simple and complex digital contests.
• Participated in the creation of simple and complex contests.

Technologies: Android, API Integration, Bitbucket, Agile Software Development, SQLite, Firebase, Postman, Slack, HTTP

Software Engineer

2014 – 2016

Creative IT Limited

• Developed custom web-based applications, dynamic websites, and Android mobile apps based on the clients' requirements.
• Provided training in their institute and conducted web and mobile application development courses.
• Built the software development department and recruited and managed seven members of my team.

Technologies: Training, PHP, Laravel, APIs, API Integration, Android, Bitbucket, Git, Team Mentoring, CodeIgniter, WordPress, MySQL, SQL, SQLite, Web Development, Websites, Web Technologies, PHP 7, JSON, API Development, MariaDB, Bootstrap, Full-stack Development, Databases, Firebase, CSS3, HTML5, Postman, Twilio, Laravel 5, HTTP

Certifications

FEBRUARY 2022 – PRESENT

Blockchain Basics

LinkedIn

FEBRUARY 2022 – PRESENT

AWS Essential Training for Developers

LinkedIn

NOVEMBER 2021 – PRESENT

Software Architecture: From Developer to Architect

LinkedIn

OCTOBER 2021 – PRESENT

Learning NGINX

LinkedIn

OCTOBER 2021 – PRESENT

Learning Docker

LinkedIn

Skills

Libraries/APIs

REST APIs, API Development, Google API, jQuery, Vue, Stripe, Stripe Connect, Jenkins Pipeline, Google Sheets API, Google Chart API, Intercom API, Gmail API, FFmpeg

Tools

Slack, IntelliJ IDEA, Postman, GitLab, Git, GitHub, Bitbucket, Apache, Composer, Docker Hub, Docker Compose, Jira, MAMP, Terminal, Google Sheets, NGINX, SendinBlue, Jenkins, RabbitMQ

Languages

PHP, HTML, CSS, JavaScript, Java, SQL, PHP 5, PHP 7, PHP 8, CSS3, HTML5, Google Apps Script, Python, SCSS, XML, C++, GraphQL

Frameworks

Laravel, Spring, Spring Boot, Bootstrap, OAuth 2, PHPUnit, Laravel 5, Thymeleaf, CodeIgniter, Selenium

Paradigms

Agile Software Development, Object-oriented Programming (OOP), REST, RESTful Development, Microservices Architecture, Agile, API Architecture, Best Practices, Microservices, DevOps, Design Patterns, Automated Server Deployment, Event-driven Design (EDD), Unit Testing

Platforms

Linux, MacOS, Docker, Android, LAMP, WordPress, Amazon Web Services (AWS), Amazon EC2, Firebase, Apache Kafka, AWS IoT, Blockchain, Thinkific, Twilio

Storage

PostgreSQL, MySQL, Database Management, Relational Databases, JSON, MariaDB, Databases, SQLite, Redis, NoSQL, Amazon S3 (AWS S3), Elasticsearch, MongoDB

Industry Expertise

Project Management

Other

API Integration, APIs, Back-end, Full-stack, Blade, Ajax, Web Development, Websites, Data Structures, Web Technologies, Architecture, Integration, Payment Gateways, Full-stack Development, Blade Templates, Back-end Development, API Design, API Testing, Code Review, Web Scraping, Webhooks, Performance Optimization, Software Architecture, Software System Architecture Development, ClickUp, AWS DevOps, SOLID Principles, eCommerce, Documentation, Payment APIs, Team Leadership, CI/CD Pipelines, SMS, VoIP, Large-scale Projects, Customer Relationship Management (CRM), Leadership, Credit Card Processing, SaaS, Learning Management Systems (LMS), Distributed Systems, GitHub Actions, Load Balancers, Query Optimization, RESTFul APIs, Data Masking, Google Calendar, Technical Leadership, Data Engineering, HTTP, Message Queues, Data Scraping, payment processing api, Problem Solving, Scalable Architecture, Fintech, ACH Payments, Single Sign-on (SSO), Third-party APIs, Third-party Integration, Third-party SDK Integration, Front-end, Training, Team Mentoring, SMS Marketing, Email Marketing, Email Marketing Automation, Intercom, Algorithms, Cloud Architecture

Source