Surendra Sahu, Developer in Ghaziabad, Uttar Pradesh, India
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Surendra Sahu

Verified Expert  in Engineering

Full-stack Developer

Location
Ghaziabad, Uttar Pradesh, India
Toptal Member Since
October 5, 2022

Surendra is a highly skilled and technically proficient professional with over 15 years of experience in system design and full-stack development. His expertise includes a deep understanding of PHP, Laravel, MySQL, HTML, CSS, Node.js, JavaScript, server management, and DevOps. Surendra is recognized for his proven track record of delivering precise and efficient software solutions that drive business growth.

Portfolio

CashnGo (as a freelancer)
JavaScript, PHP, MySQL, Amazon RDS, AWS ELB, SQL Server 2017, Full-stack...
ReConvert
Shopify, Shopify API, Shopify Theme, Laravel, PHP, Git, Jira, Slack, MySQL
Ziff Davis LLC (as a freelancer)
MySQL, Amazon RDS, Laravel, PHP, Stripe, JavaScript, Redis, RabbitMQ...

Experience

Availability

Part-time

Preferred Environment

Git, MacOS, Visual Studio Code (VS Code), Terminal

The most amazing...

...solution I've built is a cutting-edge, scalable billing system that manages billing processes while adapting to the growing needs of the business.

Work Experience

Full-stack Developer

2022 - 2023
CashnGo (as a freelancer)
  • Designed and developed a streamlined workflow system for loan underwriting, utilizing Wappler workflow to optimize efficiency and accuracy in the underwriting process.
  • Implemented seamless auto-disbursal of loans by integrating the Zepto payment gateway, leveraging my expertise in API integrations.
  • Managed repayments, waivers, and penalties by utilizing the Mifos platform.
Technologies: JavaScript, PHP, MySQL, Amazon RDS, AWS ELB, SQL Server 2017, Full-stack, Full-stack Development, Low Code, Git, Slack, Jira, Workflow

Full-stack Shopify Developer

2021 - 2022
ReConvert
  • Collaborated with Shopify functions to implement dynamic discounts, improving the customer shopping experience and increasing sales revenue.
  • Enhanced store functionality through seamless integrations with third-party systems, optimizing workflow efficiency and providing customers with an exceptional online shopping experience.
  • Developed customized data reporting and analytical tools, leveraging advanced technologies and programming languages to optimize data analysis and provide actionable insights for business decision-making.
Technologies: Shopify, Shopify API, Shopify Theme, Laravel, PHP, Git, Jira, Slack, MySQL

Full-stack Developer and DevOps Manager

2019 - 2021
Ziff Davis LLC (as a freelancer)
  • Designed and developed a LinkedIn automation tool using Python and Selenium.
  • Designed and developed email marketing software that effectively converts leads into customers.
  • Architected and developed a scalable infrastructure, incorporating auto-scaling capabilities to accommodate fluctuating user traffic and demand.
Technologies: MySQL, Amazon RDS, Laravel, PHP, Stripe, JavaScript, Redis, RabbitMQ, Autoscaling, Automated Server Deployment, CI/CD Pipelines, Python, Selenium

CTO

2010 - 2016
Pheuture Studio Pvt
  • Architected and created the IT infrastructure and mentored the team on best development practices.
  • Created a scalable solution to handle millions of transactions per day.
  • Built solutions for eCommerce, billing, call centers, and process automation.
Technologies: API Development, PHP, Java, JavaScript, Python, Redis, RabbitMQ, Git, GitHub, Bitbucket, Software QA, Asterisk, Bash, Auth0, Node.js, DevOps, Microservices Architecture, RESTful Microservices, API Integration, Chatbots, Managed Services, IT Infrastructure, MVP Design, Laravel, CodeIgniter, Shopify, Forecasting, Amazon Web Services (AWS), Agile, Startup Consulting, Business Strategy, Web Development, Google SEO, WordPress, REST APIs, CSS

Senior Full-stack Developer

2009 - 2010
Goibibo
  • Created an eCommerce platform for voice-based services.
  • Worked with teams to enable microtransactions across product divisions.
  • Integrated with payment gateways and the telecom operator API to provide microtransactions from users' mobiles.
  • Ported existing games from Tencent to mobile platforms.
Technologies: API Development, Software Architecture, DevOps, Query Optimization, Database Management, Server Management, CI/CD Pipelines, Deployment, Software QA, Team Management, eCommerce, Telecom Equipment & Solutions, Web Development, CSS, Full-stack

Engineer Manager

2008 - 2009
Goibibo
  • Migrated the myibibo social network from C# and ASP.NET to a PHP-based platform.
  • Created the social network mobile apps for Nokia and Android.
  • Managed the single sign-on (SSO) authentication for all the ibibo platforms, including blogs, the social network, and the gaming and travel portals.
Technologies: PHP, MySQL, MongoDB, Single Sign-on (SSO), SQL, Mobile Apps, Jira, VSS, Content Delivery Networks (CDN), DevOps, Web Development, CSS, Full-stack, Nokia Mobile Development

Senior Software Engineer

2007 - 2008
Goibibo
  • Developed a social network, myibibo.com, with a newsfeed and profile search option.
  • Created a click-to-call option for social network users using Asterisk and in-house hardware deployment.
  • Managed and executed various applications for tie-ups with Bollywood films and reality shows, including a platform for prime-time TV series.
Technologies: ASP.NET, API Development, VoIP, Asterisk, PHP, Android SDK, C#, Visual SourceSafe, Single Sign-on (SSO), Elasticsearch, MongoDB, MySQL, Content Delivery Networks (CDN), Query Plan, JavaScript, CSS, Full-stack

Senior Full-stack Developer

2005 - 2007
GlobalLogic
  • Migrated an existing application from the .Net 1.1 to 2.0 architecture.
  • Developed complex automated reports for Fortune 500 companies to support business decisions for employee retention and satisfaction.
  • Simplified the data flow process by creating ETL packages for automating data validation and report generation.
Technologies: ASP.NET, C#, SQL, REST APIs, API Development, Windows, Visual Studio, ETL, JavaScript, CSS, Full-stack

Web Scraping Tool

Designed and developed a LinkedIn automation tool using Python and Selenium. I created and developed email marketing software that effectively converts leads into customers. I also architected and developed a scalable infrastructure, incorporating auto-scaling capabilities to accommodate fluctuating user traffic and demand.

Email Validation and Verification Solution

https://coolvalidator.com/
CoolValidator verifies and validates emails with eight essential validation checkpoints to ensure your bulk email campaigns get to the recipient's inbox with extremely low bounce rates.

I developed a system that validates the following checkpoints:

• SMTP Ping verification
• Check the existence of the SMTP server for the domain
• Check the existence of a working mailbox where accessible
• MX Record Validation
• Check for improbable names, including vulgar, famous, bogus, or suspicious keystroke sequences.
• Check the mail exchange record of the domain to ensure it is valid and accepting mail
• Verify that individual domain-specific mailbox rules are met
• Check email address syntax and errors

Fintech Solution

https://www.cashngo.com.au/
I designed and developed a streamlined workflow system for loan underwriting, utilizing the Wappler workflow to optimize efficiency and accuracy in the underwriting process. I implemented the seamless auto-disbursal of loans by integrating the Zepto payment gateway, leveraging my expertise in API integrations. I managed repayments, waivers, and penalties through utilization.

Chrome Extension

I developed a chrome extension that gives a deep look into the rankings and tags of videos. I implemented the AB test, which automatically begins to switch out the thumbnail every 24 hours for the duration of the test. I also introduced the AI Title Generator. After you input your initial idea for a title, the tool will generate several more to help you gain the most clicks

Shopify Plugin Development

https://apps.shopify.com/reconvert-upsell-cross-sell
I collaborated with Shopify functions to implement dynamic discounts, improving the customer shopping experience and increasing sales revenue. I enhanced store functionality through seamless integrations with third-party systems, optimizing workflow efficiency and providing customers with an exceptional online shopping experience. I also developed customized data reporting and analytical tools, leveraging advanced technologies and programming languages to optimize data analysis and provide actionable insights for business decision-making.

WordPress Sandbox on Demand

https://instawp.com/
Worked on the auto-creation of WordPress sandbox and DNS configuration on demand. I handled load testing and the auto-provisioning of servers. I deployed and managed the WordPress installation using Route 53, Laravel, and Hestia. I also automated the provisioning of servers to ensure seamless scalability and availability of resources.

Languages

PHP, HTML5, SQL, JavaScript, CSS, Python, TypeScript, GraphQL, Bash, HTML, C#, Visual Basic, Java, C, C++

Frameworks

CodeIgniter, Laravel, PHP MVC, Selenium, Bootstrap, ASP.NET, React Native, Android SDK

Libraries/APIs

Node.js, React, jQuery, REST APIs, API Development, JavaScript Charting, Vue, Stripe, Zoho API, Shopify API, LinkedIn API

Tools

Git, SendGrid, GitHub, GitLab, Bitbucket, RabbitMQ, Visual Studio, Mailchimp, Docker Compose, Auth0, Shopify Plus, Photoshop 7, Asterisk, Visual SourceSafe, Query Plan, Jira, VSS, VPN, Asterisk REST Interface (ARI), Kamailio, Vultr, Terminal, AWS ELB, Slack

Paradigms

Serverless Architecture, Database Design, ETL, Continuous Integration (CI), Continuous Delivery (CD), Domain-driven Development, Web Application Architecture, Web App Design, Responsive Layout, DevOps, Microservices Architecture, Agile, Microservices, Automated Server Deployment

Platforms

Windows, Linux, MacOS, Docker, CentOS, Debian, Ubuntu, DigitalOcean, WordPress, Ubuntu Linux, Google Chrome, Shopify, Amazon Web Services (AWS), Twilio, Visual Studio Code (VS Code), LAMP, Firebase

Storage

MySQL, Redis, Amazon S3 (AWS S3), MariaDB, Database Backups, Databases, SQL Server DBA, Elasticsearch, MongoDB, Database Management, SQL Server 2017

Industry Expertise

Web Design

Other

Opera Extensions, CI/CD Pipelines, Serverless, WebSockets, Payment APIs, Message Queues, Web Development, CTO, App Infrastructure, Domain-driven Design (DDD), APIs, Full-stack, Scraping, Web Scraping, Algorithms, Back-end, Front-end, Data Scraping, Store Scraping, Typesense, Machine Learning, IT Networking, Networking, Chrome Extensions, Software Development, Graphical User Interface (GUI), VoIP, Single Sign-on (SSO), Content Delivery Networks (CDN), Mobile Apps, Software Architecture, Query Optimization, Server Management, Deployment, Software QA, Team Management, eCommerce, Telecom Equipment & Solutions, RESTful Microservices, API Integration, Chatbots, Managed Services, IT Infrastructure, MVP Design, Forecasting, Startup Consulting, Business Strategy, SIP, Google SEO, Full-stack Development, Online Payments, Amazon RDS, Low Code, Workflow, Shopify Theme, Autoscaling, Shopify Customizations, Architecture, Data Structures, Technical Leadership, Solution Architecture, Nokia Mobile Development

2001 - 2005

Bachelor's Degree in Electrical Engineering

Indian Institute of Technology Roorkee - Roorkee, India

DECEMBER 2009 - PRESENT

Young Entrepreneurs Program in Business Strategy

Naspers with Harvard Business School

Collaboration That Works

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