Sunil Karmur

Results-driven Senior Full Stack Engineer with over 10 years of experience developing scalable web applications using React, Typescript, Node.js, Laravel, FastAPI, Python, and MySQL. Specializes in full-stack development, API integrations, and CI/CD automation, delivering secure and high-quality solutions that enhance business performance.

• Received the award for being the “Best Employee of the Year 2018.”

Website: https://www.oravoice.io
Role: Technical Lead
Tools & Technologies: React (TypeScript), FastAPI (Python), Zapier, Make Automation, AI Calling, OpenAI, Twilio

Responsibilities:

• Led the development of inbound and outbound AI voice calling solutions.
• Designed and developed scalable backend APIs using FastAPI (Python).
• Built real-time communication flows for AI-powered voice interactions.
• Integrated OpenAI and Twilio services for intelligent voice automation.
• Implemented workflow automation using Zapier and Make to improve operational efficiency.
• Optimized AI response time and overall call performance for seamless communication.
• Collaborated with cross-functional teams to ensure scalable system architecture and smooth delivery.

Website: https://www.lagunacreek.io
Role: Sr. Full Stack Engineer
Tools & Technologies: React JS (TypeScript), FastAPI (Python), React Native, Next.js

Responsibilities:

• Developed scalable web and mobile applications with modern frontend architecture.
• Built RESTful APIs using FastAPI to support high-performance backend systems.
• Designed reusable UI components and optimized frontend performance using React TypeScript.
• Implemented cross-platform mobile application features using React Native.
• Improved application responsiveness, maintainability, and overall user experience.
• Collaborated with backend and product teams to deliver scalable and efficient solutions.

Website: https://www.twilio.com
Role: Senior Full Stack Engineer
Tools & Technologies: React JS (TypeScript), TypeScript, Custom NPM Packages, Voice Calling, Inbound & Outbound Calling, Twilio Flex UI, Node.js (AWS Lambda), Socket.IO, Twilio Flex Plugin

Responsibilities:

• Implemented advanced Twilio communication workflows for voice and messaging systems.
• Customized Twilio Flex UI to enhance communication and customer support experiences.
• Built and maintained real-time communication systems using Socket.IO.
• Developed reusable custom NPM packages for communication modules.
• Built serverless backend services using Node.js and AWS Lambda.
• Managed inbound and outbound voice calling systems with optimized performance.
• Integrated Twilio APIs for seamless voice, messaging, and support communication.

Website: https://www.websterbank.com
Role: Senior React Developer
Tools & Technologies: React (TypeScript), Redux, Styled Components, Jest, React Testing Library (RTL), SQL Server, Agile, .NET Core

Responsibilities:

• Developed enterprise-grade banking interfaces using React and TypeScript.
• Built reusable and scalable UI components following best development practices.
• Implemented state management using Redux for complex application workflows.
• Developed unit and integration tests using Jest and RTL to improve application stability.
• Worked closely with Agile teams in sprint-based development cycles.
• Collaborated with backend teams to integrate secure banking APIs and workflows.
• Improved application performance, maintainability, and user experience.

Platform: App Store
Role: Technical Lead
Tools & Technologies: React Native, React, TypeScript, Python, MySQL, Stripe, BBPOS WisePOS 3 Integration

Responsibilities:

• Led the development of a CRM mobile application for customer and payment management.
• Designed and developed scalable frontend and backend solutions.
• Integrated Stripe payment gateway for secure transaction processing.
• Implemented BBPOS WisePOS 3 device integration for seamless payment handling.
• Optimized MySQL database performance and backend workflows.
• Built secure and scalable payment-related modules for transaction management.
• Coordinated with teams to ensure application performance and feature delivery.

Role: Senior Full Stack Engineer
Tools & Technologies: React JS (TypeScript), TypeScript, NestJS, Sequelize, Node.js, Microservices

Responsibilities:

• Built scalable microservices architecture using NestJS and Node.js.
• Developed frontend modules using React TypeScript for better scalability.
• Implemented secure authentication and authorization workflows.
• Optimized API performance and backend response times.
• Developed reusable and maintainable business logic for enterprise applications.
• Worked closely with teams to improve application architecture and performance.

Website: https://patricia-ai.com
Role: Senior Full Stack Developer
Tools & Technologies: React (TypeScript), TypeScript, HTML5, CSS3, Styled Components, Jest

Responsibilities:

• Developed responsive and scalable AI platform user interfaces using React TypeScript.
• Built reusable UI components with optimized frontend architecture.
• Implemented testing strategies using Jest to improve application quality.
• Improved application responsiveness, accessibility, and overall user experience.
• Collaborated with product teams to deliver scalable frontend features.

Website: https://mody.visualestate.com
Role: Senior Full Stack Developer
Tools & Technologies: React (TypeScript), Laravel 8, Cron Jobs, Elasticsearch, AWS Lambda, Redis

Responsibilities:

• Developed property management system features with scalable architecture.
• Integrated Elasticsearch to improve search performance and filtering capabilities.
• Built scheduled jobs and automation using Cron Jobs.
• Implemented Redis caching to optimize application performance.
• Used AWS Lambda for scalable serverless functionality.
• Developed frontend and backend modules to improve overall system efficiency.

Website: https://www.fix-mart.com/fixmart-app
Role: Sr. Software Engineer
Tools & Technologies: React Native, React, TypeScript, NFC Devices, XML API, Socket.IO, Firebase

Responsibilities:

• Developed a mobile-based service management application.
• Integrated NFC hardware devices and XML APIs.
• Built real-time communication systems using Socket.IO.
• Implemented Firebase authentication and push notification features.
• Improved application performance and mobile user experience.

Website: https://upos-app.globalgarner.com
Role: Sr. Software Developer
Tools & Technologies: React JS, HTML5, CSS3, MySQL, Laravel 5.5, AWS

Responsibilities:

• Developed retail POS applications for billing and inventory management.
• Built scalable frontend and backend modules using React and Laravel.
• Improved database performance and deployment workflows.
• Maintained secure and optimized business operations.

Website: https://www.globalgarner.com
Role: Sr. Software Developer
Tools & Technologies: React JS, HTML5, CSS3, MySQL, Laravel 5.5

Responsibilities:

• Developed responsive company web platforms and frontend modules.
• Built backend features and database management systems.
• Maintained and optimized website performance and scalability.
• Improved overall user experience and functionality.

Website: https://www.getthereferral.com
Role: Sr. Software Developer
Tools & Technologies: Laravel 8, React JS, HTML5, CSS3, MySQL

Responsibilities:

• Built referral management systems with frontend and backend integration.
• Developed APIs and user management workflows.
• Optimized application performance and business workflows.
• Improved scalability and maintainability of the platform.

Website: https://pusher.com
Role: Software Developer
Tools & Technologies: Laravel 8, jQuery, Blade, Node.js (Support Chat)

Responsibilities:

• Developed support chat functionality with real-time communication.
• Built frontend modules and admin panel features.
• Enhanced customer support workflows and communication systems.
• Maintained backend functionalities and system improvements.

• Strategic Technical Leadership
• Architectural Vision & Problem Solving
• AI Integration & Automation Expertise
• Effective Client Communication & Stakeholder Management
• Strong Requirement Analysis & Business Understanding
• Agile Development & Operational Excellence
• Leadership & Team Collaboration
• Smart Working with Solution-Oriented Approach
• Dedicated Client-Focused Delivery
• Strong Ownership & Accountability
• Excellent Analytical & Problem-Solving Skills
• Adaptability & Continuous Learning
• Time Management & Delivery Commitment
• High Attention to Quality & Performance Optimization