Kamlesh Kumar, Developer in Ghaziabad, Uttar Pradesh, India
Kamlesh is available for hire
Hire Kamlesh

Kamlesh Kumar

Verified Expert  in Engineering

Full-stack Developer

Location
Ghaziabad, Uttar Pradesh, India
Toptal Member Since
July 2, 2021

Kamlesh is a senior full-stack engineer with a decade of experience focusing on business, AV, IoT, medical, and eCommerce applications. His experience covers the entire development lifecycle, but he specializes in the front end with React, JavaScript, and TypeScript and the back end with Node.js and C#. Kamlesh has experience working with enterprise clients like Walmart, Gartner, and Cruise.

Portfolio

Allegis - Cruise Automation
React, TypeScript, Node.js, Front-end, GraphQL, PostgreSQL, UI Design...
Gartner - Digital Markets Engineering - Capitalizable
React, Node.js, TypeScript, Front-end, D3.js, Elasticsearch, MySQL, JavaScript...
Xebia Group
React, JavaScript, Redux, Jest, Enzyme, Front-end, CSS, Charts, REST APIs...

Experience

Availability

Full-time

Preferred Environment

Windows, Visual Studio Code (VS Code), GitHub

The most amazing...

...project I've worked on was with Cruise; it was for autonomous vehicles data management. We created a lot of visualization tools for the ML engineers.

Work Experience

Full-stack and Front-end Developer

2022 - 2023
Allegis - Cruise Automation
  • Developed a filter component plugin, which can be used with grids and tables. It can define configurations like fields and types and automatically provides input fields for the specified field.
  • Built a Robotype visualization library where users can see the detailed view of passed artifacts in Robotype runs. The visualization is similar to modal training in Python.
  • Fixed most customer pending requests in the first two months after joining, including some small features and bugs.
Technologies: React, TypeScript, Node.js, Front-end, GraphQL, PostgreSQL, UI Design, UX Design, Next.js, Full-stack, Agile, Unit Testing, User Experience (UX), Google Cloud Platform (GCP), Figma, Storybook, Artificial Intelligence (AI), Autonomous Robots, Front-end Development, Back-end Development, Webpack, ECMAScript (ES6), Cypress, SaaS, DevOps, CI/CD Pipelines, JSON, React Redux, Testing, Babel, HTML5, Flux, Full-stack Development, Formik, API Integration, Google Sign-in, UI Components, Design Systems, Web Development, UI Development, OpenAI, API Development, Styled-components, Axios, MongoDB, Front-end Design, Front-end Architecture, React Router, React Query, Context API, Minimum Viable Product (MVP), ChatGPT, Mobile First, Code Review, Cloud, JSX, Localization

React and Node.js Developer

2021 - 2022
Gartner - Digital Markets Engineering - Capitalizable
  • Built software comparison components where users can choose multiple software and quickly compare them.
  • Contributed to an alternative module while finding product alternatives. Handled back-end changes with Elastic query.
  • Worked on performance optimizations.
Technologies: React, Node.js, TypeScript, Front-end, D3.js, Elasticsearch, MySQL, JavaScript, Charts, REST APIs, Tailwind CSS, Agile, Unit Testing, Test-driven Development (TDD), User Experience (UX), Docker, Figma, Responsive Web Design (RWD), Front-end Development, Webpack, Material UI, ECMAScript (ES6), Cypress, Next.js, Sass, SaaS, JSON, React Redux, Testing, SCSS, Babel, HTML5, Flux, Postman, Full-stack Development, Formik, API Integration, Server-side Rendering (SSR), Google Sign-in, Bootstrap, Material Design, UI Components, Design Systems, Web Development, UI Development, NestJS, API Development, Styled-components, Axios, MongoDB, Front-end Design, Front-end Architecture, React Router, React Query, Chart.js, Context API, NPM, Mobile First, Code Review, Cloud, JSX, Pixel Perfect, Localization

Senior Consultant | Walmart

2021 - 2022
Xebia Group
  • Collaborated with the product and design team and participated in groomings.
  • Served as a primary front-end team member working on an eCommerce web app.
  • Optimized accessibility issues and standards in the application, considering A11Y rules.
  • Created filter components, vouchers, and recipe views.
  • Added test cases for old code and optimized existing code and test cases.
Technologies: React, JavaScript, Redux, Jest, Enzyme, Front-end, CSS, Charts, REST APIs, Agile, Test-driven Development (TDD), User Experience (UX), eCommerce, GraphQL, Apollo, CSS3, Responsive Web Design (RWD), Front-end Development, Webpack, Material UI, Vanilla JS, ECMAScript (ES6), REST, SaaS, DevOps, CI/CD Pipelines, JSON, React Redux, Testing, SCSS, Babel, HTML5, Flux, Postman, Full-stack Development, API Integration, Server-side Rendering (SSR), Google Sign-in, Bootstrap, UI Components, Web Development, UI Development, API Development, Styled-components, Axios, MongoDB, Front-end Design, Front-end Architecture, React Router, React Query, NPM, Mobile First, Code Review, Cloud, JSX, Pixel Perfect, Localization

Senior Full-stack Developer

2017 - 2021
Spraxa Solutions Pvt
  • Created a visitor application in React, Node.js, and React Native, developing most of the web back end and front end.
  • Developed a solution to track sales and coolers at remote locations. This was part of a bigger project with 4-5 applications built in React.
  • Built a case management system for a medical software provider client while working as a full-stack developer.
  • Led a team of five developers working on an IoT project for 2.5 years and played a key role in requirements discussions and demos.
Technologies: C#, Elastic, Node.js, React, Redux, MongoDB, MySQL, PostgreSQL, JavaScript, APIs, Canvas 2D, Charts, Visual Studio, Healthcare IT, Mirth Connect, Electronic Medical Records (EMR), REST APIs, Amazon Web Services (AWS), Web Services, Expo, React Native, Data Visualization, ASP.NET, .NET Core, Front-end Development, ECMAScript (ES6), REST, Architecture, Software Architecture, JSON, React Redux, Team Leadership, Microservices, Babel, HTML5, Flux, Full-stack Development, API Integration, Single Sign-on (SSO), Material Design, Web Development, UI Development, FFmpeg, jQuery, ASP.NET MVC, DigitalOcean, Axios, Data Management, Front-end Design, NPM, Startups, Minimum Viable Product (MVP), Socket.IO, Code Review, Leadership, Healthcare, Pixel Perfect

Software Developer

2015 - 2017
Spraxa Solutions
  • Developed a tracking system, using Google and ALK Maps, allowing clients to track the location of their trucks and trailers.
  • Created invoice reports using C1 Reports and created a system in C# to generate automated reports based on JSON information.
  • Built a mobile application using Sencha Touch, allowing drivers to track orders and tasks and check routes.
  • Integrated multiple third-party APIs to fetch and use data in our application.
  • Integrated Quickbooks with our application so that it was user-friendly and invoices could be shredded directly on QuickBooks through tasks. Customer, order, and invoice data were synced between the apps.
Technologies: C#, JavaScript, HTML, SQL, Ext JS, User Interface (UI), APIs, GitHub, Maps, Express.js, Visual Studio, ASP.NET, Front-end Development, AngularJS, Live Chat, Web Scraping, Mobile, Twilio API, UI Development, jQuery, SignalR, Data Management, Twilio, Angular, NPM, Socket.IO, Leadership, Healthcare

Trainee Software Developer

2013 - 2015
Durlabh Computers
  • Built a dispatching system for tailored logistics, which included creating and modifying trips and adding modifying tasks during trips.
  • Created Ext JS grids and forms for multiple screens, including multilevel forms.
  • Developed views, procedures, and triggers for the business logic.
  • Learned .NET and SQL and developed my first application here.
Technologies: .NET, C#, SQL, JavaScript, HTML, Ext JS, User Interface (UI), Visual Studio, ASP.NET, Live Chat, Active Server Pages (ASP), Mobile, jQuery, Java

Tailored Logistics Solutions (TLS)

https://www.tailoredlogistics.com/trucking-software-solutions/
A web application that includes orders, customers, trips, shipping information, a dispatching system, a truck tracking system, and commodities. I worked on this project for two years as a full-stack developer.

CoolR

https://www.coolrgroup.com/
An IoT solution to track coolers and outlets remotely. IoT devices are installed at the outlets inside coolers to collect data such as temperature, light, humidity, motion, GPS, and images to track the stocks. All data is synced to the cloud using hubs. I worked on this project for four years as a senior and lead developer, handling back-end, mobile, and web applications. The project involved four applications–three web and one mobile.

NUVO EMR | Scheduling System

A React-based electronic medical records application used to manage patient information and schedule cases with doctors for operations and other procedures. Doctors can manage case information, media, and images. I worked in the front end of this application as a senior engineer.

Visitor App

An application to keep track of visitors at offices and similar places. Temporary passes can be generated and shared on mobile devices via SMS and visitors can be identified via integrated face recognition. I worked on this application as a full-stack developer.

Case Management System (CMS)

An application used to schedule appointments and tasks for a children's health department. It also includes a survey system to collect infant, parent, and other information. I worked on this application as a lead developer.

Languages

JavaScript, SQL, HTML5, HTML, CSS, TypeScript, ECMAScript (ES6), C#, SCSS, GraphQL, CSS3, Sass, Active Server Pages (ASP), Java

Frameworks

Ext JS, Redux, Tailwind CSS, Material UI, .NET, React Native, Jest, Next.js, ASP.NET, Bootstrap, Express.js, .NET Core, AngularJS, Vanilla JS, Cypress, Flux, ASP.NET MVC, NestJS, Angular

Libraries/APIs

Node.js, React, React Redux, React Router, Context API, Chart.js, REST APIs, API Development, Mirth Connect, D3.js, Twilio API, Formik, FFmpeg, jQuery, SignalR, Socket.IO

Tools

GitHub, Visual Studio, Git, NPM, JSX, Elastic, Canvas 2D, Figma, Postman, Expo, Webpack, Babel, ChatGPT

Paradigms

Agile, Unit Testing, Test-driven Development (TDD), UI Design, UX Design, Responsive Web Design (RWD), Testing, REST, DevOps, Microservices

Platforms

Visual Studio Code (VS Code), Azure, Amazon Web Services (AWS), Google Cloud Platform (GCP), Docker, Mobile, DigitalOcean, Twilio

Storage

MongoDB, PostgreSQL, Amazon S3 (AWS S3), Elasticsearch, JSON, MySQL, Azure SQL, Google Cloud

Other

User Experience (UX), User Interface (UI), Front-end, Full-stack, Front-end Development, API Integration, UI Components, Web Development, UI Development, Styled-components, Axios, Front-end Design, Front-end Architecture, Startups, Minimum Viable Product (MVP), Mobile First, Code Review, Pixel Perfect, Healthcare IT, APIs, Enzyme, Web App UX, eCommerce, Data Visualization, SaaS, Full-stack Development, Material Design, Design Systems, React Query, Leadership, Cloud, Localization, Maps, Charts, Extensions, Electronic Medical Records (EMR), Data Grids, Web Services, Apollo, Storybook, Artificial Intelligence (AI), Autonomous Robots, Back-end Development, Live Chat, CI/CD Pipelines, Architecture, Software Architecture, Web Scraping, Team Leadership, Server-side Rendering (SSR), Google Sign-in, Single Sign-on (SSO), OpenAI, HL7, Data Management

Industry Expertise

Healthcare

2013 - 2016

Bachelor's Degree in Computer Science

Uttar Pradesh Technical University - Kanpur, India

2010 - 2013

Three-year Diploma in Information Technology

Board of Technical Education Uttar Pradesh - Lucknow, India

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.

1

Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring