I will offer my expertise in developing nodejs application

Backend API Setup (Node.js)

will build a basic backend API using Node.js and Express/Nest with clean code and proper structure. This package is ideal for small features, MVPs, or validating an idea. Includes API logic, basic database setup, and authentication if required.

Delivery Time
2 Days
Package Includes: see all
data:image/svg+xml,%3csvg%20width='18'%20height='18'%20viewBox='0%200%2018%2018'%20fill='none'%20xmlns='http://www.w3.org/2000/svg'%3e%3cpath%20d='M2.02684%207.18506L0.777169%208.43236C0.626925%208.58246%200.542442%208.78608%200.542295%208.99845C0.542147%209.21082%200.626347%209.41456%200.776382%209.56486L2.02524%2010.8149L1.56917%2012.517C1.51419%2012.7222%201.54297%2012.9408%201.64918%2013.1248C1.7554%2013.3088%201.93035%2013.443%202.13554%2013.498L3.83684%2013.9539L4.29446%2015.6595C4.3494%2015.8646%204.48357%2016.0396%204.66748%2016.1458C4.7586%2016.1984%204.85918%2016.2326%204.9635%2016.2463C5.06781%2016.26%205.17381%2016.253%205.27543%2016.2258L6.98201%2015.7676L8.23065%2017.0185C8.38086%2017.1687%208.58458%2017.2531%208.79701%2017.2531C9.00943%2017.2531%209.21316%2017.1687%209.36337%2017.0185L10.6135%2015.7696L12.3148%2016.2255C12.52%2016.2805%2012.7386%2016.2517%2012.9226%2016.1455C13.1065%2016.0393%2013.2408%2015.8643%2013.2957%2015.6591L13.7516%2013.9578L15.4582%2013.4997C15.5598%2013.4724%2015.6551%2013.4253%2015.7386%2013.3612C15.822%2013.2971%2015.892%2013.2171%2015.9446%2013.126C15.9971%2013.0348%2016.0312%2012.9341%2016.0448%2012.8297C16.0584%2012.7254%2016.0513%2012.6194%2016.024%2012.5177L15.5654%2010.8127L16.815%209.5654C16.9648%209.415%2017.049%209.21149%2017.0494%208.99923C17.0497%208.78698%2016.9661%208.58321%2016.8168%208.43234L15.5679%207.18225L16.0238%205.48095C16.0788%205.27576%2016.05%205.05713%2015.9438%204.87317C15.8376%204.6892%2015.6626%204.55496%2015.4574%204.49998L13.7554%204.0439L13.2972%202.33733C13.2601%202.20189%2013.1883%202.07844%2013.089%201.97914C12.9897%201.87984%2012.8663%201.80809%2012.7308%201.77097C12.5962%201.7349%2012.4528%201.73462%2012.3152%201.77155L10.6102%202.23015L9.36134%200.980061C9.21124%200.829817%209.00762%200.745334%208.79525%200.745186C8.58288%200.745038%208.37914%200.829237%208.22884%200.979271L6.97952%202.22832L5.27821%201.77246C5.07302%201.71748%204.85439%201.74626%204.67043%201.85248C4.48646%201.95869%204.35222%202.13364%204.29724%202.33883L3.84137%204.04013L2.13479%204.4983C2.03314%204.52559%201.93786%204.57263%201.8544%204.63676C1.77095%204.70088%201.70094%204.78083%201.6484%204.87202C1.59585%204.96321%201.5618%205.06387%201.54818%205.16823C1.53456%205.27259%201.54164%205.37862%201.56902%205.48024L2.02684%207.18506ZM9.69208%2013.3933C9.38422%2013.3107%209.12178%2013.1092%208.96249%2012.8331C8.80321%2012.557%208.76013%2012.229%208.84273%2011.9211C8.92533%2011.6132%209.12685%2011.3508%209.40295%2011.1915C9.67904%2011.0322%2010.0071%2010.9892%2010.315%2011.0718C10.6228%2011.1544%2010.8853%2011.3559%2011.0446%2011.632C11.2038%2011.9081%2011.2469%2012.2361%2011.1643%2012.544C11.0817%2012.8519%2010.8802%2013.1143%2010.6041%2013.2736C10.328%2013.4329%209.99994%2013.4759%209.69208%2013.3933ZM11.4501%205.90391L12.4394%207.16323L6.13894%2012.1088L5.14962%2010.8494L11.4501%205.90391ZM7.89675%204.62011C8.04919%204.66101%208.19208%204.73153%208.31726%204.82766C8.44244%204.92378%208.54747%205.04361%208.62634%205.18032C8.70521%205.31703%208.75638%205.46794%208.77692%205.62442C8.79747%205.78091%208.787%205.93991%208.7461%206.09235C8.7052%206.24478%208.63467%206.38767%208.53855%206.51285C8.44243%206.63803%208.32259%206.74306%208.18588%206.82193C8.04917%206.90079%207.89827%206.95196%207.74178%206.97251C7.5853%206.99306%207.4263%206.98259%207.27386%206.94169C6.966%206.85908%206.70356%206.65757%206.54427%206.38147C6.38499%206.10537%206.34191%205.77731%206.42451%205.46945C6.50711%205.16159%206.70863%204.89915%206.98473%204.73987C7.26082%204.58059%207.58889%204.53751%207.89675%204.62011Z'%20fill='%23D8BC7F'/%3e%3c/svg%3e4

Service details

I’m a Backend Engineer with over 4 years of experience building scalable, secure, and high-performance backend systems.


I specialize in Node.js, TypeScript, Express.js, and Nest.js, with strong experience in designing REST and GraphQL APIs and following clean architecture principles.I’ve worked extensively with cloud platforms like AWS and Azure, including serverless solutions using AWS Lambda and Azure Functions.


My database experience includes PostgreSQL, MongoDB, Redis, DynamoDB, and Azure Cosmos DB, along with ORMs like TypeORM and Sequelize.I have hands-on experience integrating third-party APIs such as Google APIs, WhatsApp, Zoho, Datamyne, and payment or notification services. I’ve also built real-time features using WebSockets and background jobs using queues and cron-based scheduling.


Recently, I’ve worked on AI-powered features by integrating CopilotKit and LangGraph to build conversational chatbots that interact with backend systems. I focus on writing clean, maintainable code, adding validations, writing tests, and improving system performance.I enjoy understanding business problems deeply and translating them into reliable technical solutions.


I’m comfortable working independently, communicating clearly, and delivering production-ready code on time.If you’re looking for someone who can take ownership of backend development and build scalable systems with long-term stability in mind, I’d be happy to collaborate.

Key details

  • Backend Framework
    Node.jsExpress.jsnest.js
Special note from freelancer
I deliver clean, production-ready backend code with clear communication and on-time delivery. I focus on long-term solutions, not quick fixes. Message me if you’re unsure about the right package.
FAQs
What technologies do you use?

I mainly work with Node.js, TypeScript, Express.js, Nest.js, PostgreSQL, MongoDB, Redis, AWS, and Azure. I also handle serverless, REST APIs, GraphQL, and third-party integrations.

Do you charge too much ?

I don’t ask for payment until I show you a demo and you’re happy with the work. My main focus is learning, improving, and providing value.

Can you work on existing backend code?

Yes. I can fix bugs, refactor code, add new features, improve performance, or restructure existing backend systems.

Do you provide deployment and cloud setup?

Yes. I can deploy applications on AWS or Azure, including serverless setup, environment configuration, and basic monitoring.

Will you provide clean code and documentation?

Yes. I always follow clean architecture practices and provide API documentation using Swagger or Postman and Hoppscotch when required.

Can you integrate third-party APIs or AI features?

Yes. I have experience integrating Google APIs,Open-AI,Gemini,Claude , WhatsApp, Zoho, Datamyne, and AI chatbots using CopilotKit.

Do you offer support after delivery?

Yes. I provide limited post-delivery support to fix issues related to the delivered work.

Sanket Chavan

Sanket Chavan

    Software Engineer

    Hey, I’m Sanket 👋 I’m a backend developer with 4 years of experience working with Node.js, TypeScript, Express, Nest.js, AWS, and Azure. I like building clean, scalable backends and solving real problems. Easy to communicate with and focused on delivering solid, production-ready work. Feel free to message me to discuss your project.

    Osdire section promoting freelance work opportunities

    Launch Offer Earn up to $500* extra on your first 10 offers created

    Terms and conditions apply