NestJS API Development & Optimization

@AwaisChaudhry

Hello! I understand you're working on a robust backend using NestJS and require an experienced Node.js developer to help complete it. My approach will involve designing and optimizing RESTful API endpoints with a strong focus on error handling and MongoDB query performance, ensuring a swift response time. I'll utilize my deep knowledge of asynchronous programming, particularly with websockets and background jobs, to create seamless and efficient interactions. Furthermore, my solid Git skills will ensure clean pull requests and consistent commit history, while my experience with Docker and PM2 will bring additional reliability and efficiency to the project. Together, we’ll deliver a fully functional API packed with performance improvements and automated tests to ensure it runs smoothly. What are the most critical features that you want to prioritize in the API? Best regards,

@leadconcept

Greetings, We can finish your NestJS backend, optimise MongoDB, harden error handling, and deliver a production ready API with tests, performance gains, and Docker support. Our scope will prioritise fast, maintainable REST endpoints, lock free request handling for websocket flows, and measurable latency improvements. Before we start, please confirm, 1. Which remaining endpoints and workflows require priority completion? 2. Do you have current performance baselines and access to the GitHub repo for PR based work? 3. Any required SLA for websocket and background job latency under load? Our experienced backend team is fluent in Node.js, TypeScript, NestJS, MongoDB indexing and profiling, Docker, PM2 and CI workflows, we deliver clean pull requests, centralised error middleware, and unit tests with clear documentation. Let us chat for a quick alignment so we can review the repo and propose a milestone plan, current bid is a placeholder to open the conversation. Our estimate is higher than your selected budget but we can discuss thru' chat, so for now you may ignore it. Regards, Yasir LEADconcept PS: We can share relevant code samples and performance reports on request.

@logicpowered

Hi, I understand this is gonna be a strong commitment, however, I believe that we can effectively sink in. I can finalize your production-grade NestJS backend with optimized MongoDB queries, RESTful endpoints, centralized error handling and unit tests. Basically, I have similar experience in projects like this one. Using Node.js, TypeScript, Docker, and Git-based workflows, I ensure high performance, maintainable code and deployment readiness. Let's discuss this further through a quick chat, I word to deliver it just according to your desired expectations, Looking forward to working with you, Thank-you.

@Microlent

Hello! I’m an India-based Node.js/NestJS developer and can help you take your backend to full production readiness. I specialize in scalable TypeScript architectures, MongoDB optimisation, and clean API development with real-world performance in mind. What I’ll deliver: • Fully implemented NestJS modules, controllers & services • Optimised MongoDB queries + proper indexing for low-latency responses • Centralised error-handling + structured logging (Winston/Pino) • WebSocket/event-driven flows refined for stability • Unit tests for critical logic (Jest) with 80%+ coverage • Deployment-ready Dockerfile, PM2 setup & optional Nginx config • Clean GitHub workflow with PR reviews and documented commits I’ve delivered several high-performance Node/NestJS APIs for fintech, logistics and SaaS platforms—handling background jobs, queues, and large datasets efficiently. If you’d like, I can also benchmark the current API and outline a quick optimisation plan before coding. Let’s open a chat I’m online, India-based, and ready to collaborate immediately. Best regards, Jasmin

@ZohaibRoy

⭐⭐⭐⭐⭐ Build a Robust Backend with NestJS and Node.js Expertise ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project requirements and see you are looking for a Node.js engineer to finalize your NestJS backend. You don’t need to look any further; Zohaib is here to help! My team has successfully completed 50+ similar projects, focusing on building efficient backends. I will design and refine RESTful endpoints, implement strong error-handling patterns, and optimize MongoDB queries to enhance performance, all within your budget. ➡️ Why Me? I bring 5 years of solid experience in Node.js and NestJS development, specializing in building production-grade backends. My expertise includes RESTful API design, MongoDB optimization, and asynchronous programming. Additionally, I have a strong grip on Docker, Git, and automated testing tools, ensuring a comprehensive approach to your project. ➡️ Let's have a quick chat to discuss your project details. I can show you samples of my previous work, demonstrating my capability in backend development. Looking forward to chatting with you! ➡️ Skills & Experience: ✅ Node.js Development ✅ NestJS Framework ✅ MongoDB Optimization ✅ RESTful API Design ✅ Error Handling Patterns ✅ Asynchronous Programming ✅ Docker Containerization ✅ Git Version Control ✅ CI/CD Configuration ✅ Automated Testing (Jest, Mocha) ✅ Performance Benchmarking ✅ WebSocket Integration Waiting for your response! Best Regards, Zohaib

@OutsourceMan

As a highly competent and experienced Node.js developer, MongoDB specialist, and CEO of CnELIndia, I am excited about the opportunity to implement your project using NestJS API. With 18 years of experience in the industry, my team and I have honed our skills in perfecting RESTful endpoints, ensuring solid error-handling patterns, and fine-tuning performance. In addition to our expertise in asynchronous programming and event-driven architecture, we are well-versed in technologies like Docker for containerizing services and PM2 for managing processes. Moreover, we note your emphasis on automated testing to which we confidently boast with our extensive knowledge of Jest, Mocha, and Chai. One aspect where we truly stand out is the value we place on clean coding using Git. With CnELIndia you can be assured of a repository with impeccable pull requests, clean commit histories, and an overall streamlined workflow. We also possess immense potential for mongodb optimization through query optimization and effective use of indexes. I assure you that engaging CnELIndia would bring you closer to achieving a snappy, resilient API. Let us create something great together.

@nikhilgarg96

Hi My name is Nikhil, and I am a seasoned full-stack developer with a speciality in Node.js. I have extensive experience with MongoDB and Git, and I am quite familiar with optimizing performance to ensure low request latency. My proficiency in TypeScript and NestJS further demonstrates my array of backend skills that can perfectly match your requirements for designing robust RESTful endpoints, implementing solid error-handling patterns, and optimizing MongoDB queries. Of particular relevance to your project, I have proven expertise in asynchronous programming and event-driven architecture, which are essential elements given your reliance on websockets and background jobs. Moreover, I have hands-on experience containerizing services using Docker, managing processes with PM2, and utilizing Nginx for caching and SSL termination - additional skills you're seeking in your ideal candidate. What sets me apart is my commitment to quality deliverables. In addition to skillfully crafting the remaining NestJS modules and controllers for your API surface, I will create optimized MongoDB queries with relevant indexes, manage centralized error-handling middleware and logging strategy, run comprehensive unit tests for critical logic ensuring minimum 80% coverage, produce Dockerfiles, and orchestrate CI configuration. Thanks... Thanks...

@corpmember29

Hello, I’ve reviewed your NestJS backend requirements, including RESTful module completion, MongoDB optimisation, websocket flows, and clean Git-based collaboration. With 10+ years of experience in Node.js, TypeScript, NestJS, MongoDB, Docker, PM2, and CI workflows, I can help refine the remaining API surface, implement robust error-handling layers, and improve overall latency through index-driven query optimisation and performance benchmarks. Although this is a backend-focused project, I follow a structured approach—working in clear stages, maintaining clean commits, and ensuring your modules, controllers, logging strategy, and test coverage (Jest) meet production standards. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE, WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES I am available in your preferred time zone and will collaborate through GitHub PRs to maintain a tidy, transparent workflow. I eagerly await your positive response. Thanks.

@DeveloperStation

Hi Rimon, We’ve built production-grade NestJS backends with CI/CD pipelines and extensive unit testing, delivering fully functional APIs that meet business needs. We also prioritize performance optimization, ensuring that our solutions are fast and efficient. As a senior developer with 15 years of experience, I’ve worked extensively with JavaScript and TypeScript since their early versions. I’ve led multiple startups as a technical founder, gaining valuable insights into building scalable products. In addition to backend expertise, I’m well-versed in modern front-end frameworks like React and Vue, allowing me to contribute across the full stack. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m eager to learn more about your exciting project. Best, Adil

@ska234

Hello I am a full-stack Node.js engineer with strong experience in NestJS, TypeScript, and MongoDB, and I would be excited to help push your backend to production-grade quality. I specialise in designing scalable RESTful APIs, optimising database queries, and improving request latency through efficient asynchronous programming and event-driven patterns. My background includes building websocket-driven flows, background job processors, and resilient error-handling layers. I follow clean Git workflows, collaborate through pull requests, and maintain clear commit histories. I am also comfortable containerising services with Docker, orchestrating runtime environments via PM2, and configuring reverse proxies such as Nginx for caching and SSL. Quality and maintainability matter to me I regularly implement centralised logging, performance benchmarking, and automated testing using frameworks like Jest and Mocha to maintain high coverage levels. I can also provide deployment-ready Dockerfiles and lightweight CI configurations to support smooth releases. I am ready to start immediately, contribute well-structured modules and controllers, and deliver measurable improvements to your backend. I look forward to collaborating with you to build a fast, robust API. Regards

@dvcontact

Hi there, Ready to build a lightning-fast NestJS API that scales? I can have a working demo of optimized MongoDB queries and clean error-handling middleware running in your repo within days—no long commitments needed. I specialize in production-grade Node.js backends with proven expertise in MongoDB optimization, async architecture, and Docker containerization. You get battle-tested patterns, >80% test coverage, and measurable performance gains backed by real benchmarks. Let's connect and walk through your current codebase—I'll pinpoint quick wins and outline a lean path to deployment-ready excellence. Best, Smith

@Mahihassi

Having worked extensively with Node.js and a proficient understanding of Java, I am confident that my skills and experience will greatly benefit your NestJS API development project. My coding expertise includes a deep grasp of asynchronous programming, callbacks, and event-driven architectures, essential for deploying websockets and background jobs effectively. Moreover, my firm handle on GitHub enables me to efficiently work through pull requests in shared repositories, ensuring a clean commit history. Additionally, I’m well-versed in containerizing services using Docker, managing processes via PM2, and implementing Nginx for caching and SSL termination. Optimizing MongoDB queries and improving overall request latency is a domain where I truly excel. I’ve consistently provided optimized MongoDB queries with appropriate indexes, minimizing query time significantly across various projects. Automating testing is another aspect that I bring to the table; my proficiency with tools like Jest, Mocha, or Chai can elevate the quality of your project through effective unit tests.

@TechizeBuilder

Hi Rimon K., I came across your project "NestJS API Development & Optimization" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in JavaScript, Node.js, Git, Java, MongoDB, RESTful API. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak

@ShekhWebDev21

Hi I believe my vast experience in web development, particularly with NestJS and Node.js, makes me the perfect fit for your project. My proficiency with MongoDB ensures I can intricately design and optimize your RESTful endpoints and implement effective error-handling patterns. Additionally, my understanding of Git will make it easy to seamlessly collaborate with you on GitHub and deliver a clean commit history. Having spent significant time working in asynchronous programming and being well-versed in callbacks, I can appreciate the crucial role they play in websockets and background jobs. As a freelancer who values the power of automation, I am thorough in my approach to testing, with proficiency in Jest, Mocha, and Chai. This skill set guarantees the delivery of highly-efficient NestJS modules and controllers for your API surface. Moreover, my skills extend beyond just API development. I have hands-on experience with Docker, PM2 for process management and Nginx for caching and SSL termination. Combining this expertise allows me to create seamless deployment-ready Dockerfiles that can be easily integrated into your infrastructure. Thanks

@santoshkumars17

With my extensive 5+ years of real-world experience as a Full Stack Web and Mobile App Developer, I not only bring a deep understanding of modern JavaScript/TypeScript and Node.js but also a proven ability to create highly efficient, scalable and user-friendly applications. I have an in-depth proficiency in NoSQL databases like MongoDB, making me well-equipped to optimize your MongoDB queries which are essential for the performance optimization you seek. Asynchronously handling callbacks and event-driven patterns is essential for this project, and I’ve had significant experience in that realm. My skills in using NestJS, working on RESTful endpoints, managing GitHub repositories with clean commit history and conducting effective code reviews are all-thought companions to your project's needs. Lastly, while automation is key for me too, I've developed a flair for testing with tools such as Jest, Mocha, and Chai. My knowledge of Docker, PM2 and Nginx will be valuable assets to containerise services, manage processes effectively and contribute towards optimising your API's performance. Collaborating with me means joining forces with someone committed to delivering high-quality work within stipulated deadlines. I look forward to discussing your project!

@sf264

Hello, I can push your production grade backend in NestJS across the finish line. Please connect with me over private message so that we can discuss your project requirements in more detail. Once we connect with each other we will finalize the approach as well as budget and timeline and then start. Let's take your project to the next level, Fahad.

@mykhaylob4

✋ Hi there. I can develop and optimize your NestJS API to deliver a fast, reliable, and production-ready backend with well-structured endpoints, robust error handling, and performance improvements. ✔️ I have strong experience with Node.js, NestJS, and MongoDB, including query optimization, indexing, asynchronous programming, and event-driven flows using websockets and background jobs. I have worked with Docker, PM2, Nginx caching, and SSL termination, and I follow clean Git workflows with well-documented pull requests. ✔️ For your project, I will build the remaining API modules and controllers, implement centralised error handling and logging, optimise MongoDB queries, and provide unit tests with 80 percent coverage or more. I will also prepare performance benchmarks to show improvements and provide a deployment-ready Dockerfile with simple CI setup. ✔️ The final delivery will be a fully functional, maintainable, and well-tested backend, ready for production with documentation for your team. Let’s discuss access, priority areas, and timelines so we can start immediately. Best regards, Mykhaylo

@kanika6665

Hi Rimon, I hope you're doing well. I'm excited about the opportunity to assist with your NestJS API development and optimization project. With over 12 years of experience in Full-Stack Development and expertise in Node.js and RESTful APIs, I am confident in delivering the high-quality, performance-focused backend you need. I specialize in designing robust RESTful endpoints, implementing solid error-handling patterns, and optimizing performance specifically around MongoDB query optimization and reducing request latency. My proficiency in asynchronous programming, callbacks, and event-driven architecture will ensure seamless integration of critical flows relying on websockets and background jobs. Utilizing my Git skills, I will maintain a clean commit history and collaborate effectively through pull requests on GitHub. Additionally, I am well-versed in containerizing services with Docker, managing processes with PM2, and integrating Nginx for caching and SSL termination. I prioritize automated testing and have experience with Jest, Mocha, and Chai, which will aid in delivering top-notch code quality. For your project, I commit to providing fully functional NestJS modules, optimized MongoDB queries with indexes, centralized error-handling middleware, and performance benchmarks showcasing substantial gains. I will ensure critical business logic is well-tested with unit tests and deliver a deployment-ready Dockerfile with a straightforward CI configuration. Let's work toget

@shawanay

Hi there, I've gone through your requirements and I'm from Pakistan. I have 7 years experience and I can handle the NestJS module development, MongoDB query optimization with indexing, error-handling middleware, websocket implementation, Docker containerization setup efficiently. My estimated timeline is 2-4 weeks and I'm proposing $250-$450 for this project. I'm flexible with revisions and maintain clear GitHub communication with clean commits. Let me know if you'd like to see my portfolio of NestJS projects or discuss specific requirements. Best regards, Shawana