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My production API is running on Node 16, and I now need it fully upgraded to Node 22. The jump breaks several dependencies—some are deprecated, others removed entirely—so the work goes beyond just bumping [login to view URL] versions. You will: • Analyse the current dependency tree, pin what still works, and replace or manually migrate anything that no longer compiles under Node 22. • Refactor hotspots you encounter for cleaner, faster execution; I’m aiming for measurable performance gains once the codebase is modernised. The application is an API service only (no UI), deployed through a typical CI pipeline, so the deliverable is a clean, install-and-run repository passing the existing test suite under Node 22. If you’ve already handled major LTS jumps and know the pain points around native modules, ESM/CommonJS quirks, and NPM deployments, you’re exactly who I need. Please outline relevant projects you’ve completed and your similar experience. Thank you
Project ID: 40445729
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249 freelancers are bidding on average $1,039 USD for this job

Hello, I understand you need a Node.js migration from 16 to 22 for an API service, with a focus on dependency analysis, compatibility fixes, and performance improvements. I will map the current dependency tree, pin still-working modules, and replace or manually migrate those that fail under Node 22. I’ll refactor hotspots for cleaner, faster code and ensure the repository installs cleanly and passes the existing test suite in your CI setup. I’ve led similar LTS jumps, tackled native module issues, ESM/CJS quirks, and ensured reliable NPM deployments. I’ll document what changed, why, and how to validate it against your tests, with a plan for risk mitigation and rollback where needed. This will result in a ready-to-run repo that meets Node 22 requirements without regressions. Please provide 8-10 concise, high-value technical questions I should ask to tailor the migration plan, avoiding generic queries. Keep them focused on dependencies, tests, CI/CD, and risk areas. Best regards,
$1,500 USD in 11 days
9.2
9.2

Hi. In your project description you mentioned upgrading Node 16 to Node 22 and that many deps will break or be removed, which needs careful handling. The best way to do this is I’ll map the full dependency tree, lock the ones that still work, then swap or patch the broken ones (native modules, ESM vs CommonJS) and update code where needed until everything compiles and tests pass on Node 22. I'll also take care of workflow of CI pipeline updates, test fixes and coverage checks, and NPM install/build steps so the repo is clean and run-ready. If you'd like, I can outline the cleanest architecture for this so it scales smoothly without future rebuild. I’ll keep updates clear, focus on quality and saving you time, and aim for real speed gains so it helps revenue too. I can stay around after delivery for support and future bumps. Let me know if you'd like me to break this down clearly. Regards, Nick.
$750 USD in 6 days
8.4
8.4

Hi there, I have spent the decade working on Node.js-based production APIs and large-scale backend systems, including handling major version upgrades, dependency migrations, and performance optimization, and I can jump in to upgrade your system from Node 16 to Node 22 smoothly. Once you share your codebase, I will analyse the full dependency tree, fix deprecated or incompatible packages, handle ESM/CommonJS conflicts, and ensure the application runs cleanly under Node 22 with your existing CI pipeline. I will also refactor critical areas where needed to improve stability and performance while keeping the current API behavior intact. I would request to connect once so we can review the upgrade scope properly. Thanks, Rahul A.
$765 USD in 4 days
7.8
7.8

Hi, We’ve successfully migrated multiple Node.js applications from version 14 to 16 and 16 to 18, so we know the challenges involved. We also have extensive experience with CI/CD pipelines and can ensure your code is production-ready. For your project, we’ll start with a detailed analysis of the existing code and dependencies. We’ll identify deprecated packages and replace them with modern alternatives, while also refactoring any problematic areas for improved performance. We’re fully committed to delivering a high-quality product. With us, you’ll get a dedicated team of developers who can handle both front-end and back-end tasks as needed, without extra costs. Let’s schedule a quick 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 regards, Adil
$1,237.50 USD in 21 days
7.3
7.3

I can upgrade the API from Node 16 to Node 22 and make the repository cleanly install, run, and pass the existing test suite under the new runtime. My approach would be to first audit the dependency tree and identify packages that break under Node 22, including deprecated modules, native bindings, ESM/CommonJS conflicts, and npm install issues. Then I’ll update or replace incompatible dependencies, refactor failing code paths, and clean up hotspots where the newer runtime exposes performance or compatibility problems. Deliverables will include a working Node 22 branch, updated package files, any required code changes, passing tests, and a short summary of what changed plus any deployment notes for the CI pipeline.
$1,150 USD in 7 days
7.5
7.5

Hello I have strong experience upgrading Node.js applications across major LTS versions, including handling dependency migrations, deprecated packages, native module rebuilds, and ESM/CommonJS compatibility issues in production API environments. I will audit the full dependency tree, identify breaking changes between Node 16 and Node 22, replace unsupported libraries, and refactor unstable areas to ensure the API runs cleanly and efficiently under the new runtime. My focus will be stability, performance improvements, and maintaining CI/CD compatibility throughout the upgrade. I’ve worked on backend modernization projects involving Express, NestJS, authentication systems, database integrations, and deployment pipelines, delivering clean install-and-run repositories with passing test suites and optimized performance after migration. Thanks CHRISINA
$1,000 USD in 15 days
6.9
6.9

Hi, this project involves a critical Node.js runtime upgrade that impacts dependency compatibility and performance optimization. The real engineering risk lies in dependency migration and ensuring stable execution under the new Node version. I usually structure such migrations by first analyzing the full dependency graph, isolating deprecated or broken modules, and applying targeted refactoring for hotspots to improve runtime efficiency. While my core experience is in AI and Python stacks, I have led complex system refactors that required deep dependency analysis and performance tuning, which aligns with the challenges here. I recommend separating the migration into phases: dependency validation, code refactoring, and integration testing, to mitigate risk and maintain production stability. Systems I design prioritize long-term maintainability and clean test coverage to support ongoing upgrades and CI/CD reliability. I can start by outlining a detailed dependency audit and migration plan, mapping out critical modules for refactor, and reviewing test coverage to ensure smooth Node 22 adoption. Thanks, Hercules
$1,500 USD in 7 days
6.9
6.9

Hi, I can upgrade your production Node API from Node 16 to Node 22 by auditing the full dependency tree, resolving deprecated or removed packages, handling native module issues, and fixing ESM/CommonJS compatibility problems until the repository installs, runs, and passes tests cleanly. My experience includes Node.js/Express API modernization, major LTS migrations, CI/CD pipeline fixes, package refactoring, performance optimization, and backend cleanup for production systems where stability and measurable speed improvements matter. I would first create a Node 22 migration branch, identify breaking dependencies, pin or replace packages safely, refactor performance hotspots, update build/test scripts, validate the CI pipeline, and deliver a documented, install-and-run repository. Best regards, Stratos
$1,125 USD in 7 days
7.2
7.2

Hi dear employer! I've checked your project's description and you want to upgrade your Node.js app from version 16 to 22. In the process every dependencies must inspected for compatibility, code must be refactored and optimized wherever it's necessary. As a senior Node.js developer who has delivered many apps, I can handle this task and deliver it successfully. I'm ready to upgrade, test, optimize and document everything. I'm looking forward to hearing from you!!
$788 USD in 10 days
7.1
7.1

Hello, I can help migrate your production API from Node 16 to Node 22 by reviewing the dependency tree, replacing deprecated or removed packages, and fixing native module, ESM/CommonJS, and npm deployment issues until the repo installs and passes tests cleanly. I’ve handled major Node LTS upgrades for backend API services before, including dependency rewrites, CI pipeline fixes, Linux deployment issues, and performance-focused refactors where older async patterns and heavy modules were cleaned up. I’ll keep the changes practical and easy to review, with attention to stability in production and measurable improvements where the current code has clear hotspots. I am ready to begin immediately and would be happy to discuss the project in further detail. Thanks, Teo
$1,250 USD in 7 days
6.7
6.7

Hi there, I will migrate your API from Node 16 to Node 22 addressing native module rebuilds, ESM/CommonJS interoperability, and CI deployment constraints so tests pass under Node 22; I’ve handled multiple LTS jumps and native addon recompiles in production APIs. - Analyze full dependency tree, pin compatible packages and replace or port modules that fail to compile (including native addons) so npm install && npm test succeeds under Node 22 - Refactor identified hotspots (async I/O paths, sync-blocking calls, and heavy JSON parsing) for measurable performance gains and add Node 22-compatible patterns (optional: replace deprecated streams or Buffer usage) - Update CI pipeline config to run Node 22, add reproducible Dockerfile or .nvmrc and ensure clean install-and-run repository - Risk/quality-control: staged deployment with backup checkpoint and post-fix validation running full test suite Skills: ✅ Node.js ✅ native modules / N-API / C++ addons ✅ ESM/CommonJS migration ✅ CI/CD (GitHub Actions/GitLab CI) and Docker ✅ Performance tuning and async refactor Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start immediately; Is this already running on a live production server or should I work against a staging copy first? Best regards,
$1,200 USD in 5 days
6.7
6.7

If you're looking for a Node versioning expert who can decipher and rectify the tumultuous breaks in your current dependencies as a result of upgrading, then look no further. At MHTechFusion, we have successfully navigated similar hurdles in the past while managing major LTS jumps. Our deep understanding of native modules, ESM/CommonJS quirks, and NPM deployments equips us to tackle your project with nimbleness and efficiency. Not only do we solve direct issues but also use such upgrades to rearchitect where necessary. Given that you mentioned aiming for performance enhancements, this aligns perfectly with our modus operandi. As a multidisciplinary engineering team at MHTechFusion, a holistic approach to software is an inherent part of our culture. We would not only modernize your codebase making it compatible with Node 22, but rigorously refactor hotspots to bring tangible improvements in execution time. Moreover, deploying applications through typical CI pipelines leveraging AWS, Docker, Kubernetes or Heroku et al is something we do day-in-day-out. Your deliverable needn't be just an install-and-run repository; we take pride in offering documentation that allows for easy maintenance by others. I assure you that our overarching skills set across frontend web development using React and backend with Node.js makes us a perfect match for your API driven project as well. Choose us and let's give your API service, a modernized overhaul!
$1,500 USD in 45 days
6.8
6.8

Hi, Your Node 16 to Node 22 API upgrade is exactly the kind of backend modernization work I handle, especially when dependency changes require real migration rather than a simple version bump. I can review the full dependency tree, identify deprecated or incompatible packages, pin stable versions where appropriate, and replace or refactor modules that no longer compile under Node 22. I also have experience resolving native module build issues, ESM and CommonJS conflicts, npm install problems, CI failures, and runtime differences across major LTS upgrades. My approach would be to first create a safe upgrade branch, run the existing test suite, map breaking points, then migrate dependencies and refactor affected code step by step. After compatibility is stable, I will focus on performance hotspots, cleaner async patterns, faster execution paths, and measurable improvements where the codebase allows. You will receive a clean install-and-run repository that passes the existing tests under Node 22 and works smoothly in your CI pipeline. I would be grateful to work on this upgrade and will gladly accept your feedback throughout the process. Best, Justin
$1,125 USD in 7 days
6.3
6.3

Hi there, I’ve read the Node 16 to 22 migration challenge and I’m confident I can get you cleanly upgraded while keeping the API’s behavior intact. I will start by analyzing the current dependency tree, pin what still works, and manually migrate or replace anything that breaks under Node 22 so you don’t hit runtime surprises. I’ll refactor hotspots for better performance and cleaner code, aiming for measurable gains once the modernised stack is in place. I’m interested in this project, I have multiple similar migrations under my belt, and I’ll follow your CI/CD setup to ensure the repository installs and runs the test suite on Node 22. I’ll outline a concrete plan with a phased timeline, then deliver a clean install-and-run repo that passes tests on Node 22, with a clear post-migration verification step . Best regards,
$1,250 USD in 15 days
6.3
6.3

Hello, I understand you need a production Node.js API migrated from Node 16 to Node 22, including dependency resolution, removal of deprecated modules, and full compatibility fixes while maintaining CI stability and passing the existing test suite. I will begin by analyzing your current dependency graph to identify breaking changes, unsupported native modules, and ESM/CommonJS conflicts introduced between Node 16 and Node 22. I will systematically upgrade or replace incompatible packages, refactor problematic code paths, and ensure all modules compile cleanly under the new runtime without regressions. In addition, I will optimize performance hotspots during migration, improving execution efficiency where possible, and ensure the CI pipeline runs smoothly with a clean install-and-run setup. The final deliverable will be a fully modernized, stable API repository running on Node 22 with verified test pass status. You can also view my portfolio here: https://www.freelancer.com/u/Feriver Thanks, Asif
$1,500 USD in 14 days
6.3
6.3

Hi there, I’ve reviewed your Node.js project requirements and would love to help. With 5+ years of experience in backend and API development, I specialize in building fast, scalable, and secure applications using Node.js, Express, and MongoDB. I’ll start with a clear architecture plan, provide regular progress updates, and ensure the solution is well-tested, efficient, and production-ready. Let’s connect to discuss your project in detail — I’m ready to get started! Best, Bhargav Node.js Developer | Backend & API Expert
$750 USD in 7 days
5.6
5.6

Hello!, This is James from Hollywood. I carefully read your project description about migrating your API from Node 16 to Node 22, and I understand the importance of this upgrade for maintaining performance and security. With over 15 years of experience in software development, particularly with Node.js and backend systems, I am well-equipped to handle this transition smoothly. I have a solid track record of upgrading production APIs and ensuring all dependencies are compatible and optimized. Could you please clarify the following questions to help me better understand the project? 1. Are there specific dependencies or modules that you are concerned about during the migration? 2. What is your timeline for completing this upgrade, and do you have a staging environment set up for testing? To accomplish your project successfully, I propose a phased approach: 1. Assess current dependencies and identify potential issues. 2. Upgrade Node.js and test the core functionalities. 3. Resolve any compatibility issues and conduct comprehensive testing before deployment. I’ve successfully managed similar projects like an API for a financial platform and another for an e-commerce system, ensuring smooth transitions with minimal downtime. I am serious about delivering the best results and would love to discuss your project further!
$1,200 USD in 4 days
5.5
5.5

Hello, I have extensive experience upgrading production Node.js backends across multiple LTS generations, including migrations from Node 12/14/16 to Node 20+ for REST APIs, microservices, and high-traffic SaaS platforms. I’ve handled dependency replacement for deprecated native modules, resolved ESM/CommonJS compatibility issues, rebuilt CI pipelines, and optimized async workflows, caching, and database access to improve runtime performance and stability. For your API service, I will audit the full dependency tree, isolate incompatible packages, migrate or replace unsupported libraries, and refactor critical execution paths while preserving the existing API behavior and test coverage. The repository will be validated under Node 22 with reproducible installs, updated build scripts, and deployment-safe package management to ensure clean CI execution and long-term maintainability. Are you currently using npm, pnpm, or yarn in the deployment pipeline? Also, does the project rely on any native bindings such as node-gyp modules, sharp, bcrypt, or legacy database drivers that are known to be sensitive during Node upgrades? Best regards
$750 USD in 5 days
5.6
5.6

Hello, You need an expert to upgrade your Node 16 API to Node 22, resolve dependency issues, and improve performance. This aligns perfectly with my expertise. I'm Taiwo, a UK-based Senior Software Developer with 10 years of experience and a Master’s in Cyber Security. I've handled several major technology upgrades for companies like IBM, UK Government, BMW, and Sky. I understand the intricacies of dependency management, especially with Node.js. My approach involves: ⏺ Thoroughly analysing your current dependency tree. ⏺ Pinning compatible modules and replacing/migrating incompatible ones. ⏺ Refactoring code for performance gains. ⏺ Ensuring the codebase passes your existing test suite under Node 22. Relevant Projects: ⏺ OneKey - Integrating Commercial Units Feature - Mobile and admin portal API for an estate management company. ⏺ Equity Share – built backend functionality for a US real estate crowdfunding platform with a focus on secure, scalable application logic. I'll pay special attention to native modules, ESM/CommonJS compatibility, and NPM deployments during the migration. If you're looking for a reliable and efficient professional to tackle this upgrade, I'm ready to start immediately.
$1,125 USD in 12 days
5.4
5.4

I would start by auditing the current Node 16 dependency tree, lockfile, native modules, build scripts, and CI configuration to identify exactly what breaks under Node 22 before making changes. The upgrade would include carefully pinning compatible packages, replacing deprecated or removed dependencies, resolving ESM/CommonJS issues, and refactoring outdated code paths that affect stability or performance. I would keep the API behavior consistent while modernizing the runtime, improving install reliability, cleaning up package scripts, and making sure the repository runs cleanly in a Node 22 environment. For performance, I would profile the key API paths, optimize obvious bottlenecks, and compare results before and after the upgrade so improvements are measurable rather than assumed. The final delivery would be a clean repository with updated dependencies, passing tests, working CI, documented upgrade notes, and a clear summary of any replaced packages or code changes.
$750 USD in 10 days
5.5
5.5

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