I would ask the question the other way around. Java is so stable and mature that for every problem, there exists a solid and well maintained framework or library which solves your problem. For me the JS world feels like the wild west sometimes. The language itself is so bare that everything needs a micro package which some random person made and can just decide to take it down or it gets hijacked, things like that. It feels like the entire ecosystem is only held together by tape and glue. This is a backender's perspective on it. Is the Java ecosystem perfect? Of course not, but it feels a lot safer and mature to me. Answer from DJDavio on reddit.com
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Reddit
reddit.com โ€บ r/microservices โ€บ is there a trend to move from java to nodejs for microservices in cloud?
r/microservices on Reddit: is there a trend to move from Java to NodeJS for microservices in cloud?
July 10, 2021 -

is there a trend to move from Java to NodeJS? I have heard from many people that Java is too heavy for applications running in cloud. While NodeJS/Javascript is easier for Lambda, and microservices overall. Also, AWS tends to move towards Javascript/NodeJS in recent years.

What do you use to develop microservices Java or NodeJS/Javascript?

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Reddit
reddit.com โ€บ r/cscareerquestions โ€บ advantages/disadvantages of java vs nodejs for back-end web development, apis, microservices, etc
r/cscareerquestions on Reddit: Advantages/Disadvantages of Java Vs NodeJS for Back-End Web Development, APIs, Microservices, Etc
March 25, 2021 -

Anyone here from a NodeJS and Java (as in Spring/Jax-Rs) backgrounds who can share their opinions of developing RESTful APIs/microservices/cloud applications using Java frameworks compared to equivalent in NodeJS? What advantages would one have developing web ack-ends and microservice based applications in Java vs NodeJS and vice versa?

I am a .Net developer but looking to dive into a second stack mostly to make myself more marketable. I am diving into the cloud world and currently studying to acquire various certs in AWS and eventually may dive into Azure and GCP.

My goal may be to go into DevOps but I am open to other area such as cloud development, Solutions Architect/Systems Architect type roles, etc.

I do want to keep up my software skills to a degree for developing applications for various Cloud services. However, I also have been interested in looking at other avenues for developing microservices, RESTful APIs and planning on learning gRPC and GraphQL.

Even though I know all this is possible with C# and .Net and I do love C#/.Net framework, I know it limits me with the number of jobs available for me. I know learning Java eco-system can be too time consuming at htis point and NodeJs looks like a more real possibility, especially since I have a good knowledge and some experience with Javascript/Typescript.

However, I just like to know people's feelings on utilizing Java and associated web frameworks versus NodeJs. I understand next to Python, Java does dominate the market in web applications. Although , I hear this can be changing and Node's popularity is growing fast.

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Reddit
reddit.com โ€บ r/java โ€บ my team is considering writing a new set of microservices in java or node.js/typescript. what are the reasons to pick java?
r/java on Reddit: My team is considering writing a new set of microservices in Java or node.js/Typescript. What are the reasons to pick Java?
August 29, 2017 -

We are currently writing a set of 5-7 microservices in Java or node.js (Typescript). One team has already begun writing their services in node. I am trying to argue for a polyglot approach, but I need to write a proposal that justifies writing some of the services in Java over all of them in node.js.

I've already started to write the proposal, but I would appreciate any reasons that you might think of.

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Reddit
reddit.com โ€บ r/java โ€บ java vs nodejs
r/java on Reddit: Java vs NodeJS
January 14, 2023 -

Hello everyone!

What Are The advantage and disadvantages of using Java(springboot) instead of NodeJS as the back end of my web application.

Thanks in advance.

Top answer
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Few off the top of my head. NodeJS should only be picked if your load is almost entirely IO bound. You will see very few of the benefits otherwise. NodeJs codebases tend to scale smoothly until under full load while Java codebases front load a bit more. When under a full load it will depend on what sort of load to determine which one is better/faster. In general nodejs codebases perform better in horizontal scaling situations when you are running many small boxes while Spring boot/Java can better take advantage of vertical scalability. If you have one or two large servers running your application Java may outperform nodejs as it can take advantage of multiple cores when under load. Java is compiled and statically typed which eliminates several categories of bugs and you never have to worry about invalid code. NodeJS codebases require more written tests for the same guarantees and the inclusion of typescript. At the same time if your application does little with the data passing through its system it can feel like types are a burden instead of a boon. Java's tooling and deployment is a bit more complicated than NodeJs. Its changed a bunch over the years and it can be daunting to the inexperienced. Spring boot makes this easy if you follow their doc closely and don't try to figure it out on your own. Spring boot is a collection of libraries primarily centered around spring framework and bring in concepts you may not be familiar with. It would be more accurate to compare it to something like NestJS than NodeJS. You can pick a simpler Java framework to get started as there are many that can compare similarly to something like express in NodeJS. In my opinion, Java's standard API is easier to work with than NodeJS for a number of tasks. You may not encounter this in a simple application though. Spring boot codebases have certain common conventions on organizing code. This is useful to the experienced but can be overwhelming to new developers. tldr; If you are building a small web application that primarily talks to remote services like a DB use nodejs and you will get up and running faster. For larger apps or where performance is critical it would highly depend on what your application is doing for the choice to matter.
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If you're building a prototype or toy, node is quick to get started with. If you will be running your application for a while and need to actually support it, Java. Source: 15 years or building large scale Java web services and 8 years with nodejs web services.
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SayoNetech
sayonetech.com โ€บ blog โ€บ nodejs-vs-java-spring-boot-microservice
Node.js vs Java spring boot for microservice
June 8, 2021 - Spring Boot Java is an open-source framework (Java-based) used for the creation of a microservice. Node.js is a platform that is built on Chromeโ€™s JavaScript runtime and is best used for building fast and scalable networking applications easily.
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Reddit
reddit.com โ€บ r/node โ€บ node.js or java for backend? seeking advice for fullstack transition!
r/node on Reddit: Node.js or Java for Backend? Seeking Advice for Fullstack Transition!
August 30, 2024 -

Hey everyone,

I could really use some advice. I've been working as a frontend developer for almost 2 years now, mainly with React, React Native, and Redux. I want to level up and become a fullstack developer, so I'm diving into backend development.

Initially, I thought of learning Node.js since it uses JavaScript, which Iโ€™m already comfortable with. But one of my seniors suggested I should consider Java because itโ€™s more powerful and could lead to better job opportunities.

Here's where Iโ€™m stuck:

  1. Familiarity: I know JavaScript pretty well, so picking up Node.js might be easier and faster for me.

  2. Learning Curve: Iโ€™m a bit of a slow learner, and Java would be completely new territory, meaning Iโ€™d have to start from scratch.

  3. Career Prospects: While Node.js seems like the easier path, Java supposedly offers more robust capabilities and better job prospects.

For those of you who have experience with both or have made the transition from frontend to fullstack, what would you advise? Should I go with Node.js for a smoother learning experience, or should I tackle Java for potentially better career opportunities?

Thanks a ton for your help!

Top answer
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Itโ€™s more about the concepts. Are you familiar with (or do you want to learn) how Spring works? Learning Java is not hard. Itโ€™s dot notation, like JS, but itโ€™s compiled, thereโ€™s strict typing, and much more heavily focused around OOP. How well do you know OOP? How familiar are you with abstraction? If I were you, Iโ€™d stick with something like Nest.JS and focus on learning proper typescript, and then move into Java. If youโ€™re not good with key programming principles, then Java will be brutally hard. If youโ€™re familiar with stuff like OOP, inheritance, polymorphism, abstraction, singletons, factory methods, et al., then Java might be a good challenge! Also, consider time. Do you have the time to learn Java? Or would that time be better spent on learning a solid TS framework, like Nest.JS? Iโ€™d say learn TypeScript properly, and focus on Nest.JS (or some other framework), and then learn Java and port your api to it when you have the time! Good luck either way, bud! [EDIT] career wise, donโ€™t worry. PLENTY of node jobs out there! But be sure to stand out by knowing programming principles, not just node. Iโ€™m a hiring manager. I literally donโ€™t give a fuck if you know how to make an express app. I care that you know how to stream a file, what buffers are, how to find performance issues, database normalization, et al. If you know that, learning a new language becomes a lot easier!
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You'll pick the concepts faster in the language you alresdy know. Afterwards, you can choose to transition to Java. More Java jobs but at the end of the day, if you know and understand the concepts very well, it doesn't matter what you choose
Find elsewhere
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TechMagic
techmagic.co โ€บ blog โ€บ node-js-vs-java-what-to-choose
Node.js vs Java โ€“ What to Choose? โ€” TechMagic
Node.js continuously introduces ... programming languages. Meanwhile, Java embraces modern development practices, such as cloud computing and microservices architecture, to stay competitive....
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Reddit
reddit.com โ€บ r/cscareerquestions โ€บ is node js more future proof than java?
r/cscareerquestions on Reddit: Is Node JS more future proof than Java?
November 7, 2020 -

I have just graduated from college. I'm trying to decide my stack from so much time now and still have not come up with an answer as half of the answers say "do Node" and half of them saying "do Java". I'm less familiar with web development languages than with core programming languages so wanted to know that if Java will do though I have started learning Node a bit. Also I wanted to know is it common to switch the stack when moving from one job to another and still don't have any major decrease in the salary? Is it like backend software engineers don't label themselves like "Java Developers" or "Node JS developers" and change stack if they need to? I'm asking this question a guy wrote that as an answer to a similar question. I don't want to be in a situation ever in my life in which the company in which I want to work works on a different language rather than the one in which I have like 10 years of experience and then I get paid like a junior.

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Existek
existek.com โ€บ blog โ€บ node-js-vs-java-enterprise-web-applications-development
Node.js vs Java in Enterprise Web App Development - Existek Blog
May 10, 2024 - It initially structures the app with microservices, whereas Java EE mainly focuses on the delivery of a monolithic web application. Java applications that can be scaled both vertically and horizontally in comparison to horizontal scalability ...
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InventorSoft
inventorsoft.co โ€บ home โ€บ blog โ€บ node.js vs. java - which one to choose in 2023? โ€“ inventorsoft
Node.js vs. Java - Which One to Choose in 2023?
February 7, 2023 - Node.js is compatible with microservices architecture. Node.js is efficient and allows developers to develop and deploy microservices. Node.js is often used as the runtime environment for microservices written in JavaScript, Python, and Ruby.
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Coderanch
coderanch.com โ€บ t โ€บ 734803 โ€บ languages โ€บ node-Java-Microservices-apps
Is node really better than Java for Microservices apps? (Server-Side JavaScript and NodeJS forum at Coderanch)
And seems like apps like low in memory consumption and giving the same features compare to others is booming. So I think node js is the language which comes as best in those parameters and also it can provide the same features by consuming less memory compare to java.
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Simform
simform.com โ€บ home โ€บ the simform blog โ€บ comparing nodejs vs java: your backend tech stacks explained
Comparing Nodejs vs Java: Your Backend Tech Stacks Explained
January 31, 2025 - Both Nodejs and Microservices build smaller parts of services and code modules. Nodejs is suitable for developing scalable apps as itโ€™s efficient at handling multiple concurrent requests.
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Reddit
reddit.com โ€บ r/springboot โ€บ spring boot or node js
r/SpringBoot on Reddit: Spring Boot or Node JS
September 20, 2024 -

I am trying to create a Backend for my social media based application. I am mostly going to build a APIโ€™s that communicates with MongoDB. For stream like chat options, i prefer to go with Firebase Firestore which is very good at streaming. I want my backend to be scalable and reliable and also easy to build. I know core Java already.

Which one should I go with Spring Boot or NodeJS

I also wanted to think in pricing point of view. People say computing in the spring boot application will be more so it will cost you more, but in NodeJS it will cost less and io writes are fast.

Im very confused about it

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Nevinainfotech
nevinainfotech.com โ€บ blog โ€บ nodejs-java-backend-technology
Node.js vs Java 2024: Which one to consider for the backend?
January 20, 2026 - It is an ideologue for building discussion applications, combined tools, and realistic analytic platforms. Node.js is also well-drawn for developing lightweight APIs and microservices frameworks. When it comes to developing app stability from Node.js vs Java that have distinct differences.
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Medium
medium.com โ€บ @kanhaaggarwal โ€บ stop-using-one-language-for-everything-go-java-and-node-js-each-have-a-place-in-microservices-3ae74fd1e22b
Stop Using One Language for Everything: Go, Java, and Node.js Each Have a Place in Microservices | by Chronicles | Medium
May 20, 2025 - Monolithic thinking still haunts modern microservices development. Many teams default to using a single language across their entire service ecosystem โ€” usually out of habit, not strategy. But as systems scale, this one-size-fits-all approach becomes a bottleneck. ... Go, Java, and Node.js each solve different problems โ€” and each excels under different constraints.
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Medium
medium.com โ€บ @codenova โ€บ mastering-javascript-for-backend-development-node-js-vs-java-17fcea3aa69b
Mastering JavaScript for Backend Development: Node.js vs Java | by Codenova | Medium
October 16, 2024 - This gives Java an advantage for long-running processes. Scalability is a critical factor in backend development, especially for applications with fluctuating workloads. Horizontal Scaling: Node.js can be easily scaled horizontally by running multiple instances across different servers. It is particularly effective in microservices architectures where services can be scaled independently.