Website Development

Backend Frameworks
Top 10 Web Development Frameworks in 2022
Top 10 Web Development Frameworks in 2022 800 400 Blog

The backend frameworks are the collection of server-side programming languages that are used in developing the back-end structure of a website and application.

The demand for web development has been growing, and with it, so has the number of available frameworks. Here’s a list of some of the best back-end frameworks to help you choose one that fits your needs:

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What is Node.js?
What is Node.js? 800 400 Blog

What is Node.js used for?

The very first thing you have to know about NodeJS is that it’s not a framework that is javaScript.

NodeJS is a server-side runtime environment this is certainly built upon programming this is certainly event-driven that allows non-blocking I/O capabilities.

As a result of this excellent I/O model, building I/O-heavy and internet is certainly data-heavy and becomes very fast and effortless using NodeJS.

Aside from this, the capability of NodeJS to make use of JavaScript on both front-end along with back-end has also opened up many avenues being new web application development.

How Is It Different From Other JavaScript Frameworks?

Though there’s no distinction between NodeJS as well as other frameworks which can be javaScript terms of the program coding language made use of, why is NodeJS distinctive from all of those other JavaScript frameworks is its various sets of APIs.

For instance, unlike various other frameworks, javaScript NodeJS provides many APIs for backend development such as HTTP requests, channels, help for file systems, and son or daughter processes to name just a couple.

Also, since NodeJS utilizes JavaScript on both front-end as well as the end that is straight back it significantly advances the development speed.

To put it simply, NodeJS development permits companies and businesses to save lots more as NodeJS holds the ability to handle an extent that is the same with less horsepower.

Node JS Use Cases: When Is It Worth Using?

NodeJS, as stated before, provides a boost this is certainly great for the productivity of one’s group since it utilizes similar program writing language from the front-end and back-end.

The development process becomes even faster, more efficient, and cross-functional, which eventually contributes to lower development prices as a result.

However, it’s also worth mentioning that NodeJS is best suited for only a particular kind of web program.

Let’s discuss in detail Node this is certainly various JS instances to understand when is it worthwhile considering for web application development.

1 – When You’re Building Streaming Web Apps

Because of the Native Stream API, NodeJS can be an option that is excellent for establishing online streaming internet apps.

In inclusion, NodeJS also has a screen that is integral to readable streams that may be easily and effortlessly processed and administered.

These stream cases are nothing but Unix pipes which makes it possible to send parts of the application’s rule this is certainly executable to the local system while also maintaining a steady connection for brand new components to download as and when required.

Because of this, streams in NodeJS don’t require caching and saving temporary information as it offers an open link with the stream app’s data from the host to the local system.

The Native Stream API of NodeJS permits downloading only specific parts of the web application initially together with the remaining components installed in the history when required in layman’s terms.

2 – When You’re Building Real-time Collaboration Tools

Real-time collaboration resources are fundamentally Software solutions widely used for project management, co-browsing, sound and video clip conferencing, collaborative document modifying, and many other things.

In these solutions which are software, lots of I/O needs and activities occur concurrently. As an example, in a project administration solution, multiple users can compose remarks, upgrade status, and attach media to a project this is certainly certain.

Now, since NodeJS are capable of i/O that is heavy efficiently due to its WebSockets and Event API, NodeJS has turned into a preferred option among designers for building such real-time collaboration solutions.

Trello, as an example, adopted NodeJS for the event-driven design this is certainly non-blocking and straight away upgrades its collaborative environment.

3 – When You’re Building Complex, Single-Page Programs

Single-Page programs have grown to be a method this is certainly common.

In SPAs, the complete application is fit for a passing fancy page to present a desktop knowledge that is app-like.

NodeJS is just a fit that is perfect for building SPAs as it can effortlessly handle asynchronous calls and heavy I/O businesses.

In inclusion, NodeJS also works well with data-driven applications which can be single-page in which the server acts as the backend to transfer data to the customer, even though the client-side does all of the HTML renderings.

Finally, Since NodeJS and web browsers use the language that is the same javascript), the quantity of time for framework switching gets significantly paid down and developers may also utilize the same language structures and techniques in both the back-end and front-end.

This fundamentally leads to better maintainability and a quicker development period of your single-page application.

4 – When You’re Building Real-Time Chat Programs

These days while you might know, real-time chats are widely used everywhere on the net. In reality, they’ve sort of become a prerequisite, especially for commercial internet sites and products and services that are digital.

The news headlines this is certainly great, that NodeJS has most of the basic functionalities for building real-time chat apps. Node’s Event API enables designers to implement server-side occasions and press notifications, which are trusted generally in most chats and can be real-time.

In addition, the WebSockets in NodeJS also facilitate a change this is certainly a two-way an open connection, which is ideal for real-time talk application development.

For instance, you can put in WebSockets libraries like or WebSocket-node to easily deploy real-time talk functionality.

In Particularly, all you need to do is install the library on both server-side and client and create broadcasters and event emitters to push emails. The best component is, that this whole setup can be carried out with only a few lines of the signal.

5 – Whenever You’re Building Microservices Architecture

Microservices Architecture is a procedure for having a web application as a set of small, independent solutions for which each service plays a task that is unique to the company logic.

In the last few years, microservices design is now popular, specifically after the emergence of Amazon, Facebook, and Netflix.

Within this kind of web application, microservices generally communicate through REST/HTTP protocol with JSON information structure.

NodeJS is the technology this is certainly perfect to build such a microservices structure because NodeJS allows you to mount various cases of hosts for specific microservices and design appropriate routing details for all of them.

Furthermore, the lightweight character can considerably boost the scalability, maintainability, and efficiency of a web application.

These advantages had been very first leveraged by PayPal in 2013. PayPal utilized NodeJS to modularize its app bunch and split the development process into many microservices.

The consequence of NodeJS adoption helped the business to boost overall performance and significantly reduce its codebase.


NodeJS has become the number one choice among developers as well as companies for building modern web applications.

However, you should not use NodeJS if you’re developing a CPU-intensive web application as it may cause unresponsiveness due to its single-threaded nature.

On the other hand, NodeJS is the best choice if your web app involves dealing with heavy client-side rendering, frequent shuffling of data, multiple concurrent requests, and things alike.

That being said, if you’re planning to use NodeJS in your web application, hire Node JS Developer from Credencys to fully utilize the capabilities of Node JS.

What is Non-Fungible Token (NFT)?
What is Non-Fungible Token (NFT)? 850 400 Blog

Non-Fungible Token aka the NFTs is digital assets or a type of digital certificate for owning goods or an asset that represents a great variety of intangible and tangible items such as paintings, virtual real estate, postcards, videos, and so on. NFTs cannot be replicated or equated with a similar asset, because every nonfungible token asset is unique on its own. You can read more about the development and cost of the NFT marketplace here.

If we place this example in place of NFT, then the game ticket (which is an NFT) cannot be replaced or traded with any ticket, as every baseball game ticket has its own unique identity. The same is the case with NFT, where you cannot just exchange or trade NFT tokens with similar value tokens, as each token is different from one another and has its uniqueness and rarity.

What is an NFT and how does it work?

NFTs are individual tokens with valuable information stored in them. Because they hold a value primarily set by the market and demand, they can be bought and sold just like other physical types of art. NFTs’ unique data makes it easy to verify and validate their ownership and the transfer of tokens between owners.

Who uses NFTs?

NFTs are having a moment among artists, gamers, and brands across all kinds of sectors. It seems every day brings a new player to the NFT marketplace. For artists, stepping into the NFT space adds another possibility for selling art, and provides fans with a way to support it.

Types Of NFTs

1. Digital collectibles have seen some of the most high-profile sales.
2. NFTs can be of many kinds — images, videos, music, text, social media posts, etc. All these can be bought and sold as NFTs.
3. Sports fans can collect and trade NFTs relating to a popular player or favorite team.
4. Items in virtual world environments — patches of land, digital clothes, etc. — can also be traded as NFTs.

What is the importance of NFTs?

NFTs can be used to purchase and sell possession of physical properties in a digital marketplace because they are a digital archive of a real-world asset. This has the power to launch the NFT revolution in rare and valuable item buying and sale.

Advantages and Benefits of Non-Fungible Tokens-

1- Limited- The value of NFTs comes from their scarcity. NFT developers can create an infinite number of non-fungible tokens, and they often change the tokens to maximize interest.
2- Indivisible- Most NFTs are indivisible into smaller units. If you pay the full price of a digital item, you will not be entitled to access it.
3- Unique- NFTs have a strong information tab that explains their uniqueness. This information is completely safe and accurate.

Benefits of Non-Fungible Token-

Digital interactions have been transformed by NFTs. Let’s talk about some of the advantages of this cryptocurrency.

1- Easily Transferable: NFTs are purchased and sold in unique markets. The use of NFTs is based on their uniqueness.
2- Trustworthy: Non-fungible tokens are used in blockchain technologies. As a result, you should be certain that your NFT is correct since counterfeiting is difficult for a decentralized and permanent record.
3- Maintain Ownership Rights: This refers to a network of shared platforms the size of an NFT, where no buyer can change the data later.

What is NFT crypto?
NFTs, or non-fungible tokens, are non-interchangeable digital assets stored on a blockchain. They usually take the form of a picture, video, or audio file in a digital format. NFTs can be sold, traded, or leased like any real-world asset

The Future of NFT
Non-fungible tokens have disrupted the digital world and industries from art to gaming, ticketing to blockchain domain names. Find out more with us.

As the boom of unique collectibles on social media platforms inevitably fades, the second wave of NFT adoption – already in its infancy – will show that the technology’s universal adaptability can have a significant impact on all of our lives.

1. Gaming
2. Ticketing and Transactions
3. Changing the music streaming framework
4. Blockchain Domain Names
5. Real-World Assets

How would you describe your coding skills in an interview?
How would you describe your coding skills in an interview? 850 400 Blog

How To Prepare for Programming and Coding Interviews? Topics and Skills

There is no doubt cracking the Coding interviews of top tech companies like Google, Microsoft, and Amazon is very hard, but you can still crack it by carefully planning and preparing the essential skills which matter most like Data structures and Algorithms, System Design, Multithreading and Concurrency, SQL and Database design, and of course, problem-solving skills.

Being an author of Java and a programming blog, I often receive queries about how to prepare for coding interviews? How to pass Google or Microsoft Software Developer interviews? Or how can I get a software development job on Amazon or Facebook?

After answering many of my readers one by one on Facebook and LinkedIn, I thought to put together a list of essential topics for coding interviews.

This list will give a good head-start for your preparation for any tech company interview like Google and Amazon. However, even if you are not targeting Google and just want a Software developer job, you can still prepare these topics.

In fact, preparing for tech giants like Google, Amazon, Apple, and Facebook means you are miles ahead of other candidates, and you will most likely secure many job offers from smaller firms, startups, and investment banks.

That’s why I suggest aiming higher because even if you don’t get what you want, you will still get job offers that are desirable by many programmers.

Another critical thing to note is that different interviews need different skills. For example, when you go for a Java developer interview, you are bound to know Java. Similarly, for a Python developer interview, it’s expected you to know Python and some popular Python frameworks like Django and Flask.

For a Web developer, HTML, CSS, and JavaScript are core skills, and you will be grilled on those, apart from modern web development frameworks like Angular, React, and Vue.js, with a bit of node.js as well.

I’ll not touch on that topic but I’ll share essential skills that are required to pass all of those interviews. They are also known as core programming skills, and it’s expected from every software developer to know that.

How To Prepare for Coding and Programming Interviews

Anyway, without wasting any more of your time, here is my list of topics you can prepare to boost your chances on Google, Amazon, and Microsoft programming job Interviews.

1. System Design

This is another crucial topic you need to prepare well for your programming job interviews, especially at big tech companies like Google, Microsoft, Amazon, and Facebook. You need to have some ideas about how to design your solution from architecture to coding.

System design is actually very vast. At a high level, it covers things like software architecture, I mean the advantage between monolithic and microservice architecture and choosing between a NoSQL and SQL database.

Does it cover things like how we will design an application that can handle 10000 concurrent users? And includes things like scalability.

At a low level, it covers Object-Oriented Programming and Design, which talks about designing your classes and their relationships, following good coding practices, and software design principles like SOLID.

Because of this, many candidates struggle to answer system design questions, and if you want to succeed, you must put particular emphasis on this skill. If you need a resource, I recommend you to check the System Design Interview courses, which are prepared by people who served as hiring managers for those tech companies and walk you through common system design interview questions.

2. Data Structure

As a programmer, it’s Ok if you cannot write web apps using Django or React, but it’s Not Ok if you don’t know how a hash table works and when to use a list over an array? And, what advantages B-Tree offer over an array? Data Structure and Algorithms are the core of computer science and programming, and it’s expected for every software developer to have a solid knowledge of fundamental data structure.

It’s imperative to have a good understanding of data structure for writing a robust, performant application that your users will appreciate.

Imagine, if Facebook or Google takes 1 minute to log you in, you will never go there, forget how important they are. Performance is critical, and unless you understand how your program is working and how your data is stored, you will not go anywhere.

In technical interviews, you will be asked to optimize your solution for time and space. You can’t do that unless you have a solid understanding of how your code works and how data is stored and accessed.

This is probably the most important topic for coding interviews and you should prepare it well. At a bare minimum, you should know about the array, linked list, binary trees, binary search tree, self-balanced trees like AVL tree, hash table(or map or dictionaries as known in Java and Python) stack, queue, and graph.

You should understand how to store and access elements from these data structures and the computing cost involved. You should also have a comparative analysis of when to use a particular data structure like for a faster search array, and the hash table is better. Still, for faster addition and deletion, a linked list will outperform an array.

If you need a resource to get up to speed, I suggest you pick a data structure course where examples are shown in the language you are most comfortable with.

3. Algorithms

While it’s important to know the essential data structure like an array, linked list, and trees, it’s equally important to learn how to work with those data structures. If you don’t know the difference between linear search and binary search algorithms, and what it means to run in O(log n) as opposed to O(n^2), you need to spend some time learning algorithms.

This can often be the difference between a fine-tuned application and a slow, crappy process that hangs more than it works. At a bare minimum, you should know about sorting algorithms like quicksort, mergesort, heapsort, etc. searching algorithms like binary search, and some graph algorithms like fastest route-finding algorithms, which are the base of many deliveries and taxi-hailing apps like Uber, Grab, and Ola.

You should also understand how the library methods you are using for sorting an array work, which algorithm it uses internally, and when a different algorithm would do a better job.

I strongly suggest you prepare for this topic in depth. If you need a resource, I would recommend the Grokking Algorithms book by Aditya Bhargava and Algorithms course on Coursera.

4. Multithreading and Concurrency

Concurrency is one of the most desired skills by employers, and also one of the most advanced topics brought up in interviews. Because it shows your ability to design a program that efficiently uses resources but at the same time it’s a very tricky topic to master and that’s why interviewers love it.

Concurrency can also be used to gauge your expertise and technical depth and is often used as a key deciding factor in your overall hiring level. Whether you are just entering your career or are looking to switch jobs, it never hurts to dedicate some time to mastering concurrency.

At a bare minimum, you should know about threads, processes, shared memory, monitors, locks, critical section, and deferred callbacks. Having a good knowledge of how to avoid race conditions and deadlock can be even better.

Practicing classical concurrency interview questions like Producer-Consumer, Dining Philosopher, and others can also teach you a lot about concurrency and multithreading and give you the confidence to visualize how code and data work when multiple threads run in parallel.

If you have an interviewing coming up, then I highly suggest you double down on concurrency. This is because I know it can be one of the most challenging topics brought up during most of the interviews, even for experienced developers. However, gaining a mastering concurrency will put you at a considerable advantage over other candidates.

5. SQL and Database Design

As a software developer, working with a relational database is a critical skill that you’ll need, and it will stick with you no matter where you are in your career.

Every company from small to large uses a DBMS, so it’s likely that you will come across different data models, types so databases (NoSQL and SQL), and dependencies on various companies.

Knowing how to structure your data within a DBMS is critical. Should you use an entity-relationship (ER), model? A hierarchical model? A three-schema architecture?

The choices can be intimidating, but it’s good to know about the different ways to structure your data so that when you switch database vendors like from Oracle to SQL Server or PostgreSQL, you can plugin with minimal hand-coding.

As a programmer, you should also know about SQL, not just the syntax but also how the database actually runs your query and how joins are executed, how indexes are used, and the difference between table scan, index scan, and index seek. These details are not just important from the coding interview perspective but also from day-to-day jobs.

I suggest you go through with Database Design Fundamentals for Software Engineers courses, where you will learn about the different concepts and techniques you can use to structure your data and explore why you should use particular approaches for certain problems.

You will also be exposed to techniques like normalization, which help to increase the efficiency o the database and avoid duplication. I also suggest Using The Index Luke book to better understand how SQL query works in general.

6. AWS, Docker, and Kubernetes

While these five are definitely must-have skills for coding interviews, employers are nowadays also looking for modern tech skills like AWS, Docker, and Kubernetes, which makes them important topics for technical interviews.

Since cloud computing is the next big thing and this decade of software development will be cloud-native, it’s better for a software developer to know about Cloud and modern deployment tools like Docker and Kubernetes.

This is also important if you want to stay ahead of the curve and give a reason to your employer to hire you than the next candidate in line. For AWS and Cloud, one more thing you can do is to get a certification, not because you can’t get a job without certification but to learn better and get recognition for your skill.

Docker is a container, which allows you to run your application as a whole, along with all the dependencies. This makes both development and deployment easier, particularly for Microservices. Since the container makes cloud deployment more manageable, they are also easier for the manager to scale up and down.

Kubernetes is a container orchestration tool, which means it can use manager containers at scale. It’s easy to deploy and manage a few boxes, but when you have to deploy 100s of containers for your application for a promotion event like Amazon prime Sale and then need to take it down once traffic returns to normalcy is not easy. Kubernetes can do that for you and provide automation and peace of mind.

While both Docker and Kubernetes are not mandatory skills for a programmer but definitely essential from the Job perspective. I recommend every Software developer or aspiring programmer to learn Docker and Kubernetes.

That’s all about some of the most important skills and topics you can prepare to crack the coding interview of companies like Google, Microsoft, Apple, Facebook, and Amazon.

Thanks for reading this article so far. If you find these *Coding interview skills and topics*useful, then please share them with your friends and colleagues. If you have any questions or feedback, then please drop a note.

Hire Remote Developers
Process To Hire Remote Developers For Web & Mobile Development Projects
Process To Hire Remote Developers For Web & Mobile Development Projects 850 400 Blog

Steps To Hire Remote Developers For Your Web & Mobile App Development 

Safety is on priority, In today’s COVID-19 pandemic scenario everyone is facing health and humanitarian crises. Most companies have adapted to the situation to safeguard their health and find new ways to make sure business & financial continuity. We have to change or reimagine our working culture. In the global marking “Remote Work” is now more EMERGING

Most companies used to offer the ability to work from home as a perk, it has now become the norm for most businesses. By 2025, an estimated 70% of the workforce will be working remotely at least five days a month. While 2020 may be considered the year of remote work, it is just the beginning as we see the trend continuing in 2021.

Hiring remote developers is one such way to ensure continuous development, scalability, and better business growth.

If you have plans to develop or launch a web & mobile app, it is important to hire dedicated remote developers. Highly skilled and professional developers play an important role in the success of your project.

What are the Advantages to Hire Remote Developers for Your Project?

Continuous Development

Offshore dedicated expert development teams work in different time zones, giving your project or business continuous and much-needed development support when it is required. This ensures that you have a quicker time getting a response from the market. While it might not be possible to deploy an in-house team that works fixed time or round-the-clock, It’s possible to hire remote developers offering continuous development support, integration, maintenance/testing, and strategic support related to deployment. Regular meetings & discussions with remote teams with overlapping schedules will help meet development and instantly solve the technical glitches or bugs.

Scalability Boost

Hiring remote developers provides quick scalability to businesses with relatively very low risks and overhead costs. With remote developers, you can hire experts with a specific background in niche technologies to bridge skills deficits.

A highly dedicated team of developers can manage a suite of tasks ranging from web or mobile app development, custom web development, theme customization/development, plugin/extension development, or a new native or hybrid mobile app.

Access Global Talent

A dedicated development team involved agile workability to learning new technologies in the tech world and constantly upgrading skills to meet various project needs. The dedicated remote team also solves these problems by adopting change and allowing the creation and implementation of innovative latest training programs or tutorials.

Whenever you hire remote web or mobile app developers, you can multiply business productivity with access to skilled talent and re-align resources to activities related to continuous revenue generation.

Process & Steps of Hiring an Offshore Development Team for Your Project

Web or Mobile App Project Requirements

You should have proper project requirements. It’s clear to identify the right specific talent or expertise for your project. The most important step is to share accurate information and flow about the project, features, specifications, and level of expertise, and to attract remote developers.

Remote Developer Portfolio

Should evaluate the ratio of completed projects, work feedback, and platforms. Also, try to understand their roles & responsibility in the development process.

The role was about senior developers or it was all about completing the project single-handedly, answers to these questions will let you know the depth of the experience. Equally most important is to know about domain niche expertise and the ability to work on complex projects.


During your first round of interviews with a remote developer, know the work culture and expertise values. This is a crucial standard that is lead to successful remote team players. It is the values, passion for work, and acumen that will make a dedicated remote team of developers a strength.

Questions for a remote developer:

  1. Do you have any experience in a remote position?
  2. What challenges are you facing? What wins – big or small did you have previous projects?
  3. Familiarity with project management tools, calendars, and task management apps?
  4. What is your strategy to overcome problems in web or mobile app development projects?
  5. What skill would you like to develop or improve?

Technical Screening / Test

When you are hiring remote resources for a technical project, it is very challenging to conduct a technical round of interviews to evaluate a candidate’s technical knowledge. Some Technical assessment tools help you to save time and money by selecting the most suitable candidates. You can assign a trial phase project to check the coding, problem-solving, analytical, and logical thinking skills of developers.

How To Enhance Remote Developer Productivity?

  • Create daily task plans and schedules of its priority.
  • Use automation tools & Technologies to simplify processes and real-time collaboration
  • Use Project Collaboration (Management) tools to improve communication & streamline workflow.
  • Strike the right balance between work and life
  • Increase information and feedback sharing to minimize bugs.

Project & Data Security

  • Sign an NDA with your remote development team to protect business information.
  • Set up 2-factor authentication systems, as well as virtual private networks.
  • Establish a proper security infrastructure to minimize security breaches.
  • Set expectations to ensure that remote developers maintain security standards.

Why Hire Remote Developers From Lemosys?

Lemosys Infotech is an ISO Certified Company having their operations in India and United States, a company was formed in 2007 to be the highest quality software development company in the world for excellent services and delivering standard value to customers, employees, and our associates. Lemosys Infotech the best IT Company in Asia. Our company has reached the best world-class practice in the field of web and mobile applications services. You can hire our expert designer and developer team.

Web designing and development being the main company activity, we are also involved in web application development. We provide a range of scripts for launching e-commerce sites and shopping carts which include Group buying, Deal aggregator, Micro job site, and online bidding.

We are especially engaged in mobile application development on various platforms like iPhone/iPad, Android, PhoneGap, PhoneGap, Ionic, Worklife, and Xamarin with field expertise in cross-platform hybrid mobile app development.

We provide Digital Internet Marketing services that include SEO and SEM. Our internet marketing strategy is one of the best methods or White Hat Technique according to Google Algorithms. We used to get the desired results in various SERPs. Our SEO expert analyzes the lead generation process in such a way that the user can get advertised on mobile/iPad/Internet in effective ways.

Provide an array of solutions for all industry verticals including enterprises, healthcare, retail, e-governance, and education. Our solutions and products include CRM, ERP, POS, Project management and collaboration, Employee performance management, Loyalty Programs, Channel management, Patient appointment scheduling, e-learning solutions, and much more. We provide cloud computing services to save time and money.

Steps to Hire Remote Developers

  1. Send an Inquiry: Simply send us an inquiry, providing information about your web development or mobile app development project requirement, as well as your objectives.
  2. Discuss Project Requirements: Our business analyst will provide technical feasibility and analysis of your project workflow & estimation.
  3. Start Work: Sign the agreement and a dedicated developer begins work on your web design, development, or mobile app development project.
  4. Delivery: Delivering quality work on time is most important for business growth Check all the work status according to project requirements.
  5. Scale a Team: Expand your team based on your development needs.

Hire Remote Developers, We Provide

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