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Most In-Demand Developer Jobs

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We have been keeping a close eye on the most in demand Software Developer Jobs and demand for Skills within the last quarter of the year!
So in 2018, what are the tech skills employers look for the most?

The percentage of job listings with Python has overtaken C# as the third most in-demand skill. The most notable change since Q2 is the jump in demand for Java by 8%. Although it comes second place to JavaScript, it’s the skill which has grown most rapidly in popularity in the second half of the year. The rise in demand for Python skills may relate to the surge in development of machine learning and AI in the UK.

Despite ongoing political and economic uncertainty, businesses are optimistic and are
continuing with their recruitment plans in 2018. For the IT sector there is an unprecedented demand that exists for skilled technology professionals, driven by regulatory changes, digital transformation projects and a continued emphasis on cyber security.

The competition for talent in the sector is intensifying, and for employers looking at
other ways to attract and retain skilled candidates is essential to avoid the negative
consequences of skills shortages such as a decrease in productivity, low employee
morale and hampered growth.

To find out more information on how you can make your business ready to attract top talent, or if you are a developer and you want advice on some of the best companies to work for in your area then please get in touch or call 0330 2233047

 

 

  • StackOverFlow 

Skype Now Supports Off-Site Technical Interviews!

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Skype introduces real-time code editor to help ease technical interview burdens!

If you have an off-site technical interview coming up, the last thing you want to be thinking about – never mind your knowledge and the pressure of the situation anyway – is how the technology you will be using will stand up.

Skype has launched a new preview feature which aims to help technical interviews be conducted more seamlessly.

The feature enables a video call to be placed on top of a code editor, meaning interviewers and their prospective candidates do not have to switch between two applications.

Skype says the editor, on its Skype.com web application, currently supports seven languages – C, C++, C#, Java, JavaScript, Python and Ruby – while it runs on Microsoft Edge or Google Chrome browsers, the latter at version 32 or above. The editor also includes built-in syntax highlighting.

All users need to do is visit the Skype Interviews website, click on ‘Start interview, and then once both participants follow the unique link sent out, the interview can begin.

It is worth noting that there are plenty of tools on the market which offer a similar kind of capability. HackerRank, a technical recruiter based in Palo Alto, California, is one example: the company adds a gamification element whereby programmers can practice different elements, face off against fellow users, and ultimately secure jobs.

Skype has been undergoing something of a revamp in recent weeks, with Skype Preview being launched earlier this month on desktop computers. The new interface “delivers most of the great features of [Skype’s] next generation mobile experience but is specifically designed with desktop in mind,” as Microsoft editor Todd VanderArk explained.

Check out some of our latest technical jobs here, you never know you might get the chance to check out Skype’s new technical interview features first hand.

 

 

 

 

 

  • James Bourne – Developer Tech

 

An Introduction to C#

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What is C#?

C# is an object oriented programming language developed by Microsoft. The C# language is designed to be platform independent, and borrows its syntax heavily from both Java and C++ (so any experience of those languages will help those starting out). The name comes from the musical notation, and indicates a progression or incremental version of C++.

The language is part of the wider Microsoft .NET Framework. The .NET framework is a set of libraries and standards that can be used across a variety of languages (including C#). The framework offers support for a number of user interface, data access and web application libraries and is the primary means of creating modern Windows applications.

 

Why use C#?

C# has become the goto language for Windows application developers for a number of reasons. Firstly it is heavily promoted in this way by Microsoft, and they offer a strong suite of tools to support it – Visual Studio being the most obvious example.

C# is also a popular language for projects involving the .NET Framework. The .NET Framework is included in most Windows operating platforms and has been adopted as somewhat of a standard for applications on the platforms too.

The .NET framework has been implemented on other platforms (such as Linux), by the Mono Project, so those wanting to develop away from Windows have option to do so. Xamarin also offer a number of products that allow developers to create mobile applications in C#. Microsoft recently unveiled news of a new open source compiler for .NET called Roslyn with which they are plotting the future of both Visual Basic and C#.

Performance wise, the language was never designed to challenge other languages like C or C++, running as it does on top of a ‘Just In Time’ (JIT) compiler (Languages like C++ are compiled for specific platforms). Its design goals are centred more around sound object oriented principles, and providing resilience and relatively easy debugging. That said for hardware independent projects, it is a more than capable modern language. Rosyln is part of a wider project by Microsoft to open source a lot of its development technologies, which many expect will help improve both compatibility and performance in the future.

 

Best starting tool to use

Visual Studio is the obvious tool for anyone wanting to get serious about C# development. As well as offering the features you would expect (syntax highlight, intelligence, integration with other Microsoft tools and technologies) it is also extremely well supported by the wider development community.

There are however many additional tools out there for you to explore along your journey of learning this excellent programming language!

 

Do you already have experience in working with C#? Check out our latest job vacancy on our website by following this link. It may be just right for you!

– Infragistics

What is C#?

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We have put together a top list of C# questions and answers to give you an overview of one of the most powerful languages in the world!  If you just want to brush up on your C# knowledge prior to an interview or simply understand its functions in more details, check out some of the most commonly asked questions.

  1. What is C#?

C# is an object oriented, type safe and managed language that is compiled by .Net framework to generate Microsoft Intermediate Language.

  1. What are the types of comment in C#?

i. Single line

ii. Multiple line (/* */)

iii. XML Comments (///).

  1. Can multiple catch blocks be executed?

No, Multiple catch blocks can’t be executed. Once the proper catch code executed, the control is transferred to the finally block and then the code that follows the finally block gets executed.

  1. What is the difference between public, static and void?

Public declared variables or methods are accessible anywhere in the application. Static declared variables or methods are globally accessible without creating an instance of the class. Static member are by default not globally accessible it depends upon the type of access modified used. The compiler stores the address of the method as the entry point and uses this information to begin execution before any objects are created. And Void is a type modifier that states that the method or variable does not return any value.

  1. What is an object?  

An object is an instance of a class through which we access the methods of that class. “New” keyword is used to create an object. A class that creates an object in memory will contain the information about the methods, variables and behavior of that class.

  1. Define Constructors?  

A constructor is a member function in a class that has the same name as its class. The constructor is automatically invoked whenever an object class is created. It constructs the values of data members while initializing the class.

  1. What is Jagged Arrays?

The array which has elements of type array is called jagged array. The elements can be of different dimensions and sizes. We can also call jagged array as Array of arrays.

  1. What is the difference between ref & out parameters?

An argument passed as ref must be initialized before passing to the method whereas out parameter needs not to be initialized before passing to a method.

  1. What is the use of using statement in C#?  

The using block is used to obtain a resource and use it and then automatically dispose of when the execution of block completed.

  1. What is serialization?  

When we want to transport an object through network then we have to convert the object into a stream of bytes. The process of converting an object into a stream of bytes is called Serialization. For an object to be serializable, it should implement ISerialize Interface. De-serialization is the reverse process of creating an object from a stream of bytes.

  1. Can “this” be used within a static method?  

We can’t use ‘This’ in a static method because we can only use static variables/methods in a static method.

  1. What is difference between constants and read-only?  

Constant variables are declared and initialized at compile time. The value can’t be changed afterwards. Read only is used only when we want to assign the value at run time.

  1. What is an interface class?  

Interface is an abstract class which has only public abstract methods and the methods only have the declaration and not the definition. These abstract methods must be implemented in the inherited classes.

  1. What are value types and reference types?  

When a variable is declared using one of the basic, built-in data types or a user defined structure, it is a value type. An exception is the string data type, which is areference type. A value type stores its contents in memory allocated on the stack.

  1. What are Custom Control and User Control?  

Custom Controls are controls generated as compiled code (Dlls), those are easier to use and can be added to toolbox. Developers can drag and drop controls to their web forms. Attributes can be set at design time. We can easily add custom controls to Multiple Applications (If Shared Dlls), If they are private then we can copy to dll to bin directory of web application and then add reference and can use them.
User Controls are very much similar to ASP include files, and are easy to create. User controls can’t be placed in the toolbox and dragged – dropped from it. They have their design and code behind. The file extension for user controls is ascx.

  1. What are sealed classes in C#?  

We create sealed classes when we want to restrict the class to be inherited. Sealed modifier used to prevent derivation from a class. If we forcefully specify a sealed class as base class then a compile-time error occurs.

  1. What is method overloading?  

Method overloading is creating multiple methods with the same name with unique signatures in the same class. When we compile, the compiler uses overload resolution to determine the specific method to be invoke.

  1. What is the difference between Array and Arraylist?  

In an array, we can have items of the same type only. The size of the array is fixed. An arraylist is similar to an array but it doesn’t have a fixed size.

  1. Can a private virtual method be overridden?  

No, because they are not accessible outside the class.

  1. Describe the accessibility modifier “protected internal”.

Protected Internal variables/methods are accessible within the same assembly and also from the classes that are derived from this parent class.

  1. What are the differences between System.String and System.Text.StringBuilder classes?

System.String is immutable. When we modify the value of a string variable then a new memory is allocated to the new value and the previous memory allocation released. System.StringBuilder was designed to have concept of a mutable string where a variety of operations can be performed without allocation separate memory location for the modified string.

  1. What’s the difference between the System.Array.CopyTo() and System.Array.Clone() ?

Using Clone() method, we creates a new array object containing all the elements in the original array and using CopyTo() method, all the elements of existing array copies into another existing array. Both the methods perform a shallow copy.

  1. How can we sort the elements of the array in descending order?

Using Sort() methods followed by Reverse() method.

  1. What’s the difference between an interface and abstract class?

Interfaces have all the methods having only declaration but no definition. In an abstract class, we can have some concrete methods. In an interface class, all the methods are public. An abstract class may have private methods.

  1. What is the difference between Finalize() and Dispose() methods?

Dispose() is called when we want for an object to release any unmanaged resources with them. On the other hand Finalize() is used for the same purpose but it doesn’t assure the garbage collection of an object.

  1. What are circular references?

Circular reference is situation in which two or more resources are interdependent on each other causes the lock condition and make the resources unusable.

  1. What are generics in C#.NET?

Generics are used to make reusable code classes to decrease the code redundancy, increase type safety and performance. Using generics, we can create collection classes. To create generic collection, System.Collections.Generic namespace should be used instead of classes such as ArrayList in the System.Collections namespace. Generics promotes the usage of parameterized types.

  1. What is an object pool in .NET?

An object pool is a container having objects ready to be used. It tracks the object that is currently in use, total number of objects in the pool. This reduces the overhead of creating and re-creating objects.

  1. List down the commonly used types of exceptions in .Net?

ArgumentException, ArgumentNullException , ArgumentOutOfRangeException, ArithmeticException, DivideByZeroException ,OverflowException , IndexOutOfRangeException ,InvalidCastException ,InvalidOperationException , IOEndOfStreamException , NullReferenceException , OutOfMemoryException , StackOverflowException etc.

  1. What are Custom Exceptions?

Sometimes there are some errors that need to be handle as per user requirements. Custom exceptions are used for them and are used defined exceptions.

  1. What are delegates?

Delegates are same as are function pointers in C++ but the only difference is that they are type safe unlike function pointers. Delegates are required because they can be used to write much more generic type safe functions.

  1. How do you inherit a class into other class in C#?

Colon is used as inheritance operator in C#. Just place a colon and then the class name.

  1. What is the difference between method overriding and method overloading?

In method overriding, we change the method definition in the derived class that changes the method behavior. Method overloading is creating a method with the same name within the same class having different signatures.

  1. What are the different ways a method can be overloaded?

Methods can be overloaded using different data types for parameter, different order of parameters, and different number of parameters.

  1. Why can’t you specify the accessibility modifier for methods inside the interface?

In an interface, we have virtual methods that do not have method definition. All the methods are there to be overridden in the derived class. That’s why they all are public.

  1. How can we set class to be inherited, but prevent the method from being over-ridden?

Declare the class as public and make the method sealed to prevent it from being overridden.

  1. What happens if the inherited interfaces have conflicting method names?

When using explicit interface implementations, the functions are not public on the class. Therefore in order to access these functions, you have to first cast the object to the interface type, or assign it to a variable declared of the interface type.

  1. What is the difference between a Struct and a Class?

Structs are value-type variables and classes are reference types. Structs stored on the stack, causes additional overhead but faster retrieval. Structs cannot be inherited.

  1. How to use nullable types in .Net?

Value types can take either their normal values or a null value. Such types are called nullable types.

  1. How we can create an array with non-default values?

We can create an array with non-default values using Enumerable.

  1. What is difference between is and as operators in c#?

“is” operator is used to check the compatibility of an object with a given type and it returns the result as Boolean.

“as” operator is used for casting of object to a type or a class.

  1. What’s a multicast delegate?

A delegate having multiple handlers assigned to it is called multicast delegate. Each handler is assigned to a method.

  1. What are indexers in C# .NET?

Indexers are known as smart arrays in C#. It allows the instances of a class to be indexed in the same way as array.

  1. What is difference between the “throw” and “throw ex” in .NET?

“Throw” statement preserves original error stack whereas “throw ex” have the stack trace from their throw point. It is always advised to use “throw” because it provides more accurate error information.

  1. What are C# attributes and its significance?

C# provides developers a way to define declarative tags on certain entities eg. Class, method etc. are called attributes. The attribute’s information can be retrieved at runtime using Reflection.

  1. How to implement singleton design pattern in C#?

In singleton pattern, a class can only have one instance and provides access point to it globally.

  1. What is the difference between directcast and ctype?

DirectCast is used to convert the type of an object that requires the run-time type to be the same as the specified type in DirectCast.

Ctype is used for conversion where the conversion is defined between the expression and the type.

  1. Is C# code is managed or unmanaged code?

C# is managed code because Common language runtime can compile C# code to Intermediate language.

 

Do you feel worthy of utilizing the answers to these questions in a real interview scenario? Take a look at our latest C#/ASP.NET Senior Software Development role and see if you’ve got what it takes! You can check it out by following this link!

– Guru99

Software Development Feature: 12 Major Advantages of ASP.NET

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ASP.NET stands for Active Server Pages .NET and is developed by Microsoft. ASP.NET is used to create web pages and web technologies and is an integral part of Microsoft’s .NET framework vision. As a member of the .NET framework, ASP.NET is a very valuable tool for software programmers and software developers as it allows them to build dynamic, rich web sites and web applications using compiled languages like VB and C#.

ASP.NET is not limited to script languages, it allows you to make use of .NET languages like C#, J#, VB, etc. It allows software developers to build very compelling applications by making use of Visual Studio, the development tool provided by Microsoft. ASP.NET is purely server-side technology. It is built on a common language runtime that can be used on any Windows server to host powerful ASP.NET web sites and technologies.

In the early days of the Web i.e. before the release of Internet Information Services (IIS) in 1997, the contents of web pages were largely static. These web pages needed to be constantly, and manually, modified. There was an urgent need to create web sites that were dynamic and would update automatically.

Microsoft’s Active Server Pages (ASP) was brought to the market to meet this need. ASP executed on the server side, with its output sent to the user’s web browser, thus allowing the server to generate dynamic web pages based on the actions of the user.

These server-side technologies are important contributions to the development of the Web. Amazon.com, eBay.com, and many other popular web sites use ASP.NET as the framework for their site; without ASP.NET it would not be possible.

 

12 important advantages ASP.NET offers over other Web development models:
  1. ASP.NET drastically reduces the amount of code required to build large applications.
  2. With built-in Windows authentication and per-application configuration, your applications are safe and secured.
  3. It provides better performance by taking advantage of early binding, just-in-time compilation, native optimization, and caching services right out of the box.
  4. The ASP.NET framework is complemented by a rich toolbox and designer in the Visual Studio integrated development environment. WYSIWYG editing, drag-and-drop server controls, and automatic deployment are just a few of the features this powerful tool provides.
  5. Provides simplicity as ASP.NET makes it easy to perform common tasks, from simple form submission and client authentication to deployment and site configuration.
  6. The source code and HTML are together therefore ASP.NET pages are easy to maintain and write. Also the source code is executed on the server. This provides a lot of power and flexibility to the web pages.
  7. All the processes are closely monitored and managed by the ASP.NET runtime, so that if process is dead, a new process can be created in its place, which helps keep your application constantly available to handle requests.
  8. It is purely server-side technology so, ASP.NET code executes on the server before it is sent to the browser.
  9. Being language-independent, it allows you to choose the language that best applies to your application or partition your application across many languages.
  10. ASP.NET makes for easy deployment. There is no need to register components because the configuration information is built-in.
  11. The Web server continuously monitors the pages, components and applications running on it. If it notices any memory leaks, infinite loops, other illegal activities, it immediately destroys those activities and restarts itself.
  12. Easily works with ADO.NET using data-binding and page formatting features. It is an application which runs faster and counters large volumes of users without having performance problems

In short ASP.NET, the next generation version of Microsoft’s ASP, is a programming framework used to create enterprise-class web sites, web applications, and technologies. ASP.NET developed applications are accessible on a global basis leading to efficient information management. Whether you are building a small business web site or a large corporate web application distributed across multiple networks, ASP.NET will provide you all the features you could possibly need…and at an affordable cost: FREE!

Do you possess skills in ASP.NET? Check out our latest Software Development job role which is focuses mainly on C#/ASP.NET by following this link!

– Steve Kozyk

Top 10 Most In-Demand Software Programming Languages

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The tech sector is booming! As a result, software coding skills are in high demand, with programming jobs paying significantly more than the average position. Even beyond the tech world, an understanding of at least one programming language makes an impressive addition to any CV.

The in-vogue languages vary by employment sector. Financial and enterprise systems need to perform complicated functions and remain highly organized, requiring languages like Java and C#. Media- and design-related webpages and software will require dynamic, versatile and functional languages with minimal code, such as Ruby, PHP, JavaScript and Objective-C..

So what are the top 10 in-demand programming languages to date?

 

  1. SQL

It’s no surprise SQL (pronounced ‘sequel’) tops the job list since it can be found far and wide in various flavors. Database technologies such as MySQL, PostgreSQL and Microsoft SQL Server power big businesses, small businesses, hospitals, banks, universities. Indeed, just about every computer and person with access to technology eventually touches something SQL. For instance, all Android phones and iPhones have access to a SQL database called SQLite and many mobile apps developed Google, Skype and DropBox use it directly.

  1. Java

The tech community recently celebrated the 20th anniversary of Java. It’s one of the most widely adopted programming languages, used by some 9 million developers and running on 7 billion devices worldwide. It’s also the programming language used to develop all native Android apps. Java’s popularity with developers is due to the fact that the language is grounded in readability and simplicity. Java has staying power since it has long-term compatibility, which makes sure older applications continue to work now into the future. It’s not going anywhere anytime soon and is used to power company websites like LinkedIn.com, Netflix.com and Amazon.com.

  1. JavaScript

JavaScript – not to be confused with Java – is another one of the world’s most popular and powerful programming languages, and is used to spice up web pages by making them interactive. For example, JavaScript can be used to add effects to web pages, display pop-up messages or to create games with basic functionality. It’s also worth noting that JavaScript is the scripting language of the World Wide Web and is built right into all major web browsers including Internet Explorer, FireFox and Safari. Almost every website incorporates some element of JavaScript to add to the user experience, adding to the demand for JavaScript developers. In recent years JavaScript has also gained use as the foundation of Node.js, a server technology that among other things enables real-time communication.  

  1. C#

Dating from 2000, C# (pronounced C-sharp) is a relatively new programming language designed by Microsoft for a wide range of enterprise applications that run on the .NET Framework. An evolution of C and  C++, the C# language is simple, modern, type safe and object oriented.

  1. C++

C++ (pronounced C-plus-plus) is a general purpose object-oriented programming language based on the earlier ‘C’ language. Developed by Bjarne Stroustrup at Bell Labs, C++ was first released in 1983. Stroustrup keeps an extensive list of applications written in C++. The list includes Adobe and Microsoft applications, MongoDB databases, large portions of Mac OS/X and is the best language to learn for performance-critical applications such as “twitch” game development or audio/video processing.

  1. Python

Python is a general purpose programming language that was named after the Monty Python (so you know it’s fun to work with)! Python is simple and incredibly readable since closely resembles the English language. It’s a great language for beginners, all the way up to seasoned professionals. Python recently bumped Java as the language of choice in introductory programming courses with eight of the top 10 computer science departments now using Python to teach coding, as well as 27 of the top 39 schools. Because of Python’s use in the educational realm, there are a lot of libraries created for Python related to mathematics, physics and natural processing. PBS, NASA and Reddit use Python for their websites.

  1.     PHP

Created by Danish-Canadian programmer Rasmus Lerdorf in 1994, PHP was never actually intended to be a new programming language. Instead, it was created to be a set of tools to help Rasmus maintain his Personal Home Page (PHP). Today, PHP (Hypertext Pre-Processor) is a scripting language, running on the server, which can be used to create web pages written in HTML. PHP tends to be a popular language since its easy-to use by new programmers, but also offers tons of advanced features for more experienced programmers.

  1. Ruby on Rails

Like Java or the C language, Ruby is a general purpose programming language, though it is best known for its use in web programming, and Rails serves as a framework for the Ruby Language. Ruby on Rails has many positive qualities including rapid development, you don’t need as much code, and there are a wide variety of 3rd party libraries available. It’s used from companies ranging from small start-ups to large enterprises and everything in-between. Hulu, Twitter, Github and Living Social are using Ruby on Rails for at least one of their web applications.

  1.    iOS/Swift

In 2014, Apple decided to invent their own programming language. The result was Swift – a new programming language for iOS and OS X developers to create their next killer app. Developers will find that many parts of Swift are familiar from their experience of developing in C++ and Objective-C. Companies including American Airlines, LinkedIn, and Duolingo have been quick to adopt Swift, and we’ll see this language on the rise in the coming years.

  1.     Objective C

Objective-C is a general-purpose, object-oriented programming language used by the Apple operating system. It powers Apple’s OS X and iOS, as well as its APIs, and can be used to create iPhone apps, which has generated a huge demand for this once-outmoded programming language.

 

Any great craftsman has a belt full of tools, each a perfect choice for certain situations. Similarly, there will never be just a single programming language, and each language will evolve and improve over time to keep pace with innovation.

If you’re interested in becoming a developer, it’s important to be well-versed in a number of programming languages so you can be versatile and adaptable – and then continue to learn/master languages throughout your career.

 

If you have reasonable knowledge within any of these programming language types, our new Software Developer role may be just right for you. Check it out by clicking here!

 

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