Amazon Web Services Freelance Jobs

 

Cyber and Data Security Consultancy (Server +Client Side) 

Hourly - Est. Budget - $28.00, Expiry - May 14, 2020, Proposals(8) - posted at 10 hours ago
We are looking for a security expert with knowledge and experience of consulting organisations on best practices related to cloud solutions, software architecture, data and information security.

AWS expert needed to configure and deploy our virtual desktop environment. 

Hourly - Est. Budget - $28.00, Expiry - May 13, 2020, Proposals(18) - posted at 22 hours ago
We are looking for an Amazon Workspaces expert who can set up our 5 Windows virtual workspaces. The developer and administrator's task include:- Setting up the AWS environment- Uploading and configuring our Windows based software - Linking our AWS virtual desktops to our Google Drive Stream files- Instructing our staff on fut...read more

AWS / Active Directory / System Administrator 

Hourly - Est. Budget - $20.00, Expiry - May 13, 2020, Proposals(16) - posted at 23 hours ago
We are looking for an AWS / Active Directory System Administrator to resolve a DNS Issue. This is a small project and our infrastructure is hosted on AWS and we'd like someone to help troubleshoot and resolve the issue with our DC.

AWS ec2 and RDS instances prediction 

Hourly - Est. Budget - $36.00, Expiry - May 11, 2020, Proposals(16) - posted at 2 days ago
We are looking for someone to write a script to analyze cloudwatch data for ec2 and RDS instances, and provide recommendations to use what type of instances to use to save money.

Devops with Terraform and AWS experience 

Hourly - Est. Budget - $20.00, Expiry - May 9, 2020, Proposals(20) - posted at 5 days ago
We have 10+ environments of our product stack that is moving from ad-hoc to devops practices, we need +1 devops engineer for the team to crack tasks faster.Azure / Java experience is a plus.

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Need help in recovering AWS EC2 access keys. Lost public and private keys. 

Hourly - Est. Budget - $20.00, Expiry - May 9, 2020, Proposals(21) - posted at 5 days ago
We have a AWS EC2 instance. We seem to have lost the access keys to it. We need help in re-establishing the connection to the instance and replacing the key pair. Quick job for someone who is familiar with this.

DEDICATED SERVER MIGRATION TO AWS AND DOCKER 

Hourly - Est. Budget - $28.00, Expiry - May 7, 2020, Proposals(13) - posted at 6 days ago
We have been running a little SAAS app on our own dedicated server for 2 years and a half.We have been experiencing some limitations with our current server and want to change it.We want to move to DOCKER + AWS cloud service.We are looking for a professional experienced person with this kind of migration who is available ASAP fo...read more

Need AWS specialist to help upgrade EC2 instances from m3 to m5 (PV to HVM) 

Hourly - Est. Budget - $28.00, Expiry - May 7, 2020, Proposals(15) - posted at one week ago
We need an AWS specialist to assist us in migrating our current m3, PV servers (ubuntu) to m5 HVM servers. This would need to be done via screenshare/pair programming. Our infrastructure includes migrating:1 web server hosting a Rails application1 web staging server hosting a rails application, mysql database, redis, memcached...read more

AWS Server Tuning Specialist Developer 

Hourly - Est. Budget - $28.00, Expiry - May 6, 2020, Proposals(0) - posted at one week ago
We need a very experienced AWS specialist to assess our setup and help figure out bottlenecks and a recommended setup. We have 5 of sites that often have up to 3000 concurrent users and are struggling to get an optimal setup that doesn't ramp up our first paint / document interactive time during these spikes. Our sites are modif...read more

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Setup our AWS WAF 

Hourly - Est. Budget - $28.00, Expiry - May 6, 2020, Proposals(6) - posted at one week ago
We need assistance in setting up the AWS WAF on our current Rackspace managed AWS account.

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Nowadays, Android is not just on tens of thousands of different phones and tablets. It’s on your wrist, in your living room, in your car, and as soon we start assigning IP addresses to inanimate objects, it is going to be pretty much everywhere around us. A lot of ground for even an experienced Android developer to cover!

 

Also there are over one million apps on Google Play, not counting Amazon AppStore or markets we are not generally interested in.

 

So, how can an independent developer create a successful app in this huge market with big players? I have no idea, I haven’t made a successful app! But, I have made a cute one, and I’d like to share my story with you.

Few Android Studio Tips, Tricks & Resources you should be familiar with, as an Android Developer

The reason of this article, is to list helpful tips, tricks, shortcuts and resources for Android Studio that will improve your overall efficiency and performance.

 

1.Material Colors theme for Android Logcat

To change Android Studio Logcat you need to go to:Preferences (Settings on Windows / Linux machines) → Editor → Colors & Fonts → Android Logcat and change the foreground color for every type of log.

 

2. Prevent Android Studio Logcat from clearing the log for the current application when it crashes. 

To do that you need to go to theAndroid Monitorpanel and chooseEdit filter configurationon the right side dropdown.

 

3. Apply a proper code style to your IDE (IntelliJ / Android Studio). 

Go toPreferences → Code Style → Javaand in aSchemedropdown you can choose your code style (or set up a new one).

2 styles which are especially worth to mention:

Square Java Code Styles with Android

Google Java Code Style.

 

4. Use split screen for increasing efficiency.

To turn this feature on, you need to right mouse click on the tab of your main screen and choose Split Vertically / Horizontally feature.

But to be as efficient as possible we need to set up a custom keyboard’s shortcut. To do that go to Preferences → Keymap and search for Split Vertically. Then open a context menu and click Add Keyboard Shortcut

It is shown on a gif below. You can define the shortcut for a horizontal split view as well.

 

5. Distraction Free Mode. 

You can enable it by going to: View → Enter Distraction Free Mode

 

6. Use Live Templates

you can use many already defined templates, like for Toasts or if conditions.

you can use your own custom templates. Here is a great reference article by Reto Meier. You can also refer to the IntelliJ IDEA documentation.

 

Learn XML And Java

Extensible markup language (XML) is a markup language that’s the foundation for the Android user interface (UI) and elements. Java is the back-end coding language of the Android platform, and it’s used with binding functionality with your XML layouts. Let’s take a look at a small example.

 

<?xml version="1.0" encoding="utf-8"?> <layout xmlns:android=http://schemas.android.com/apk/res/android"> <data> <variable name="user" type="com.example.User"/> </data> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@{user.firstName}"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@{user.lastName}"/> </LinearLayout> </layout>

 

This small layout has one data object defined as “User.” For developers used to binding elements in even web design, this should be intuitive for you. The data element is defined in Java, and then the object data is bound to the front-end layout element. In this example, we have a first and last name. The following Java code is an example of a User class used for the binding.

 

public class User { public final String firstName; public final String lastName; public User (String firstName, String lastName){ this.firstName = firstName; this.lastName = lastName; } }

Notice that the constructor takes a first and last name variable and binds the data to the public class properties. When the screen opens on the device, this data is then bound to the front-end elements.

 

Before you get started in Android Application development, you should be expert in both of these technologies. Understanding the fundamentals of XML formats is relatively easy, but Java is an object-oriented language and object-oriented programming (OOP) can be challenging if you’re not familiar with the concept. A newer language and framework, Kotlin, has been introduced to help advance Android app development. It can also be used with legacy Java apps as Kotlin co-operates with Java code.

 

The best way to learn Java is to dive into someone else’s code. GitHub is filled with open-source projects that help you understand Java and OOP concepts. The better your OOP skills are, the easier it will be to create a better coded, less buggy Android app.

 

Understand Memory Limitations

Mobile devices don’t have the high memory limitations that desktops have. In mobile programming, you must learn to code with smaller memory limitations in mind. If you carelessly use memory on an Android device, you run the risk of your app crashing due to “out of memory” errors.

To work around this, use services on the device sparingly and release memory resources when your app is hidden. You can release memory resources by overriding the onTrimMemory event although you should know that this isn’t a magic solution that allows you to ignore other performance optimization throughout your code. The following is a small sample of pseudocode that shows you how to override the event.

@Override public void onTrimMemory(int level) { if (level >= TRIM_MEMORY_MODERATE) {

//release resources here } }

Google also recommends that you avoid or at least reduce the use of bitmaps to lower the memory use when your app is running on the device. 

 

Don’t Use The Emulator For Real-World Testing

The Emulator in Android Studio is good for development and even debugging, but it doesn’t fully simulate a working Android device. You can consider basic environment features with the Emulator, but when it comes to testing, you should always use actual devices.

Of course, this is a huge investment for an Android developer, but it will make the entire development and testing life cycle much more efficient. It also ensures that you’re able to test your applications in various conditions as the user changes settings on the actual device. You can, however, use automated cloud solutions such as Amazon’s Testing platform.

 

Testing should never be taken lightly. It should be a major part when you design and deploy apps for your clients. Fewer bugs means happier users, and it can also mean a more successful app in Google Play. This doesn’t mean that you need to buy every device on the market to test your app on, but you should account for some of the more popular ones and the most common screen sizes.

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