14 AWS Developer interview questions and answers

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What is AWS in your own words?

Your talent should know that AWS is the abbreviation for Amazon Web Services. Amazon provides these AWS services, and they use a specifically distributed IT infrastructure to provide on-demand IT resources.

What type of cloud services is AWS? 

The developer should know that AWS is a mixture of three different types of cloud service providers. In their answer, look for the following responses and ask for a few examples of each cloud service to confirm this deeper understanding: 

  • Software as a Service (SaaS), example includes Microsoft Office365 
  • Platform as a Service (PaaS), example includes AWS Elastic Beanstalk, Amazon S3 or Redshift 
  • Infrastructure as a Service (IaaS), example includes AWS EC2 Instance

Why would you use SnowBall?

A skilled AWS programmer should know how to use SnowBall to transfer terabytes of data inside and outside the AWS environment. Understanding how to use this function indicates that the programmer can navigate management controls and set up and provide the functionality to route data inside and outside the application environment.

Describe Regions and Availability Zones in AWS.

Understanding this concept helps when launching different types of programs depending on the region. For example, your coder may want to launch instances in North America to be closer to the North American customers or to meet specific legal requirements within the area. The developer should understand that regions are geographical areas that consist of two or more availability zones, while availability zones are the data centers that can be within the country or the city. 

What are AWS edge locations used for?

Make sure that the developer knows that AWS edge locations are not the same as regions or availability zones. Edge locations are AWS data centers designed to deliver services with the lowest latency possible. Your talent should know that these locations are more typically found in major cities for quick responses and load times. 

Why would you use CloudWatch?

A contractor should understand CloudWatch and how it helps monitor AWS environments like EC2, RDS Instances, and CPU utilization. Familiarity with CloudWatch shows that the developer knows how to set up alarms that trigger depending on the instance type and various metrics.

How would you set up a system to monitor website metrics within real-time AWS?

While there can be a few answers to this question, a skilled contractor should be using Amazon CloudWatch and AWS Cloudtrail to monitor the status of various services. Look for some of these specific metrics that can be monitored within real-time AWS:

  • Amazon EC2 changes
  • Auto-scaling lifecycle events
  • Scheduled and automation events
  • Console authentication sign-in events
  • API calls

Why is there a cap on elastic IPs?

A skilled AWS programmer should know the max elastic IP number, because if you need more, you must submit a request for additional Elastic IPs to Amazon. In AWS, the max elastic load you can have per AWS account is five.

What is a load balancer?

Your talent should be able to describe the functionality of a load balancer as a virtual machine that balances your web application load. This internet gateway balances multiple servers so that no operating systems or servers get overwhelmed. Understanding this concept shows that the developer understands how to keep systems functioning properly and safely. 

Explain how the elastic block store works 

Understanding elastic volume and elastic block store (Amazon EBS) are two features that provide a block storage volume for EC2 instances in the AWS cloud. A contractor who understands how this storage works can tune performance metrics, increase storage, and change volume types without any hiccups within the workload. In addition, working within the elastic block offers elastic IP addresses with high durability and low-latency performance required to run workloads. 

What are the real-time benefits of using AWS services?

A skilled contractor should be able to extrapolate how AWS offers multiple types of scalable storage opportunities allowing businesses to make their own decisions. A well-formed answer should include that AWS provides a simple storage service with email services for large amounts of archiving and data storage within a virtual private cloud. 

Is AWS open source and free to use?

Since its inception, Amazon Web Services (AWS) has been a place for customers to create tutorials and build open-source management consoles within the cloud. Your talent should be able to define AWS’s past and also lay out the pricing structure. While some AWS services are free of charge to specified limits, they offer pricing for various tiers of Amazon s3, security groups, computing services, and Amazon CloudFront content delivery. A skilled coder has typically used every free and paid feature of the AWS platform. 

What is auto scaling?

A suitable contractor should be able to understand auto-scaling and how it is a feature in AWS that automatically scales the amount of data to a steady level. They should be able to describe that when you use the Amazon EC2 auto-scaling group, you can also create a template to scale additional resources built for AWS services.

Do you need to have coding experience for AWS cloud computing?

While AWS developers should be familiar with Java and Python, knowing how to operate within a data warehouse is not required for proficiency with AWS resources. However, understanding the fundamentals of DevOps and the basics of key pairs, SQL, and storage classes will help the user better understand AWS functionality.



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  • $50 hourly
    Ali A.
    AWS Developer
    • 5.0
    • (9 jobs)
    Lahore, PB
    vsuc_fltilesrefresh_TrophyIcon Amazon Web Services
    Web Services Development
    Database Design
    Ruby on Rails
    Web Development
    I've studied computer science. I have an experience of Web Development with the flavor of HTML, CSS, Bootstrap, JavaScript and other web development tools. I really enjoy this fact that thousands of users use applications that are developed by me. The ultimate dream is that one-day thousands will grow into millions or billions. I HAVE A DREAM! Overall if summarized my experience that would be exploring, organizing information, problem-solving and implementation. Languages are essential for expressing your programming skills overall. From EXPLORING attribute I have worked around lots of different languages. 1) Ruby 2) AngularJS 3) Javascript 4) Python ( a new sensation I always wanted to explore Erlang but then I found this beauty. Python leverages the Erlang VM, known for running low-latency, distributed and fault-tolerant systems, while also being successfully used in web development and the embedded software domain.) In assistance to above languages below frameworks come into play, 1) Ruby on Rails 2) Laravel 3) Django Databases are the main central storage of any web application. I got experience in both SQL and NoSQL 1) Postgres 2) MongoDB 3) SQLite 4) Mysql The game never ended on the server side for me. Frontend/public facing part of the web application has been also highly evolved. Everyone wants to use Single Page Applications - The SPAs. I got experience in the following 1) Angular JS 2) React JS Testing and Test Driven Development(TDD) is also an essential thing for any solid applications. I can write automated tests in following 1) Rspec 2) Capybara 3) Mocha Deployment is essential to distribute your application out in the wild. I got experience in the following tools and technologies 1) AWS 2) Google Cloud Platforms 3) Capistrano 4) Mina 5) Nginx 6) Passenger Phusion 7) Puma 7) Unicorn
  • $90 hourly
    Austin F.
    AWS Developer
    • 5.0
    • (7 jobs)
    Brandon, MS
    vsuc_fltilesrefresh_TrophyIcon Amazon Web Services
    QA Automation
    Data Visualization
    Unit Testing
    Data Analytics
    ML Automation
    Machine Learning
    Data Science
    I am a software developer and data professional with over five years experience. My business philosophy is to provide solutions that generate value for the client long after I deliver them. I'm currently undergoing rigorous study to better understand and integrate various technologies to offer more comprehensive support to my clients. I can help implement: - various types of automation, including quality assurance automation - certain cloud solutions with GCP, AWS, and Microsoft AzureML - data transformations - machine learning models - dashboards - command-line interfaces - financial analyses - Jupyter notebooks - spreadsheet solutions (Google Sheets and Excel) - various types of interactive visualizations - software modules (in particular, I'm currently learning to build Python modules in Rust for faster performance) I have formal training as an engineer up to the Master's level. I have training from past full-time roles as research engineer and data analyst. I attribute much of my current skills to ongoing self-study using online resources such as Packt and O'Reilly technology and business training. I am also developing my skills in Rust and online cloud services. As a research engineer, I developed experimental machine learning models with Python and wrote corresponding technical reports. These efforts were also the subject of my graduate work. As a data analyst, I collected and analyzed data from solar energy infrastructure projects and conducted external market research to determine future project viability in different regions. Since joining Upwork, I have assisted clients with ML and data engineering tasks. As mentioned earlier, I am currently training to be a full-stack solutions architect with both coding and strategic planning offerings.
  • $8 hourly
    Nusrat J.
    AWS Developer
    • 5.0
    • (43 jobs)
    Khulna, KHULNA
    vsuc_fltilesrefresh_TrophyIcon Amazon Web Services
    eBay Listing
    Data Entry
    I am experienced Product Uploader. I have been working on magento and amazon for more than 5 years. I have over 3100 hours and more than 40 job experience in Upwork. I have much experience of working on both sites. For Magento My skills involve: ----------------------------------- => Upload Product ( Manually and via CSV both way) => Huge experience of creating quality listings => Create Simple product => Create Configurable product => Create Meta Tag and Meta Description. => Create Category, Attribute and attribute set. For Amazon My skills involve: ------------------------------------ => Upload Product ( Manually and via excel both way) => Huge experience of creating quality listings => Write product titles and descriptions. => Create Parent/child product => Create Variation => Create Text File For excel Upload. => Inventory management and Order processing. I am always do the job within all the deadlines given. I will Only say yes, I can do your job when I am 100% sure about your all requirement. I am looking forward to working with you. Yours Sincerely, Nusrat
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