Sri Tech Solutions Inc. is a prominent technology services company renowned for delivering innovative data solutions across various industries. Based in Toronto, Ontario, Canada, they have carved a niche in harnessing the power of data to drive business success.

As an Azure Data Engineer at Sri Tech Solutions Inc., you'll be at the forefront of their cloud-based data initiatives. This full-time position requires a minimum of 8 years of experience in data engineering, with expertise in Azure Data Factory, Azure Databricks Spark (PySpark or Scala), and SQL. Familiarity with on-premises data ingestion, Sqoop/Hadoop, and cloud certifications in Azure/AWS/GCP are essential. Strong programming skills in Python, Scala, or Java, in conjunction with proficient SQL skills (T-SQL or PL-SQL), are highly valued.

This guide on Interview Query will walk you through the interview process, commonly asked questions, and provide useful tips to help you succeed. Let's get started!

Submitting Your Application

The first step is to submit a compelling application that reflects your technical skills and interest in joining Sri Tech Solutions Inc. as a Data Engineer. Whether you were contacted by a Sri Tech Solutions recruiter or have taken the initiative yourself, carefully review the job description and tailor your CV according to the prerequisites.

Tailoring your CV may include identifying specific keywords that the hiring manager might use to filter resumes and crafting a targeted cover letter. Furthermore, don’t forget to highlight relevant skills and mention your work experiences.

Recruiter/Hiring Manager Call Screening

If your CV happens to be among the shortlisted few, a recruiter from the Sri Tech Solutions Talent Acquisition Team will make contact and verify key details like your experiences and skill level. Behavioral questions may also be a part of the screening process.

In some cases, the Sri Tech Solutions Data Engineer hiring manager stays present during the screening round to answer your queries about the role and the company itself. They may also indulge in surface-level technical and behavioral discussions.

The whole recruiter call should take about 30 minutes.

Technical Virtual Interview

Successfully navigating the recruiter round will present you with an invitation for the technical screening round. Technical screening for the Sri Tech Solutions Data Engineer role usually is conducted through virtual means, including video conference and screen sharing. Questions in this 1-hour long interview stage may revolve around:

• Azure Data Factory
• Azure Databricks Spark (PySpark or Scala)
• SQL
• Experience in Azure ingestion from on-prem sources such as mainframe, SQL Server, or Oracle
• Programming skills with Python, Scala, or Java
• Hadoop/Sqoop

Depending on the complexity of the role, case studies and real-scenario problems might also be presented to candidates for solving. Another key area could be skills in versioning with Git and orchestration tools like Autosys and Oozie.

Onsite Interview Rounds

Followed by a second recruiter call outlining the next stage, you’ll be invited to attend the onsite interview loop. Multiple interview rounds, varying with the role, will be conducted during your day at the Sri Tech Solutions office. Your technical prowess, including programming, data engineering skills, and cloud proficiency, will be evaluated against the finalized candidates throughout these interviews.

If you were assigned take-home exercises, a presentation round may also await you during the onsite interview for the Data Engineer role at Sri Tech Solutions.

Quick Tips For Sri Tech Solutions Data Engineer Interviews

• Brush Up on Azure Stack: Ensure you are well-versed in the Azure ecosystem including Data Factory, Databricks, and cloud ingestion techniques.
• Strong SQL and Coding Skills: Strong SQL skills (T-SQL or PL-SQL) and programming proficiency (Python, Scala, or Java) are critical.
• Hands-On Data Engineering Projects: Demonstrate practical knowledge of source-code versioning, orchestration tools, and working with metadata files by discussing real-world projects you've worked on.

Typically, interviews at Sri Tech Solutions Inc. vary by role and team, but commonly Data Engineer interviews follow a fairly standardized process across these question topics.

• Write a SQL query to select the 2nd highest salary in the engineering department. Write a SQL query to select the 2nd highest salary in the engineering department. If more than one person shares the highest salary, the query should select the next highest salary.

• Write a function to find the maximum number in a list of integers. Given a list of integers, write a function that returns the maximum number in the list. If the list is empty, return None.

• Create a function convert_to_bst to convert a sorted list into a balanced binary tree. Given a sorted list, create a function convert_to_bst that converts the list into a balanced binary tree. The output binary tree should be balanced, meaning the height difference between the left and right subtree of all the nodes should be at most one.

• Write a function to simulate drawing balls from a jar. Write a function to simulate drawing balls from a jar. The colors of the balls are stored in a list named jar, with corresponding counts of the balls stored in the same index in a list called n_balls.

• Develop a function can_shift to determine if one string can be shifted to become another. Given two strings A and B, write a function can_shift to return whether or not A can be shifted some number of places to get B.

• What are the drawbacks of having student test scores organized in the given layouts? Assume you have data on student test scores in two different layouts. Identify the drawbacks of these layouts and suggest formatting changes to make the data more useful for analysis. Additionally, describe common problems seen in "messy" datasets.

• How would you locate a mouse in a 4x4 grid using the fewest scans? You have a 4x4 grid with a mouse trapped in one cell. You can scan subsets of cells to know if the mouse is within that subset. Describe a strategy to find the mouse using the fewest number of scans.

• How would you select Dashers for Doordash deliveries in NYC and Charlotte? Doordash is launching delivery services in New York City and Charlotte. Describe the process for selecting Dashers (delivery drivers) and discuss whether the criteria for selection should be the same for both cities.

• What factors could bias Jetco's study on boarding times? Jetco, a new airline, has the fastest average boarding times according to a study. Identify potential factors that could have biased this result and explain what you would investigate further.

• How would you design an A/B test to evaluate a pricing increase for a B2B SAAS company? A B2B SAAS company wants to test different subscription pricing levels. Design a two-week-long A/B test to evaluate a pricing increase and determine if it is a good business decision.

• How much should we budget for a $5 coupon initiative in a ride-sharing app? A ride-sharing app has a probability (p) of dispensing a $5 coupon to a rider and services (N) riders. Calculate the total budget needed for the coupon initiative.

• What is the probability of both or only one rider getting a coupon? A driver using the app picks up two passengers. Determine the probability of both riders getting the coupon and the probability that only one of them will get the coupon.

• What is a confidence interval for a statistic and why is it useful? Explain what a confidence interval is, why it is useful to know the confidence interval for a statistic, and how to calculate it.

• What is the probability that item X is found on Amazon's website? Amazon has a warehouse system where items are located at different distribution centers. Given the probabilities that item X is available at warehouse A (0.6) and warehouse B (0.8), calculate the probability that item X would be found on Amazon's website.

• Is a coin that lands tails 8 times out of 10 fair? You flip a coin 10 times, and it comes up tails 8 times and heads twice. Determine if this is a fair coin.

• What are time series models and why are they needed? Describe what time series models are and explain why they are necessary when less complicated regression models are available.

• How would you justify the complexity of building a neural network model and explain predictions to non-technical stakeholders? Your manager asks you to build a neural network model to solve a business problem. How would you justify the complexity of the model and explain its predictions to non-technical stakeholders?

• How would you evaluate and deploy a decision tree model for predicting loan repayment? You are tasked with building a decision tree model to predict if a borrower will repay a personal loan. How would you evaluate if a decision tree is the correct model? If you proceed, how would you evaluate its performance before and after deployment?

• How does random forest generate the forest, and why use it over logistic regression? Explain how random forest generates its forest. Additionally, why would you choose random forest over other algorithms like logistic regression?

• How would you explain linear regression to a child, a first-year college student, and a seasoned mathematician? Explain the concept of linear regression to three different audiences: a child, a first-year college student, and a seasoned mathematician. Tailor your explanations to each audience's understanding level.

• What are the key differences between classification models and regression models? Describe the main differences between classification models and regression models.

What is the average salary for a Data Engineer at Sri Tech Solutions Inc.?

Q: What is the primary role of a Data Engineer at Sri Tech Solutions Inc.? The primary role of a Data Engineer at Sri Tech Solutions Inc. is to design, develop, and manage scalable data pipelines using Azure Data Factory, Azure Databricks (PySpark or Scala), and SQL. You will work on data ingestion from on-prem sources such as mainframes and various databases and ensure seamless data flow and integration in a cloud environment.

Q: What specific skills are required for the Azure Data Engineer position? Candidates must have at least 8 years of experience and proficiency in Azure Data Factory, Azure Databricks (Spark), SQL, Sqoop/Hadoop, and programming languages like Python, Scala, or Java. Additionally, experience with source-code versioning tools like Git, orchestration tools such as Autosys/Oozie, and handling metadata files in Excel is essential.

Q: Are there any nice-to-have skills for this role? Yes, having experience with mainframe files, working in an Agile environment using tools like JIRA/Confluence, and holding additional certifications in Azure/AWS/GCP can be advantageous.

Q: How can I prepare for an interview for this position? To prepare for an interview at Sri Tech Solutions Inc., familiarize yourself with all the required technical skills, including Azure-related services and SQL. Practice problem-solving questions and scenarios related to data engineering and cloud environments. Using Interview Query can also provide you with practice questions and insights specific to data engineering roles.

Q: What kind of projects will I work on as a Data Engineer at Sri Tech Solutions Inc.? You will work on a variety of projects involving cloud data ingestion, transformation, and orchestration. This can include migrating data from on-premises sources like SQL Server and Oracle to Azure, creating and optimizing data workflows with Azure Databricks, managing source-code versioning, and using tools like Git and Jenkins for continuous integration and deployment.

Sri Tech Solutions Inc. is offering a promising opportunity for experienced Azure Data Engineers in Toronto. If you're adept with tools like Azure Data Factory, Azure Databricks, SQL, and have hands-on experience in cloud platforms such as Azure, AWS, or GCP, you're in the right place. Strong programming skills in languages like Python, Scala, or Java are a must, along with solid SQL expertise.

To further elevate your preparations and gain more insights about the company and the interview process, visit our main Sri Tech Solutions Inc. Interview Guide, where we cover numerous potential interview questions. At Interview Query, we empower you with the knowledge, confidence, and strategic guidance you need to conquer every interview challenge.

Good luck with your interview!