Delta Information Systems, Inc. is a forward-thinking technology company specializing in cutting-edge software solutions to drive business innovation. Renowned for its agile and collaborative work environment, Delta Information Systems continues to push the envelope in delivering high-quality, scalable software across various industries.

Joining Delta Information Systems as a Software Engineer places you in a pivotal role within their tech team. You will utilize your coding expertise, problem-solving capabilities, and teamwork skills to create impactful solutions. At Delta, you'll engage in designing, developing, and maintaining robust software applications while collaborating with cross-functional teams.

If you aspire to become a part of Delta's dynamic workforce, this guide on Interview Query is tailored just for you. It will navigate you through the interview process, highlight common software engineering interview questions at Delta Information Systems, and provide invaluable tips. Let’s dive in and get you prepared!

Submitting Your Application

The first step is to submit a compelling application that reflects your technical skills and interest in joining Delta Information Systems, Inc. as a Software Engineer. Whether you were contacted by a Delta Information Systems 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 Delta Information Systems 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 Delta Information Systems hiring manager joins 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 Software Engineer role at Delta Information Systems usually is conducted through virtual means, including video conference and screen sharing. Questions in this 1-hour long interview stage may revolve around your coding skills, problem-solving approach, and familiarity with software development methodologies.

You may be asked to solve coding problems, explain your reasoning, and discuss various approaches to a given problem. This round assesses your ability to write clean, efficient code and think logically.

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 Delta Information Systems office. Your technical prowess, including programming and software engineering capabilities, 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 Software Engineer role at Delta Information Systems.

Quick Tips For Delta Information Systems Software Engineer Interviews

• Understand the company's tech stack: Familiarize yourself with the programming languages, frameworks, and tools that Delta Information Systems uses.
• Prepare for behavioral questions: Be ready to discuss past projects, challenges faced, and how you resolved them, showcasing your problem-solving and teamwork abilities.
• Practice coding problems: Use Interview Query to try as many practice interview questions and mock interviews as possible.

Typically, interviews at Delta Information Systems, Inc. vary by role and team, but commonly Software 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. How would you determine the mouse's location 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. How would you decide which Dashers to select for these deliveries? Would the selection criteria 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. What factors could have biased this result, and what would you investigate?

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

• How much should a ride-sharing app budget for a $5 coupon initiative? 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 riders getting a coupon? A driver using the app picks up two passengers. Determine:

• The probability of both riders getting the coupon.

• 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. In one city, the probabilities that item X is available at warehouse A or B are 0.6 and 0.8, respectively. Calculate the probability that item X would be found on Amazon's website.

• Is a coin fair if it comes up tails 8 times out of 10 flips? 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? 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.

Interested in diving deeper into what it's like to work at Delta Information Systems, Inc. as a Software Engineer? Discover more insights and prepare thoroughly by checking out our main Delta Information Systems Interview Guide. We've compiled numerous interview questions you might face and created comprehensive guides for various positions, including delta-information-systems-software-engineer and data analyst.

At Interview Query, we equip you with a powerful toolkit designed to boost your knowledge, confidence, and strategic approach, setting you up for success in every Delta Information Systems, Inc. software engineer interview.

Explore all our company interview guides to enhance your preparation, and if you have any questions, don't hesitate to reach out to us.

Good luck with your interview!