About zeta global
Company Description
Zeta Global is a data-driven marketing technology company that specializes in providing innovative solutions for customer acquisition, retention, and engagement. Founded in 2007, Zeta Global leverages advanced analytics and artificial intelligence to help brands optimize their marketing strategies and drive measurable business results. The company's work culture emphasizes collaboration, creativity, and continuous learning, fostering an environment where employees are encouraged to innovate and push the boundaries of what's possible. Employees enjoy a dynamic and inclusive workplace, where diverse perspectives are valued and teamwork is a cornerstone of success.
Data Scientist Interview Questions
Q1: What experience do you have with machine learning algorithms?
I have worked extensively with various machine learning algorithms, including linear regression, decision trees, and neural networks. In my previous role, I implemented a predictive modeling project that improved customer segmentation, resulting in a 20% increase in targeted marketing campaign effectiveness.
Q2: How do you handle missing data in a dataset?
I usually handle missing data through various techniques such as imputation, where I fill in missing values based on the mean, median, or mode, or by using predictive modeling to estimate the missing values. Alternatively, if the missing data is substantial, I may consider removing the affected records if it does not significantly impact the analysis.
Q3: Can you explain the difference between supervised and unsupervised learning?
Supervised learning involves training a model on a labeled dataset, where the output is known, allowing the model to learn the relationship between input and output. Unsupervised learning, on the other hand, works with unlabeled data, where the model identifies patterns or groupings within the data without prior knowledge of the outcomes.
Q4: What tools and programming languages are you proficient in for data analysis?
I am proficient in Python and R for data analysis and visualization. I also have experience using SQL for database management and querying, and I am familiar with tools such as Tableau and Power BI for creating interactive dashboards.
Q5: How do you ensure the accuracy of your data analysis?
I ensure the accuracy of my data analysis by performing thorough data cleaning, using multiple validation techniques, cross-referencing with other datasets, and conducting regular peer reviews of my work to catch any potential errors.
Marketing Specialist Interview Questions
Q1: What strategies do you use for digital marketing campaigns?
I utilize a mix of SEO, PPC, content marketing, and social media strategies. I analyze the target audience and tailor campaigns accordingly, using data-driven insights to optimize performance continually.
Q2: How do you measure the success of a marketing campaign?
I measure success through key performance indicators (KPIs) such as conversion rates, click-through rates, return on investment (ROI), and engagement metrics. I also analyze customer feedback and sales data to assess overall campaign effectiveness.
Q3: Can you describe a successful marketing project you led?
I led a cross-channel marketing campaign for a product launch, combining email marketing, social media ads, and influencer partnerships. This resulted in a 50% increase in product awareness and a 30% boost in sales within the first month.
Q4: What tools do you use for marketing analytics?
I regularly use Google Analytics for tracking website performance, HubSpot for managing inbound marketing campaigns, and social media analytics tools to analyze engagement and reach on various platforms.
Q5: How do you stay updated with the latest marketing trends?
I stay updated by following industry blogs, attending webinars and conferences, participating in online marketing communities, and continually seeking professional development opportunities through courses and certifications.
Software Engineer Interview Questions
Q1: What programming languages are you proficient in and what projects have you completed using them?
I am proficient in Java, Python, and JavaScript. Recently, I developed a web application using Python and JavaScript, which streamlined internal processes and improved efficiency by 25%.
Q2: Describe your experience with version control systems.
I have extensive experience using Git for version control. I use it for managing code changes, collaborating with team members, and maintaining project history, ensuring that our codebase remains organized and easy to work with.
Q3: How do you approach problem-solving when faced with a technical challenge?
I approach problem-solving by breaking down the issue into smaller, manageable parts, researching potential solutions, and then testing each solution iteratively. I also collaborate with colleagues for additional perspectives when needed.
Q4: Can you explain the concept of RESTful APIs?
RESTful APIs are application programming interfaces that adhere to Representational State Transfer principles. They use standard HTTP methods such as GET, POST, PUT, and DELETE for communication and allow different systems to interact in a stateless manner.
Q5: What testing frameworks are you familiar with?
I am familiar with Jest and Mocha for JavaScript testing, as well as PyTest for Python. I believe in test-driven development (TDD) to ensure code quality and functionality from the start of the development process.
Data Analyst Interview Questions
Q1: What methods do you use to analyze data?
I use statistical analysis, data visualization, and exploratory data analysis (EDA) techniques. I often employ tools like Excel, SQL, and Python libraries such as Pandas and Matplotlib for data manipulation and visualization.
Q2: How do you ensure data integrity in your analysis?
I ensure data integrity by validating the data sources, applying consistent cleaning procedures, and performing regular audits of the data to identify and correct any discrepancies.
Q3: Can you give an example of how you've used data to influence a business decision?
In my last role, I analyzed customer behavior data, which revealed a significant drop-off in the purchasing process. I presented my findings to the management team, leading to enhancements in the checkout process that resulted in a 15% increase in completed transactions.
Q4: What experience do you have with data visualization tools?
I have experience using Tableau and Power BI to create interactive dashboards that help stakeholders easily understand complex data. I focus on clarity and usability to ensure the visualizations effectively communicate insights.
Q5: Describe a challenging data set you've worked with and how you approached it.
I once worked with a dataset that had numerous inconsistencies and missing values. I approached this challenge by first conducting a thorough exploratory analysis to understand the data structure, and then I applied various cleaning techniques to fill in gaps and standardize formats before proceeding with the analysis.
zeta global Interview Questions and Answers
Updated 21 Feb 2026No interview experiences shared yet.
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Common Interview Questions in zeta global
Q: In a sports contest there were m medals awarded on n successive days (n > 1). 1. On the first day 1 medal and 1/7 of the remaining m - 1 medals were awarded. 2. On the second day 2 medals and 1/7 of the now remaining medals was awarded; and so on.On the nth and last day, the remaining n medals were awarded.How many days did the contest last, and how many medals were awarded altogether?
Q: Suppose a newly-born pair of rabbits, one male, one female, are put in a field. Rabbits are able to mate at the age of one month so that at the end of its second month a female can produce another pair of rabbits. Suppose that our rabbits never die and that the female always produces one new pair (one male, one female) every month from the second month on.
Q: 9 cards are there. You have to arrange them in a 3*3 matrix. Cards are of 4 colors. They are red, yellow, blue and green. Conditions for arrangement: one red card must be in first row or second row. 2 green cards should be in 3rd column. Yellow cards must be in the 3 corners only. Two blue cards must be in the 2nd row. At least one green card in each row.
Q: A rich man died. In his will, he has divided his gold coins among his 5 sons, 5 daughters and a manager. According to his will: First give one coin to manager. 1/5th of the remaining to the elder son.Now give one coin to the manager and 1/5th of the remaining to second son and so on..... After giving coins to 5th son, divided the remaining coins among five daughters equally.All should get full coins. Find the minimum number of coins he has?
Q: There are two balls touching each other circumferencically. The radius of the big ball is 4 times the diameter of the small all. The outer small ball rotates in anticlockwise direction circumferencically over the bigger one at the rate of 16 rev/sec. The bigger wheel also rotates anticlockwise at N rev/sec. What is 'N' for the horizontal line from the centre of small wheel always is horizontal.
Q: T, U, V are 3 friends digging groups in fields. If T & U can complete i groove in 4 days &, U & V can complete 1 groove in 3 days & V & T can complete in 2 days. Find how many days each takes to complete 1 groove individually.
Q: A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once.How would you know which is the switch?
Q: There are 3 sticks placed at right angles to each other and a sphere is placed between the sticks . Now another sphere is placed in the gap between the sticks and Larger sphere . Find the radius of smaller sphere in terms of radius of larger sphere.
Q: In a Park, N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song ? one pair immediately after the other. If the total time taken for singing is 28 minutes, what is N?
Q: Raj has a jewel chest containing Rings, Pins and Ear-rings. The chest contains 26 pieces. Raj has 2 and 1/2 times as many rings as pins, and the number of pairs of earrings is 4 less than the number of rings. How many earrings does Raj have?...
Q: Given a collection of points P in the plane , a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P)....
Q: In a country where everyone wants a boy, each family continues having babies till they have a boy. After some time, what is the proportion of boys to girls in the country? (Assuming probability of having a boy or a girl is the same)
Q: A man driving the car at twice the speed of auto one day he was driven car for 10 min. and car is failed. he left the car and took auto to go to the office .he spent 30 min. in the auto. what will be the time take by car to go office?
Q: Motorboat A leaves shore P as B leaves Q; they move across the lake at a constant speed. They meet first time 600 yards from P. Each returns from the opposite shore without halting, and they meet 200 yards from. How long is the lake?
Q: In mathematics country 1,2,3,4....,8,9 are nine cities. Cities which form a no. that is divisible by 3 are connected by air planes. (e.g. cities 1 & 2 form no. 12 which divisible by 3 then 1 is connected to city 2). Find the total no. of ways you can go to 8 if you are allowed to break the journeys.
Q: Four persons have to cross the bridge they are having one torch light. Four persons take 1,2,5,10 minutes respectively, when two persons are going they will take the time of the slowest person. What is the time taken to cross by all of them.
Q: On a particular day A and B decide that they would either speak the truth or will lie. C asks A whether he is speaking truth or lying? He answers and B listens to what he said. C then asks B what A has said B says "A says that he is a liar"
Q: In a certain year, the number of girls who graduated from City High School was twice the number of boys. If 3/4 of the girls and 5/6 of the boys went to college immediately after graduation, what fraction of the graduates that year went to college immediately after graduation?
Q: Two unemployed young men decided to start a business together. They pooled in their savings, which came to Rs. 2,000. They were both lucky, their business prospered and they were able to increase their capital by 50 per cent every three years. How much did they have in all at the end of eighteen years?
Q: A person gives a book for binding, but the binder cuts the book in such a way that he cutsaway the numbers on the pages. So now the person sits down to write the page numbers.What he observes is that the book had 61 times 3¶s. How many pages does the book contain?
