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: A rich merchant had collected many gold coins. He did not want anybody to know about them. One day his wife asked, "How many gold coins do we have?" After pausing a moment, he replied, "Well! If I divide the coins into two unequal numbers, then 32 times the difference between the two numbers equals the difference between the squares of the two numbers."The wife looked puzzled. Can you help the merchant's wife by finding out how many gold coins they have?
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: Consider a pile of Diamonds on a table. A thief enters and steals 1/2 of the total quantity and then again 2 extra from the remaining. After some time a second thief enters and steals 1/2 of the remaining+2. Then 3rd thief enters and steals 1/2 of the remaining+2. Then 4th thief enters and steals 1/2 of the remaining+2. When the 5th one enters he finds 1 diamond on the table. Find out the total no. of diamonds originally on the table before the 1st thief entered.
Q: There are 3 clans in an island - The Arcs who never lie, the Dons who always lie and the Slons who lie alternately with the truth. Once a tourist meets 2 guides who stress that the other is a Slon. They proceed on a tour and see a sports meet. The first guide says that the prizes have been won in the order Don, Arc, Slon. The other says that, the order is Slon, Don, Arc. (the order need not be exact). To which clan did each of the guides and the players belong? ...
Q: 3 policemen and 3 thieves had to cross a river using a small boat. Only two can use the boat for a trip. All the 3 policemen and only 1 thief knew to ride the boat. If 2 thieves and 1 policeman were left behind they would kill him. But none of them escaped from the policemen. How would they be able to cross the river?
Q: 36 people {a1, a2, ..., a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, ..., {a35, a36}, {a36, a1}. Then size of the smallest set of people such that the res...
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: 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: ABCDE are sisters. Each of them gives 4 gifts and each receives 4 gifts No two sisters give the same combination ( e.g. if A gives 4 gifts to B then no other sisters can give four to other one.)Â (i) B gives four to A.(ii) C gives 3 to E. How much did A,B,C,E give to D?
Q: At 6?o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12?o clock?2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.
Q: The egg vendor calls on his first customer and sells half his eggs and half an egg. To the second customer, he sells half of what he had left and half an egg and to the third customer he sells half of what he had then left and half an egg. By the way he did not break any eggs. In the end three eggs were remaining . How many total eggs he was having ?
Q: Every day a cyclist meets a train at a particular crossing .The road is straight before the crossing and both are travelling in the same direction.Cyclist travels with a speed of 10 kmph.One day the cyclist come late by 25 minutes and meets the train 5 km before the crossing.What is the speed of the train?
Q: A long, long time ago, two Egyptian camel drivers were fighting for the hand of the daughter of the sheik of Abbudzjabbu. The sheik, who liked neither of these men to become the future husband of his daughter, came up with a clever plan: a race would dete
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: If I walk with 30 miles/hr i reach 1 hour before and if i walk with 20 miles/hr i reach 1 hour late. Find the distance between 2 points and the exact time of reaching destination is 11 am then find the speed with which it walks.
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: Jack and his wife went to a party where four other married couples were present. Every person shook hands with everyone he or she was not acquainted with. When the handshaking was over, Jack asked everyone, including his own wife, how many hands they shook?
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)