Apollo.io

Senior Backend Engineer Interview Experience - New Delhi, Delhi

February 1, 2024

Positive ExperienceNo Offer

Process

Interview is too lengthy.

1st Round is OA.

2nd and 3rd Round are DSA-based questions.

4th and 5th Round are high-level and low-level design questions, plus a few project discussions.

6th Round is the Behavioral round, followed by HR.

Questions

The 1st round is the OA (Online Assessment) round, where two LC Medium/Medium-Hard questions are expected. You need to solve both, running all the test cases.

Both questions should run, and the passing score was 90%. This means if a few of your test cases fail, you can still pass.

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Interview Statistics

The following metrics were computed from 1 interview experience for the Apollo.io Senior Backend Engineer role in New Delhi, Delhi.

Success Rate

0%

Pass Rate

Apollo.io's interview process for their Senior Backend Engineer roles in New Delhi, Delhi is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive100%

Neutral0%

Negative0%

Candidates reported having very good feelings for Apollo.io's Senior Backend Engineer interview process in New Delhi, Delhi.

Apollo.io Work Experiences

Working with good engineers

Senior Backend Engineer • Current Employee

February 9, 2025

Pros: Engineers I work with are very competent, professional, and knowledgeable. Flexible remote work arrangements. Still mostly an engineering-led company; a lot of work is done to increase engineers' efficiency.

Cons: - Time zone issues can cause delays in task coordination. - Late night meetings if you're not aligned to the US time zones. - Task load can be heavy depending on quarter goals. - Compensation is location-based.

Working with good engineers

Senior Backend Engineer • Current Employee

February 9, 2025

Pros: Engineers I work with are very competent, professional, and knowledgeable. Flexible remote work arrangements. Still mostly an engineering-led company; a lot of work is done to increase engineers' efficiency.

Cons: - Time zone issues can cause delays in task coordination. - Late night meetings if you're not aligned to the US time zones. - Task load can be heavy depending on quarter goals. - Compensation is location-based.

Very nice culture and interesting work

Senior Backend Engineer • Former Employee

Bengaluru, Karnataka, India

Pros: Great culture, benefits, and compensation, coupled with interesting problems to solve.

Cons: Collaboration becomes challenging in a remote environment.

Very nice culture and interesting work

Senior Backend Engineer • Former Employee

Bengaluru, Karnataka, India

Pros: Great culture, benefits, and compensation, coupled with interesting problems to solve.

Cons: Collaboration becomes challenging in a remote environment.

Little bit of work pressure, but overall a great place to work

Senior Backend Engineer • Former Employee

Bengaluru, Karnataka, India

February 20, 2024

Pros: 1. Remote. 2. Working hours flexibility.

Cons: 1. Sometimes tight deadlines can be a little stressful. 2. Night calls are a pain since the organization is spread across the globe.

Little bit of work pressure, but overall a great place to work

Senior Backend Engineer • Former Employee

Bengaluru, Karnataka, India

February 20, 2024

Pros: 1. Remote. 2. Working hours flexibility.

Cons: 1. Sometimes tight deadlines can be a little stressful. 2. Night calls are a pain since the organization is spread across the globe.

Working with good engineers

Senior Backend Engineer • Current Employee

February 9, 2025

Pros: Engineers I work with are very competent, professional, and knowledgeable. Flexible remote work arrangements. Still mostly an engineering-led company; a lot of work is done to increase engineers' efficiency.

Cons: - Time zone issues can cause delays in task coordination. - Late night meetings if you're not aligned to the US time zones. - Task load can be heavy depending on quarter goals. - Compensation is location-based.

4.0
Working with good engineers
Senior Backend Engineer • Current Employee
February 9, 2025
Pros: Engineers I work with are very competent, professional, and knowledgeable. Flexible remote work arrangements. Still mostly an engineering-led company; a lot of work is done to increase engineers' efficiency.
Cons: - Time zone issues can cause delays in task coordination. - Late night meetings if you're not aligned to the US time zones. - Task load can be heavy depending on quarter goals. - Compensation is location-based.

Very nice culture and interesting work

Senior Backend Engineer • Former Employee

Bengaluru, Karnataka, India

Pros: Great culture, benefits, and compensation, coupled with interesting problems to solve.

Cons: Collaboration becomes challenging in a remote environment.

5.0
Very nice culture and interesting work
Senior Backend Engineer • Former Employee
Bengaluru, Karnataka, India
June 21, 2024
Pros: Great culture, benefits, and compensation, coupled with interesting problems to solve.
Cons: Collaboration becomes challenging in a remote environment.

Little bit of work pressure, but overall a great place to work

Senior Backend Engineer • Former Employee

Bengaluru, Karnataka, India

February 20, 2024

Pros: 1. Remote. 2. Working hours flexibility.

Cons: 1. Sometimes tight deadlines can be a little stressful. 2. Night calls are a pain since the organization is spread across the globe.

4.0
Little bit of work pressure, but overall a great place to work
Senior Backend Engineer • Former Employee
Bengaluru, Karnataka, India
February 20, 2024
Pros: 1. Remote. 2. Working hours flexibility.
Cons: 1. Sometimes tight deadlines can be a little stressful. 2. Night calls are a pain since the organization is spread across the globe.

Apollo.io Interview Questions

Validate Stack Sequences

Determine if a given sequence of numbers could have been pushed and popped from a stack, resulting in a second given sequence. Essentially, you need to simulate stack operations and validate the pop order.

ArraysStacksTwo Pointers

Evaluate Reverse Polish Notation

Calculate the result of an arithmetic expression given in Reverse Polish Notation (RPN), also known as postfix notation. You'll need to evaluate operations based on the order they appear in the RPN expression.

Subarray Sum Equals K

Determine the total number of continuous subarrays within a given array that sum up to a specific target value, k.

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