Comcast Careers

US media and technology conglomerate on Nasdaq (CMCSA) behind Xfinity, NBCUniversal and Sky, with an engineering center in Chennai, India.

comcast.com

About the company

Founded

1963

Headquarters

Comcast Center, Philadelphia, Pennsylvania, USA

Employees

179,000 (2025)

Industry

Telecommunications and media conglomerate

Revenue (FY25)

US$123.7 billion

Market Cap

US$85.05 billion

Listed on

NASDAQ: CMCSA

CEO

Brian L. Roberts (Chairman and Co-CEO)

CFO

Jason S. Armstrong

Legal name

Comcast Corporation

Comcast Corporation is a US media and technology company founded in 1963 and headquartered at the Comcast Center in Philadelphia, Pennsylvania. It operates as a telecommunications and media conglomerate spanning cable television, broadband internet, broadcasting and entertainment, and it owns brands including Xfinity, NBCUniversal and Sky. The company is listed on the Nasdaq stock exchange under the ticker CMCSA.

For fiscal year 2025 Comcast reported revenue of about US$123.7 billion and employed roughly 179,000 people worldwide. Leadership sits with Brian L. Roberts as Chairman and Co-CEO alongside Co-CEO Michael J. Cavanagh, with Jason S. Armstrong serving as Chief Financial Officer and David N. Watson as Vice Chairman.

In India, Comcast runs a technology and engineering center through Comcast India Engineering Center I LLP (LLPIN AAF-7478), incorporated in December 2016 and based at the Chennai One SEZ in Thoraipakkam, Chennai, Tamil Nadu. This India entity is a subsidiary operation and does not separately disclose its own revenue or market value, so those figures apply only to the parent, Comcast Corporation.

Key People

Brian L. Roberts

Chairman and Co-CEO

Michael J. Cavanagh

Co-CEO

Jason S. Armstrong

Chief Financial Officer

David N. Watson

Vice Chairman

Photos

Interview process at Comcast

(3,114 interviews)

Interview experience

7 out of 10 (Favorable)

Interview difficulty

Medium

Interview process length

About a week

Overall experience

PoorExcellent

EasyDifficult

How long the process takes

About a day or two17%

About a week45%

About a month21%

More than one month17%

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Comcast Interview Questions & Answers

Q: Solve the palindrome problem using the most optimal (two-pointer) approach.

A: Set one pointer at the start and one at the end, compare the characters they point to, then move both inward until they meet. It checks a palindrome in O(n) time and O(1) extra space.

Answer by AI

Initialize left at index 0 and right at the last index of the string.
While left is less than right, compare both characters; return false on any mismatch, otherwise move left forward and right backward.
If the loop finishes without a mismatch the string is a palindrome; runtime is O(n) with no extra allocation.

Q: Find the second maximum element in an array.

A: Track two variables, the largest and the second largest, in a single pass. Update them as you scan so you never sort the whole array.

Answer by AI

Set both max1 and max2 to negative infinity before scanning.
For each value, if it beats max1 shift the old max1 into max2 and store the new max1; else if it beats max2 and differs from max1, store it in max2.
One O(n) pass returns the answer and handles duplicates by skipping values equal to the current max.

Q: Discuss different sorting algorithms with their time and space complexity.

A: Cover the common ones by trade-off: bubble, selection and insertion sort at O(n^2), merge sort at O(n log n) with O(n) space, quicksort averaging O(n log n) in place, and heapsort at O(n log n) with O(1) extra space.

Answer by AI

Name the O(n^2) simple sorts (bubble, selection, insertion) and when insertion still wins on small or nearly sorted inputs.
Contrast the O(n log n) sorts: merge sort is stable but needs O(n) space, quicksort is in place but O(n^2) worst case, heapsort is O(1) space but not stable.
Close by picking a default for the context, such as merge sort when stability matters or quicksort when memory is tight.

Q: Write SQL queries using JOINs and inner (sub) queries on employee tables.

A: Show you can join an employee table to a department table on a foreign key, then use a subquery for filters like employees earning above their department average.

Answer by AI

Use INNER JOIN to combine employees with departments on department_id, selecting only the columns you need.
Add a correlated subquery in the WHERE clause, for example salary greater than the average salary of the same department.
Mention when a JOIN reads cleaner than a subquery and when EXISTS or IN is the better fit for existence checks.

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Comcast Salaries in India (Updated 2026)

Software Engineer

Average

₹13,12,141/yr

48 Salaries submitted

Senior Software Engineer

Average

₹13,58,892/yr

14 Salaries submitted

Engineer

Average

₹14,71,172/yr

8 Salaries submitted

DevOps Engineer

Average

₹13,41,639/yr

7 Salaries submitted

Software Test Engineer

Average

₹13,12,186/yr

9 Salaries submitted

Senior Quality Engineer

Average

₹15,55,989/yr

9 Salaries submitted