A Software Engineer at Internet Brands plays a critical role in powering some of the web's most heavily trafficked vertical websites. Operating across diverse sectors such as health, legal, automotive, and home and travel, the engineering team builds, optimizes, and scales platforms that serve millions of unique visitors daily. The solutions you develop directly impact user acquisition, content delivery, and transaction processing across highly recognized digital portfolios. In this role, you are not just writing code; you are managing the performance, stability, and feature sets of high-volume web properties. The work involves a blend of modernizing legacy systems, implementing robust APIs, and optimizing database queries to handle massive concurrent traffic. Because Internet Brands operates on a portfolio model, engineers frequently work on migrations, platform integrations, and scalability challenges that require both deep technical focus and cross-functional adaptability. Success in this position requires a strong grasp of web fundamentals, solid object-oriented design, and a pragmatic approach to problem-solving. Whether you are specializing in enterprise Java systems, high-performance PHP/WordPress environments, or modern JavaScript frameworks, your contributions directly influence business growth and user engagement. You will collaborate closely with product managers, system administrators, and design teams to turn business requirements into highly performant software.
Phone Screening
reportedInitial call with an internal recruiter to discuss your background, career goals, and compensation expectations.
What to demonstrate
- Initial call with an internal recruiter to discuss your background, career goals, and compensation expectations
- Depth in Coding assessments
How to prepare
- Be able to walk your CV end to end in two minutes, and say why this company specifically.
- Have your salary expectations, notice period and location constraints ready, and ask for the rest of the loop in writing.
Online Technical Assessment
reportedTimed assessment featuring coding challenges and multiple-choice questions on web fundamentals and language-specific concepts.
What to demonstrate
- Timed assessment featuring coding challenges and multiple-choice questions on web fundamentals and language-specific concepts
- Depth in Coding assessments
How to prepare
- Answer aloud and timed: Given an array of integers, write a method to count the number of occurrences of a target number.
- Answer aloud and timed: How would you find the first non-repeating character in a given string?
Technical Interviews
reportedOne or more virtual interviews conducted by senior engineers or team leads involving live coding and system design discussions.
What to demonstrate
- One or more virtual interviews conducted by senior engineers or team leads involving live coding and system design discussions
- Depth in Coding assessments
How to prepare
- Answer aloud and timed: Write a program to merge two sorted arrays into a single, sorted array.
- Answer aloud and timed: Explain the core principles of Object-Oriented Programming (OOP) and how you apply them to write maintainable code.
Comprehensive Interview Loop
reportedFinal stage where you meet with engineering managers, directors, or executive leadership to assess behavioral alignment and strategic fit.
What to demonstrate
- Final stage where you meet with engineering managers, directors, or executive leadership to assess behavioral alignment and strategic fit
- Depth in Coding assessments
How to prepare
- Answer aloud and timed: What is the difference between an abstract class and an interface, and when would you use each?
- Answer aloud and timed: Describe the architecture of a RESTful API and how you handle versioning and error states.
PracHub editorial advice for the preparation topics above.
Clarify the Role Stack Early
Because Internet Brands manages a massive portfolio of diverse websites, different teams use vastly different technology stacks. Ensure you know whether your target team focuses on enterprise Java, PHP/WordPress, or modern JavaScript frameworks so you can tailor your preparation accordingly.
Practice Whiteboard and Paper Coding
Some teams still conduct technical rounds where you are asked to write code on a whiteboard, a piece of paper, or a plain text document without syntax highlighting or auto-complete. Practice writing standard algorithms by hand to build confidence.
Prepare Your Project Deep Dives
Be ready to walk through a complex project from your past experience in detail. You should be able to explain the business problem, the technical architecture you chose, the trade-offs you made, and the ultimate impact of your work.
Choose a category, try a prompt, then open its approach, worked solution or follow-up when you need it.
Write a function to reverse a linked list in-place using your preferred programming language.
Write a function to reverse a linked list in-place using your preferred programming language.
Approach
- Restate the input: its shape, its size, and what is guaranteed about it.
- Name the brute-force solution and its complexity before improving on it.
- Choose the data structure from the access pattern, not from familiarity.
- State the target complexity and say which constraint rules the naive version out.
Follow-up
- How does this change if the input no longer fits in memory?
- What is the worst case, and how likely is it on real data?
Implement an algorithm to reverse a string word-by-word (e.g., "the sky is blue" becomes "blue is sky the").
Implement an algorithm to reverse a string word-by-word (e.g., "the sky is blue" becomes "blue is sky the").
Approach
- Restate the input: its shape, its size, and what is guaranteed about it.
- Name the brute-force solution and its complexity before improving on it.
- Choose the data structure from the access pattern, not from familiarity.
- State the target complexity and say which constraint rules the naive version out.
Follow-up
- How does this change if the input no longer fits in memory?
- What is the worst case, and how likely is it on real data?
Given an array of integers, write a method to count the number of occurrences of a target number.
Given an array of integers, write a method to count the number of occurrences of a target number.
Approach
- Restate the input: its shape, its size, and what is guaranteed about it.
- Name the brute-force solution and its complexity before improving on it.
- Choose the data structure from the access pattern, not from familiarity.
- State the target complexity and say which constraint rules the naive version out.
Follow-up
- How does this change if the input no longer fits in memory?
- What is the worst case, and how likely is it on real data?
How would you find the first non-repeating character in a given string?
How would you find the first non-repeating character in a given string?
Approach
- Restate the input: its shape, its size, and what is guaranteed about it.
- Name the brute-force solution and its complexity before improving on it.
- Choose the data structure from the access pattern, not from familiarity.
- State the target complexity and say which constraint rules the naive version out.
Follow-up
- How does this change if the input no longer fits in memory?
- What is the worst case, and how likely is it on real data?
Write a program to merge two sorted arrays into a single, sorted array.
Write a program to merge two sorted arrays into a single, sorted array.
Approach
- Restate the input: its shape, its size, and what is guaranteed about it.
- Name the brute-force solution and its complexity before improving on it.
- Choose the data structure from the access pattern, not from familiarity.
- State the target complexity and say which constraint rules the naive version out.
Follow-up
- How does this change if the input no longer fits in memory?
- What is the worst case, and how likely is it on real data?
Explain the box model in CSS and how asynchronous JavaScript operations interact with the DOM.
Explain the box model in CSS and how asynchronous JavaScript operations interact with the DOM.
Approach
- Say what the runtime actually does before reasoning about the code.
- Name what is shared across threads and what owns each piece of state.
- Identify the window where an invariant is briefly untrue.
- Distinguish a value from a reference to it, and say which one you handed out.
Follow-up
- What happens if two callers reach this at the same time?
- Where could this allocate more than you expect?
How do you optimize slow-running SQL queries in a relational database like MySQL?
How do you optimize slow-running SQL queries in a relational database like MySQL?
Approach
- Name the grain you start from and join outward from it.
- Check whether any join is one-to-many before aggregating, or the sums inflate.
- Say which index the query would use, and what makes it unusable.
- Handle the rows that do not match: that is usually the actual question.
Follow-up
- How does the query change if that join becomes one-to-many?
- What happens to this when the table is ten times larger?
Keep soft-deleted accounts from blocking re-registration
app_user holds user_id, tenant_id, email CITEXT, password_hash (NULL for SSO principals), email_verified_at, auth_version, status ('invited','active','suspended','deactivated'), created_at, updated_at, deleted_at. Two live accounts for one address inside a tenant must be impossible, but an address freed by a soft delete must be reusable, and the same tenant may delete and re-register it repeatedly. Write the uniqueness DDL for PostgreSQL 16, then the equivalent for MySQL 8 where partial indexes do not exist, and say what each permits once three deleted rows already hold that address.
Approach
- Start from what is actually unique: not (tenant_id, email), but (tenant_id, email) among live rows. PostgreSQL says that directly — CREATE UNIQUE INDEX app_user_live_email ON app_user (tenant_id, email) WHERE deleted_at IS NULL. A full constraint over the same two columns burns the address permanently the first time someone deletes an account.
- Keep case-insensitivity in the type or the index, never in the application: CITEXT as given, or UNIQUE (tenant_id, lower(email)) as an expression index where the extension is unavailable. A case-sensitive unique column is exactly how two accounts for one human appear.
- For MySQL 8 the predicate has to move inside the key: add a discriminator column that is a constant 0 while the row is live and is set to user_id on delete, with UNIQUE (tenant_id, email, deleted_marker). Live rows share the constant and still collide; deleted rows differ from each other and stop colliding.
- State the NULL variant and its dependency: leaving the marker NULL for deleted rows also works, because a unique index treats NULLs as distinct — true in MySQL, and true in PostgreSQL only under the default NULLS DISTINCT, which PostgreSQL 15 lets you reverse. Check the polarity against the three existing deleted rows: constant-on-live is what preserves the collision you want, and reversing it silently admits duplicate live accounts.
Follow-up
- A deleted account re-registers with the same address the next day. Do the old resource rows follow the new user_id, and how does the API keep the two principals apart?
- How do you honour an erasure request while resource_revision.actor_user_id still references this table?
Explain the core principles of Object-Oriented Programming (OOP) and how you apply them to write maintainable
Explain the core principles of Object-Oriented Programming (OOP) and how you apply them to write maintainable code.
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
What is the difference between an abstract class and an interface, and when would you use each?
What is the difference between an abstract class and an interface, and when would you use each?
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
Describe the architecture of a RESTful API and how you handle versioning and error states.
Describe the architecture of a RESTful API and how you handle versioning and error states.
Approach
- Say who the caller is and what they do when the call fails halfway.
- Define the identity of a request so a retry cannot double-apply it.
- Separate accepted, pending, failed and confirmed; they are different facts.
- Design the error taxonomy before the success shape; callers branch on it.
Follow-up
- What happens if the caller retries after a timeout?
- How does a client discover it is on an old version of this contract?
Explain how sessions and cookies work in a distributed web environment.
Explain how sessions and cookies work in a distributed web environment.
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
Describe the lifecycle of a request in a PHP framework or a WordPress environment.
Describe the lifecycle of a request in a PHP framework or a WordPress environment.
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
What are the performance implications of using complex plugins or custom theme queries in WordPress, and how d
What are the performance implications of using complex plugins or custom theme queries in WordPress, and how do you mitigate them?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
How would you implement a secure user authentication system from scratch?
How would you implement a secure user authentication system from scratch?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
Exports duplicate a row range about once a week
Roughly once a week an export writes a file containing a duplicated range of rows. The affected job_run rows show attempt = 1, status = succeeded, one started_at, and a lease_owner naming a different host from the one whose logs show the job starting. Leases last 30 seconds and are heartbeated every 10 from inside the handler; lease_expires_at is computed on the worker and compared against the database's now(). Find the mechanism, and give a fix that holds even if you cannot fix the clocks.
Approach
- Start from the fact that eliminates the obvious answer. attempt = 1 means no retry was recorded, so this is not a re-run after failure; two workers ran the same row concurrently and the takeover path never touched the counter. lease_owner naming a host other than the one that started the job is the same statement from the other side.
- Enumerate the mechanisms that cause a premature takeover, then find the signal that separates them. Either the lease genuinely expired because the heartbeat did not fire, which is what happens when the heartbeat runs on the handler's own thread and the handler makes a long blocking call, or it only appeared expired because two clocks disagree, since lease_expires_at is written from the worker's clock and evaluated against the database's. The discriminator is the distribution: incidents clustered on the longest exports indict the heartbeat, incidents clustered on one host indict skew. Measure both, and measure each host's offset against the database directly.
- Read the reclaim query precisely. In PostgreSQL now() is transaction start time, not statement time, so a reclaimer holding a long transaction compares against an older timestamp than expected; clock_timestamp() is the statement-time function. This is worth ruling in or out before you redesign anything, because it changes which rows look expired.
- Remove the second clock rather than trying to synchronise it. Issue and extend the lease in the database, with lease_expires_at = now() + interval '30 seconds' in both the claim and the heartbeat, so exactly one clock is ever compared and worker skew stops mattering to this predicate.
Follow-up
- The displaced worker has already streamed half the file to object storage. What makes that side effect safe to repeat?
- You now count takeovers. What alert fires on that counter, and at what threshold?
Built from the rounds and topics Internet Brands candidates report.
Prepare, practise & reflect
One practical outcome each day. Spend longer where you need it.
0 / 7 done01Map the Internet Brands loop
- Write out the reported sequence: Phone Screening, Online Technical Assessment, Technical Interviews, Comprehensive Interview Loop.
- For each round, write one sentence on what it is judging, from the description above, and mark the one you are least ready for.
Deliverable: A one-page map of the 4 reported rounds, with the weakest marked.
02Work Coding assessments
- Spend the session on Coding assessments, which Internet Brands candidates report being tested on.
- Write one worked example in Coding assessments and time yourself on it.
Deliverable: One timed worked example in Coding assessments.
03Work PHP
- Spend the session on PHP, which Internet Brands candidates report being tested on.
- Write one worked example in PHP and time yourself on it.
Deliverable: One timed worked example in PHP.
04Work Algorithmic problem solving
- Spend the session on Algorithmic problem solving, which Internet Brands candidates report being tested on.
- Write one worked example in Algorithmic problem solving and time yourself on it.
Deliverable: One timed worked example in Algorithmic problem solving.
05Answer out loud: Coding and Algorithm Fundamentals
- Answer aloud, timed: Write a function to reverse a linked list in-place using your preferred programming language.
- Answer aloud, timed: Implement an algorithm to reverse a string word-by-word (e.g., "the sky is blue" becomes "blue is sky the").
Deliverable: Spoken answers to 2 reported Coding and Algorithm Fundamentals question(s), under time.
06Answer out loud: Object-Oriented Programming & Web Architecture
- Answer aloud, timed: Explain the core principles of Object-Oriented Programming (OOP) and how you apply them to write maintainable code.
- Answer aloud, timed: What is the difference between an abstract class and an interface, and when would you use each?
Deliverable: Spoken answers to 2 reported Object-Oriented Programming & Web Architecture question(s), under time.
07Answer out loud: Web Technologies & Platform-Specific Concepts
- Answer aloud, timed: How do you handle dependency injection in a Java environment?
- Answer aloud, timed: Describe the lifecycle of a request in a PHP framework or a WordPress environment.
Deliverable: Spoken answers to 2 reported Web Technologies & Platform-Specific Concepts question(s), under time.
Expand any day for tasks and deliverables. Your progress is saved on this device.
Behavioural rounds judge the decision you made and what it cost.
How do you handle dependency injection in a Java environment?
How do you handle dependency injection in a Java environment?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Describe a time when you had to work on a project with vague requirements. How did you proceed?
Describe a time when you had to work on a project with vague requirements. How did you proceed?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Tell me about a challenging technical bug you encountered in production and how you went about resolving it.
Tell me about a challenging technical bug you encountered in production and how you went about resolving it.
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
How do you handle situations where a project deadline is fast approaching but the scope has suddenly changed?
How do you handle situations where a project deadline is fast approaching but the scope has suddenly changed?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Walk me through a project from your resume that you are particularly proud of, detailing your specific contrib
Walk me through a project from your resume that you are particularly proud of, detailing your specific contributions.
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
How do you manage technical disagreements with other developers or system architects?
How do you manage technical disagreements with other developers or system architects?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
- 01
How do you handle dependency injection in a Java environment?
- 02
Describe a time when you had to work on a project with vague requirements. How did you proceed?
- 03
Tell me about a challenging technical bug you encountered in production and how you went about resolving it.
- 04
How do you handle situations where a project deadline is fast approaching but the scope has suddenly changed?
What is the typical timeline for the interview process?
The entire process generally takes between three to six weeks. This includes the initial recruiter call, the online technical test, and scheduling the final technical and management interviews.
Internet Brands Software Engineer candidate reports ↗What programming languages are preferred during the coding tests?
The online assessments generally support a wide variety of languages, including PHP, Java, JavaScript, Python, C++, and C#. You are highly encouraged to use the language that best aligns with the specific role and team you are interviewing for.
Internet Brands Software Engineer candidate reports ↗How technical are the interviews with executive leadership or VPs?
Interviews with senior directors, VPs, or the CTO tend to focus more on high-level system design, your career history, and situational behavioral questions. However, they may still ask fundamental technical questions to gauge your engineering philosophy and problem-solving approach.
Internet Brands Software Engineer candidate reports ↗What is the working model for engineering teams at the company?
The company operates on a hybrid model for most of its major offices, including El Segundo, CA, and Pleasanton, CA. You should clarify the specific in-office expectations with your recruiter during your initial call, as policies can vary by team and location.
Internet Brands Software Engineer candidate reports ↗What topics does Internet Brands test in interviews?
Internet Brands interviews most often cover SQL, Feature Engineering, SEO (Search Engine Optimization), Stakeholder Communication, and Data-Driven Decision Making. The exact emphasis depends on the specific role you apply for.
Internet Brands Software Engineer candidate reports ↗Sources & methodology 3 sources ↗
No official company page is cited. Rounds and questions come from candidate reports and PracHub editorial material; each source shows the date it was read.
- 01Internet Brands Software Engineer candidate reports ↗
Company-reported rounds, questions and FAQ.
Candidate reports · Accessed 2026-09-22 - 02PracHub Software Engineer practice ↗
PracHub practice material, not company-reported.
PracHub page · Accessed 2026-09-22 - 03PracHub preparation framework ↗
PracHub preparation guidance.
PracHub page · Accessed 2026-09-22
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