A Software Engineer at Itential plays a crucial role in developing and maintaining the software that powers the company’s innovative solutions in network automation and orchestration. This position is vital to ensuring that Itential's products not only meet the technical requirements of clients but also provide a seamless and efficient user experience. Software Engineers at Itential work on complex problems, contributing directly to the development of scalable and robust systems that support the organization’s mission to simplify network automation. As a Software Engineer, you will be involved in the entire software development lifecycle, from conceptualization and design to implementation and testing. The role often includes collaboration with cross-functional teams, allowing you to impact product features and functionality significantly. Working at Itential, you will engage with cutting-edge technologies and methodologies, ensuring that your contributions drive both business and user satisfaction.
Phone Screen
reportedInitial call assessing communication skills and basic technical knowledge.
What to demonstrate
- Initial call assessing communication skills and basic technical knowledge
- Depth in JavaScript
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.
Technical Interviews
reportedOne or more interviews including coding challenges and system design discussions.
What to demonstrate
- One or more interviews including coding challenges and system design discussions
- Depth in JavaScript
How to prepare
- Answer aloud and timed: Describe your experience with RESTful API design.
- Answer aloud and timed: What are the principles of object-oriented programming?
PracHub editorial advice for the preparation topics above.
Practice Coding Challenges
Regularly solve coding problems on platforms like LeetCode or HackerRank to sharpen your skills and gain confidence.
Understand the Company’s Products
Familiarize yourself with Itential’s offerings and how they solve real-world problems in network automation.
Engage in Behavioral Questions
Prepare to discuss your past experiences and how they align with Itential’s values and culture.
Ask Insightful Questions
Prepare thoughtful questions to ask your interviewers about the company and team dynamics, demonstrating your interest and engagement.
Choose a category, try a prompt, then open its approach, worked solution or follow-up when you need it.
How does asynchronous programming differ from synchronous programming?
How does asynchronous programming differ from synchronous programming?
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?
Write a function to reverse a string in your preferred programming language.
Write a function to reverse a string in 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?
Given an array of integers, find two numbers that sum up to a specific target.
Given an array of integers, find two numbers that sum up to a specific target.
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 difference between SQL and NoSQL databases.
Explain the difference between SQL and NoSQL databases.
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?
What are the principles of object-oriented programming?
What are the principles of object-oriented programming?
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?
Design a URL shortening service. What considerations would you have?
Design a URL shortening service. What considerations would you have?
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?
How would you approach designing a system for real-time data processing?
How would you approach designing a system for real-time data processing?
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?
Can you explain the microservices architecture and its advantages?
Can you explain the microservices architecture and its advantages?
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?
Given a data set, how would you approach analyzing it to derive meaningful insights?
Given a data set, how would you approach analyzing it to derive meaningful insights?
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 troubleshoot a performance issue in a web application?
How would you troubleshoot a performance issue in a web application?
Approach
- Establish what changed and when, before forming any theory.
- Pick a bisection that eliminates candidates whichever way it turns out.
- Check the instrumentation before believing the symptom.
- Separate the trigger from the cause; the deploy is rarely the bug.
Follow-up
- What would you look at first, and what would it rule out?
- How would you tell a cause from a coincidence here?
Built from the rounds and topics Itential candidates report.
Prepare, practise & reflect
One practical outcome each day. Spend longer where you need it.
0 / 7 done01Map the Itential loop
- Write out the reported sequence: Phone Screen, Technical Interviews.
- 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 2 reported rounds, with the weakest marked.
02Work JavaScript
- Spend the session on JavaScript, which Itential candidates report being tested on.
- Write one worked example in JavaScript and time yourself on it.
Deliverable: One timed worked example in JavaScript.
03Work System Design
- Spend the session on System Design, which Itential candidates report being tested on.
- Write one worked example in System Design and time yourself on it.
Deliverable: One timed worked example in System Design.
04Work Python
- Spend the session on Python, which Itential candidates report being tested on.
- Write one worked example in Python and time yourself on it.
Deliverable: One timed worked example in Python.
05Answer out loud: Technical / Domain Questions
- Answer aloud, timed: Explain the difference between SQL and NoSQL databases.
- Answer aloud, timed: How does asynchronous programming differ from synchronous programming?
Deliverable: Spoken answers to 2 reported Technical / Domain Questions question(s), under time.
06Answer out loud: System Design / Architecture
- Answer aloud, timed: Design a URL shortening service. What considerations would you have?
- Answer aloud, timed: How would you approach designing a system for real-time data processing?
Deliverable: Spoken answers to 2 reported System Design / Architecture question(s), under time.
07Answer out loud: Behavioral / Leadership
- Answer aloud, timed: Describe a time you overcame a significant challenge in a project.
- Answer aloud, timed: How do you prioritize tasks when working on multiple projects?
Deliverable: Spoken answers to 2 reported Behavioral / Leadership 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.
Describe your experience with RESTful API design.
Describe your experience with RESTful API design.
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?
Can you discuss your experience with cloud services?
Can you discuss your experience with cloud services?
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 you overcame a significant challenge in a project.
Describe a time you overcame a significant challenge in a project.
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 prioritize tasks when working on multiple projects?
How do you prioritize tasks when working on multiple projects?
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?
Can you give an example of how you’ve worked effectively within a team?
Can you give an example of how you’ve worked effectively within a team?
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
Describe your experience with RESTful API design.
- 02
Can you discuss your experience with cloud services?
- 03
Describe a time you overcame a significant challenge in a project.
- 04
How do you prioritize tasks when working on multiple projects?
What is the interview difficulty and how much preparation time is typical?
The interview process is generally considered average in difficulty, with candidates typically spending 2-4 weeks preparing. Focus on coding practice, system design, and behavioral interview techniques.
Itential Software Engineer candidate reports ↗What differentiates successful candidates?
Successful candidates usually demonstrate strong technical skills, clear communication, and a good cultural fit with the team. Showing enthusiasm for the company’s mission can also make a positive impression.
Itential Software Engineer candidate reports ↗What is the culture and working style at Itential?
Itential fosters a collaborative and innovative environment, encouraging team members to share ideas and work together to solve problems. Communication and teamwork are highly valued.
Itential Software Engineer candidate reports ↗What is the typical timeline from initial screen to offer?
The interview process can take anywhere from a few weeks to a couple of months, depending on the number of candidates and interview schedules.
Itential Software Engineer candidate reports ↗Are there remote work or hybrid expectations?
Itential has embraced flexible work arrangements, which might include remote or hybrid work environments. Be sure to inquire about specific policies during your interview.
Itential Software Engineer candidate reports ↗What topics does Itential test in interviews?
Itential interviews most often cover Network Automation, Problem Solving, SDN (Software-Defined Networking), JavaScript, and QA Engineering. The exact emphasis depends on the specific role you apply for.
Itential 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.
- 01Itential 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
Explore related engineering environments and compare the preparation focus.
Vectra AI Software Engineer Interview Guide
What Vectra AI asks Software Engineer candidates, from reported rounds and questions.
U.S. Bank National Association Software Engineer Interview Guide
What U.S. Bank National Association asks Software Engineer candidates, from reported rounds and questions.
Sony Software Engineer Interview Guide
What Sony asks Software Engineer candidates, from reported rounds and questions.
Raytheon Technologies Corporate Headquarters Software Engineer Interview Guide
What Raytheon Technologies Corporate Headquarters asks Software Engineer candidates, from reported rounds and questions.