As a Software Engineer at Infotech, you play a critical role in designing, developing, and maintaining software solutions that drive our core products and services. This position is vital to our mission of delivering innovative technology solutions that enhance user experiences and optimize business processes. Your work will directly impact the efficiency, scalability, and reliability of our applications, contributing to the overall success of the company. At Infotech, you'll engage in a variety of projects that span multiple domains, from developing cutting-edge applications to enhancing existing systems. The complexity and scale of the challenges you face will not only test your technical skills but also allow you to influence product strategy and user engagement. As part of an agile team, you will collaborate closely with cross-functional teams, including product management and UX design, ensuring that we align our technical capabilities with customer needs. You can expect to work in an environment that values innovation and encourages continuous learning. With opportunities to tackle significant technical challenges, your role as a Software Engineer will be both rewarding and dynamic, shaping the future of technology at. Infotech
Phone Screen
reportedInitial call conducted by a recruiter to discuss your background, interests, and motivations.
What to demonstrate
- Initial call conducted by a recruiter to discuss your background, interests, and motivations
- Depth in Technical Interviewing
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 that may include coding challenges, behavioral questions, and discussions about previous work experiences.
What to demonstrate
- One or more interviews that may include coding challenges, behavioral questions, and discussions about previous work experiences
- Depth in Technical Interviewing
How to prepare
- Answer aloud and timed: Describe a time when you optimized a piece of code. What was the outcome?
- Answer aloud and timed: What are the principles of object-oriented programming?
Panel Interview
reportedEngage with various team members in more in-depth discussions if you progress further.
What to demonstrate
- Engage with various team members in more in-depth discussions if you progress further
- Depth in Technical Interviewing
How to prepare
- Answer aloud and timed: Discuss the trade-offs involved in using a relational database vs. a NoSQL database.
- Answer aloud and timed: Tell me about a time when you had to work under pressure.
PracHub editorial advice for the preparation topics above.
Practice Coding
Regularly solve problems on platforms like LeetCode or HackerRank to enhance your coding skills and speed.
Behavioral Interview Prep
Use the STAR method (Situation, Task, Action, Result) to structure your responses for behavioral questions effectively.
Understand Company Values
Familiarize yourself with Infotech’s mission and values; be prepared to discuss how they resonate with you.
Be cautious of overselling yourself during interviews
Authenticity is key to making a genuine connection with your interviewers.
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.
Write a function to reverse a linked list.
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 implement a binary search algorithm?
How would you implement a binary search algorithm?
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?
Solve the problem of finding the longest substring without repeating characters.
Solve the problem of finding the longest substring without repeating characters.
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 how you would handle a stack overflow error.
Explain how you would handle a stack overflow error.
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?
Demonstrate how to merge two sorted arrays.
Demonstrate how to merge two sorted arrays.
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 the update path that detects a concurrent edit
resource carries version INT NOT NULL DEFAULT 1. resource_revision holds revision_id, resource_id, version, actor_user_id, change_kind, patch JSONB, request_id, created_at with UNIQUE (resource_id, version). outbox_event holds aggregate_type, aggregate_id, aggregate_version, event_type, payload, status. A PUT carries the version the client read. Write the exact statements for the single transaction that applies the edit, records the revision and enqueues 'resource.updated', and give the handler's branch on zero affected rows. Then say what PostgreSQL 16 does under READ COMMITTED when two of these updates hit one row at once.
Approach
- One transaction, three writes, no network call inside it: UPDATE resource SET title = $3, version = version + 1, updated_at = now() WHERE resource_id = $1 AND tenant_id = $4 AND version = $2; then INSERT the resource_revision row at version $2 + 1; then INSERT the outbox_event row at the same aggregate_version. The event goes to a table rather than a broker because no transaction spans both.
- Branch on the affected-row count before doing anything else. Zero has three causes — stale version, wrong tenant, row gone — so re-read once and map to 409 carrying the current version, or 404 for an id outside the caller's tenant, which also stops the endpoint confirming that another tenant's id exists.
- State the engine behaviour instead of assuming it. Under READ COMMITTED the second UPDATE blocks on the row lock, and when the first commits PostgreSQL re-evaluates the WHERE clause against the newly committed row, so the version predicate now fails and the statement reports zero rows. Under REPEATABLE READ the identical collision raises SQLSTATE 40001 instead, so the handler must fold both shapes into one conflict response.
- Keep UNIQUE (resource_id, version) even though the predicate already serialises writers. It is what makes a lost update unwritable if any other path ever reaches the revision table, and it converts a logic bug into 23505 rather than into a silently missing history row.
Follow-up
- A client sends the version it read ten minutes ago and the resource has moved three versions. What is in your 409 so it can resolve the conflict without a full re-fetch?
- Two editors, two disjoint fields, no overlap. Does your answer still refuse the second write, and should it?
Replace offset paging on the resource feed with keyset
resource holds resource_id, tenant_id, owner_user_id, title, body_ref, version, status ('draft','active','archived','deleted'), created_at, updated_at, deleted_at, with an index on (tenant_id, status, updated_at DESC, resource_id DESC). The listing endpoint returns active resources for one tenant, newest update first, 50 per page, today with LIMIT 50 OFFSET n. Tenants reach page 400 and rows are created while they read. Write the keyset query, define what the cursor carries and how it is encoded, and say which part of the index each predicate uses. Assume PostgreSQL 16.
Approach
- Name the two failures separately. OFFSET 20000 makes the server produce and discard 20,000 rows, so page cost grows with depth rather than with page size. Independently, any write that changes how many rows sort above the offset moves the window between two fetches, and the direction decides which anomaly you get: an insert lands at the head of updated_at DESC and pushes already-returned rows down past the boundary, so they are returned a second time; a delete above the offset, or a row whose updated_at is bumped above the cursor, pulls rows up and one is never returned at all. Nothing in the response reveals either.
- Write the seek: WHERE tenant_id = $1 AND status = 'active' AND (updated_at, resource_id) < ($2, $3) ORDER BY updated_at DESC, resource_id DESC LIMIT 50. The row-value comparison is one index range rather than a disjunction, and both columns are NOT NULL, which is what makes that comparison well defined.
- Map each predicate onto the index: tenant_id and status are equality on the leading columns, (updated_at, resource_id) is the range, and the ORDER BY matches the index order so no Sort node appears and the scan stops after 50 rows. The DESC in the definition only matters for mixed directions — a plain ascending btree on the same columns is read backwards for this query.
- Put both sort columns in the cursor and nothing the client can tamper with into another tenant: base64 of (updated_at, resource_id), validated server-side, with tenant_id taken from the principal.
Follow-up
- The client asks for 'jump to page 400'. What do you offer instead, and what does the honest version cost?
- Sort order becomes user-selectable across four columns. How many indexes is that, and which would you refuse to add?
Explain the difference between an abstract class and an interface.
Explain the difference between an abstract class and an interface.
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 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?
Discuss the trade-offs involved in using a relational database vs. a NoSQL database.
Discuss the trade-offs involved in using a relational database vs. a NoSQL database.
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 design a scalable notification system?
How would you design a scalable notification system?
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 set of constraints, how would you approach building a new feature?
Given a set of constraints, how would you approach building a new feature?
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?
Walk me through your thought process for a recent complex problem you solved.
Walk me through your thought process for a recent complex problem you solved.
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 metrics would you consider to assess the performance of an application?
What metrics would you consider to assess the performance of an application?
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?
Describe how you would approach refactoring a legacy codebase.
Describe how you would approach refactoring a legacy codebase.
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 do you approach debugging a complex software issue?
How do you approach debugging a complex software issue?
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 Infotech candidates report.
Prepare, practise & reflect
One practical outcome each day. Spend longer where you need it.
0 / 7 done01Map the Infotech loop
- Write out the reported sequence: Phone Screen, Technical Interviews, Panel Interview.
- 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 3 reported rounds, with the weakest marked.
02Work Technical Interviewing
- Spend the session on Technical Interviewing, which Infotech candidates report being tested on.
- Write one worked example in Technical Interviewing and time yourself on it.
Deliverable: One timed worked example in Technical Interviewing.
03Work Behavioral Interviewing
- Spend the session on Behavioral Interviewing, which Infotech candidates report being tested on.
- Write one worked example in Behavioral Interviewing and time yourself on it.
Deliverable: One timed worked example in Behavioral Interviewing.
04Work Data Structures & Algorithms
- Spend the session on Data Structures & Algorithms, which Infotech candidates report being tested on.
- Write one worked example in Data Structures & Algorithms and time yourself on it.
Deliverable: One timed worked example in Data Structures & Algorithms.
05Answer out loud: Technical / Domain Questions
- Answer aloud, timed: Explain the difference between an abstract class and an interface.
- Answer aloud, timed: How do you approach debugging a complex software issue?
Deliverable: Spoken answers to 2 reported Technical / Domain Questions question(s), under time.
06Answer out loud: Behavioral / Leadership
- Answer aloud, timed: Tell me about a time when you had to work under pressure.
- Answer aloud, timed: How do you handle disagreements in a team setting?
Deliverable: Spoken answers to 2 reported Behavioral / Leadership question(s), under time.
07Answer out loud: Problem-Solving / Case Studies
- Answer aloud, timed: How would you design a scalable notification system?
- Answer aloud, timed: Given a set of constraints, how would you approach building a new feature?
Deliverable: Spoken answers to 2 reported Problem-Solving / Case Studies 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 a time when you optimized a piece of code. What was the outcome?
Describe a time when you optimized a piece of code. What was the outcome?
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 time when you had to work under pressure.
Tell me about a time when you had to work under pressure.
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 disagreements in a team setting?
How do you handle disagreements in a team setting?
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 project where you took the initiative to lead.
Describe a project where you took the initiative to lead.
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?
What motivates you to succeed in your work?
What motivates you to succeed in your work?
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 faced with multiple deadlines?
How do you prioritize tasks when faced with multiple deadlines?
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 a time when you optimized a piece of code. What was the outcome?
- 02
Tell me about a time when you had to work under pressure.
- 03
How do you handle disagreements in a team setting?
- 04
Describe a project where you took the initiative to lead.
How difficult are the interviews, and what is the typical preparation time?
The interviews can be moderate to challenging, depending on your experience level. Candidates typically spend several weeks preparing, focusing on both technical skills and behavioral aspects.
Infotech Software Engineer candidate reports ↗What differentiates successful candidates at Infotech?
Successful candidates demonstrate a strong technical foundation, effective communication, and a collaborative mindset. They align well with the company’s values and show a genuine passion for technology.
Infotech Software Engineer candidate reports ↗What is the company culture like at Infotech?
Infotech fosters a culture of innovation, collaboration, and continuous improvement. Employees are encouraged to share ideas and contribute to team success.
Infotech Software Engineer candidate reports ↗What is the typical timeline from initial screen to offer?
The entire process usually spans 2-4 weeks, depending on interview scheduling and candidate availability.
Infotech Software Engineer candidate reports ↗What are the remote work expectations?
Currently, Infotech offers flexible work arrangements, including remote and hybrid options, depending on team needs and individual circumstances.
Infotech Software Engineer candidate reports ↗How many interview rounds does Infotech have for a Software Engineer role?
Infotech interviews typically run through a phone screen, one or more technical interviews, and then a panel interview if you progress further. The flow is recruiter phone screen first, then technical assessments that can include coding, behavioral questions, and project discussion, followed by a panel with team members.
Infotech Software Engineer candidate reports ↗What topics are tested in Infotech Software Engineer coding and technical interviews?
Expect Data Structures & Algorithms, problem solving, and programming fundamentals, with coding puzzles and common algorithm-style questions. The public sample questions include “Merge Two Sorted Arrays” and “Longest Unique Substring in Eno,” and you should also be ready for explanations that cover debugging and fundamental OOP concepts.
Infotech Software Engineer candidate reports ↗What does the Infotech Software Engineer interview loop test besides coding?
Technical interviews can also include behavioral questions and discussions about your previous work experience. You should be prepared to talk through projects, and the guide also highlights evaluation areas like role-related knowledge, problem-solving approach, leadership, and culture fit.
Infotech Software Engineer candidate reports ↗How much does Infotech pay Software Engineers, and does it vary?
I do not have pay numbers for Infotech Software Engineer in the provided information, so I cannot state a verified salary range. If you want, share the level or job posting details you are looking at, and I can help you map it to what is supported here.
Infotech Software Engineer candidate reports ↗What should I prioritize when preparing for Infotech Software Engineer interviews?
Prioritize strong fundamentals for coding puzzles and core algorithms, and practice explaining your approach to problem solving clearly. Also prepare specific behavioral stories that show how you handle pressure, resolve disagreements, and lead or take initiative, since behavioral and leadership themes are part of the process.
Infotech 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.
- 01Infotech 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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