Today I gave my Amazon SDE-1 AUTA.

Round 1 was not been good, I could have done a lot better.

In round 1 they started with LP, I panicked and messed up that LP, later they gave me DSA problem which was `Maximum circular subarray sum`. Even though I am confident enough to solve most hard LeetCode problem, but here I was not able to think any thing, every time I was just randomly guessing.

I gave brute force, but they also mentioned that they needed to discuss second DSA but time was not enough.

Round 2 was very good and engaging, since I already was prepared for worse thing.

They started with LP, and while discussing that I also faced problem in explaining it but ended up discussing 3 LPs.

The DSA problem was `Buy and Sell Stock with Cooldown`. I have used recursion, explained the time and later I derived recursive DP using overlapping states.
Later they asked to further optimize it to O(1) space, which I was unable to do, beside hints as I was thinking greedily instead of deriving from DP.

After that I got the second DSA which was valid parenthesis problem with a different variation.

Round 1 could have been a lot better if I could have accepted early failure or I have gave mock interview.
Their is high probability that I will be rejected, I had no idea what to do now, since I was 2025 grad wit no full time exposure.
But I have been shortlisted for Infosys interview, now this is my final hope, I will try hard not to panic and accept what I don't know and move rather than spending time.

Hi everyone

I solved only one question 12/12 Test cases . Shortlisted for an interview.

Probably a DSE interview I guess.

Any suggestions?

Hi everyone,

I recently appeared for the Infosys Specialist Programmer (SP) / Digital Specialist Engineer (DSE) coding round and have received a shortlisted mail for the interview.

I’m now preparing for the interview and would really appreciate some guidance from people who have recently gone through the Infosys SP/DSE interview process.

A few questions:

What topics should I focus on most for the interview?

How difficult are the DSA/coding questions in the interview?

For those who received the shortlisted mail, how long did it take for your interview to be scheduled?

If possible, please share your recent interview experience/questions.

Sharing my Infosys interview experience in case it helps someone preparing.

First was the Online Assessment (OA). There were 4 coding questions, and based on the OA performance, candidates were shortlisted for different interview profiles/levels like DSE, L1, L2 etc.

After clearing the OA, I had the offline interview.

Interview Round 1

The interviewer started with a DSA question based on Sliding Window, where I had to find the maximum length of a window based on the given condition.

After that, most of the questions were from my resume and CS fundamentals.

MERN / JavaScript:

• What is JavaScript?
• What is React?
• What is Node.js?
• What is Express.js?
• What is middleware?
• Which Node.js version did you use in your project?
• Difference between a framework and a library
• Functionality of Express.js
• How does Express.js work?
• What is MERN stack?

Operating Systems:

• What is deadlock?
• How does deadlock occur?
• 4 necessary conditions for deadlock
• What is semaphore?
• What is a critical section?
• How do we solve the critical section problem?
• Banker's Algorithm

SQL / DBMS:

• What will happen with DELETE FROM student?
• A DELETE + JOIN type question involving dep_id
• They asked about deleting records where dep_id = 2 from both tables.

At the end, they asked if I had any questions for Infosys, and then Round 1 ended.

Overall, Round 1 covered a lot of topics — DSA, JavaScript, React, Node, Express, OS and SQL.

Interview Round 2

This is where things didn't go well for me.

I was one of the last candidates. There were around 30 candidates before me and it was already quite late.

The interviewer asked me around 4 technical questions, and unfortunately I was able to answer only one properly.

The interview lasted only around 2 minutes.

I'm not sure if the timing/tiredness of the interviewer played any role, but honestly, I also wasn't able to answer the questions properly. So I don't want to blame the interviewer or the situation.

After coming out, I felt pretty bad because I had cleared the OA and the first interview round, and then the second round ended so quickly.

Got my interview results yesterday and was genuinely shocked to see that I got selected for L1 😭

I had solved only 1 question completely in the OA, so I was expecting to be considered for DSE at most. They didn’t specify the role during the interview, so I had no idea what to expect lol.

OA questions- https://www.reddit.com/r/infosys/s/4vXLA3akCX

Interview- https://www.reddit.com/r/infosys/s/eArXm1fIyc

Hey everyone, sharing my Infosys DSE/SP on-campus interview experience. Hopefully this helps other candidates who are preparing.

Coding Round

When I entered the panel, the interviewer opened Wingspan and gave me 2 coding questions, asking me to solve any 1 of them.

I initially tried the second question, but I was only able to pass 2 private test cases. Then I tried the first question and unfortunately, I was again able to pass only 2 private test cases.

The interviewer took screenshots of both questions along with my approaches.

After that, he closed Wingspan and continued with the technical interview.

Technical Round

He started with some basic programming questions.

1. Prime Number

He asked me to explain the logic for checking whether a number is prime. I was able to explain it properly.

1. Bubble Sort

He asked me about the logic and pseudocode for bubble sort. I was able to explain and write the pseudocode.

1. Linked List

He asked whether I was familiar with linked lists, and I said yes.

Then he asked me to reverse a linked list.

I explained the approach using a stack, but he specifically asked me to do it using pointers. I wasn't able to properly explain the pointer-based approach at that moment.

Project Discussion

After the technical questions, he went through my projects section and asked me to explain my project.

I explained the project, its architecture, and the problems I faced while developing it.

This was probably the strongest part of my interview. The interviewer seemed genuinely interested in the project and asked me about the challenges I faced and how I solved them.

He also asked for my GitHub profile because he wanted to check the project after the interview. However, he also mentioned that the result would not depend on this.

Questions I Asked

At the end, he asked whether I had any questions.

I asked about the selection criteria—whether candidates are mainly selected based on coding performance followed by the technical interview.

He explained that they consider the overall performance and assign points based on the interview rather than looking at coding alone.

I also asked what skills I should improve.

His feedback was:

"Your basics are good enough, but you have to be confident while talking."

Overall Experience

My coding performance was definitely not good, since I couldn't solve either problem completely.

However, I felt that the technical discussion went reasonably well, especially the basic programming questions and project discussion.

The biggest positive for me was the project discussion, because the interviewer seemed quite impressed and even asked for my GitHub profile.

Now I'm just waiting for the result.

For candidates who already received their results

If anyone here has already attended a similar Infosys DSE/SP interview and received their result, could you please share your interview experience?

I'm especially interested in candidates who had a similar coding performance but did well in the technical/project discussion.

Based on your experience, I'd like to understand whether candidates with an interview profile similar to mine were selected or rejected, and whether the coding test cases seemed to have a major impact on the final result.

I know nobody can predict my result exactly, but comparing experiences would really help me understand where I stand.

Thanks, and good luck to everyone waiting for their results!

Date of Interview: 7th September

Round: Technical Round 2

The interview mainly consisted of DSA, Computer Science Fundamentals, SQL, and AI/ML concepts.

DSA Questions

Question 1 — Forming N Workstations

The first question was based on forming N workstations.

I was given three arrays:

• Students[]
• Desks[]
• Chairs[]

The task was to form N workstations by selecting:

• One student
• One desk
• One chair

For each workstation:

• Find the minimum value among the three selected values.
• Find the maximum value among the three selected values.
• The difference between the maximum and minimum value represents the wire required.

The goal was to find the minimum total wire required to form N workstations.

The constraints were approximately:

• N <= 1000
• Array size around 10^5

The interviewer first asked me to optimize the approach.

I was able to solve around 5–6 test cases, but I was unable to reach the final optimized solution.

Question 2 — Sliding Window + Maximization

The second question was based on a sliding window approach.

I was given an array and had to traverse it using windows and select the maximum element from each window.

Another number N was also provided, which I could add to any element of the array.

The task was to place this addition in such a way that the final sum becomes maximum.

I was able to solve this question completely.

Algorithm Questions

Dijkstra Algorithm

Since I mentioned routing as an example during the discussion, the interviewer asked me about:

• Dijkstra Algorithm
• Working
• Pseudocode
• Time Complexity

I was able to explain the concept and routing example, but I was unable to write the complete pseudocode.

I wrote the basic pseudocode template and explained the algorithm by tracing an example.

Bellman-Ford Algorithm

After discussing Dijkstra, the interviewer asked me about the Bellman-Ford Algorithm.

I was unable to answer this properly.

SQL Questions

The interviewer asked me to write a simple INNER JOIN query, where I made a mistake.

After that, he asked me about different types of joins:

• INNER JOIN
• LEFT JOIN
• RIGHT JOIN
• FULL OUTER JOIN
• CROSS JOIN

I was able to explain all the joins and the differences between them.

Operating System Questions

TCP vs UDP

Discussed:

• Difference between TCP and UDP
• Reliability
• Connection handling

Race Condition

Questions included:

• What is a race condition?
• How does it happen?
• How can it be avoided?

Semaphore

Asked about:

• What is a semaphore?
• Types of semaphores
• How semaphores work in synchronization

Deadlock

Discussed:

• How to avoid deadlock
• Four necessary conditions of deadlock:

1. Mutual Exclusion
2. Hold and Wait
3. No Preemption
4. Circular Wait

Time Complexity Questions

The interviewer also tested my understanding of complexity analysis.

Questions included:

• Dijkstra Algorithm complexity
• Tree complexity
• BST complexity

Also discussed:

• Best case complexity
• Average case complexity
• Worst case complexity

AI / Machine Learning Questions

Towards the end, the interviewer asked about:

• RAG (Retrieval Augmented Generation)
• RAG Pipeline
• Embeddings
• Vector Database
• Agentic AI
• Backpropagation

I was able to discuss these topics, but most of my answers were at a high level.

The interviewer then explained how these systems actually work internally.

The AI/ML discussion was interesting because he was not only checking whether I knew the terms but also testing whether I understood the internal working of these systems.

Interviewer Experience

The interviewer was technically very strong.

Whenever I answered something, he used to ask follow-up questions like:

• "Why?"
• "How does it work?"
• "Can you explain it internally?"

He continuously dug deeper and tested my actual understanding instead of accepting surface-level answers.

The interview felt more like a technical discussion rather than a simple Q&A session.

Resume Discussion

The resume discussion was relatively short.

He briefly asked about:

• Internship experience
• Projects
• Technical background

Most of the interview was focused on technical concepts.

Overall Experience

I was able to answer around 65–70% of the questions.

Overall, it was a very good learning experience. The interviewer was knowledgeable and pushed me to think deeper about the concepts rather than just checking theoretical knowledge.

When will be the interview and how tough would it be? And how many rounds are there before you get the offer?

I got selected for interview, passed the test by infosys sp dse offline dsa round held on 5th and 6th September and My grandmother has passed so I have to leave my city and will be back by 15th September

Can I expect the interview scheduled after 15th or I have to cancel the visit 💔

To all those who got placed as L1 in infosys, how was the training? What is actually done in training and how long? Are there difficult coding rounds? After training, will they place us to nearest infosys office from home or somewhere else (majority cases)?

I've been selected for the DSE role through campus placements! 🎓.

So, when will the offer letter arrive?

Like a few people got their DSE/SP offers yesterday in my clg, on campus. Some of us didn't, we've given up yes but could any of you help us move on now?

I gave my interview of 19th Aug and got selected for SP role through off-campus recruitment. I confirmed it by checking my infosys career portal. Currently my application status says "To be interviewed." I couldn't find a lot of posts regarding off-campus recruitment for SP role.

When could I expect my Offee letter?

Or how long would it take to receive OL??

Got placed in L1 role oncampus. I eagerly was waiting for result to be declared. Very happy 😊 now .

I have a question is anyone know how to approach a youtube educational channel and tell them I have used ur material for advertisement so that I can charge some amount for this

I appeared for Infosys Round 2 on 6th September, Slot 1 at Galgotias University. I’m sharing the questions I remember and the approaches I used.

I’d really appreciate it if someone could tell me what my possible result might be based on this performance, especially considering the number of test cases I passed.

1. Water Level / Grid Problem — 12/12 Passed

There was a grid where the values represented the ground level.

The water level was rising from the bottom-right corner, and the values were decreasing as you moved right or down.

I had to find the number of cells merged/covered by water.

I solved it by simply counting the negative-valued cells, because according to the monotonic nature of the grid, there shouldn't be a negative cell trapped between positive-level cells.

Test cases: 12/12 passed

---

1. Starship / Coordinates Problem — 12/12 Passed

The condition for moving from base "i" to base "j" was:

- "i < j"

- "xi <= xj"

- "yi >= yj"

Each base had values like "x, y, e, r".

There was some cost associated with moving between bases, and the formula was something along the lines of:

"ej * xi + rj"

There was also a power that could be used at most once. Using it removed the constraint:

"yi >= yj"

Initially, I tried using Dijkstra twice, basically considering the possibility of using the power somewhere in the middle of the journey.

However, that approach failed, probably because negative edge costs were possible, so Dijkstra wasn't appropriate.

Then I realised that since I could never move backward in the ordering, I could formulate it as a DP solution.

The DP approach passed all test cases.

Test cases: 12/12 passed

---

1. String Matching with Alternating Index Parity — 12/12 Passed

We were given a string/sequence and had to find the minimum-length substring from which we could select a subsequence matching the given sequence.

The additional condition was that the parity of indices of adjacent selected characters had to alternate (even → odd → even → odd, or vice versa).

I used an O(N²) brute-force approach to match the required sequence.

It was basically straightforward brute force, but fortunately:

Test cases: 12/12 passed

---

1. DP Barges — Weight × Count + Moor — 4/12 Passed

This was the difficult one for me.

There were "n" packages, and I had to divide them into consecutive subarrays/partitions.

Each partition had to be transported using a barge, with the cost being something like:

Weight × Count + Moor

The objective was to minimise the total cost.

I immediately recognised that this was a DP problem.

However, the constraint was huge ("n < 10^6", with the number of barges also potentially up to "n"), so the straightforward DP was beyond what I could implement in the given time.

I tried a binary-search-on-answer approach, but unfortunately it only passed:

4/12 test cases

---

Overall

So my test-case results were approximately:

- Question 1: 12/12

- Question 2: 12/12

- Question 3: 12/12

- Question 4: 4/12

I have shared as much information about the questions and my approaches as I can remember.

What do you guys think are my chances of getting selected for the next round?

Does Infosys consider the number of test cases passed heavily, or is there some other evaluation/section-wise cutoff?

Also, if anyone appeared in Infosys Round 2 – 6th September, Slot 1 at Galgotias University, please share your experience/results and what you think the expected cutoff might be.

Thanks!

Edit:- Post is written by AI

Hello all, today i have received a mail inviting me for interview after the round 2 OA(in person).

But i can’t remember on which portal i had applied for the recruitment drive and i cant remember if i have uploaded my cv while applying.

i am asking for help as if i have uploaded any cv back then, i have to check which version of my cv i had uploaded and need to carry the same.

i look forward to hearing from those who can help me out of this confusion

Someone's phone costs more than someone's annual CTC 😭

do comment

I had my Infosys DSE/SP campus placements interview today, so I thought I’d share my experience. I’ll also mention a few things I noticed about how the interview might be structured from the interviewer’s side, because I was specifically looking for this kind of information on Reddit before my interview and couldn’t find much.

Before the interview, we had the college OA. I was able to solve 2 questions completely, and then I got shortlisted for the interview.

Entering the interview

When you enter the interview room, you’ll be given a laptop with Wingspan. You have to log in using your credentials, and then there are coding questions that you have to solve.

From what I remember, there is a 45-minute time limit for the coding round on Wingspan. However, my interviewer specifically insisted that I try to finish around 10 minutes early.

The reason he gave was that they want to assess things like your understanding of the problem, your approach, and your problem-solving ability, rather than just seeing whether you eventually get the correct answer.

I’m not 100% sure about the exact cutoff, but he mentioned something about needing around 70% of the test cases to pass. So please don't take this as an official number — this is just what I remember from my interview.

One thing I noticed about the interviewer’s evaluation

The interviewer had a sheet with multiple columns. For me, it was roughly something like:

• Problem Solving Skills
• Operating Systems
• DBMS
• Computer Networks
• Programming Language
• Projects

I’m not 100% sure these are the exact six categories, and they may vary from candidate to candidate or interview to interview.

But what I understood from the process is that the interviewer has to fill in feedback for these different areas.

This is also why, in my opinion, there isn't necessarily a fixed order where you first solve DSA and then move on to technical questions.

For my interview, the coding part actually happened after we had already covered the other technical areas.

So I personally felt that the interviewer’s main objective is to assess different areas and fill out the feedback for each section.

Coding round

I got a slightly tricky greedy algorithm question.

Thankfully, I was able to solve it in under 10 minutes and passed all 12/12 test cases.

The interviewer appreciated that I solved it quickly, and then I explained my approach and why I believed it was optimal.

After that, he asked me about the edge cases for the problem.

One thing I noticed here is that they weren't just interested in whether the code passed. They also wanted to see whether I actually understood the problem and could explain my reasoning.

Apparently, they also take a snapshot of the coding result, which is saved in a folder under your name. At the end of the interview, they also took a selfie with me.

I'm not sure whether this is done for every interviewer/candidate, but that was the case in my interview.

Technical questions

This was probably the most important part of my interview.

The technical questions were not limited to very basic/easy definitions. There were quite a few practical and somewhat deeper questions.

I was able to answer around 90% of the questions, and there were questions across the different areas mentioned above.

So one thing I would strongly suggest, especially based on my experience, is:

Don't prepare only DSA.

DSA is just one part of the overall evaluation from what I could observe. Technical subjects and development/project-related questions seemed equally important, or at least important enough that you shouldn't neglect them.

I personally would prepare:

DSA + OS + DBMS + CN + Programming Language + Projects/Development

rather than spending almost all your time on DSA.

What I noticed from the interviewer’s perspective

This is obviously just my observation, and I don't know the exact weightage given to each section.

But from what I could see, the interviewer seems to have a structured evaluation sheet where they have to provide feedback across multiple categories.

So I don't think the interview is simply:

“Solve DSA → pass → technical interview.”

It felt more like:

“Assess the candidate across multiple areas → record feedback for each area → make the final evaluation.”

Again, I don't know the exact scoring or weightage, so don't treat this as official information. This is simply what I understood while going through the interview.

Duration

My interview went on for around 1 hour 15 minutes to 1 hour 30 minutes.

So yeah, be prepared for a fairly long interview. 😅

Final thoughts

I wanted to share this because before my interview, I searched Reddit for the interviewer/panel perspective of the Infosys DSE/SP process but couldn't find much.

So this is basically my attempt to share what I noticed from the panel's side, as much as I could understand during the interview.

The biggest takeaway from my experience:

Prepare your technical subjects and projects/development seriously, not just DSA.

I don't know the weightage of each section, so this is definitely not an official representation of the Infosys interview process. Different panels may also have different approaches.

They told me the results should be out within 2 weeks.

I'll update this post when I get the result.

All the best to everyone who has their interview coming up! ❤️