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Prakash Reddy Putta

Staff Data Engineer & Software Engineer; Meta & Instacart

4.889 years242 sessions

Experience

  1. Senior Software Engineer

    Meta · 2 years 8 months

  2. Senior Data Engineer

    Meta · 2 years 8 months

Reviews 162

great!

OpenAI · Support Engineer

Thanks for the mock session on code interview. Gave me a good idea of where I need to focus on.

Data Engineer

Thanks for the mock and the feedback. Very helpful.

Data Engineer

Thanks for the interview session/sessions. I feel more prepared for the upcoming interviews.

DE

Thanks for the helpful prep session. 1) Product sense: Need to focus more on the entity in question 2) Data modeling section: Need to practice clarifying entities and then how they are modeled

DE

Hi Ash, Thanks again for today — this was really helpful in clarifying the structure and expectations for the Meta DE full loop. I especially appreciated the breakdown of product sense, data modeling (star schema focus), and how SQL questions are structured with layered conditions. My main takeaway is that I need to go deeper on data modeling and product sense framing, while tightening up clean, production-style SQL. I’m going to spend the next couple of days focused on those areas. I’d love to schedule a mock session next where we run a full simulation and get candid feedback on any improvements. I sent over a few time options. Thanks again — looking forward to the next session.

DE

Cost is high for 1 hour More constructive feedback could be given during interview

Roblox · Senior EM

Thanks for the session, I've learned a lot.

Meta · Data Engineer

Thanks again, I appreciated your feedbacks.

Meta · Data Engineer

Incredibly helpful and realistic interview. Offered plenty of actionable feedback and sincere advice, would highly recommend!

AI Startup · Senior Data Engineer

Thanks! This was very helpful. I appreciated how you tailored the question and mock to my specific situation and offered a lot of tips for improvement!

AI Startup · Senior Data Engineer

Good mock interview with realistic questions and specific, actionable feedback.

Meta · Data Engineer

Thanks *******, for the session! Will definitely work more on the SQL and book mock interviews after clearing the first round (finger crossed!) 

Meta · Data Engineer

super helpful thank you! good feedback on mock interview and helpful tips on areas where I'm weak

Meta · Data Engineer

Thank you for the well prepared mock interview problems and detailed feedbacks! I will schedule 2 or 3 more Tech and BQ sessions.

Meta · DE

Thank you. This was a very valuable session.

Instacart · Staff Software Engineer

Easy to schedule and professional

Meta · SWE

The coach is experienced and asked relevant questions, and hinted at the right time so candidate can focus on the right question.

OpenAI · Senior Software Engineer

Clearly, I was challenged by a couple of the more obscure problems from Meta's catalogue...which definitely put me in an uncomfortable path.  However, the insights from that call spurred me to take my own preparation in a different direction, so overall, it was pretty effective.

Meta · SWE

Hi *******, thanks for your help! This was super helpful and gave solid perspective on what to expect. Appreciate the pointers regarding time.

Meta · DE

cool coach

Meta · Senior Data Engineer

The mock gave me good insight into how an interviewer judges a data modeling round, and what kind of signals are they really looking for.

Notion · DE

I was a bit nervous because it was my first time doing a DE interview in the new format. Thank you so much for guiding me!!

Meta · Senior Data Engineer

the service is easy to schedule and very helpful

Meta · DE

I enjoyed my mock interview with you. I'm looking forward to the feedback report on my performance.

Meta · SWE

Thank you for the grilling questions

Meta · Data Engineer

Thanks

Meta · Data Engineer

Thanks for your advice and feedback. I will probably schedule a session on behavioural rounds and product sense rounds in the future Excellent selection of coaches and very useful

Meta · Data Engineer

I think mock interview with experts that have experience at your target are very vaulable.

Meta · Data Engineer

Super helpful session for taking prep. Coach was very professional and helpful. 

Meta · DE

Thank you for all your valuable advice Very useful mock session!

Meta · Senior Software Engineer

Great session. I would likely recommend Prepfully along with other services. Prepfully has a good price point compared to the competition. 

Meta · SWE

Thanks *******, appreciate the advice and suggestions on interview prep, and the road to staff engineer. The suggestions on the best books and resources was an eye opener. Definitely would be getting these books and start reading, thanks again. Amazing coach, has a plethora of knowledge. Great engineering insights, and advice on what to read, how to become a better engineer, and path forward, talked about interview insights, best resources to level up, practice techniques etc

Meta, Google, Microsoft, FAANG · SWE

Thanks for all your feedback. It was really helpful! I will definitely re-book another soon. Thanks. All interviewer that I met is really kind and skillful.

Meta · Data Engineer

Coach chose a good problem and good time box to go through for the round. Feedback was helpeful

Meta · Senior Software Engineer

Quality coach

Hedge Fund · Data Engineer

Thank you for the session! You have certainly increased my confidence going in to the behavioral portion. I may reach out for more sessions. Thanks again Excellent session for behavioral prep. Coach provided specific and useful feedback.

Meta · Data Engineer

Thank you so much for the targeted Feedback and advice. Session went amazing and I learned a lot. I got a lot of targeted feedback and advice that identified my strengths and weaknesses, and steps to take to improve. 

Netflix, Amazon · DE

Great feedback specific to the role and level I am interviewing for. Good behavioral prep at a good price point.

Meta · SWE

Thank you so much! I definitely feel like I learned a lot and it will definitely help me with my system design not just in Instacart but other companies. Also, I appreciate you answering all my questions and staying a little bit over. Once again, thank you so much. 

Instacart · Senior Software Engineer

Felt like a real interview experience. 

Meta · DE

Prepfully is a one-of-a-kind platform for practicing mock interviews for Data Engineers. The coaches seems to be experts in their fields and are aware of what they are doing. Great experience so far. 

Meta · DE

Great platform!

Square · Staff Software Engineer

Good platform, slightly string-together (i.e. using zoom, other stuff) but good pricing and useful information.

Instacart · Software Engineer

It was great, coach had excellent knowledge. Only feedback would be coach can turn on the camera and share screen, it builds connect and easier to understand. 

Facebook Meta · SWE

Good experience overall, no dark patterns, it’s really helpful.

Instacart · SWE

Thank you for the session and staying a bit over time.  Good platform, knowledgeable coach.

Instacart · Software Engineer

Excellent Practice! 

Meta · DE

Thanks for your honest feedback! Great session! I felt it like a real interview. The coach was very friendly and gave very useful feedback. 

Meta · MLE

Thanks for the session! There were some great learnings from the feedback that you shared. Best part is - more affordable than other platforms but offers the similar quality

Meta · SWE

Excellent practice!

Meta · DE

Hey coach, thanks again for taking out the time and conducting a system design mock session. Also thanks for the great feedback on improvements to make. I will try and implement them with whatever time I have remaining. Please let me know if there is any other improvement I could make apart from what we discussed that might help me out  The session was amazing. Learnt a lot. Felt like a real interview, it let me know about my improvement points and also a few tips on how to best approach a problem

Meta · SWE

Coach gave real time valuable feedback 

Meta · SWE

good

SWE

Thank you so much for your pin pointed feedback. This was the best mock interview I ever took. Also thanks so much for spending extra time with me despite we ran out of time  The behavioral mock was really worth it. One of the best mock interviews that i ever took. Reasons are below:  1. Coach even before began understood the job role and learned about other interview rounds in the onsite to asses what might be asked  2. Interview felt real and he could exactly pin point areas where I felt uncomfortable answering tough questions. He also gave feedback about the desired signals and tips to answer the question  3. His tips on how to raise the bar in the answers were invaluable  4. Coach was not in a hurry to end the session. He also spent extra 5-7 mins after we ran out of time

Instacart · SWE

Thanks *******, I really enjoyed the mock interview, I appreciate the feedback as well. It was nice to understand the time constraints of Meta interview, and how to proceed.  The interview was exactly how a real one would be structured, thoroughly enjoyed the process, feedback. The interviewer also provided hints appropriately and also communicated very well. Overall would definitely recommend these mock interviews

Meta · SWE

It’s amazing 

Meta · Software Engineer

it's great!

Meta · Software Engineer

Great coach, understood I had already prepared for this question so gave me some pointers on what interviewers might ask as followups.

Facebook · Senior Software Engineer

Easy to use. Great value. Very good coaches

Meta · Staff Software Engineer

I don't have much, in terms of feedback overview. That is how good the overall interview mock process was.

Meta · SWE

My interview was rescheduled because the previous interviewer was a no show, whch wasn't great. This coach was great though! I had a very good experience.

Meta · SWE

Hi, thank you for addressing my questions/concerns. Those are helpful and your feedback gave me a boost to continue trying harder.

SWE

Mock interviews help more than anything to get ready for the real ones.

Meta · Data Engineer

Good experience 

Meta · Software Engineer

Thank you! 

Bain & Company · Staff Data Engineer

i really enjoyed it! the constructive feedback was very helpful

Meta · SWE

Thank you so much for your help and feedback! Extremely useful and helpful. 

Meta · Senior Data Engineer

It was nice talking to you, and thanks for the feedbacks!! It provides an experience of what the real interview, which helps the most to prepare.

Meta · SWE

Thank you ******* for the tips and tricks, and your valuable feedback. I will be focussing on the areas you've asked me to improvise. It was really a great and well-organized session. During the whole mock-up, I thought I was in a real interview and felt a lot of pressure to solve the problems. Plus, after the interview, the coach pinpointed the areas of my strengths/weaknesses and provided a lot of valuable tips and tricks that boosted my confidence.

Meta · DE

I appreciated that you showed my knowledge gaps and dug into the areas where I was weak. I learned about HTAP databases thanks to you.  

Meta · Engineering Manager

Good interview 

Meta · Staff Engineer

I like your platform and it is more cost effective than interviewing.io which is a big plus    

Meta · Engineering Manager

His live feedback was very helpful, and he stayed on past the hour to help me pinpoint specific areas of improvement + identify useful reading materials + topics for new grad SWE roles.

Meta · SWE

I really appreciated the question you asked, candid feedback on how to approach this sort of problems and tips you provided. This exactly what I wanted out of this session. Thank you.

Meta · Staff Engineer

He guided me overall interview process and gave valuable feedback

Meta · DE

Very helpful. Scheduled a repeat session. Thanks. Really useful and high quality feedback.

Meta · Data Engineer

Thanks for the feedback and tips Good interview feedback

DoorDash · EM

This coach knows his topic inside out

SWE

Thanks -- good interview. Thanks also to team, I got help a lot on finding the coach

Meta · DE

Thank you for the great session, it was very helpful.

Meta · DE

Thank you very much, session was really helpful Gives a strong idea about the content of the specific interview that I was preparing for

Meta · DE

Thank you for your detailed feedback. Session was great and it was very useful to me. Coach mimicked actual interview scenario which is helpful for candidates

Stripe · Staff Engineer

Excellent Interviewer , If you want to have a real interview feel and become confident , interview with this person .  Very good cross questioning and instant feedback and guidance.

Meta · Data Engineer

Coach was really knowledgeable

Startup · Data Engineer

This coach is top notch!

Meta · Senior Data Engineer

Thank you very much for all your advices Easy to book with amazing coaches

SWE

Affordable way to simulate real interview setting.

Staff Software Engineer

Thanks, will book another with you

Meta · Senior Data Engineer

It was great talking to *******. He explained the interview process in detail. The mock interview part felt like real interview and learned many new things around product sense for data engineering. 

Facebook Meta · Data Engineering

Friendly and knowledgeable interviewer. Great advice as well and pointers on what to study. Very positive experience!

Wayve · SWE

Thank you for the great interview Prepfully is very helpful and gives you a real life mock interview session without the extra stress and the open feedback is useful to help you improve your skillset

Chan Zuckerberg Initiative · Senior Data Engineer

Excellent guidance, couldn't expect anything better. Thanks for your guidance. Excellent guidance.

Facebook Meta · Data Engineer

Thank you so much, *******!

Meta · Software Engineer

Thanks, that was great practice.  I felt like he did a great job, letting me think on things without rushing. Felt like a real interview. I did have a somewhat hard time hearing him occasionally. And I think even to such a degree that I may have 'missed a point' because I feel like I actually did do a thing he asked for, but, he didn't quite understand me. However, under ideal conditions it would have been a great one. And still was a really good very insightful mock interview.

Meta · Production Engineer

Thank you so much for taking time to interview me. Your suggestions were excellent and I have enjoyed the entire process.  The interview was very helpful and I feel very comfortable in attending the real interview.

Meta · Data Engineering Manager

Thanks! Answered the questions I had as well as identified my flaws in white boarding skills

Blizzard · Software Engineer

*******: Thanks for taking out the time and providing meaningful feedback. It could be cheaper :) 

Senior Software Engineer

It was good to get the mock interview done. It helped me understand what to expect.

Meta · Data Engineering Manager

good prep medium

Meta · Data Engineer

Thanks for taking interview and sharing insights  I like the prompt reply I get from support, and interviewer was also good 

Meta · Senior Data Engineer

This was the most helpful session. Thank you for taking the time to interview me today. Hope to see you at Instacart. :) I did the very first interview, so not a lot of feedback as of now 

Instacart · Senior Software Engineer

Thanks so much for all your help in helping me through ETL examples! I definitely plan to review everything we talked about to better prepare myself. I think the price is a bit steep, but I definitely enjoyed my advice session!

Data Engineer

Less surprises

Meta · Senior Data Engineer

Hello! It was great talking to you, really great to get an insight on Facebook's behavioral focus.  I wasn't sure if you have done Behavioral interviews at Facebook or not. Would love to know. Regards, It was great to get insight from Facebook engineers. Not sure if the expert have done behavioral interviews in the past at Facebook or not.

Facebook · Software Engineer

Thanks for all the suggestions and help On-time, detail,ed and professional

Square · Data Engineer

Good resource

Facebook Meta · Data Engineer

******* was amazing, helped me a lot.

Meta · Data Engineer

******* was amazing, helped me a lot.

Meta · Data Engineer

******* was amazing, well-prepared, and great feedback.

Meta · Data Engineer

Great session, very insightful! Great product

Facebook · Data Engineer

Thanks for the insightful session.

Google · Senior Software Engineer

Thank you for the great session! Really helpful Real-life mocks

Facebook · Data Engineer

Thank you !

Facebook Meta · Data Engineer

Thank you so much for taking the time. Your feedback helps me a lot! The interviewers are experts. The price is lower than other providers. The booking process is easy and quick.

Facebook · Senior Software Engineer

Thanks so much for your time and help! I'm really appreciate! Happy holidays :) 99% close to a real interview, especially for VO. very helpful!

Facebook Meta · Data Engineer

You can feel really confident with the prep

Facebook · Data Engineer

It was great

Facebook · Data Engineer

Thanks for the session. It gave me good insights and tips for the real interview. It helped a me a lot to get prepared. Prepfully really helped me with the mock interviews and to get acquainted with the real interview process.

Facebook · Data Engineer

Thank you for all the help :)

Facebook · Data Engineer

Nice!

Facebook · Software Engineer

Thank you for your feedback and advice on common questions. Wish me luck!! This is my last session before my interview on Thursday! I'm feeling confident, thanks to Prepfully!

Facebook · Data Engineer

Real experts

Facebook · Data Engineer

You are super knowledgeable about the position's interview process and the company's intent to hire. Very communicative and the questions asked were really to the point and not directly leading me to the answer. Follow-up questions are helpful. Felt it like a real interview. Really helpful. The interviewer is super knowledgeable about the position and company that he is interviewing about. Very communicative and the questions asked were really to the point and not directly leading me to the answer. Follow-up questions are helpful. Felt it like a real interview.

Facebook · Data Engineer

The interviewer is well-prepared, and gave me lots of suggestions throughout the interview, pointing out my weakness and perspectives that I need to improve on.

Facebook · Data Engineer

Real experts

Facebook · Data Engineer

Real experts

Facebook · Data Engineer

Thank you for the feedback and encouragement! Please wish me luck :) I pushed back my interview 3 weeks in advance so I could get more time with the experts! I really value your service.

Facebook · Data Engineer

Great to hear from experts

Facebook · Data Engineer

Thanks. I just requested another session for ETL/SQL too Talk to real experts.

Facebook · Data Engineer

Thank you very much! It is very helpful to understand the real interview.

Facebook · Data Engineer

The mock interview seems like the same structure that I will have in the real interview so it was a good experience. The expert was very thorough in his explanations and feedback so it will definitely help me.

Facebook · Data Engineer

Gave very good tips, and suggestions.

Facebook · Data Engineer

Realistic mock interviews.

Facebook · Data Engineer

Thanks a lot for the inputs. It will definitely help me prepare better for the interview. Loved the in-depth discussion after the interview. Cheers.!! Feel free to connect on LinkedIn: *******

Facebook · Software Engineer

Great session

Facebook · Data Engineer

Thank you so much! Really appreciate all advice Really helpful to know what the company is expecting, what interviews are like

Facebook · Data Engineer

Really great experience

Facebook · Data Engineer

I really felt that the mock interview was good preparation for my real interview. The interviewer seemed to really know about the subject and the suggestions were very good.

Facebook · Data Engineer

Really good and useful feedback. Real-life scenario, relevant questions and helps to stay on track.

Facebook · Data Engineer

The service is quite good. It really helped me gain confidence.

Facebook · Software Engineer

Thanks a lot for your time, input, and honest feedback. Helps me realize where I stand and what it takes to design systems that scale. Excellent checkpoint to introspect and identify what skills are required to design systems at this level.

Facebook · Enterprise Engineer

Thanks for the interview!

Facebook · Senior Software Engineer

I liked the interview.

Facebook · Data Engineer

It was very involving and thorough.

Facebook · Data Engineer

Thanks *******! This session was really helpful! I felt like the interviewer really knew a lot about the interview process. He gave me good advice on where I could do better and what I should focus on. I wish I had done this before with other interviews.

Facebook · Data Engineer

Thank you for the input and time I really liked the interview having experts from the same company you are interviewing. It will help you prepare well.

Facebook · Data Engineer

Thanks for the feedback and tips- it's really helpful.

Facebook · Data Engineer

Thanks for sharing the detailed feedback and suggestions at the end - it is super helpful.

Facebook · Data Engineer

It was a good real interview like experience.

Facebook · Data Engineer

Thank you ******* for your feedback and extra time!! You observed my pain points in the interview and focused on how to improve - pausing after question, walking through the analysis with the big data mindset, topics to focus on (partitioning, grouping sets), info on (Why DE@FB), some tips to talk about my interest in the role, ending with a positive note just made my day! I had a great time chatting with you! :) This is my 2nd technical mock interview and I feel pretty confident in my data modeling skills. I was able to improve after working on the feedback in my 1st. The interviewer was very experienced in the role I am interviewing for and was able to give detailed feedback to work on.

Facebook · Data Engineer

Clarity on process and questions. Answered all my questions.

Facebook · Data Engineer

FAQs

How is the time chosen?

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