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Behavioral
4 years ago
When did you take an unpopular decision
Data ScientistSoftware EngineerTechnical Program ManagerBackend Engineer

Postmates

Deliveroo

Pendo

+6

while reviewing one of the older projects that was currently implemented in the company I noticed that there was no alerting in place if the data pipeline breaks, the data pipeline has never been broken and it never failed for the last 2 years. it was a pipeline where the data would be dropped into an sftp bucket by the customer every hour and then it was moved to an s3 bucket where s3 triggers were implemented to moved the data in to queue. So in case there is an issue with the data not being processed we would only know when the we see a drop in volume. I identified it as a potential issue with the system and worked on a proposal to have monitoring in place so we are notified when there is an error. I worked with the program manager and devised a plan on how to implement the alerting and the time lines as well as the effort that will be needed to implement it. I mapped the impact of not having it to the current goals of the company and then put forward a proposal of implementing the alerts to the business and took their buyins. after getting the buyins I proposed the task to my team and some of the sr devlopers were not too keen on implenting the alerts, I gave the task to some of the Jr devlopers and the alerts were implemented. after the implementation we discovered that for some hrs in a day we werent getting any files so instead of getting 24 files in a day we were getting 20 files a day in an average. This was rectified by talking to the customer and the missing data was solved. but this made the whole team realize the importance of monitoring and alerting. It also bosted the moral of the Jr developers seeing the direct impact they made to the business goals


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4 years ago
Skills
4 years ago
How do you design a research study for a new or concept product that participants may not fully understand?
UX Researcher

Postmates

Mettle

Zalando

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4 years ago
Behavioral
4 years ago
Tell me about a time when you disagreed with your boss
Backend EngineerData Science ManagerML Engineering ManagerEngineering Manager

Postmates

Corning Logo

Corning

DrChrono Logo

DrChrono

+6

I was working on a high stake project with very high visibility from my senior management.

Me and my manager were thinking of can we leverage the quality of the development using help from QA team. He wanted to keep the QA team separate. His point of view was that a separate team would keep clear focus for the team and they would focus on finding more customer facing bugs. I thought that we should have QA embedded in the scrum team as that would help in easier collaboration and quicker bug fixes plus this is a more efficient way. Though I understood his point of view I always believed that in QA embedded inside the scrum team. I went back had a thought to measure the merits and demerits of the proposals. I put down in a slide the merits and demerits of each. Merit from having a separate team, clear focus and better filtering of quality, demerits less collaboration with development team. I then proposed that the QA engineers attend the calls of dev teams but keep a separate QA board for their tasks. This will give clarity of what bugs they find, what test scenarios they create and finally the metrics to measure the bugs reported per development. My boss and I both agreed as it solved the problems of each proposals

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4 years ago
Product DesignWhiteboarding/problem solvingProduct Sense
4 years ago
Could you design a user interface for banks?
Product ManagerUX Designer

Postmates

Andela Logo

Andela

Casper Logo

Casper

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4 years ago
Behavioral
4 years ago
I want to ask you about a time when you failed in your job.
Data ScientistSoftware EngineerTechnical Program ManageriOS Engineer

Postmates

Epic Systems Logo

Epic Systems

Juul Labs Logo

Juul Labs

+1

Situation: I was tasked with building a prototype of our DIGITS app on the Hololens 2, a mixed-reality device. This was new territory for us, and I was excited to explore how our telephony experience could translate to AR.



Task: My goal was to create a working demo that integrated our telephony SDK into the Hololens experience using Unity and C#. I had about two weeks to get something functional enough to evaluate viability.



Action: I dove deep into learning Unity3D and Hololens development from scratch, and spent considerable time trying to bridge our SDK — which was built in C++/C# — with the Hololens platform. Despite my efforts, I couldn’t get reliable communication between Unity and our SDK.



Rather than give up, I pivoted and simplified the approach by porting our existing Windows desktop app into the Hololens environment. This at least allowed for basic app functionality and UI testing. Through further research and prototyping, I discovered a key platform limitation: Hololens did not support background notifications, meaning incoming calls couldn’t be surfaced while another app was in use.



Result: I documented everything, demoed the prototype to my manager, and recommended that we pause development until the Hololens platform evolved. While I didn’t deliver the full solution I set out to build, I learned a ton, clearly communicated risks, and saved the team from investing more time into a blocked path. I see this as a failure in the original goal, but a success in terms of ownership, problem-solving, and protecting resources.



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4 years ago
Behavioral
5 years ago
Tell me about a time when you felt that your manager did not recognize your efforts and contributions to the company.
UX ResearcherFull Stack Software EngineerData ScientistData Analyst

Postmates

Magic Leap Logo

Magic Leap

Proofpoint Logo

Proofpoint

During my tenure at Cisco, I participated in a project where I collaborated with a devops team and testing team to accomplish the resource allocation . At the end of the project, each intern received an evaluation from our direct supervisor. I was surprised to find that my performance rating was lower than I expected, given the contributions I felt I had made.

Task:I wanted to understand the basis for the rating and felt it was important to clarify any discrepancies between my self-assessment and the supervisor’s perception. My goal was to maintain a positive relationship while advocating for the work I had done.

Action:I requested a brief, one-on-one meeting with my supervisor. In that meeting, I calmly listened to their feedback to understand their perspective fully. Then, I shared specific examples of my contributions:

  • How I had taken the lead on documenting the current resource allocation and new resource allocation based on my experience.

  • My involvement in proper resource allocation resulted in 25% reduction of P1 issues due to resource allocation.

  • The additional responsibilities I took on to get all resource approvals and helm script changes went unnoticed.

I also provided the documentation and metrics I’d been tracking to illustrate the impact of my work. By centering the conversation on factual evidence and outcomes, I was able to highlight aspects of my contribution that might have been overlooked initially.

Result:After reviewing these points, my supervisor acknowledged that some of my behind-the-scenes work wasn’t fully visible to them.  we agreed to have more frequent check-ins going forward. This experience taught me the value of proactive communication and documentation, ensuring that both my manager and I have a clear view of my responsibilities and achievements.

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5 years ago
Behavioral
5 years ago
Share a story about a time when you didn't reach a goal.
Frontend EngineerData Engineering ManagerUX DesignerEngineering Manager

Postmates

Chewy Logo

Chewy

SAP Logo

SAP

In my early days as Program Manager, I managed a project for one of our main customers. This project had a very tight schedule and I promised to deliver the first EVT samples in 3 months.

It was my responsibility to ensure everything would be completed on time, and achieve the quality standards defined by the program and inside the budget approved by leadership.

Unfortunately… when I started to deep dive into the project and analyze all the technical details, I realized that it was not possible to get the prototypes ready on time. I missed the deadline by 2 weeks. I felt bad at that time because I failed, so I immediately started to work on a new feasible schedule trying to mitigate the problem. In addition, I arranged a daily opening and closing meeting with the core team to monitor all activities. The root cause of the problem was a delay in some component's delivery and I also ignored one of the Reliability tests defined by Engineering.

So I highlighted the problem to my manager and I shared with him my new plan. I explained the situation to him and I shared the new timeline that I could meet. Then we worked together to commit to the new delivery date. So I learned a lot from that situation, now I’m always adding some buffer to my project schedules and I work more closely with core team members. But the most important learning was, how important is to be honest and raise your hand on time if something goes wrong.

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5 years ago
ML Knowledge
5 years ago
How is collaborative filtering implemented in the field of machine learning?
Machine Learning Engineer

Postmates

Expedia Logo

Expedia

McAfee Logo

McAfee

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5 years ago
Product Case
5 years ago
How would you set up a test to evaluate user reception of a new time estimate range (3-7 min) versus a fixed estimate (5 min), and how would you validate the significance of the results?
Data Scientist

Postmates

DeliveryHero Logo

DeliveryHero

Grab Logo

Grab

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5 years ago
Behavioral
5 years ago
I'd like you to tell me about a time when you had multiple competing priorities. How did you handle this situation?
Full Stack Software EngineerData Science ManagerML Engineering ManagerEngineering Manager

Postmates

Medium Logo

Medium

WeTransfer Logo

WeTransfer

I was working with 5 customers at once, and had to focus on those activities where I could make a difference, make the most impact, that I could not delegate, and where I could balance with other priorities - in order to do that, I measured the priority of the tasks by the cost of delay, in other words, the impact of not doing them at that time. Then, with more clarity about the priorities, I thought which ones I could delegate to other team members, and if that made sense, with the required support and guidance from my side. Working as a team and not trying to get everything done yourself is key in the long term with multiple, competing priorities. Then, organizing my time well in short, focused timeslots for the most important tasks, made a difference.

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5 years ago

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