A Step-by-Step Guide to Mastering LeetCode Problems
A Step-by-Step Guide to Mastering LeetCode Problems
1
1
Sagar Jain
Mentor
(39 reviews)
US$25.00
For every 15 mins
80
Sessions/Jobs
ABOUT ME
Senior Staff Engineer | Product Developer | Seasoned Interviewer
Senior Staff Engineer | Product Developer | Seasoned Interviewer
10 years of experience in Software development with a good understanding of Data Structures and Algorithms. Experienced in designing and developing large-scale distributed systems with Java, Spring, and Cloud technologies (Google Cloud Platform or Amazon web services).
I've worked at HP, Amazon, PayPal, and Intercom, gaining extensive experience in conducting coding, problem-solving, and system design interviews throughout my tenure at these companies globally.
I love to solve problems related to programming and explore open-sourced RESTful APIs. Apart from work, I have a good understanding of cybersecurity and have reported major bugs in Uber, Google, Ola, LinkedIn, and Amazon.
English
London (+01:00)
Joined October 2021
EXPERTISE
10 years experience | 1 endorsement
6 years experience | 1 endorsement
8 years experience | 1 endorsement
4 years experience
8 years experience | 3 endorsements
8 years experience
3 years experience
REVIEWS FROM CLIENTS
(39 reviews)
Linyan Tian
April 2024
I'm a beginner and he really took time to make sure I understood the logic of the code and went line by line which I really appreciated
C
February 2024
Sagar is incredibly helpful, insightful, and imbues a level of expertise and professionalism that is rarely found. I look forward to continue working with him, and I would highly recommend Sagar for any data structures, algorithmic, LeetCode, or Java needs, in addition to any FAANG or FAANG adjacent career preparation!
Ritu Babu
February 2024
Sagar was incredibly helpful.He helped fix all the issues I had with my sscript and provided the right solution to my problem.Thank you Sagar
Amelie Astruc
February 2024
fixed ittt
Pete
February 2024
Great coach
Zach Miller
April 2023
Great thanks for help!
Justin Maguire
January 2023
Sagar did a great job helping with some authentication and db design issues that I ran into. Thank you Sagar!
Justin Maguire
December 2022
Sagar lended a hand with a deployment issue related to a Django application, and we discussed model relationships. He was a great help.
Justin Maguire
December 2022
Sagar helped me with the design of a product inventory db schema. As always, he communicated well, listened well, suggested different options, and was conscientious about time. I'm looking forward to working with him again in the near future! Thanks, Sagar!
mudit goel
December 2022
Great tutor
SOCIAL PRESENCE
EMPLOYMENTS
Senior Product Engineer
Intercom
2022-09-01-Present
Building the Engage System at Intercom
Building the Engage System at Intercom
Ruby on Rails
GitHub
Ember.js
View more
Ruby on Rails
GitHub
Ember.js
AWS (Amazon Web Services)
View more
Software Engineer III
PayPal
2020-05-01-2022-08-01
Deploying and Scaling the DALM service to the Cloud. The service extensively leverages Google Cloud Platform
products like Google Big Que...
Deploying and Scaling the DALM service to the Cloud. The service extensively leverages Google Cloud Platform
products like Google Big Query, Dataproc for Spark deployments, Google
cloud storage, and Google PubSub.
Java
Spring MVC
JPA
View more
Java
Spring MVC
JPA
Spring Security
Google Cloud Platform
Spring Boot
Google apis
View more
Software Engineer II
PayPal
2018-07-01-2020-05-01
I am working on Building a next generation Data Pipeline for Data Scientists
and Data Developers. The pipeline allows its users to manage...
I am working on Building a next generation Data Pipeline for Data Scientists
and Data Developers. The pipeline allows its users to manage source code,
run and deploy on stage and promote their code to Production. The
microservice architecture of the pipeline is developed with Java, Spring,
Hibernate JPA, mySQL and a few microservices written in Python, Django
Framework. The service extensively leverages Google Cloud Platform
products like Google Big Query, Dataproc for Spark deployments, Google
cloud storage, and Google PubSub.
Java
Django
MySQL
View more
Java
Django
MySQL
MongoDB
Docker
Google Cloud Platform
Spring Boot
Apache Spark
Apache Kafka
View more
PROJECTS
Kindle Personal Document ServiceView Project
Amazon
2016
Led and contributed to the design, development, testing, and deployment of Kindle Personal Document Services which is a set of ~ 19 micr...
Led and contributed to the design, development, testing, and deployment of Kindle Personal Document Services which is a set of ~ 19 microservices.
Used Java, Python, Spring and Amazon Web Services like SQS, Lambda, and S3.
Implemented rigorous testing processes to maintain code quality.
Created and maintained comprehensive technical documentation.
Adhered to security best practices in software development.
Effectively communicated project status, issues, and resolutions to team members and management.
Accountable for the quality and timely delivery of software solutions.
Java
MySQL
Spring Boot
View more
Java
MySQL
Spring Boot
AWS Lambda
Hibernate ORM
AWS (Amazon Web Services)
View more