Sunil Kumar C

Sunil Kumar C

Mentor
5.0
(88 reviews)
US$15.00
For every 15 mins
125
Sessions/Jobs
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ABOUT ME
Expert in Python, Go, Javascript, Node.js, HTML/CSS
Expert in Python, Go, Javascript, Node.js, HTML/CSS

Nine years of experience in the industry. Expert in Python/Django, Golang, Java, LLD, HLD, and distributed Systems.

English
Kolkata (+05:30)
Joined August 2019
EXPERTISE
8 years experience | 1 endorsement
I have been using Python at work and also in my side projects from the last 8+ years.
I have been using Python at work and also in my side projects from the last 8+ years.
5 years experience
8 years experience
8 years experience | 1 endorsement
I've built a lot of websites, chrome extension using HTML/CSS from past 8+ years.
I've built a lot of websites, chrome extension using HTML/CSS from past 8+ years.
4 years experience
8 years experience
4 years experience

REVIEWS FROM CLIENTS

5.0
(88 reviews)
Anthony Elam
Anthony Elam
August 2023
Thank you Sunil for helping me debug my Golang & GraphQL code.
jssuzuki1
jssuzuki1
August 2023
Sunil was awesome! Would highly recommend!
Patric Noriega
Patric Noriega
March 2022
Great instructor will definitely ask him for help again
K Sachin
K Sachin
March 2021
Great guy, awesome teacher and problem solver
Kevin Kyle
Kevin Kyle
August 2020
Very helpful.
Kevin Kyle
Kevin Kyle
August 2020
Sunil was very patient and helpful when dealing with my issue.
Amarens Jonker
Amarens Jonker
May 2020
Was a great help, took the time to figure out the problem and find a solution.
Robert Baker
Robert Baker
May 2020
He is really helpful on my Python project! Great Experience!
Darragh Martin
Darragh Martin
February 2020
Delighted to have worked with Sunil. We had a few errors along the way but nothing that didn't get solved eventually. Loved working with him and will work with him again in the future. Highly recommend him to anyone that needs help with his area of expertise.
Darragh Martin
Darragh Martin
January 2020
big project Im working on and Sunil helping me achieve what i want done over the last few days. So top work done again.
SOCIAL PRESENCE
EMPLOYMENTS
Lead Software Engineer
PhonePe
2022-08-01-2023-09-01

• Backend Lead at PhonePe, driving impactful initiatives in the Life Insurance sub pod.
• Led a high-performing team of 4 backend ...

• Backend Lead at PhonePe, driving impactful initiatives in the Life Insurance sub pod.
• Led a high-performing team of 4 backend engineers, fostering collaboration and growth.
• Took ownership of Life Insurance team projects, including Limited Pay feature design.
• Successfully implemented innovative functionalities to enhance user experience.
• Optimized funnel conversion via strategic enhancements like HP and L1 widgets.
• Conducted thorough code reviews and mentored junior developers.
• Committed to high-quality code standards and continuous learning.
• Grateful for opportunities at PhonePe, excited to make a tech impact in the future.

Java
Django
Python 3
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Java
Django
Python 3
Dropwizard
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Engineering Lead
Unacademy
2021-05-01-2022-07-01

• I was part of the TEX team where I worked on challenging tasks like improving the overall scale of a critical microservice. I also t...

• I was part of the TEX team where I worked on challenging tasks like improving the overall scale of a critical microservice. I also took care of load testing the service to figure out potential bottlenecks.
• Worked on daily scholarship quiz product.
• Setup loading testing infra setup used across the organization.
• Added question-level metrics useful for learners.
• I’m currently part of a team that worked on Platform: a marketplace-like product where partners can sell their courses on the Unacademy platform.

Django
Node.js
Redis
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Django
Node.js
Redis
Python 3
AWS
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SDE1/SDE2/SDE3
Plivo Communications Pvt Ltd
2018-05-01-2021-04-01

I was part of the payments team in Plivo which builds critical services to manage use cases like Recharge, Auto recharge, and Invoicin...

I was part of the payments team in Plivo which builds critical services to manage use cases like Recharge, Auto recharge, and Invoicing for our customers.

Tech Stack: Golang, AWS, Python / Django, RDS, Redshift, Redis, ECS, Lamda, ElastiCache Global Datastore, Bootstrap / HTML / CSS/ jQuery etc

Below are my accomplishments as part of this role:
• Designed and worked on improving the uptime/availability of one of the critical services in Plivo using a multi-region approach. Brainstormed multiple architectures with the team to finally come up with the best design suitable for the service and the components involved.
• Designed and developed a new microservice called Invoice Service to perform invoicing for our customers. This involved rewriting the complete invoicing logic and designing database tables to store the data in a better and flexible way.
• Account Conversion Invoicing
• Added password history log feature to track last n passwords and allow or reject further password changes based on the stored log
• Designed and developed a new microservice in Python/Django which is responsible for generating Payment Receipts, Invoice PDFs, and Proforma Invoices for our customers.
• Added different minimum commit frequencies feature which enables customers to commit to different minimum commits with Plivo.
• Wiring clean readable code with 90%+ test coverage
• Providing design inputs to juniors and doing code reviews
• Dockerization and deployment of multiple services on AWS using terraform (Infrastructure as Code).
• Dockerization of airflow dags which are responsible to aggregating invoicing data which is used during invoicing.
• Developed a refunds feature using Stripe APIs to avoid direct refunds from Stripe dashboard.
• Changed the complete invoice layout sent from Plivo to our customers.
• Quickbooks integration for postpaid invoicing.
• Resolving production issues frequently.

Python
Django
PostgreSQL
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Python
Django
PostgreSQL
Redis
JavaScript
Amazon Redshift
Airflow
Go
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PROJECTS
Github Feel GoodView Project
2019
Github Feel Good is a chrome extension which helps you feel good about your github profile. The extension increase the count of stars and...
Github Feel Good is a chrome extension which helps you feel good about your github profile. The extension increase the count of stars and forks of all of the pinned repositories, followers, total repositories and enhances the contribution graph based on the mode selected. There are three available modes: Feel Good - Increases the repo count in the range of 100 - 1000. Feel Better - Increases the repo count in the range of 1000 - 10000. Feel like a Rockstar! - Increases the repo count in the range of 10000 - 100000. Forks count and followers count increase in the range of 30 - 70% of the increased stars count.
GitHub
Chrome Extension
JavaScript
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GitHub
Chrome Extension
JavaScript
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Product Hunt CLIView Project
2019
A command line tool to access product hunt's products right from your terminal. Inspired by Team Xenox's Dev.To CLI (https://teamxenox.gi...
A command line tool to access product hunt's products right from your terminal. Inspired by Team Xenox's Dev.To CLI (https://teamxenox.github.io/devtocli/)
Node.js
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Node.js
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