Securing AWS Access Keys

After a Friday night party, we found out that someone had accidentally put AWS Access Keys in a public repository (thanks to AWS Security Team for reporting this). Keys didn’t have much access and were of a test environment, but this could have happened with any other key pair with…

Supercharging Mobile Backend Development using ngrok & OpenResty

If you are developing mobile applications, it’s likely that you are getting data from a bunch of backend APIs. An API backend is a must if you want to develop for multiple platforms like Android, iOS, web etc While developing such API backend locally, sometimes you need…

CPU Throttling in Kubernetes: A Postmortem

Kubernetes is a crucial part of our infrastructure. We don’t just deploy applications on Kubernetes in production, but we also use it heavily for our CI/CD and developer infrastructure. While developing our CI/CD infrastructure, we dealt with a particular performance issue of our dev and CI environments taking up a…

Is your MVP slowing you down?

Over time, the term Minimum Viable Product (MVP) has started meaning different things to different people. Before I proceed to put my point across, it will be helpful to…

How We Improved Information Security at Grofers

Application Server Optimization

For the past few weeks, I have been working on improving our system. The improvements involve metrics related to latency. In this article, I am sharing some recipes that I found helpful in my work. This article will be Python-Django specific. I think it should be generally…

5 not-so-basic basic guidelines to become a mediocre UX/UI/Product designer.

1. Don’t fall in love with your solutions. Fall in love with the problem. Reference to pop culture. Check. Nothing is written in stone. Especially your…

Making Grocery Shopping Faster on Web

We released Grofers’ web platform about two months back. This post describes a few performance improvements that we have achieved in recent times. Background To bring about more user engagement and open the most straightforward user acquisition channel, we released our web platform to make it possible for…

Get Your Product The Attention It Deserves

Design by Asif Jamal It’s Christmas time. You’re walking down that crowded market street. After having saved money for a long time, you’re now hunting for presents for your loved ones. You have narrowed down your idea of a gift and have decided to get them the best sweaters in town. Your friend tells you of a…

Origins of Data Lake at Grofers

Design by Asif Jamal The Beginning As Data Engineers at the biggest online grocery company in India, one of our major challenges is to democratize data across the organization. But, when we began evaluating how well we were doing on this goal, we realized that frequent errors in our data pipelines had caused our business teams…

A Comprehensive Guide To Deploying A Website In Kubernetes

Recently, we at Grofers took a decision to migrate all our services to Kubernetes. Now during the process of migrating our frontend website to Kubernetes, we realised that the default Rolling Update deployment strategy doesn’t work that well and we had to shift to Blue Green strategy instead (we’ll go…

The birth— Initial Project Setup

Photo by Greg Rosenke on Unsplash This is the second blog of the full Grofers RN blog series. Through this series Grofers attempts to share its journey in integrating React Native into…

Show and Tell S02E01

Launch quickly, inspect closely, iterate rapidly

Grofers Lambda: A 2019 Year-In-Review

The most-read authors, stories, and what’s coming in 2020. In 2019, we increased our focus on Lambda with an aim to share stories that give you an insider look into the tech and people that run Grofers. As a result, 2019 turned out to be an incredible year of learning for all of us at Grofers engineering. Best? our…

How To Decide The Success Metrics For Your Product

Design by Asif Jamal I have repeatedly made this mistake of looking at the wrong metrics for the new products that we released. The realization of these mistakes made me seek mentoring from some of the accomplished product folks. I wish I had reached out for their mentoring even earlier to grow faster. Young…

How My Grofers Internship Came To Be

Design by Asif Jamal In May 2019, I started my internship at Grofers — India’s largest online grocery retailer. I was joining the infrastructure team that has some of India’s smartest and most capable engineers working on problems of scale. Me? It was my first time working in a real, professional environment. I was…

What we have been shipping at Grofers

In March, COVID-19 changed a lot of things for the world. Grofers has been no exception. Unlike many business and economic scenarios that can be estimated or predicted for, COVID-19 stands as a tough exception. What this means for us is that our larger focus for March has been on…

Evolving Continuous Delivery in a Cloud-Native Environment

Building a technology first company

Over the past few years, we have seen rise of tech companies. There are a lot of definitions of what truly is a technology company. There are also different terminologies like “tech driven”, “tech enabled” and “pure tech”. And the debate goes on… At Grofers, our vision is to be…

Reducing AWS data transfer cost: Kubernetes from Multi-AZ to Single-AZ

The only silver lining for us during COVID-19 was that we got a chance to optimize our resources in our run to cut costs — a long-pending activity. All the teams across the organization were focused on reducing the operating costs as much as possible. Similarly, DevOps teams were mainly…

Ansible at Grofers (Part 3) — Managing EC2 Instances

This post is part 3 of the series on how we use Ansible at Grofers to manage our infrastructure. This post explains the issues we faced before we started managing our infrastructure with Ansible, the steps we took to solve all those issues and the infrastructure state we are in…

The Final Call — The good and the bad of React Native

Photo by Tingey Injury Law Firm on Unsplash This blog is part of the Grofers React Native blog series. Through this series we attempt to share the journey of integrating React…

Monitoring Java Web Apps using Prometheus and Grafana

Recently, I have been exploring ways to make systems as monitorable as possible, which means minimizing the number of unknown-unknowns!

Community Update — March 2019 (Gurgaon)

For the Golang track, community member Ishaan Bahal talked about GRPC and its use cases from the ground up…