- Cricket being a popular sport in India, to stream events like IPL, World Cup, we had to scale up to 150000 cores CPU during demand at Hotstar.
- Manage autoscaling services for hotstar
- Built tooling for seemless deployments

Senior Software Engineer

- Leading migration from EC2 VMs to kubernetes orchestrated containers

- Dynamic configuration management using consul, confd, git2consul

- Plan AWS VPC architecture using Terraform to have secure, cost friendly, environment agnostic infrastructure, integrated with Atlantis to manage provisioning from github comments

- GitOps release pipeline using Argo CD and Drone CI for the platform

- End to end development lifecycle planning on kubernetes, i.e. Secret management, access management, configuration management, build, deployment, monitoring, alerting, logging, everything as IAC and change management in git

- Disaster recovery plan on kubernetes

Site Reliability Engineer

- Responsible for infrastruture of plivo micro-services

- Manage infrastructure as code

- Dockerize services for easy development and slowly migrating legacy services to containers

Senior Engineer

- Manage infrastructure state using Terraform (https://www.terraform.io/)

- Migration of whole infrastructure from EC2 Classic to VPC in AWS. (From late 2013, AWS made default VPC, before that machines use to launch inside EC2 Classic. As VPC has added security advantage, we migrated all components to inside VPC. We defined subnets, security groups, route tables, vpn, application/classic/internal load balancers, private/public hosted zone routing for services.)

- Setup/tune web servers using nginx/uwsgi/apache/mod_wsgi

- Design Highly Available, low latency, fault tolerant Message tracker using cassandra, thrift, haproxy, Apache Zepplin (https://github.com/iamsudip/he-clog)

- Implement autoscaling solution on top of various data sources (rabbitmq, sqs, cloudwatch metrics, product data etc).

- Deployment system using python-fabric

- Configuration management using Saltstack - Infrastructure to manage and monitor SSH access to machines for Hackerearth engineers

- Created a bot to manage processes running on different machines, manage servers, relay AWS alarms etc. If you are lonely talk to it you won't feel bored.

- Manage infrastructure components built on top of rabbitmq, sentry, mongo, redis, sqs, mysql, haproxy, Cassandra etc

- Architect infrastructure components in a linearly scalable way

Infrastructure Engineer

- Web application development using Python/Django

- Built and maintain Hackerearth's Recruit and challenges API.

- Built Hackerearth documentation infrastructure using Python/Django.

- Built low overhead logging infrastructure for distributed machines using Python, Zeromq , in- memory sqlite etc. - Wrote web crawlers for various web services.

Software Engineer

- Have experience on setting up infrastructure from scratch to migrating infrastructure with no service downtime.
- My day job requires maintaining and auditing the security of the existing infrastructure.
- Have experience in scaling, automating, provisioning, securing infrastructure

I have experience building end to end solutions mostly in Python ranging from something as simple as scrapers to rest frameworks, webapps, packages and a lot more.

Working at a Django based startup, I have experience writing clean, generic, scalable and extensible code, and enforcing good design.

Git being the only version control system I have ever used, I know my way around the command line and use it on almost every one of my projects.

Managed large kubernetes clusters of 500+ nodes and 15000+ cpu cores

Managed 10+ clusters on production, ranging from 50-100 nodes each

- Built platform tools like CLIs to manage infrastructure 
- Built autoscaling services
- Built kubernetes operator, custom mutation webhook controller etc.

Generalist Programmer with extensive experience in infrastructure management, research and development

Sudip Maji

Hackerearth's submission evaluation involves lots of message passing. This service allows us to track down messages realtime.

Personal details

Sudip M.

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