Mahattam is available for hire

Mahattam Tomar

Verified Expert in Engineering

DevOps Engineer and Software Developer

Location

Melbourne, Victoria, Australia

Toptal Member Since

April 2, 2020

Mahattam is a DevOps consultant and worked with many clients to implement DevOps best practices. He has implemented the continuous integration solutions using Jenkins tool to deploy and keeping infrastructure and configuration as code by using Terraform, Ansible, and Chef tools to make an application to scale and available in reliable fashion 24/7. He has also worked on the serverless framework to deploy a Node.js front end as a static website and AWS lambda functions as a back end.

DevOps Engineer Amazon API Gateway Amazon Web Services (AWS)Git DevOps Amazon S3 (AWS S3)AWS CLI Jenkins Continuous Delivery (CD)New Relic Ansible Terraform AWS CloudFormation Packer Amazon RDS

Portfolio

Attribute Group

Amazon Web Services (AWS), Kubernetes, GitHub, AWS CloudFormation, Packer, Chef...

NBN Co

Serverless, GitHub, AWS CloudFormation, Packer, Ansible, Jenkins...

Xpanxion Int Pvt Ltd

Amazon Web Services (AWS), GitHub, AWS CloudFormation, Packer, Chef, Jenkins...

Experience

Amazon Web Services (AWS) - 11 years DevOps - 8 years Cloud Computing - 7 years CI/CD Pipelines - 7 years AWS Certified Solution Architect - 5 years Ansible - 3 years Packer - 2 years Terraform - 2 years

Availability

Part-time

Preferred Environment

Git, Terraform, Ansible, Linux, Amazon Web Services (AWS)

The most amazing...

...work I've done was DevOps for Fab.com, once at worth over $1 billion, where I was supporting the infrastructure and application for over 10 million users.

Work Experience

Senior and Lead DevOps Engineer (Contract)

2019 - PRESENT

Attribute Group

Designed the architecture on AWS cloud from scratch to accommodate the microservice solution using Kubernetes.
Created the AWS infrastructure as code using Terraform code and integrated it with code build to continuously deploy the infrastructure.
Designed a configuration solution with Ansible to support microservice deployment, i.e., pods, on an EKS cluster.
Migrated a legacy application from the data center to AWS cloud on AppStream 2.0.

Technologies: Amazon Web Services (AWS), Kubernetes, GitHub, AWS CloudFormation, Packer, Chef, Ansible, Jenkins, Terraform, AWS Cloud Computing Services, Site Reliability Engineering (SRE), Amazon WorkSpaces, GitLab CI/CD, GitHub Actions

DevOps Consultant

2017 - 2019

NBN Co

Implemented CI/CD in various applications using Jenkins, which helped provide early feedback to developers for failed builds and React at an early stage.
Used Serverless Framework to deploy the serverless Node.js application on AWS Lambda functions.
Created Ansible playbooks to provision cloud resources on AWS infrastructure.
Implemented environment with all security compliance such as virtual private cloud (VPC) and inbound firewall on AWS cloud for a serverless application.
Managed installation of packages and open-source tools on the Red Hat Enterprise Linux operating system.
Supported production deployment and debugging issues when running Docker services.
Created the infrastructure and configuration as code using Ansible to keep the infrastructure and application hosted on servers in an immutable state.

Technologies: Serverless, GitHub, AWS CloudFormation, Packer, Ansible, Jenkins, Amazon Web Services (AWS), Site Reliability Engineering (SRE), GitLab CI/CD

Associate DevOps Leader

2016 - 2017

Xpanxion Int Pvt Ltd

Analyzed and reviewed the existing infrastructure for cost optimization and reduced AWS costs by 44%.
Made the architecture more reliable by migrating from CloudFormation to Chef, which gave easy infrastructure management.
Evaluated and fixed security loopholes related to security ports and others in the existing infrastructure to make it more secure.
Designed Chef cookbooks to provision infrastructure on AWS and configure multiple applications on AWS cloud.

Technologies: Amazon Web Services (AWS), GitHub, AWS CloudFormation, Packer, Chef, Jenkins, Bamboo, Bash, Ruby, AWS Cloud Computing Services, Site Reliability Engineering (SRE), GitLab CI/CD

Senior Software and DevOps Engineer

2012 - 2016

True Sparrow System

Created reliable high-availability architecture designs for our application code and configuration.
Performed complex activities, including migrating data, installing dependencies, and troubleshooting on Linux.
Assisted in environment setup and automation and streamlined scale-up and scale-out of infrastructure to support around 10 million users.

Technologies: Amazon Web Services (AWS), Graylog, Splunk, New Relic, Linux, GitHub, Packer, Chef, Jenkins, Ruby on Rails (RoR), Ruby, AWS Cloud Computing Services, Site Reliability Engineering (SRE), GitLab CI/CD

Experience

Infrastructure Setup on AWS

https://techcrunch.com/tag/fab-com/

The project involved designing infrastructure and automation to keep the application scalable to support millions of users. Using the Chef configuration management tool, I automated the deployment and infrastructure as code. As a part of DevOps, I implemented a monitoring solution for the application and infrastructure using New Relic. I also implemented continuous integration using Jenkins to integrate the deployment with an automated test suite.

Setting up the Deployment and IaC

https://appreciate.it

Served as the DevOps engineer on this project, creating the entire IaC using Terraform and AWS and automating the application's deployment process using Amazon ECS clusters and AWS Fargate. I built multiple environments to support the application's testing and release cycle and to test and deploy it before the production process.

Infrastructure Setup and Automated Deployment

http://appreciate.it

I built the whole infrastructure on AWS and created a deployment pipeline using the Jenkins tool that was triggered automatically based on commits in GitHub. The application was deployed on ECS with Fargate, and the whole infrastructure was written in Terraform as IaC.

Skills

Tools

AWS ELB, AWS IAM, Amazon CloudWatch, GitHub, Amazon CloudFront CDN, Amazon Virtual Private Cloud (VPC), Terraform, Ansible, Jenkins, AWS CloudFormation, Packer, Git, Amazon EKS, AWS CLI, NGINX, Docker Compose, GitLab CI/CD, Amazon EBS, GitLab, Chef, AWS CodeCommit, Amazon Simple Queue Service (SQS), AWS Simple Notification Service (SNS), Amazon WorkSpaces, Bamboo, Graylog, Splunk, Amazon Elastic Container Service (Amazon ECS), Amazon Elastic Container Registry (ECR)

Paradigms

Continuous Delivery (CD), DevOps, Continuous Integration (CI)

Platforms

Amazon Web Services (AWS), New Relic, Docker, Linux, Amazon EC2, WordPress, AWS Lambda, Kubernetes, AWS Cloud Computing Services, Amazon

Storage

Amazon S3 (AWS S3), Amazon Aurora, MySQL, PostgreSQL

Other

System Administration, AWS Auto Scaling, Load Balancers, DNS Servers, Infrastructure as Code (IaC), AWS Certified Solution Architect, Amazon API Gateway, Deployment, AWS DevOps, DevOps Engineer, Cloud Computing, Site Reliability Engineering (SRE), Amazon Route 53, Amazon RDS, CI/CD Pipelines, Containers, GitHub Actions, Serverless, Solution Architecture

Languages

Bash, SQL, Ruby

Frameworks

Ruby on Rails (RoR)

Education

2003 - 2007

Bachelor of Engineering Degree in Computer Science

University of Pune - Army Institute of Technology - India

Certifications

JUNE 2021 - JUNE 2023

HashiCorp Certified Terraform Associate

HashiCorp

DECEMBER 2018 - DECEMBER 2020

AWS Certified Solutions Architect - Associate

Amazon Web Service