Mainak Chakrabarty

• Contributed to architectural decisions, ensuring scalable and maintainable designs for future expansions of application services.
• Implemented comprehensive security measures to safeguard sensitive data and protect against cyber threats.
• Optimized cloud resource usage by analyzing cost metrics and making recommendations for more efficient configurations.
• Streamlined infrastructure management through automation using industry-leading tools such as Python Scripting, Kubernetes, and Terraform.
• Collaborated with cross-functional teams to drive continuous improvement in software delivery process.
• Facilitated knowledge sharing among team members by documenting processes, best practices, and lessons learned from past experiences.
• Mentored junior team members, fostering professional growth and improving overall team performance.
• Developed custom scripts using Python or Bash languages to automate repetitive tasks or integrate disparate systems effectively streamlining workflows across departments.
• Supervised work of programmers, designers and technicians, assigned tasks and monitored performance against targets.
• Created proofs of concept for innovative new solutions.
• Reduced deployment times with introduction of CI/CD pipelines for multiple projects.
• Won SPOT AWARD in 1st 6 months of joining for performance
• Won HACKTHON Competition conducted by company internally (Created website with can log data from server and create metrics which incurs negligible cost

• Participation in delivery of highly available, fault tolerant, high performance and cost optimized architecture on cloud (AWS)solutions evaluating infrastructure requests and proposing cost saving solutions
• Created proofs of concept for innovative new solutions.
• Implemented deployment strategies using container orchestration tools such as Harness which increased efficiency by 30%(metrics used to determine was time and manual efforts)

Application migration onto AWS Cloud

• Experienced in web application design, development, maintenance & support involving all SDLC activities like requirements analysis, design, implementation, reviews, unit testing
• Have written Python scripts core functionalities of application
• Experienced in functional and technical systems analysis & design, system architectural design, presentation, design documentation and presentation
• Used Bitbucket for version control
• Have written terraform modules for provisioning AWS infrastructure
• Selecting appropriate AWS service based on compute, data, or security requirements.
• Experience in using Jenkins for CI/CD
• Good experience in SCRUM process of Agile (Iterative) development methodology.

• Providing architectural solutions to the client on AWS cloud platform
• Responsible for architecting, designing, implementing of cloud based infrastructure and its solutions
• Proficient in AWS services like VPC, EC2, S3, ELB, Autoscaling Groups(ASG), EBS, RDS, IAM, CloudWatch, CloudFront
• Experienced in creating multiple VPC’s and public, private subnets as per requirement and distributed them as groups into various availability zones of the VPC
• Created NAT gateways and instances to allow communication from the private instances to the internet through bastion hosts
• Involved in writing Python for Amazon Lambda to manage some of the AWS services
• Created and configured elastic load balancers and auto scaling groups to distribute the traffic and to have a cost efficient, fault tolerant and highly available environment
• Created S3 buckets in the AWS environment to store files, sometimes which are required to serve static content for a web application
• Used IAM for creating roles, users, groups and also implemented MFA to provide additional security to AWS account and its resources
• Maintained the monitoring and alerting of production and corporate servers using Cloud Watch service
• Created EBS volumes for storing application files for use with EC2 instances whenever they are mounted to them.