Sep 2021 – Sep 2022 · 1 yr · Remote

Jul 2018 – Aug 2021 · 3 yrs 1 mo · Kolkata, West Bengal, India · Hybrid

• Created the Platform Engineering team in the organisation responsible for setting up and monitoring platforms for multiple deployments.
• Created an open-source distributed streaming platform using a composition of state-of-the-art BigData components like Hadoop, Spark, Kafka, Redis, Mongo leading to the first Datawarehouse implementation for the organisation. This solution is scaled to process Billion of events per day.
• Created multiple core components like cached-query, unified object-store client, distributed cache, micro-streaming framework, etc which are used across all analytical products in the organisation.
• Created a scalable multi-tenant SaaS IoT platform for managing and monitoring a large number of TR-69 devices (100,000+ per hour). Deployed the IoT platform on AWS + Kubernetes. Tech used - JAVA, Spring Boot, Microservice, Kafka, Event Streaming, MongoDB, Redis.
• Created a generic anomaly detection framework on Google Cloud using Apache Beam, Facebook Prophet and Big Query for gas agencies.
• Implemented SNMP based framework for the collection of critical network devices' metrics and drive analytics on top of that.
• Designed and developed the data engineering features of a warranty package recommender system for a renowned car manufacturing group.
• Lead a team to implement the Big Data platform for running the organisation's core product for Telecom RA.

Sep 2015 – Jun 2018 · 2 yrs 9 mos · Kolkata, West Bengal, India · Hybrid

• Hired during the inception of the organisation (first 5 engineers) and introduced many processes which have evolved and proven effective till date.
• Designed and implemented a Single Sign-On (SSO) system for multiple BE apps using Spring Security & Netflix Zuul.
• Designed and implemented the core component of microservice-based architecture which is fundamental to all new applications in the organisation.
• Developed components like ETL, Rule Designer for mobile banking analytical solution called Teller.
• Developed core modules for case tracking in a solution called Case Tracker.
• Developed message broker for communication between Wechat and Salesforce CRM.
• Designed and implemented a BI solution called Turbo to be very dynamic in handling inputs with simple APIs.
• Developed a recommendation engine using machine learning, spark, google app engine, python.
• Introduced a program called ACE which offered internships to quality graduates, and a handful of them hired who now leads many of the organisational tech initiatives and leading products.

Jul 2011 – May 2015 · 3 yrs 10 mos · Mumbai, Maharashtra, India · On-site

• In the early days, worked on COBOL and CICS, developing small apps like calendar, an SQL style regex utility.
• The best part of working in these apps was to create calendar or compilation algorithms keeping in mind the constraints applied by the nature of those languages, with no open sourced libraries available.
• Each line of code was built from scratch.
• Worked on financially critical banking problems for various Indian Banks like CBI, BOM, ALB.
• Interacted with clients and site teams, understood the business problems; proposing and developing a feasible approach.
• Designed and developed a server in JAVA to act as an intermediate for routing and tracking NEFT/RTGS messages.
• This server till date handles large number of messages.
• The number of messages growing every day.
• Specialised in Remittance module and lead a team to develop unique solutions to a variety of clearing processes.
• Voluntarily created a platform with SHELL scripts which enabled automation of a lot of tasks like auto-code generation, region monitoring and maintenance.
• Enabling developers to use the framework for creating new scripts thus making life easier and development faster.
• Developed a multi streaming framework in SHELL which takes multiple files of millions of records as input and passes into streams by automating load balancing for processing.
• It also has a cli based monitoring and control system.
• Participated in major organisational events like Nielsen-Hackathon; got selected and managed to showcase our team's idea in front of leading technology enthusiasts globally.
• In another event, awarded runners up for coming up with an unique idea ensuring password security for the article titled "Password Habit - Puzzle or Pie".
• Organised sports activities in the organisation and was a part of the core team to bring out our project's "Impression" magazine.
• Recognised in the organization with multiple awards like LIREL, Star of the Batch, Star of the Month amongst many others.