Varun Singh Email & Phone Number

- Led the engineering for Bank Middleware Systems like Bank Authentication System(>45k tps and scalable to 120k tps), Bank User Profile System(300 million+ users), Device Binding, Notification(>10k tps), OTP, Subscriptions, Super Recon( i.e, Regulatory recons in Bank), Payment Hub etc. ensuring scalability to meet high transactional volumes.- Collaborated with stakeholders to align tech strategies with company vision, working closely with Business, Product, Compliance, Operations, and Legal teams.- Setup of Bank Data Center( Ctrls & Nextra ) as part of our long term cost initiative and compliance requirements for Bank along with the Devops, Network, Infra and Data Center teams and migrated critical applications from AWS to Data Center.

India

- Head of Engineering of Insurance Tech - comprises of 40+ engineers inside the team. - Led backend of Digital Proxy & Mini Apps.

- Led Engineering for Paytm- Transportation team (All intracity travel e.g. Metros, Bus ticketing, IOCL Rewards etc.)- Led Digital Payments (All kind of Recharges & Bill Payments) tech team

India

Design ,architect, develop Jio Cloud RDS (Database as a service) platform. We were creating public cloud platform in Jio and my team was working on building public cloud Database as a service platform for customers just like AWS RDS platform.Created different independent REST based micro-services, Instance Agents in Java(Spring boot) and Python(Pecan).Developed complete monitoring service and auto recovery feature for each database instance in production Mentoring/ Leading a team of 3 people, providing technical work and guidance to build the system efficiently which involves working with Java, Mysql, Mistral, Openstack etc.Technology used : Java, Spring Boot, Python, Git , AWS services, Openstack , mistral, Mysql etc.

New Delhi Area, India

Design, development and testing of snapdeal seller platform - for onboarding seller products on snapdeal platform with validation and QC and pushing both products and dynamic price data for products to downstream systems with various in-built pipelines .Worked on building Pricing and Product Pipelines using Multithreaded Java app , Messaging Queues(ActiveMQ), MongoDb.Worked on building Web application for QC for onboarding products so that product can be manually verified by QC team before any further processing. The functionality given to them was creating draft of product and verifying each and every field of a product.The coding involves working in Java, Spring MVC(with REST architecture) framework and on database side using Mysql.Mentoring/Leading a team of 7-8 people, distributing work among them and providing proper guidance for building product and also having interaction with Product Managers and QA team for proper execution of the functionalities.Technology used : Java, Spring MVC, Git, ActiveMQ, MongoDb, AWS services.

Worked on “Report A Problem” maps feature and was mainly responsible for server side - Development, Design and requirement gathering of creating web service for reporting a problem in maps. This requires coding in Java, using Spring MVC framework, DynamoDb for data store and workflow systems etc.Developed the initial framework for backup, restore and validation of customer feedbacks. This requires AWS datapipelines, DynamoDb and S3.Mentoring juniors in team and coordination with cross functional Teams, requirement gathering and communication with vendors(Here Maps Managers) for requirements/problem fixingTechnology used : Java, Spring MVC , S3, DynamoDb, AWS Data pipelines, Git and other amazon internal technology.

Design and development of various casino related products.Worked on different web\windows services to handle different casino\player related operations.These were multithreaded applications, Asp.net web applications and also WCF services. This involves coding in C#, Asp.net,JS, WCF, Sql Server etc.Mentoring of Juniors in the team for technical help.Technology used : C#, Linq , Asp.net, WCF services, Sql Server, TFS ,VSS etc.

• Development, Design, Requirement gathering, Testing and Implementing Algorithms of Reservation roster for allotting post to different reserved categories in a web application. • Worked on a web application to maintain officer information and for monitoring and implementation of Transfer & Posting orders issued by a govt. department. • Worked on web application to store, track, maintaining status and generating reports of acrs of different govt. officers.Technology used : C#, Asp.net, WCF services, Sql Server, TFS ,VSS etc.

Worked in IVP for creating various applications for Hedge Funds and I-Banks. Also created a web application from scratch for internal employee management inside IVP.Technologies Used: .Net 3.5,Asp.net 2.0,c#,Sql Server 2005,Ajax,Html , Xml ,WCF.