Jun 2019 – Jul 2025 · 6 yrs 1 mo · Berlin Area, Germany

• Built software to transfer money to / from European banking networks for Klarna's "Banking Platform" team. All Klarna payments transferred via SEPA Network go through the code I have written. I also worked on integration with other payment providers e.g. Swish, Swift, ACH etc.
• The code I wrote has moved money in the tune of over €500 million (in 2023) with high availability, extremely low error rate and excellent performance. In 2024, my system has crossed over 150 million financial transactions (with over €7 billion in value) without any major upgrades, all on an API running on 7-12 AWS micro instances). In July 2025 the volume crossed over 4 million requests per day.
• In the past (2019-2022) I was responsible for development and operations of critical consumer banking features like automatic scheduled transfers, monthly account statements, customer communication through email / push notifications.

Aug 2015 – May 2019 · 3 yrs 9 mos · Berlin Area, Germany

• Helped an edutainment & ecommerce organization to assess their current software architecture and built a future-ready and scalable cloud-based ecommerce platform using React, Kotlin and AWS
• Built a mobile application to help the business leaders and experts collaborate on client development opportunities. Built the entire application alone using React Native & Ruby on Rails.
• Worked for one of Europe's largest electronic retailer to migrate their online store to a modern JavaScript based technology stack
• Worked for a large Finnish retail bank to build a responsive, mobile web application to help customers looking for a mortgage
• Worked for a Czech Republic retail bank, building a React.js based modern web application which allows business owners to borrow a loan with a few clicks.
• Worked on a NodeJS and ReactJS based web application for an major insurance provider. This was the first Cloud based project for the organization. My team built a modern, reusable, reference micro-services + Kubernetes based stack with multiple NodeJS services written in Node/HapiJS, frontend written in React+Redux and AWS RDS being the persistence provider.
• Worked on building OrgLab (http://www.mckinseysolutions.com/solutions/orglab.aspx) using Ruby on Rails, Neo4J and EmberJS

Apr 2011 – Nov 2013 · 2 yrs 7 mos · Gurgaon, India

• Built a web application in Ruby on Rails enabling large manufacturers to identify and track energy saving levers.
• Built a mobile mini CRM on iPad for sales executives of a Petro Chemical state owned company with Angular.js and Cordova.
• Developed a real-time feedback aggregation web application to facilitate discussions and provide quick feedback in closed room / remote meetings.
• Developed an iPad optimized web application with jQuery Mobile and Rails for facilitating classroom interaction between students and instructors for http://www.greencampus.mckinsey.com/
• Developed the next generation Alumni professional network in Ruby On Rails.
• Single handedly developed an add­on to a reporting application converting MSXML reports to binary Excels and enhancing them.
• Helped transition a team to Agile methodology. Immediately identifying areas of improvement and improving product quality and developer satisfaction

Nov 2013 – Aug 2015 · 1 yr 9 mos · Berlin Area, Germany

• - Worked on developing camato (https://camato.eu) for end-to-end management of Google Adwords campaigns. Camato is a web-based application that can be used to generate ads, manage bids and view ad performance of Google Adwords campaigns all within a few clicks.

Jul 2009 – Apr 2011 · 1 yr 9 mos

• Worked for a major Dutch technology firm specializing in data quality products. I was involved in development of a SOAP layer over the product to make integration with SAP easy. I also assisted the team as a Scrum Master.
• Involved in development and enhancement of physical fitness related website in France using Grails and jQuery (http://coachclub.com)
• Involved in development of new website for a tour operator in Netherlands, specifically the booking process which involved collecting user information and connecting to third party payment provider (http://elmar.nl)

Oct 2006 – Jul 2009 · 2 yrs 9 mos

• Worked on integrating the trade­order matching system for Korea Stock Exchange for Goldman Sachs.
• Developed a web application to integrate trading application with prime brokerage application for Morgan Stanley.
• Assisted Morgan Stanley, Japan MBS team with development of Informatica jobs, Perl scripts and a Java application.

Oct 2002 – Oct 2006 · 4 yrs

• - Worked as a developer on multiple Geographic Information System applications for customers in England, India and Mexico. Primarily developed web applications with Java and open source GIS tools.