Cristian Rosu

I work as a consultant/contractor/freelancer and help businesses develop their enterprise products. My programming language of choice is Java (backend solutions using mainly Spring framework) but I have also worked with Angular2, Laravel, NodeJS, and Blockchain ( mostly Ethereum ). I am continuously looking for new challenges and self-improvement.

The client owned a low code platform and after receiving a $60M investment, an important requirement was to integrate with Ehtereum Blockchain for seamless smart contract generation. Implemented a scalable blockchain module that easily integrated into the existing platform and enabled both technical and non-technical customers to seamlessly develop and deploy Ethereum smart contracts. This led us to secure a strategic business partnership with a client 10x bigger than our average client.

The project goal (Bank Connect) was to create a scalable banking ecosystem to replace the client's slow/outdated system. Bank Connect is a fast and scalable banking application suite consisting of multiple modules. Increased maximum application load from 20 concurrent users to theoretical infinity by designing and implementing a horizontally scalable solution. As a technical lead, I lead a small team of colleagues into building the mobile banking module.

The client had a JavaEE Monolith which became very hard to maintain and grow and was looking for a long term solution to his problem. I suggested and implemented a solution that increased developer's productivity by migrating to a microservices architecture based on Spring Boot and Spring Cloud. Eliminated customer frustration when deploying by having 100% uptime even during deployment and decreased deploy time from 4 minutes to 1 minute.

Developed multiple functionalities for the internal apps as well as for the external mobile banking application.

Programming and networking