Andrei Stefan

I work as a developer / contractor / freelancer and help businesses develop their software solutions. My programming languages of choice are Java & Angular and I'm continuously looking for new challenges and self-improvement.

The client was experiencing an increasing number of complaints from customers caused by a deficient search service. Raised customer satisfaction by 1.5 points on a scale of 1 to 10 by redefining the source file indexing process and enabling requested insights to be found, ironing out a critical memory leak, and writing comprehensive documentation for the complete search functionality Skills: Java, Spring Framework, Apache Lucene, Python, Microservices, JUnit, DB2-LUW, Regex, CI/CD

The client, an important player in the debt collection software market, suffered from a substantial loss of customers resulted from a slow and unintuitive on-premise application and decided to migrate to a web-based solution. Boosted conversion rate by 10% by designing a customer-focused SPA that builds on the fundamentals and takes debt collection software to the next level Skills: Java, Spring Framework, Angular, Microservices, Python, Tomcat, Wildfly, Oracle DB, REST, CI/CD

The client, a well-known CRM solution provider, was facing increasingly higher costs required for implementing new features and maintenance of the application caused by a rigid architecture and the use of old technologies that were no longer supported. More than halved costs associated with maintenance and extending the application by performing multiple technology upgrades & migrations (Java 6 -> 8, Tomcat 4 -> 7, CVS -> Git, Ant -> Maven) Skills: Java, Hibernate, Wicket, REST, Maven, Tomcat

The client, a high-profile software provider for construction works estimates, was starting to lose money and users due to heavy competition in their sector. Confronted with an overwhelming number of feature requests, the client decided to go all-in on research & development. Accomplished a 250% sales boost in a 2-year timeframe, by designing 7+ highly intuitive features that greatly refined user experience Java, Hibernate, Python, MariaDB, Jasper Reports, Jenkins