Mihai Voicu, Developer in Berlin, Germany
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Mihai Voicu

Verified Expert  in Engineering

Software Developer

Location
Berlin, Germany
Toptal Member Since
May 4, 2020

Mihai has been a software developer since 2013. From database design, microservice architecture, and UI development, he can tackle most enterprise software challenges as a full-stack developer. Above all else, Mihai enjoys optimizing solutions for performance and reliability.

JavaSpringDatabase DevelopmentMicroservicesSpring BootJHipsterReactMacOSUbuntuGitETLMicrosoft SQL ServerT-SQL (Transact-SQL)JasperReportsJBossApache Camel

Portfolio

Audatex AUTOonline
VMware Tanzu Application Service (TAS) (Pivotal Cloud Foundry (PCF)), React...
1&1
AngularJS, Apache Camel, PostgreSQL, Microservices, Java 8, Spring Boot
Pentalog
Oracle SQL, Microsoft SQL Server, ETL, jQuery, JavaScript, Apache Camel...

Experience

Java - 7 yearsSpring - 7 yearsDatabase Development - 7 yearsJHipster - 4 yearsSpring Boot - 4 yearsMicroservices - 4 yearsAngular - 3 yearsReact - 2 years

Availability

Part-time

Preferred Environment

Git, Ubuntu, MacOS, IntelliJ IDEA

The most amazing...

...solution I've worked on reduced the time to aggregate an insurance company's client data from several minutes to a few seconds.

Work Experience

Full-stack Developer

2017 - PRESENT
Audatex AUTOonline
  • Extracted a vehicle valuation tool used daily by thousands of users from a monolith application to a microservice app.
  • Migrated Apache Click components to single-page React app.
  • Developed a microservice used to import daily partner data.
  • Developed new platform modules for clients in the automotive industry.
Technologies: VMware Tanzu Application Service (TAS) (Pivotal Cloud Foundry (PCF)), React, Angular, Spring Boot, Java 8

Software Engineer

2016 - 2017
1&1
  • Migrated a portal where users could collect virtual money for cashback purposes to a more configurable solution. The portal served 20,000 users daily.
  • Developed a microservice app that integrated data referring to user actions on partner portals.
  • Developed an internal reporting tool summarizing user and campaign data.
  • Developed and maintained a microservice that acted as an interface between the database and other microservices.
Technologies: AngularJS, Apache Camel, PostgreSQL, Microservices, Java 8, Spring Boot

Java Developer

2014 - 2016
Pentalog
  • Redesigned a business process automation system using the Spring Framework.
  • Analyzed and created the technical documentation used during the redesign implementation.
  • Migrated a database synchronization solution from a Java web application to ETL and TSQL.
  • Eliminated server out of memory errors and the need for frequent manual restarts.
  • Automated the application deployment processes and created new development and test environments on Linux servers.
  • Developed new modules for a monolith CRM application.
Technologies: Oracle SQL, Microsoft SQL Server, ETL, jQuery, JavaScript, Apache Camel, Apache Struts, Spring, Java 8

Analyst Programmer

2012 - 2014
Nationale Nederlanden
  • Developed a web service that aggregated vast amounts of client data needed by the company's sales force.
  • Designed a new database schema and data synchronization solution that allowed better performance.
  • Reduced the average web service response time from a few minutes to a few seconds, thus removing asynchronous code.
  • Migrated a rigid customer letter and email generation solution, making a customer experience project possible.
  • Migrated a complex web application from running on IBM WebSphere to running on JBoss server.
Technologies: JBoss, JasperReports, T-SQL (Transact-SQL), Microsoft SQL Server, ETL, Spring, Java

Hospital Shift Scheduling App

This project focused on building an Angular application with a Spring Boot back end used for generating and managing shift assignments in a hospital. I was the project initiator and coordinated a team of three developers and one tester to deliver a highly configurable hospital human resource management solution together with a shift generation algorithm.

Bank Internal Invoicing App

I led the development of a web app that replaced internal email communications with an interface that allows users to send and track the status of invoices and see detailed information about them. I implemented the complete solution and created the test and production environments on Microsoft Azure cloud.

Legacy system integration solution

A simple web service was needed to serve data from an SQL server database. I delivered a solution where sensitive data would be served from legacy stored procedure output to specific clients. I used Docker containers to deploy NGINX and the Spring Boot app in a virtual Ubuntu machine.
2011 - 2015

Bachelor's Degree in Computer Science

University of Bucharest – Faculty of Mathematics and Computer Science - Bucharest

Libraries/APIs

JasperReports, jQuery, React

Tools

JasperSoft ETL, JHipster, IntelliJ IDEA, Git

Frameworks

Spring, Angular, Spring Boot, Apache Camel, Apache Struts, AngularJS

Paradigms

Database Development, Microservices, ETL

Languages

Java, T-SQL (Transact-SQL), Java 8, JavaScript

Platforms

MacOS, Ubuntu, JBoss, VMware Tanzu Application Service (TAS) (Pivotal Cloud Foundry (PCF))

Storage

Microsoft SQL Server, Oracle SQL, PostgreSQL

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