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Duc tu L.

Freelance Software Developer

Lübeck, Germany

Experience

Nov 2022 - Present
3 years 2 months

Freelance Software Developer

Source Group International - on behalf of Christoph Kroschke Holding GmbH & Co. KG

  • Designed and newly developed an in-house project in a microservice landscape.
  • Used Java/Spring Boot for the backend and TypeScript/Angular for the frontend.
  • Deployed microservices on AWS (Fargate).
  • Technologies used: Ubuntu Linux, IntelliJ, GitLab CI/CD, Java 17, Kotlin, TypeScript, Angular, Maven, Spring Boot, PostgreSQL, Hibernate, JUnit, Mockito, Docker, AWS, Keycloak, Kafka.
Jun 2021 - Sep 2022
1 year 4 months

Freelance Software Developer

Hays - on behalf of Bundesdruckerei Gruppe GmbH

  • Designed, developed, and maintained a portal solution for a high-security project.
  • Technologies used: Ubuntu Linux, IntelliJ, GitLab CI/CD, Java 17, TypeScript, React, Maven, Spring Boot, PostgreSQL, Hibernate, JUnit, Mockito, Docker, Kubernetes, Keycloak.
May 2019 - Jun 2021
2 years 2 months

Java Software Developer

MACH AG

  • Designed, developed, and maintained ERP software (front- and backend) focused on payroll processes using Java 8, Gradle & Maven, Spring Boot, SQL, Hibernate, JUnit, EasyMock.
  • Designed and integrated domain-specific web services with the core product over REST/web client generation with Swagger.
  • Technologies used: Fedora Linux, IntelliJ, Jenkins, Java 8, Maven, Gradle, Spring Boot, Oracle SQL, MSSQL, Hibernate, Swagger, JUnit, EasyMock.
Nov 2018 - May 2019
7 months

Junior Software Developer

AEB SE

  • Extended an existing Java FTP client framework to add SSL functionality and built a corresponding test environment.
  • Reworked an existing database-based Java certificate manager to the Java standard and aligned with the file-based standard certificate manager.
  • Designed and developed a central gateway to connect external translation services using JavaEE, SQL, and the DeepL API.
  • Technologies used: Windows, Eclipse, Jenkins, Java 8, Maven, JavaEE, SQL.
Jan 2017 - Aug 2018
1 year 8 months
Lübeck, Germany

Student Assistant

CoSA - TH Lübeck

  • Developed a pub-sub system to transmit video data from a publisher to its subscribers using C#, WPF, ZeroMQ.
  • Extended web frontends based on HTML/CSS, JavaScript, jQuery.
  • Designed and developed an indoor localization algorithm using neural networks with Python and TensorFlow.
  • Implemented an API to manipulate files on a Contiki-NG operating system microcontroller via shell commands.
  • Technologies used: Windows, C#, C, WPF, ZeroMQ, HTML/CSS, JavaScript, jQuery, Python, TensorFlow, Contiki-NG.

Languages

German
Native
English
Advanced

Education

Sep 2015 - Nov 2018

Technical University of Lübeck

Bachelor · Computer Science · Lübeck, Germany · 1.7

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