Lei N.-Senior Fullstack Java Developer / Consultant
Check rate
Experience
Fullstack Java Developer/AI Developer
ING DiBa Bank
Development of Java-based applications with a focus on microservices architecture
Azure, Spring Boot, REST, Kafka, Lombok, Credit
Finanz Informatik Sparkasse
Development of microservices/REST API applications
Development of Java-based applications with a focus on microservices architecture.
Java, Spring Boot, Batch, Spring and Java Update, Kafka, Lombok, MapStruct, Lombok, JPA, Hibernate, Angular, Vue, Cloud, Docker, Kubernetes, CI/CD, Git
DekaBank
Online securities trading platform
Development of a complex online platform for portfolios, trading, asset management, certificates & ETFs, and migration.
Java, Spring Boot, Hibernate, Spring and Java Update, MyBatis, Batch, Kafka, RabbitMQ, ActiveMQ, Quarkus, Lombok, MapStruct, Lombok, Angular, JSF/PrimeFaces, Cloud, Docker, Kubernetes, OpenShift, ELK, CI/CD, Git.
Finanz Informatik Sparkasse
Development of microservices/REST API applications
Development of Java-based applications with a focus on microservices architecture.
Java, Spring Boot, Batch, Spring and Java Update, Kafka, Lombok, MapStruct, Lombok, JPA, Hibernate, Angular, Vue, Cloud, Docker, Kubernetes, CI/CD, Git
Deutsche Bahn
KRWD
Development of Java/Node-based applications with a focus on microservices architecture and AWS.
Java, Angular, TypeScript, ExpressJs, Lombok, Docker, Kubernetes, OpenShift, Grafana, ELK, AWS, CI/CD, Git
DekaBank
Securities trading online platform
Development of a complex online platform for securities accounts, trading, asset management, certificates & ETFs, migration.
Java, Spring Boot, Hibernate, Spring and Java Update, MyBatis, Batch, Kafka, RabbitMQ, ActiveMQ, Quarkus, Lombok, MapStruct, Lombok, Angular, JSF/PrimeFaces, Cloud, Docker, Kubernetes, OpenShift, ELK, CI/CD, Git.
ING DiBa Bank
Development of Java-based applications with a focus on microservices architecture
Java Update migration, Struts -> Spring Boot migration, Hibernate, Kafka, Freemarker, CSS
Freelance Senior Fullstack Java Developer
DekaBank, Finanz Informatik, Deutsche Bahn, ING
DekaBank
Securities trading online platform
Development of a complex online platform for securities accounts, trading, asset management, certificates & ETFs, migration.
Java, Spring Boot, Hibernate, Spring and Java Update, MyBatis, Batch, Kafka, RabbitMQ, ActiveMQ, Quarkus, Lombok, MapStruct, Lombok, Angular, JSF/PrimeFaces, Cloud, Docker, Kubernetes, OpenShift, ELK, CI/CD, Git.
Senior Fullstack Java Developer / Consultant
Exxeta AG
Union Investment, Volksbank Group
Thomas Route DataSelect interface
Interface development
Java, Spring Boot, Batch, Hibernate, Apache Camel, Enterprise Integration Patterns, Apache POI
Business Analyst / Stream Lead (Aftermarket)
Volvo
Aftersales Platform
Business and technical consulting. IT development for the enhancement and new development of Java-based applications in various projects.
DekaBank
Online Securities Trading Platform
Development of a complex online platform for portfolio management, trading, asset management, certificates & ETFs, migration.
Java, Spring Boot, Hibernate, Spring and Java Update, MyBatis, Batch, Kafka, RabbitMQ, ActiveMQ, Quarkus, Lombok, MapStruct, Lombok, Angular, JSF/PrimeFaces, Cloud, Docker, Kubernetes, OpenShift, ELK, CI/CD, Git.
AXA Versicherung
Claims Reporting Online Platform
Claims Reporting Online Platform.
JEE, Spring, SpringMVC, Hibernate, CI/CD, JQuery, HTML, CSS
Royal Dutch Shell
Seascape
Development and consulting for the Seascape project, an Energy Trading and Risk Management project
Java, OpenJVS (a Java Framework from Endur, OpenLink), JDBC, Oracle, SQL, SVN, ER Diagram
Senior Java Developer / Consultant
Exxeta AG
RWE
SAP Netweaver Portal
Development of RWE SAP Netweaver Portal
Java, Netweaver Portal, WebDynpro
Developer
Chenyun Information Tech. Cooperation Ltd
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Banking and Finance, Professional Services, Automotive, Energy, and Insurance.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology and Product Development.
Skills
- Fullstack Java Developer/Devops: Java, Spring Boot, Typescript, Javascript, Angular, Rest, Kafka, Quarkus, Lombok
- Cloud: Microservices, Aws, Docker, Kubernetes, Openshift, Elk
- Databases: Oracle, Pl/Sql, Postgresql, Mysql, Ms Sql, Mongodb
- Ci/Cd: Jenkins, Git, Github, Gitlab, Sonar, Gradle, Maven
- Ai: Claude Code, Open Code, Github Copilot
Languages
Education
University Freiburg
Master · Computer Science
Certifications & licenses
CFA Level 1 bestanden
CFA Institute
Claritas
Java Programmer
Oracle Certified JEE Web Component Developer
Oracle Database Associate
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Lei is based in Offenburg, Germany.
Lei speaks the following languages: Chinese (Native), German (Advanced), English (Advanced).
Lei has at least 19 years of experience. During this time, Lei has worked in at least 6 different roles and for 12 different companies. The average length of individual experience is 1 year and 1 month. Note that Lei may not have shared all experience and actually has more experience.
Based on recent experience, Lei would be well-suited for roles such as: Fullstack Java Developer/AI Developer, Freelance Senior Fullstack Java Developer, Senior Fullstack Java Developer / Consultant.
Lei's most recent position is Fullstack Java Developer/AI Developer at ING DiBa Bank.
In recent years, Lei has worked for ING DiBa Bank, Finanz Informatik Sparkasse, DekaBank, Deutsche Bahn, DekaBank, Finanz Informatik, Deutsche Bahn, and ING.
Lei is most experienced in industries like Information Technology, Banking and Finance, and Professional Services. Lei also has some experience in Energy, Automotive, and Insurance.
Lei is most experienced in business areas like Information Technology and Product Development.
Lei has recently worked in industries like Banking and Finance and Information Technology.
Lei has recently worked in business areas like Information Technology and Product Development.
Lei holds a Master in Computer Science from University Freiburg.
Lei has 7 certificates. Among them, these include: CFA Level 1 bestanden, Claritas, and Java Programmer.
The availability of Lei needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 27 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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