Recommended expert

Alexander Schwartz

Full-Stack Developer (Java/Kotlin/Angular)

Alexander Schwartz
Munich, Germany

Experience

Aug 2024 - Dec 2025
1 year 5 months
Lübeck, Germany

Full-Stack Developer (Java/Kotlin/Angular)

Hypoport (Vergleich.de)

  • Further development of the vergleich.de website

  • Development of new and improvement of existing backend services as microservices

  • Deployment via TeamCity and GitHub Actions

  • Development of monitoring tools

  • Development of REST APIs

  • Database migration from Oracle to PostgreSQL

  • Java and Kotlin (including Spring, Spring Boot, JPA, Hibernate)

  • Angular (TypeScript) and JavaScript

  • IntelliJ IDEA and WebStorm

  • Apache Maven

  • Oracle DB (and SQL Developer), MongoDB, PostgreSQL DB

  • Git (GitLab, GitHub, BitBucket)

  • TeamCity

  • Jira

  • Docker

  • JUnit, Mockito, jasmin

Jun 2023 - Dec 2025
2 years 7 months
Kamp-Lintfort, Germany

Full-Stack Developer

Computer Futures / KRZN

  • Further development and customization of existing software

  • New development of an instance manager (Java frontend and Angular backend) and a password store

  • Complexity estimations

  • Development of REST APIs

  • Authentication using Keycloak

  • Angular 20 (Angular Material, RxJS)

  • TypeScript

  • Java 21

  • Spring Boot 3.4.2

  • Python

  • PostgreSQL

  • Keycloak, PrivacyIDEA

  • WebSocket

  • Kubernetes (with Rancher)

  • Git, GitLab, SourceTree

  • IntelliJ IDEA Ultimate, IntelliJ WebStorm

  • Jira

  • Clean Code Architecture

  • JUnit, Mockito

Mar 2023 - Mar 2023
1 month
Lucerne, Switzerland

Full-Stack Developer / DevOps

Callista / CSS

  • Further development and customization of existing software

  • Deployments in Kubernetes via TeamCity

  • Angular 15 (Angular Material, RxJS)

  • Java 18

  • TypeScript

  • Git, Bitbucket, SourceTree

  • IntelliJ IDEA Ultimate

  • Kubernetes

  • Cypress Testing Framework

  • Clean Code Architecture

  • DDD

Jan 2023 - May 2023
5 months
Munich, Germany

Founder and Full-Stack Developer

Stockforecast.de

  • Development of a single-page web app in Angular 12

  • Development of a backend server application in Kotlin

  • Integration with Google Cloud Platform (Firebase): Authentication, Firestore NoSQL database, Storage, Cloud Functions, Hosting and Cloud Run

  • Integration of the Financial Modelling Prep API as a data source

  • Automated analysis of historical stock data to identify statistical patterns (“statistical trading”)

  • CI/CD via GitHub Actions using Docker and Google Cloud Run

  • Angular 12 (Angular Material, RxJS)

  • Kotlin 1.8.0

  • Spring Boot 3.0.3

  • TypeScript with Bootstrap

  • Google Cloud Platform (Firebase, Cloud Run)

  • Git, GitHub, SourceTree

  • IntelliJ WebStorm, IntelliJ IDEA

Oct 2021 - Jan 2023
1 year 4 months
Lübeck, Germany

Full-Stack Developer (Java/Kotlin/Angular)

Hypoport (Vergleich.de / Dr. Klein)

  • Further development of the websites vergleich.de and drklein.de

  • Development of new and improvement of existing backend services as microservices

  • Development of monitoring tools

  • Deployment via TeamCity and GitHub Actions

  • Development of REST APIs

  • Java and Kotlin (including Spring, Spring Boot, JPA, Hibernate)

  • Angular (TypeScript) and JavaScript

  • IntelliJ IDEA and WebStorm

  • Apache Maven

  • Oracle DB (and SQL Developer), MongoDB

  • Git (GitLab, GitHub, BitBucket)

  • TeamCity

  • Jira

  • Docker

  • JUnit, Mockito, jasmin

Jan 2021 - Dec 2021
1 year
Munich, Germany

Founder and Full-Stack Developer

Blitzshare.de

  • Developed a single-page web app in Angular 12

  • Developed a backend server application in Kotlin

  • Integrated Google Cloud Platform (Firebase): Authentication, Firestore NoSQL database, Storage, Cloud Functions, and Hosting

  • Integrated various APIs, e.g., Google Geocoding API, Google Translation API, Algolia Search, Twilio SendGrid

  • CI/CD with GitHub Actions

  • Angular 12 (Angular Material, RxJS)

  • Kotlin 1.4.21

  • TypeScript with Bootstrap

  • Spring Boot 2.4.2

  • Google Cloud Platform (Firebase)

  • Git, GitHub, SourceTree

  • IntelliJ WebStorm, IntelliJ IDEA

Feb 2019 - Dec 2020
1 year 11 months
Munich, Germany

Backend Developer (Java)

OSB / it@m

  • Co-developed the base framework for online services of the City of Munich

  • Enhanced and created new online services using JavaServer Faces (JSF)

  • Integrated with existing core components like ePayment or backend integration (via web service)

  • Created and adapted technical documentation for developed components (e.g., UML diagrams)

  • Reviewed and specified the technical application possibilities of additional products or frameworks for web development

  • Developed microservices

  • JUnit testing. Test-driven development (TDD)

  • Java (including Spring, JPA, Hibernate), JavaScript

  • Eclipse IDE for Java EE Developers 2019-06

  • Apache Maven and Camel. ActiveMQ

  • Git and Subversion

  • Oracle SQL Developer

  • Jenkins and SonarQube

  • Mantis and TestLink

  • LiMux (based on Ubuntu Linux 18.04 LTS)

  • JUnit

Feb 2016 - Dec 2020
4 years 11 months
Munich, Germany

Android App Developer

Native Android App Development (Solo Project)

  • Developed a card game app

  • Developed a fitness tracking app with a Spring Boot server component

  • Installed and administered an Ubuntu server and necessary software for the server component

  • Developed a health app

  • Java, Kotlin, Android framework

  • Gradle (app), Maven (server application)

  • Android Studio (app), Eclipse EE (server application)

  • Ubuntu 16.04.5 LTS

  • Apache, Tomcat, MySQL, phpMyAdmin

  • Subversion

  • PuTTY and WinSCP

Dec 2015 - Feb 2019
3 years 3 months
Munich, Germany

Backend Developer (Java) and Development Team Leader

Cataneo GmbH

  • Developed new software modules and improved and extended existing ones (primarily backend, also frontend)

  • Led a development team of 5 people

  • Conducted code reviews and error analysis

  • Data imports and exports (XML/XSD, Apache POI, etc.)

  • Developed RESTful web services

  • Migrated from ANT to Maven

  • Code documentation (UML, Markdown, AsciiDoc)

  • Java 9 (including Spring, Spring Boot, Spring Batch, Spring Security, and Querydsl), JavaScript (including jQuery), and Oracle SQL

  • Maven

  • Eclipse IDE for Java EE Developers 4.8 (Photon), VS Code

  • Oracle SQL Developer

  • Git and Subversion

  • PuTTY and WinSCP

  • Jenkins

  • SonarQube

  • Jira and OTRS

  • Windows 10 Pro, Microsoft Office 2019

Jul 2014 - Nov 2015
1 year 5 months
Munich, Germany

System Test Manager

Conplan GmbH / MEAG

  • Automated installation of test machines with Windows 7 64-bit for rollout preparation

  • Managed the machines and created deployment tasks

  • Supported testers

  • Assisted with troubleshooting and resolving defects

  • Created test plans and entered test procedures into HP Quality Center

  • Supported various project management tasks

  • Windows Vista 32-bit and 7 64-bit

  • Microsoft Office 2007 and 2013

  • HP Quality Center

  • SCCM and DDWI

Jun 2014 - Jul 2014
2 months
Munich, Germany

First and Second Level Support

Far Galaxy Networks

  • User support

  • 1st and 2nd level server administration

  • Management and support of user accounts and mailboxes

  • On-site customer support

  • Windows 7, 8

  • Windows Server 2008, 2012

  • Active Directory

  • LogMeIn

Apr 2014 - Jan 2015
10 months
Munich, Germany

Master's Thesis (Using multiple cameras on a robot's exterior as a unidirectional proximity sensor)

Institute for Cognitive Systems (TU Munich)

  • Develop a camera system that can be attached to a robot's limbs and acts as a unidirectional proximity sensor

  • Develop software to analyze the camera images and determine the distance to objects

  • C++ with OpenCV

  • Windows 7

  • Ubuntu

Aug 2012 - Dec 2012
5 months
Munich, Germany

Template design and QA for Microsoft Office

Conplan GmbH / Munich RE

  • Design and customize templates for Microsoft Word 2007 and PowerPoint 2007

  • HP Quality Center tests for Microsoft Word 2007, Outlook 2007, PowerPoint 2007, Excel 2007, Access 2007, Visio 2007

  • Log and track file inventory

  • Write test plans for internal tools and execute tests

  • Write documentation and instructions for internal tools

  • Windows 7

  • Microsoft Office 2007

Apr 2012 - Feb 2013
11 months
Munich, Germany

Magazine design and editing

Association of Students at the Olympic Center e.V.

  • Create a design template (Microsoft Office) for the association's internal magazine Oly-Info

  • Write articles

  • Translate the entire magazine into English

  • Liaise with the association's committees and provide support

  • Windows 7

  • Microsoft Office 2007

Dec 2011 - Feb 2012
3 months
Traunreut, Germany

Bachelor's Thesis (Programming a microcontroller to develop a circadian lighting control system)

Siteco Lighting Technology (formerly Siemens)

  • Perform photometric measurements

  • Analyze measurement data mathematically

  • Select, order, and assemble electronic components

  • Extensive programming of an Atmel microcontroller

  • Use a DCF77 receiver to determine the current time

  • Windows 7

  • AVR Studio 4

  • Atmel AT90PWM316 microcontroller

Sep 2011 - Nov 2011
3 months
Traunreut, Germany

Engineering Intern

Siteco Lighting Technology (formerly Siemens)

  • Firmware updates on lighting controllers

  • Programming various development tools in Delphi

  • Soldering several prototype circuits for training purposes

  • Measuring oscillator crystals on an oscilloscope at different temperatures, then replacing them with other quartz crystals and measuring again

  • Documenting the results

  • Assisting with mathematical calculations

  • Windows 7

  • Turbo Delphi

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (10.5 years), Banking and Finance (3 years), Government and Administration (2 years), Education (1 year), Media and Entertainment (1 year), and Insurance (0.5 years).

Information Technology
Banking and Finance
Government and Administration
Education
Media and Entertainment
Insurance

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (11 years), Product Development (9 years), Quality Assurance (2 years), Project Management (1.5 years), Research and Development (1 year), and Marketing (1 year).

Information Technology
Product Development
Quality Assurance
Project Management
Research and Development
Marketing

Skills

  • Full-stack Software Development, Programming

  • Intellij Idea

  • Webstorm

  • Eclipse

  • Android Studio

  • Git

  • Sql Developer

  • Linux Shell

  • Microsoft Office (Word, Excel, Powerpoint, Outlook)

  • Windows 3.11 To Windows 11

  • Adobe Photoshop

  • Adobe Premiere

  • Java (Jee, Spring, Spring Boot, Hibernate)

  • Kotlin

  • Angular 15

  • Typescript

  • Javascript

  • Android Sdk

  • C

  • C++

  • Delphi

  • Vhdl

  • Systemc

  • Php

  • Marathon Runner (Personal Best 2022: 3:09:38 H)

  • Munich Company Run 2016 - 239th Place Out Of 25478

  • Java 21

  • Java Spring / Spring Boot / Spring Mvc / Spring Security / Spring Batch

  • Java Hibernate / Querydsl

  • Kotlin

  • Angular 20

  • Typescript

  • Javascript (Ecmascript 2022 (Es13))

  • Jquery

  • Bootstrap

  • Android App Development

  • Maven

  • Gradle

  • C

  • C++

  • Php

  • Vhdl

  • Systemc

  • Assembler

  • Delphi

  • Html 5

  • Css 3/scss

  • Intellij Idea 2025.1

  • Webstorm 2025.1

  • Eclipse 2019-06

  • Android Studio 4

  • Qt Creator

  • Oracle Sql

  • Mysql

  • Sqlite

  • Sql Developer

  • Phpmyadmin

  • Mongodb

  • Firebase Firestore Nosql Database

  • Postgresql

  • Apache Xammp / Wammp / Lammp

  • Apache Tomcat

  • Windows 3.1, 3.11, 95, 98, Me, 2000, Xp

  • Windows Vista, 7, 8, 8.1, 10, 11

  • Ubuntu 24.04 Lte

  • Linux Mint 18

  • Android 16

  • Ios 16

  • Microsoft Hyper-v

  • Microsoft Virtualpc

  • Vmware Workstation

  • Docker

  • Kubernetes

  • Design, Planning And Management Of Group Policies (Ad Group Policies)

  • User And Group Management

  • Hp I3s

  • Otrs

  • Atlassian Jira

  • Confluence

  • Slack

  • Microsoft Word (2007 - 2019, 365)

  • Microsoft Excel (2007 - 2019, 365)

  • Microsoft Powerpoint (2007 - 2019, 365)

  • Microsoft Outlook (2007 - 2019, 365)

  • Adobe Photoshop Pro 2021

  • Adobe Photoshop Lightroom Classic

  • Adobe Premiere Pro 2022

  • Gimp

  • Git

  • Svn

  • Google Cloud Platform

  • Firebase Hosting

  • Firebase Storage

  • Firebase Firestore Database

  • Firebase Authentication

  • Firebase Cloud Functions

  • Secret Manager

  • Cloud Run

Languages

German
Native
English
Advanced
Latin
Elementary

Education

Apr 2012 - Feb 2015

TU München

Master of Science · Electrical Engineering and Information Technology · Munich, Germany

Oct 2008 - Mar 2012

TU München

Bachelor of Science · Electrical Engineering and Information Technology · Munich, Germany

Sep 1998 - Jun 2008

Johannes-Heidenhain-Gymnasium Traunreut

Abitur · Traunreut, Germany · 2,3

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Alexander based?

Alexander is based in Munich, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Alexander speak?

Alexander speaks the following languages: German (Native), English (Advanced), Latin (Elementary).

How many years of experience does Alexander have?

Alexander has at least 13 years of experience. During this time, Alexander has worked in at least 14 different roles and for 15 different companies. The average length of individual experience is 1 year and 10 months. Note that Alexander may not have shared all experience and actually has more experience.

What roles would Alexander be best suited for?

Based on recent experience, Alexander would be well-suited for roles such as: Full-Stack Developer (Java/Kotlin/Angular), Full-Stack Developer, Full-Stack Developer / DevOps.

What is Alexander's latest experience?

Alexander's most recent position is Full-Stack Developer (Java/Kotlin/Angular) at Hypoport (Vergleich.de).

What companies has Alexander worked for in recent years?

In recent years, Alexander has worked for Hypoport (Vergleich.de), Computer Futures / KRZN, Callista / CSS, Stockforecast.de, and Hypoport (Vergleich.de / Dr. Klein).

Which industries is Alexander most experienced in?

Alexander is most experienced in industries like Information Technology (IT), Banking and Finance, and Government and Public Administration. Alexander also has some experience in Media, Entertainment and Publishing, Education, and Manufacturing.

Which business areas is Alexander most experienced in?

Alexander is most experienced in business areas like Information Technology (IT), Product Development, and Quality Assurance (QA). Alexander also has some experience in Project Management, Research and Development (R&D), and Marketing.

Which industries has Alexander worked in recently?

Alexander has recently worked in industries like Information Technology (IT) and Banking and Finance.

Which business areas has Alexander worked in recently?

Alexander has recently worked in business areas like Information Technology (IT) and Product Development.

What is Alexander's education?

Alexander holds a Master in Electrical Engineering and Information Technology from TU München and a Bachelor in Electrical Engineering and Information Technology from TU München.

What is the availability of Alexander?

Alexander is immediately available full-time for suitable projects.

What is the rate of Alexander?

Alexander's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Alexander?

To hire Alexander, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1200
900
600
300
Market avg: 850-1010 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.