Daniel Herken
Full Stack Developer
Experience
Oct 2023 - Feb 2024
5 months Germany
Full Stack Developer
- Developed an online banking portal for an international financial services provider.
Tasks:
- Built various new features based on user and business requirements.
- Implemented style guidelines based on user feedback and the existing look and feel of the application.
- Created the necessary backend microservices to fetch and manipulate data and generate billing.
- Reviewed and adjusted Terraform configurations for Google Cloud.
- Created and maintained automated UI, integration, and end-to-end tests.
Technologies used:
- Frontend: JavaScript, TypeScript, HTML, CSS, Vue.js, Vuex, Vuetify, SCSS, Vite, Jest, Cypress
- Backend: Java, Kotlin, Spring Boot, JUnit
- Hosting: Google Cloud, Terraform, Kubernetes, Firebase
Tools:
- Git
- Atlassian JIRA
- Atlassian Confluence
- Docker
- Visual Studio Code
Skills:
- JavaScript
- TypeScript
- HTML
- CSS
- Vue.js
- Java
- Kotlin
- Terraform
- Kubernetes
- Vuetify
- Vuex
- Spring Boot
Nov 2021 - Sep 2023
1 year 11 months Germany
Full Stack Developer
- Developed a new UI framework with a REST API for a mid-sized geoinformation company to replace the existing JSP UI with a modern web-based solution.
Tasks:
- Built various UI components based on future framework users’ requirements.
- Implemented style guidelines based on user feedback and the existing look and feel.
- Created the backend REST API to fetch and manipulate data.
- Reviewed and adjusted the data access layer for correct function with different databases (MySQL, Postgres, Oracle, MSSQL).
- Created and maintained automated UI and integration tests.
Technologies used:
- Frontend: JavaScript, TypeScript, HTML, CSS, Vue.js, Vuex, ElementPlus, SCSS, Vite, Jest
- Backend: Java, Spring Boot, Tomcat, JUnit
Tools:
- NetBeans
- Visual Studio Code
- Git
- SourceTree
- Docker
- Maven
Skills:
- JavaScript
- TypeScript
- HTML
- CSS
- Vue.js
- Vuex
- ElementPlus
- SCSS
- Vite
- Jest
- JUnit
Oct 2020 - Oct 2021
1 year 1 month Germany
Full Stack Developer
- Developed a webshop for a mid-sized company specializing in professional transcription of audio and video files to offer services directly to end customers.
Tasks:
- Built a user-friendly webshop system tailored to the use case.
- Implemented responsive layouts from a design agency.
- Created the backend REST API to fetch and manipulate webshop data and integrate with the client’s existing systems.
- Created and maintained automated integration and UI layout tests.
Technologies used:
- Frontend: JavaScript, Angular, HTML, CSS, SASS, Jest
- Backend: Java, Spring Boot, JUnit
Tools:
- NetBeans
- Visual Studio
- Git
- Maven
Skills:
- Angular
- JavaScript
- HTML
- CSS
- Java
- Spring Boot
- Jest
- JUnit
Apr 2020 - Oct 2020
7 months Germany
Full Stack Developer
- Developed a new webshop for a national hardware store chain and integrated it with SAP Hybris (SAP Commerce Cloud).
Tasks:
- Built a modern single-page application webshop with a focus on flexibility and internationalization.
- Implemented responsive layouts from a design agency.
- Adapted and integrated SAP Hybris with the shop frontend.
- Created and maintained automated UI tests.
Technologies used:
- Frontend: JavaScript, Vue.js, Nuxt.js, HTML, CSS, Bootstrap, Jest
- Backend: Java, SAP Hybris, GraphQL
Tools:
- SAP Commerce Cloud
- Hybris
- Git
- Storyblok
- Eclipse
Skills:
- JavaScript
- HTML
- CSS
- Bootstrap
- Jest
- GraphQL
- Angular
- JUnit
Nov 2019 - Mar 2020
5 months Germany
Full Stack Developer
- Created planning software for a mid-sized company allowing users to make detailed cadastral maps and download them as PDFs.
Tasks:
- Developed the frontend including user management, permissions, and map data from OpenStreetMap via OpenLayers.
- Built the backend with Java and Spring Boot (REST services).
- Created and maintained automated tests.
Technologies used:
- Frontend: Vue.js, Nuxt.js, JavaScript, HTML, CSS, Vuetify, OpenLayers, Bootstrap, Jest
- Backend: Java, Spring Boot, JUnit
Tools:
- NetBeans
- Visual Studio Code
- Git
Skills:
- Vue.js
- Vuex
- JavaScript
- HTML
- CSS
- Vuetify
- Spring Boot
- Nuxt.js
- BOOTP
Mar 2019 - Oct 2019
8 months Germany
Software Developer
- Developed a combined CRM, webshop, and blog system as a Progressive Web App (PWA).
- Used Vue.js, Vuex, and Nuxt.js for server-side rendering in the frontend.
- Used WordPress, Hybris, and Sitecore in the backend.
Tools:
- Visual Studio Code
- Git
- Bitbucket
- Hybris
- Sitecore
- WordPress
- Fact Finder
Skills:
- JavaScript
- Nuxt.js
- Vue.js
- Node.js
- SCSS
- HTML
- CSS
- SSR
- Vuex
- GraphQL
May 2018 - Feb 2019
10 months Germany
Software Developer
Osthus
- Developed a document archive system in medical technology.
- Used React, Less, and Node.js in the frontend.
- Developed a pure Java backend connected to both PostgreSQL and Microsoft SQL Server.
Tools:
- WebStorm
- Git
- GitLab
Skills:
- React
- LESS
- HTML
- JavaScript
- Selenium
- CSS
- PWA
- Node.js
Jul 2017 - Dec 2017
6 months Germany
Software Developer
- Built backend and frontend functionality for a CRM solution used in publishing.
Skills:
- HTML
- CSS
- JavaScript
- jQuery
- Git
- Angular
Feb 2017 - Jun 2017
5 months Germany
Software Developer
grandcentrix GmbH
Skills:
- Python
- Elixir
- Django
- Postgres
- Node.js
- JavaScript
- HTML
- CSS
Sep 2016 - Jan 2017
5 months Germany
Software Developer
grandcentrix GmbH
Tools:
- Elastic Search
Skills:
- TypeScript
- Node.js
- Visual Studio Code
- JavaScript
- Grunt
- Yarn
- Vue
Jan 2015 - Sep 2016
9 months Germany
Software Developer
- Developed a web application for retrieving and formatting process data.
Tools:
- NetBeans
- Git
Skills:
- REST
- SOAP
- JavaScript
- HTML
- CSS
- Angular
Jan 2015 - Dec 2015
1 year Münster, Germany
Development Lead
- Architected, designed, and implemented a desktop application to control various browsers and mobile devices. Used to simplify regression testing, mainly in security-critical areas.
Tools:
- Visual Studio
- Xamarin Studio
Skills:
- .NET 4.5
- .NET 4.6
- Xamarin.Mac
- Xamarin
- C#
- Mono
- Eto.Forms
- C++
- Node.js
- JavaScript
Jan 2014 - Dec 2015
1 year Munich, Germany
Software Developer
NTTData
- Built a web application for customer vehicle configuration.
Skills:
- AngularJS
- HTML
- CSS
- JavaScript
- Node.js
Jan 2013 - Nov 2013
11 months Munich, Germany
Software Developer
ESG
- Developed an application for workshop management and vehicle programming.
Tools:
- Jenkins
- Visual Studio
Skills:
- REST
- JSON
- .NET
- C#
Jun 2012 - Dec 2013
7 months Munich, Germany
Software Developer
MAS
- Built a web application to manage invention disclosures and patents.
Tools:
- Visual Studio
Skills:
- .NET 4.0
- ASP.NET MVC
- C#
- HTML
- CSS
- JavaScript
Jan 2011 - Jun 2012
6 months Munich, Germany
Software Developer
- Designed and implemented a REST interface to an existing CRM system.
Tools:
- Visual Studio
- Xamarin Studio
Skills:
- .NET 4.5
- .NET 4.6
- Xamarin.Mac
- Xamarin
- C#
Languages
German
Native
English
Advanced
Education
Sep 2008 - Sep 2011
Wilhelm Büchner University
Diploma in Computer Science · Computer Science · Darmstadt, Germany
Sep 2005 - Sep 2008
TopM Software GmbH
IT Specialist in Application Development · Bobingen, Germany
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