Senior Full-Stack Webentwickler | AWS, Typescript, React, NodeJS

7/2022 – 11/2022

Achievements:
* Enabling machine learning experts to simply deploy their application
* Automatic and secure creation of needed infrastructure
* Creation and integration of a web application to utilize machine learning features

My responsibilities:
* Designing a serverless application on AWS to deploy the machine learning application and make it accessible via a REST API.
* Implementing Lambda services with node.js and typescript
* Setting up an CI/CD Pipeline to automatically initialize the required AWS infrastructure and deploy the python deliverable provided by another team
* Implementing a micro frontend that utilizes the machine learning feature

Skills:
AWE IAM, AWS, AWS API Gateway, AWS CDK, AWS Lambda, AWS S3, AWS Secrets Manager, Agile, Amazon Web Services, Backend, CSS, Emotion, Frontend, HTML, Node.js, React, Scrum, Typescript, cloud-engineering, devops, e-commerce, microservices, npm, webdevelopment

E-Commerce, DevOps, Agile Methodologie, Scrum, Backend, Front End, Node.Js, CSS (Cascading Style Sheet), HTML, HTML5, Amazon Web Services (AWS), Git, React (JavaScript library), Typescript

10/2021 – 6/2022

Achievements:
* Finish implementation of a platform independent video player for web, android, iOS and Smart TVs
* Successful launch of the new video player on web
* Improved tracking for data analysis
* Improved revenue by smarter advertisement features

My responsibilities:
* Implementing new features on the platform independent video player
* Integrating features for advertisements into the video player
* Integrate tracking mechanisms into the player for the data analysis team
* Integrating the video player into the main page

Skills:
AWS, AWS CDK, AWS Lambda, Agile, Amazon Web Services, Android, CSS, Emotion, GitLab, GraphQL, HTML, Javascript, Kanban, Next.js, Node.js, React, Scrum, Shaka Player, Typescript, XState, backend, cloud-engineering, devops, frontend, iOS, media, microservices, npm, streaming, webdevelopment, yarn

Agile Methodologie, Amazon Web Services (AWS), DevOps, JavaScript, Kanban (Softwareentwicklung), Node.Js, React (JavaScript library), Scrum, Streaming, Typescript

11/2012 – 9/2021

During my employment at TNG, I worked for several clients as Full Stack developer, while also offering talks and workshops on internal events to share my knowledge with my coworkers and the company.

Projects:
2019 – 2021: Agile development for a prominent German newspaper
I was supporting the team responsible for paid, digital content of the newspaper.

Achievements:
* Enable new subscription models
* Ensure DSGVO compatibility
* Enable user specific content recommendations
* Enable user specific subscription offers
* Improved data analysis and tracking

My responsibilities:
* Develop and maintain features regarding paid articles, paywall and upselling
* Develop and maintain user management, including login and registration, for endusers
* Adding an oAuth interface to the existing in-house user management
* Hosting new services on AWS using infrastructure as code frameworks
* Maintaining existing and implementing new CI/CD pipelines
* Setting up a Kubernetes Cluster for a development environment

Skills:
AWS, AWS ALB, AWS Cloudfront, AWS DynamoDB, AWS EC2, AWS ECS, AWS EKS, AWS Lambda, AWS RDS, AWS S3, AWS VPC, Agile, Amazon Web Service, CSS, Chef, Concourse CI, Containerization, Docker, Emotion, Express, Grafana,HTML, Javascript, Jenkins, Kubernetes, MongoDB, MongoDB Atlas, Node.js, Npm, Play Framework, PostgresQL, Prometheus, React, Redux, SASS, Scala, Scrum, Terraform, Typescript, backend, cloud-engineering , devops, frontend, jQuery, media, microservices, news, webdevelopment

2016 - 2019: Agile development for an online travel agency I was working both on user generated content management and on a new site providing editorial content for the users

Achievements:
* Create new admin system for moderation of hotel images uploaded by users
* Improve user experience of the user review system
* Soft launch of a new greenfield application providing editorial content and customized recommendations to the users

My responsibilities:
* Develop microservices within an event sourcing architecture for managing user generated content and the corresponding moderation via administrators
* Integrate image upload and user reviews in the frontend
* Analyze, design and implement a new product for editorial content and customized recommendations

Skills:
Agile, Akka HTTP, Akka Streams, CSS, Containerization, Docker, Express, Glamerous, HTML, Javascript, Kafka, MongoDB, Node.js, React, Redux, SASS, Scala, Scrum, Typescript, e-commerce, microservices, npm, yarn

2013 - 2016: Agile development and stabilization of a legacy, monolithic application in the mobile communication sector
In this project, we operated in a large team (>30 developer) to fix severe problems of a legacy middleware system in the domain of prepaid mobile contracts.

Achievements:
* Stabilization of a legacy application that initially couldn’t be deployed anymore
* Set up an automatic test environment to ensure the quality of future releases
* Implementing several new features once the application was stable

My responsibilities:
* Adding automated tests and integration tests to ensure the quality of the system
* Analyse, design and implement new features

Skills:
Agile, Camel, Hibernate, JBoss, JEE, JGiven, Java, Jenkins, Junit, Mockito, OracleDB, Scrum, Spring, Weblogic, devops, telecommunication

2012 – 2013: Agile development of a web application for managing innovations in the automotive sector

Achievements:
* Adding new features to manage and track the lifetime of innovations

My responsibilities:
*Develop new features to the existing application
*Bugfixing and quality assurance

Skills:
Agile, Ext.js, Java, Jenkins, Kanban, Spring Framework, Spring MVC, automotive

Agile Methodologie, Amazon Web Services (AWS), Docker, Git, J2EE, Java (allg.), JavaScript, Jenkins, Kanban, Mongodb, Node.Js, Oracle Database, Scala, Scrum, Spring Framework, Typescript

11/2009 – 11/2012

Development of solutions regarding smart metering in the energy sector.
Achievements:
* Setting up a prototype in cooperation with a regional energy supplier, measuring near to real-time energy consumption values for several households
* Supporting smart meter manufacturers with integrating PLC communication into their devices
• Created a backend solution to aggregate and export metering data

My Responsibilities:
• Implement embedded software to collect metering data via PLC technologies
• Implement a backend solution to receive, store and export metering data
• Implement a frontend to visualize metering data using ext.js

Skills:
Agile, C, Ext.js, Hibernate, JEE, Java, Jenkins, Kanban, OSGI, OracleDB, energy industry

Programmierer C, C++, Agile Methodologie, Kanban (Softwareentwicklung), Java (allg.), Jenkins, CSS (Cascading Style Sheet), HTML, JavaScript, Kanban, J2EE

11/2009 – 8/2012

* Backend Entwicklung mit Java EE (EJB, JPA, JMS) und OSGi
* Vor-Ort-Installation und Problembehebung bei Kunden in internationalen Projekten
* Technische Bewertung und Abschätzung von Projektanfragen
* Technische Leitung von Kundenprojekten mit bis zu 3 Mitarbeiter

J2EE

2/2009 – 11/2009

Achievements:
* Created an automated import for billing information into SAP Business One for custom applications of the company
* Created new features for a custom project management platform for translation projects

My Responsibilities:
* Feature development with Java and Javascript

Skills:
Java, Javascript, OracleDB

Oracle Database, Java (allg.), JavaScript