Axel Kelting

Software Engineer &
IT-Consultant

Contact Details
Mobile
+1 415 702 7498
Mail
[email protected]
Website
http://www.kelting.cc

Work Experience

Profile
2014 - present

IT-Consultant(F/T) @ Self-employed

Specialized in web development and consulting.
Focused on cloud-based web/mobile development and automation for data-driven social, finance and e-commerce projects.

Recent Projects:

Lead Engineer @ Parcelly Ltd

London based company that strives to change the way you collect and send your parcels.
Managed and developed backend API project from the start. API serves the Android, iOS and Web-app, as well as 3rd party partners. Focused on delivering a lean product that is scalable and extensible for future requirements.

Senior Software Engineer @ FFG FINANZCHECK Finanzportale GmbH

The leading independent online comparison portal for installment loans and private financial products in Germany.
Part of a backend developer team of 4. Replaced the hard to maintain existing service for handling the transformation and delivery of loan requests to different financial institutions with a new microservice. Main focus to establish an automated test suite.

Senior Software Engineer @ ABOUT YOU GmbH

A fast-growing e-commerce startup to make shopping for fashion more inspiring and personal for a young target group.
Part of a cross functional team of 8. Worked on a custom software solution that allows product, merchant and price management for the procurement department. Refactored the existing legacy software based on the twelve-factor app, SOLID and clean-code methodology. Led to 100% faster release cycles, 20% more productivity and better code maintainability. Introduced weekly code reviews to broaden employee knowledge.

2018 - 2.3 years

Technical Lead(F/T) @ Valimail

Crushing phishing scams by authenticating email sender identity since 2015.
Introduced Docker for all projects which reduced setup time for new engineers. Lead the introduction of Kafka which resulted in completely replacing AWS SQS. Pushed initiative for clean architecture and DDD. Implemented a new warehouse for millions of dmarc report records based on PostgeSQL. Streamlined the CI system for simplicity by utilizing generic build steps across projects. Developed a blueprint for implementing APIs based on common open source standards. Automated API contract testing by utilizing OpenApi documentation.

2012 - 2 years

Software Engineer(F/T) @ ICANS GmbH

Develops individual, highly scalable online software.
Part of a team of 30 to build a framework for e-learning communities. Added a search appliance to provide users quick access to relevant content. Developed a scalable system to process user activity reports from business partners. Responsible for the secure storage of customer data. Introduced behavior-driven development (BDD) in different projects. Support the QA in terms of continuous delivery and release management. Reference person in a team of 5 to the product manager.

2010 - 1.5 years

Software Engineer(F/T) @ Adyard GmbH

Network for performance oriented online ad campaigns.
Extended and optimized the existing ad server technologie in compliance with the highly distributed server infrastructure. Introduced the NoSQL database MongoDB in several products. Build a new backend infrastructure for Real Time Bidding platform. Connected several Affiliate Networks to the backend system via SOAP or REST-Interface. Test-driven development (TDD) in an agile project environment.

2009 - 2010

Research Assistant(P/T) @ HAW - Internet Technologies Group

Performs research and development on technologies and applications for a Next Generation Internet, with a particular focus on mobility, multimedia and knowledge-based systems.
Worked on the project “Mindstone” which is dealing with mobile distributed learning dialogs in semantic content networks.

2001 - 7.6 years

Programmer, Hosting & Technics Lead(P/T) @ PNM Pütz Neue Medien GmbH

An online marketing and web development company specialized in keyword advertising, affiliate marketing, search engine optimization, and web analytics.
Administrated Linux web servers, the company’s intranet, internal and external e-mail systems, and DNS-Server management. Developed various custom client software.

  • 17+ years of experience in programming
  • Extensive knowledge of up to date web technologies and a range of programming languages (mainly Ruby)
  • Thinking Cloud first and tackling problems arrising from Containers / Distributed Systems
  • Having a predilection for testing methodologies and agile software development
  • Proven ability to rapidly utilize emerging technologies (most recently GO & Kafka)
  • Leadership experience through work and academic projects
  • Fluent in German and English

Skills

  • Ruby
  • Ruby on Rails
  • PHP
  • Symfony
  • Kafka
  • GO
  • MySQL
  • Postgres
  • MongoDB
  • RabbitMQ
  • Elasticsearch
  • Design Pattern
  • Object Oriented Design
  • SOA
  • Container
  • Cloud Computing
  • Scrum & Kanban
  • TDD / Behat

Interests

Hitting the road with my race bike or taking a proper swim in the pool.

Travelling the world as much as possible to discover new places and people.

Pushing down the slopes on skis during winter time.

Can't live without good music and movies.

And everything tech related gathers my attention.

Education
2006 - 2010

HAW-Hamburg – University of Applied Sciences

B.S., major in Applied Computer Science
Project at car rental company Europcar: Led team of five over 4 months. Used geodata to manage and optimize car transfers between stations. Responsible for project management and development tasks using agile software development methods.

2008

UCT – University of Cape Town

Major in Computer Science and Statistics (study abroad semester)

2004

FH Wedel – University of Applied Sciences

Major in Computer Science in Media

1998 - 2003

PTL Wedel – Private Vocational School

Technical Assistant in Computer Science
Coursework included: Database Systems, Programming, Software Engineering, Mathematics, Internet Applications, and Computer Networks.