Hi, I am

a Senior Software Mobile Engineer

a tech lead

a problem solver

René Kann

Senior Software Mobile Engineer with 10+ years of experience building software products in corporate or agency settings. I care about maintainable and well-tested code, mentoring and creating awesome products with like-minded people.

Currently not available until: for the time being

Passion for Mobile (worked on 20+ apps) & Cloud (AWS, K8s)

Worked in agency and product company settings

5+ years Swift & Objective-C, 2+ years Flutter experience

Hands-on, user-centric, pragmatic and agile

 
03/2021 - today
today
03/2021

Senior Software Mobile Engineer

BKK VBU
Swift Objective-C Kotlin iOS Android Dart Flutter Fastlane Gitlab CI/CD Kubernetes RabbitMQ Helm PostgreSQL AWS CDK Keycloak REST

Realization of mobile and web applications in the field of eHealth and the digitization of the health care system with a focus on "Joy of Use".

  • Scaled and further developed the customer client app to four-part daily active users and six-digit registrations
  • Ensured coding standards by evolving architecture, code reviews, testability and pair programming (clean architecture, MVVM, TDD)
  • Increased the bus factor by cross-training / pair programming to nearly full team size on the whole stack
  • Participated in user testing sessions as spectator to fully understand user needs
  • Increased reliability and availability of the app to in average 99,85% (both platforms) crash free rate
  • Interim Lead for new web team, ramped up team and built recruiting website, which increased application rate by factor two
  • Took ownership for the project "Online Access Act" to connect 50+ forms to internal systems
 
 
01/2021 - 02/2021
02/2021
01/2021

Child care

Child care in lockdown due to daycare closures.

 
 
08/2019 - 12/2020
12/2020
08/2019

Freelance Senior Software Mobile Engineer / Interim Tech Lead

BKK VBU
Swift Objective-C Kotlin iOS Android Dart Flutter Fastlane Gitlab CI/CD Kubernetes RabbitMQ Helm PostgreSQL AWS CDK Keycloak REST

Realization of applications in the field of eHealth and the digitization of the health care system with a focus on "Joy of Use".

  • Initial creation, scaling and maintaining the VBU app within 1 year to three-part daily active users and five-digit registrations
  • Contributed to the hiring process to increase vbu.platform teams size by factor two
  • Interim tech lead for vbu.platform as a coach, mentor to further grow and develop engineers on the app and web team
  • Large projects were broken down into manageable, parallelizable tasks that could be solved in distinct stories and deliverables
 
 
06/2019 - 07/2019
07/2019
06/2019

Paternity Leave

Expanding the key skills bouncing, calming, encouraging, doing laundry and getting along with little sleep.

 
 
01/2019 - 05/2019
05/2019
01/2019

Freelance Senior iOS Developer + Consultant

Successyou GmbH (Part of OSF Digital)
Salesforce Swift Couchbase B2B

Maintained an app for a large multinational corporation of nonalcoholic beverage concentrates which was used by a large group of sales representatives in Europe.

  • Integrated Salesforce SDK for iOS
  • Created extensive documentation for hand-over
  • Migration Objective-C to Swift
 
 
10/2018 - 12/2018
12/2018
10/2018

Freelance Senior iOS Developer + Consultant

Free2Move (Groupe PSA)
Objective-C Swift Migration Workshop B2C

Working in an English speaking environment I supported with test-driven implementation of a completely new feature for multi-provider registration.

  • Build, integrated and tested multi-provider registration for 20+ car, ride and bike sharing providers
  • Introduced testability and gave a workshop about unit and integration testing
  • Migration from Objective-C to Swift
 
 
01/2018 - 09/2018
09/2018
01/2018

Freelance Senior iOS Developer + Consultant

ImmobilienScout24
Swift Objective-C TDD AWS Serverless Legacy Migration B2C

Working in an English speaking environment I supported with test-driven implementation of new product functions for the ImmobilienScout24 App.

  • Implemented new feature for real estate valuation within the ImmobilienScout24 App
  • Integration of ad tracking
  • Migration from Objective-C to Swift
 
 
01/2017 - 12/2017
12/2017
01/2017

Freelance Senior iOS Developer + Consultant

BitingBit GmbH
Objective-C Swift Firebase Mentoring MVVM B2C

Maintaining an app for a leading German multinational automotive company and applied new features in weekly sprints, performed code reviews.

  • Refactoring to increase understandability and testability, reduce dry and common issues
  • Being a mentor for junior mobile developers
  • Built greenfield project for dentist exhibition
 
 
05/2011 - 12/2016
12/2016
05/2011

CTO / Deputy Managing Director

UCDplus GmbH
Objective-C Swift Fastlane MVVM CI/CD Mentoring / Coaching Onboarding 1on1s Employee Review Hiring B2C B2B

Lead (5+ engineers) and manager of various projects (team size 5 - 15) for well-known, multinational and middle-class clients.

  • Team lead of 5+ engineers
  • Piloted several projects (team size 5 - 15) for multinational clients (e.g. Daimler AG, Porsche AG)
  • Project lead for optician products, which revolutionized the optician market by reducing costs by 90% compared to competitor products and won the SILMO d'Or award
  • Ensured coding standards and maintainability by evolving architecture, testability and pair programming
 
 
06/2006 - 12/2010
12/2010
06/2006

Founder and CEO

Soraxdesign

We implemented rich internet applications (RIA) with Flash, Flex and web applications for various national clients.

 
 
05/2007 - 01/2010
01/2010
05/2007

Freelance Idea Engineering

Zephram GbR

I worked as idea engineer for the Zephram GbR, moderated workshops and developed product ideas.

 
 
06/2006 - 10/2009
10/2009
06/2006

Freelancer for RIA and Web Development

Schroeder + Wendt GbR

Implemented rich internet applications (RIA) with Flash, Flex and Silverlight and web applications for various larger clients.

 

Skills

Mobile / Frontend Engineering

Objective-C, Swift, Flutter, Dart, Kotlin, Redux, Cocoapods, Xcode, Fastlane, Core Data, Native Apps, Mobile Apps, Browserstack, Node, NPM, Gatsby, TypeScript, React, JavaScript

General Engineering

Gitlab CI/CD, Pair programming, Dependency Injection, Clean Code, MVVM, MVP, MVC, Broadcasting Pattern, VIPER, Unit Testing, Integration Testing, Software Development Life Cycle / SDLC

Processes & Projectmanagement

Rapid Application Development, Refinement, Scrum, Project lead, 1one1s, Coaching / Mentoring, Agile Development, Jira, Confluence

Backend / Infrastructure

AWS CDK, Serverless, MySQL, PostgreSQL, Kubernetes, Prometheus, Helm, Keycloak, Python 3.x, Vertx, Kotlin, RabbitMQ, REST

Languages

German

Native

English

Professional working proficiency

Spanish

Elementary proficiency

Education

08/2005 - 05/2011

Dipl.-Ing. of Computational visualistics, focus on mechanical engineering

Otto-von-Guericke University Magdeburg

Thesis: Acceleration of computerized decision making processes with pairwise comparisons based on sorting algorithms. (grade 1.8) Open

Contact

René Kann

Senior Software Mobile Engineer

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