Christopher Mäuer

Mobile & Full-Stack Engineer

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Berlin, Germany

Experience

Oct 2022 - Present
3 years 3 months

Mobile & Full-Stack Engineer

Propstack GmbH

  • Refactored the mobile app by reimplementing stores, models, API client, screens and components using Typescript
  • Added performant on-device storage for stores as preparation for offline mode
  • Integrated RNUILib to achieve a minimal and modern UI design quickly
  • Implemented native packages to provide additional features such as displaying of caller IDs
  • Planned feature development and UX improvements following initial refactoring and redesign
May 2022 - Oct 2022
6 months
On-site

Senior Full-Stack & Mobile Engineer

Zeppelin Lab GmbH

  • Worked on the akii product to enable smart key management on construction sites via mobile app
  • Implemented Bluetooth communication with smart locks in React Native
  • Added NFC tag reading and writing for temporary guest access
  • Restructured the access rights management system
  • Improved web app loading speeds for large lock plans through parallelized GraphQL requests
Apr 2022 - Present
3 years 9 months

Cloud Architecture Consultant, Software Architect

AMS Service GmbH

  • Led migration of software architecture from a monolithic to a flexible service-based architecture using domain driven development patterns
  • Collaborated with domain managers including product managers and managing directors
  • Designed, provisioned and maintained bare-metal Kubernetes clusters and automated CI/CD strategies using GitLab EE self-managed and ArgoCD for GitOps
  • Consulted on and integrated tech stack components including Ambassador Edge Stack, Nginx Ingress Controller, Istio Service Mesh, Keycloak, ELK (Elasticsearch, Logstash, Kibana), DataDog, ArgoCD, OSRM and Overflow API
  • Implemented an internal developer panel for self-service
  • Presented workshops on Docker, Docker Compose, test driven development and event driven architecture to software engineers
Jul 2020 - Apr 2022
1 year 10 months

Senior Full-Stack Engineer, DevOps Engineer, Software Architect

AMS Service GmbH

  • Modernized development processes and transitioned applications from monolithic to cloud native architecture
  • Rebuilt interfaces in Vue.js
  • Implemented RESTful APIs and WebSocket communication
  • Implemented JWT authentication schemes
  • Created CI/CD pipelines using GitLab
  • Restructured project management with Jira and Confluence using agile processes
  • Built custom Docker images for each service
  • Planned, built and maintained Kubernetes clusters
  • Onboarded and mentored new hires
Feb 2019 - Aug 2019
7 months

Bike Messenger

Deliveroo Germany GmbH

  • Performed bike messenger duties during training at OSZ IMT
Aug 2018 - Mar 2019
8 months

Bike Messenger

Chargery GmbH

  • Served as bike messenger during training at OSZ IMT
Oct 2016 - Jun 2020
3 years 9 months

Mathematical-Technical Software-Engineer (Trainee)

AMS Fuhrparkmanagement GmbH

  • Developed software using PHP, MySQL, Java (Android) and Objective-C/Swift (iOS)
  • Created two native Android and iOS apps
  • Implemented HTTP(S) RESTful APIs on client and server sides
  • Added kiosk mode for a driver authentication system for corporate car sharing
  • Initiated and delivered first Vue-powered web application
Jun 2016 - Jan 2018
1 year 8 months

Head of ScaleLab Germany, Full-Stack Engineer

ScaleLab, LLC.

  • Developed software using PHP and MySQL
  • Created customer dashboards for YouTube channel statistics and earnings reports
  • Built staff dashboards for YouTube creator management, recruiting and MCN management
  • Developed analysis tools for Google Analytics and YouTube Analytics data
  • Developed apps for a customer dashboard solution managing customer information, channel optimization reports and sponsorship management
Jan 2016 - Dec 2018
3 years

Full-Stack Engineer

Canyon Network UG (haftungsbeschränkt)

  • Developed software using PHP and MySQL
  • Built customer dashboards for YouTube channel statistics and earnings reports
  • Created analysis tools for Google Analytics and YouTube Analytics data
  • Developed bridges between an LDAP server and customer dashboards, forum software (PhpBB) and WordPress
Jun 2015 - Sep 2016
1 year 4 months

IT Student

AMS Fuhrparkmanagement GmbH

  • Studied applied sciences at Berlin School of Economics and Law
  • Developed software using PHP, MySQL, Java (Android) and Objective-C (iOS)
  • Created two native Android and iOS apps
  • Implemented HTTP(S) RESTful API communication on client and server sides
  • Implemented on-device encryption
Jan 2015 - Present
11 years

Self-employed

dotManaged

  • Provided web-hosting solutions and datacenter/network services to web agencies and resellers
  • Operated an autonomous network (AS213377) with multiple points of presence in German datacenters, primarily in Berlin-Tempelhof, offering networking and colocation services
  • Offered consulting services for large infrastructure projects, focusing on software architecture migrations towards cloud technologies
Jan 2013 - Jun 2015
2 years 6 months

Full-Stack Engineer, System Administrator

I.I.H Trade Group GmbH

  • Developed software using PHP and MySQL
  • Designed and built customer and staff dashboards for billing and service management
  • Managed and maintained dedicated server systems and networks
  • Worked with Sophos UTM, Cisco and PfSense firewall appliances
  • Utilized CentOS for software defined networking
Mar 2010 - Mar 2010
1 month

Software Engineer Internship

IT & I GmbH

  • Designed and built a web-based error reporting tool using ASP.Net C# and MSSQL

Summary

Full-Stack Engineer Over the past 8 years working in different software engineering positions, I gained knowledge and experience in designing, enhancing and maintaining PHP and Vue.js based web applications as well as mobile applications based on mobile frameworks such as React Native but also using the native languages Java, Objective-C and Swift.

DevOps Engineer As part of my efforts to modernize the development and release processes, I learned to implement CI/CD pipelines, build flexible Docker images, integrate GitOps, as well as to set up, maintain and monitor Kubernetes clusters for example using DataDog and Elastic (ELK Stack).

Software Architect At AMS, it is my responsibility to restructure the legacy monolithic web applications towards cloud ready service-based applications using REST- and GraphQL-APIs, Kubernetes, Edge Routing using Ambassador Edge Stack, centralized IAM using Keycloak, Service Mesh using Istio, Monitoring using Prometheus, Grafana, ELK-Stack and much more.

Skills

Frontend Engineering

  • Vue 2 & Vue 3
  • React & React Native
  • Angular

Backend Engineering

  • Php: Laravel, Zend Framework
  • Node: Express, Feather

More Languages

  • Javascript, Typescript
  • Java (+ Android Sdk) / Objective-c, Swift
  • C#.net
  • Python
  • Bash

Server Administration

  • 12+ Years Of Experience In The Web-hosting And Datacenter Industry, Even Long Before My Professional Career
  • Virtualization: Kvm/qemu, Vmware Vsphere
  • Containerization: Openvm, Docker
  • Orchestration: Kubernetes, Openstack, Ansible

Other Skills

  • Networking & Routing (Bgp)
  • Designing And Leading Projects And Processes
  • Communication, Creativity, Analytical Skills, Fast-learner, Time Management, Team Work, Open To New Technologies, Tools And Languages

Languages

German
Native
English
Advanced
French
Elementary

Education

Oct 2016 - Oct 2019

Oberstufenzentrum für Informations- und Medizintechnik Berlin-Neukölln

Mathematical-Technical Software-Engineer · Berlin, Germany

Oct 2015 - Oct 2016

Hochschule für Wirtschaft und Recht Berlin

Computer Science · Berlin, Germany

Sep 2013 - Jul 2015

Schul- und Leistungssportzentrum Berlin

A-Level (Abitur) · Berlin, Germany

...and 1 more

Certifications & licenses

Elastic Sales Engineer: Enterprise Search, Observability & Security

Elastic Sales Professional

Elastic Sales Specialist: Enterprise Search, Observability & Security

YouTube Certified - Digital Rights

Samsung Enterprise Alliance Program Silver Partner

YouTube Certified - Audience Growth

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