Christopher Mäuer
Mobile & Full-Stack Engineer
Experience
Oct 2022 - Present
2 years 9 months Germany
Mobile & Full-Stack Engineer
Propstack GmbH
- At Propstack I was hired to lead the mobile app development after a longer period of stagnation. Parts of my plans to update the codebase and prepare the app for future development were:
- Refactoring of the app, reimplementing stores, models, API client, screens and components using Typescript
- Adding performant on-device storage for stores as a preparation for an offline mode
- Adding the RNUILib to achieve a minimal and modern UI design fast
- Implementing native packages to provide more features (e.g. displaying of Caller Ids)
- After the initial refactoring and redesign of the app, I will start working on feature development and improvements to the UX.
May 2022 - Oct 2022
6 months Germany
Senior Full-Stack & Mobile Engineer
Zeppelin Lab GmbH
- Working as a Full-Stack Engineer for Web & Mobile at Zeppelin Lab GmbH, I am part of the akii-Team, which is a product aiming to make the key management on construction sites smart. Using a mobile app, construction workers open doors and start construction machinery backed by an extensive access rights management system.
- Implementing Bluetooth communication with smart locks in the mobile app powered by React Native
- Implementing NFC tag reading & writing for granting temporary guest accesses through the mobile app
- Restructuring of the access rights management system
- Improving the web app loading speeds for larger lock plans (through paralleled GraphQL requests)
Apr 2022 - Present
3 years 3 months Germany
Cloud Architecture Consultant, Software Architect
AMS Service GmbH
- Leading the software architecture migration from a monolithic to a flexible service-based architecture
- Applying Domain Driven Development pattern
- Working hand-in-hand with Domain managers (e.g. product managers, managing directors, ...)
- Designing, provisioning and maintaining bare-metal Kubernetes clusters as well as automated CI/CD strategies using GitLab EE self-managed and ArgoCD for GitOps
- Consulting regarding and integration of the desired tech stack including but not limited to:
- Ambassador Edge Stack (North-South traffic)
- Nginx Ingress Controller
- Istio Service Mesh (East-West traffic)
- Keycloak (SSO server for various services)
- ELK (Elasticsearch, Logstash, Kibana) and DataDog for Monitoring and Logging
- ArgoCD
- Open Source Routing Engine (OSRM, for OpenStreetMap)
- Overflow API for OSM address / geo-coordinate querying
- Implementation of an internal Developer Panel for self-service
- Presentation & workshops for the Software Engineers (e.g. regarding Docker, Docker Compose, Test Driven Development, Event Driven Architecture, ...)
Jul 2020 - Apr 2022
1 year 10 months Germany
Senior Full-Stack Engineer, DevOps Engineer, Software Architect
AMS Service GmbH
- Working as a DevOps Engineer and Full-Stack Software-Engineer at AMS Service GmbH my goal is to modernize development processes and to translate the existing applications from a monolithic to a cloud native architecture. My responsibility includes but not limited to:
- Re-building interfaces in Vue.js
- Implementing RESTful APIs and websocket communication
- Implementing JWT authentication schemes
- Implementing CI/CD pipelines using GitLab
- Restructuring the project management with Jira and Confluence using agile processes
- Building custom Docker images for each service
- Planning, building and maintaining Kubernetes clusters - onboarding and mentoring of new hires
Feb 2019 - Aug 2019
7 months Germany
Bike Messenger
Deliveroo Germany GmbH
- Rider during training at OSZ IMT
Aug 2018 - Mar 2019
8 months Germany
Bike Messenger
Chargery GmbH
- Rider during training at OSZ IMT
Oct 2016 - Jun 2020
3 years 9 months Germany
Mathematical-Technical Software-Engineer (Trainee)
AMS Fuhrparkmanagement GmbH
- Trainee at OSZ IMT - School for Information and Medical Technology
- Developed software using PHP, MySQL, Java (Android) and Objective C / Swift (iOS)
- Developed two native Android and iOS apps
- Implemented HTTP(S) RESTful APIs (client and server sided)
- Implemented kiosk mode for a driver-authentication-system for corporate car sharing based on the Android platform
- Initiated and realized first Vue-powered web application
Jun 2016 - Jan 2018
1 year 8 months Germany
Head of ScaleLab Germany, Full-Stack Engineer
ScaleLab, LLC.
- Developed software using PHP, MySQL
- Developed customer dashboards (YouTube channel stats and earning reports)
- Developed staff dashboards (YouTube creator management, recruiting, MCN management)
- Developed analysis tools for data from Google Analytics and YouTube Analytics
- Developed Apps for an existing customer dashboard solution (for management of customer information, YouTube channel optimization reports, Sponsorship management and much more)
Jan 2015 - Dec 2019
3 years Germany
Full-Stack Engineer
Canyon Network UG (haftungsbeschränkt)
- Developed software using PHP, MySQL
- Developed customer dashboards (YouTube channel stats and earnings reports)
- Developed analysis tools for data from Google Analytics and YouTube Analytics
- Developed bridges between a LDAP server and customer dashboards, forum software (PhpBB) and Wordpress
Jun 2015 - Sep 2016
1 year 4 months Germany
IT Student
AMS Fuhrparkmanagement GmbH
- Studied applied sciences at Berlin School of Economics and Law
- Developed software using PHP, MySQL, Java (Android), Objective-C (iOS)
- Developed two native Android and iOS apps
- Implemented HTTP(S) RESTful API communication (client and server sided)
- Implemented on-device encryption
Jan 2015 - Present
10 years 6 months Berlin, Germany
Self-employed
dotManaged - Inhaber Christopher Mäuer
- At dotManaged I provided webhosting solutions and datacenter / network services to web agencies and resellers. I operated my own autonomous network (AS213377) with multiple points of presence in various German datacenters but mainly in Berlin-Tempelhof where I offered networking and colocation services. Today, I am providing consulting services for larger infrastructure projects especially in connection with software architecture migrations towards cloud technologies.
Jan 2013 - Jun 2015
2 years 6 months Germany
Full-Stack Engineer, System Administrator
I.I.H Trade Group GmbH
- Developed software using PHP, MySQL
- Designed and built customer and staff dashboards (billing and service management)
- Managed and maintained dedicated server systems and networks - worked with Sophos dedicated UTM appliances
- Worked with Cisco dedicated firewall appliances
- Worked with PfSense virtual firewall appliances
- Worked with CentOS for SDN (software defined networking)
Mar 2010 - Mar 2010
1 month Germany
Software Engineer Internship
IT & I GmbH
- Two week internship
- 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.
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), English, Sports, Math, Geography, Computer Science · Berlin, Germany
Certifications & licenses
Elastic Sales Engineer: Enterprise Search, Observability & Security
Elastic
Elastic Sales Professional
Elastic
Elastic Sales Specialist: Enterprise Search, Observability & Security
Elastic
YouTube Certified - Digital Rights
YouTube
Samsung Enterprise Alliance Program Silver Partner
Samsung
YouTube Certified - Audience Growth
YouTube
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