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Alois Flammensböck-Software Architect / Backend Developer

Alois Flammensböck - Software Architect / Backend Developer - profile avatar
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Munich, Germany

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Experience

May 2026 - Present

Software Architect / Backend Developer

GEO API

Position Summary
Software Architect / Backend Developer at GEO API
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • Design and implementation of a Laravel backend API for provider-based geo search, feature details, boundary geometries and neighborhood detection.
  • The API serves as a server-side proxy, cache and enrichment layer, protecting credentials for external geo services and persisting features, localizations, geometries, hierarchies and neighborhood relationships in MariaDB.
  • Key areas included normalization of autocomplete and feature data, caching strategies for expensive boundary/polygon requests, spatial processing of GeoJSON and MultiPolygon geometries, as well as neighborhood detection using hierarchies, bounding box filters and topology checks.
  • Additionally, separate production and diagnostic endpoints were created, along with status and error catalogs, discovery logging, a Docker development stack, API documentation, and unit and feature tests.
  • Technologies: PHP 8.3, Laravel, REST API, geo data API, GeoJSON, MariaDB Spatial, Eloquent, Laravel Queues, PHPUnit, Mockery, Docker, Docker Compose, API design, geocoding, boundary data, spatial queries.
Apr 2026 - Present

Software Architect / Web Developer

Digital Object Registry Modernization / New Customer Portal

Position Summary
Software Architect / Web Developer at Digital Object Registry Modernization / New Customer Portal
Industries
Real Estate
Business Areas
Information Technology
Product Development
  • Gradual modernization of an existing PHP web application for digital object and facility management.
  • Designed a modernization strategy without a full rebuild and implemented a standalone Vue customer portal with a clear API boundary to the legacy application, which still handles login, sessions, tenant logic, permissions, data storage and document delivery.
  • The portal includes dashboard, feedback, documentation, cleaning plans, records, chemicals, safety data sheets and employee training.
  • Technically, JSON API endpoints, resolvers, server-side authorization layers, site/area selection, document previews and secured write actions were created, along with near-production DEV/dev test environments using Docker Compose, Apache, PHP-FPM, MariaDB, MailHog, TLS and proxy operation.
  • Technologies: PHP, Vue 3, Vite, TypeScript, REST API, MariaDB, Apache, PHP-FPM, Docker, Docker Compose.
Mar 2026 - Present

Software Developer / Architect

Real Estate Search App

Position Summary
Software Developer / Architect at Real Estate Search App
Industries
Information Technology
Real Estate
Business Areas
Information Technology
Product Development
  • Designed and implemented a Vue 3 / TypeScript real estate search app for integration into an existing website and CMS environment.
  • The application combines map view, list view, filtering, sorting, exposé navigation and shareable search states into a seamless search and advisory process.
  • Key points included feature-oriented structure, desktop/mobile UX, linking map and list, marker/cluster selection, bounding-box-based result lists, reliable return from exposés, as well as rules for discrete property marketing and reduced location accuracy.
  • For location and radius search, components based on an external geo data provider were designed, such as autocomplete, GeoJSON/boundary processing, radius/region search and a server-side Laravel proxy approach.
  • Supplemented by Vitest / Playwright tests, CMS mocks and Vite build pipelines.
  • Technologies: Vue 3, TypeScript, Vite, Pinia, Vue Router, Tailwind CSS, Leaflet, MarkerCluster, GeoJSON, geo data API, REST API, Laravel concepts, CMS integration, Vitest, Playwright, i18n, responsive design, mobile UX.
Sep 2024 - Jul 2025
Germany

Blazor / ASP.NET Web API – SAP Integration

Ottobock

Position Summary
Blazor / ASP.NET Web API – SAP Integration at Ottobock
Industries
Healthcare
Manufacturing
Business Areas
Information Technology
  • Architecture concepts to encapsulate international variants, country-specific processes and ERP integration in a single codebase.
  • Contributed to module development and API integration.
  • Technologies: SAP Business One, .NET, C#, Blazor Server, DevExpress, ASP.NET Web API, JWT, JavaScript, MS SQL Server, SQL, ASP.NET, TypeScript, JavaScript.
Oct 2022 - Jan 2026

.NET / Blazor web application for managing a family center

Position Summary
.NET / Blazor web application for managing a family center
Industries
Government and Administration
Business Areas
Information Technology
  • Design, implementation and operation of a production management application with clear separation of business logic, UI and infrastructure.
  • Containerized deployment, automated tests and continuous development.
  • Technologies: C#, .NET 8, ASP.NET Core, Blazor/Razor Components, MudBlazor, Entity Framework Core, HTML, CSS, PostgreSQL, Docker, Docker Compose, NUnit, Moq, SOLID, TypeScript, JavaScript.
Jan 2022 - Apr 2023
Germany

MS Project / Outlook Synchronization

Holert GmbH

Position Summary
MS Project / Outlook Synchronization at Holert GmbH
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • Further development of a service application for bidirectional task synchronization.
  • Focus on data consistency, transaction safety, performance, and monitoring.
  • Technologies: C#, .NET, Microsoft Graph API, Microsoft 365, MS Project Server, Windows Services, MSSQL, T-SQL, ASP.NET.
Jan 2019 - Aug 2020
Germany

POC Load & Performance Tests via Citrix

Bavarian Justice

Position Summary
POC Load & Performance Tests via Citrix at Bavarian Justice
Industries
Government and Administration
Business Areas
Quality Assurance
  • Designed and evaluated automated load tests for a Citrix-based business application.
  • Developed a reusable testing approach.
  • Technologies: Citrix, Citrix API, Silk Performer, load and performance testing, test frameworks.
Jan 2018 - Jan 2026
Germany

Data Analysis & Reactive Extensions

Siemens Energy

Position Summary
Data Analysis & Reactive Extensions at Siemens Energy
Industries
Energy
Business Areas
Information Technology
  • Architectural consulting for a high-performance .NET desktop application to analyze large measurement datasets.
  • Structured signal pipelines with Reactive Extensions, separated functional responsibilities, and optimized performance.
  • Technologies: WinForms, C#, .NET, Reactive Extensions, TeeChart, data visualization, measurement data analysis, desktop application.
Jan 2015 - Aug 2020
Munich, Germany

ICLx – Smart Client to Web Migration

BMW AG

Position Summary
ICLx – Smart Client to Web Migration at BMW AG
Industries
Automotive
Business Areas
Information Technology
Product Development
  • Architectural evaluation of the transformation to a web-based architecture using React and .NET.
  • Analyzed migration paths, removal of database-side logic, and scalability.
  • Technologies: software architecture, C#, .NET, React, TypeScript, HTML, CSS, distributed systems, MSSQL, T-SQL, ASP.NET.
Jan 2014 - Jan 2026
Munich, Germany

CTO & Overall Responsibility

iXTS GmbH

Position Summary
CTO & Overall Responsibility at iXTS GmbH
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • Technical overall responsibility for architecture, technology stack, and quality standards across multiple parallel projects.
  • Defined architecture guidelines, established consistent build, test, and release processes, and actively contributed to analysis, design, and implementation of core system components.
  • Focused on sustainable architectural decisions, clean architecture, maintainability, and structural stability.
  • Designed and implemented a modular reference architecture for Blazor Server and WebAssembly.
  • Defined overall architecture, eventing concept, module and feature separation, infrastructure encapsulation, security aspects, and Docker-based deployments.
  • Architected and further developed an SPA for analyzing Jira and Tempo data.
  • Migrated from React/TypeScript to Blazor Server with a clear separation of client, server, and REST API.
  • Technologies and skills: software architecture, system architecture, C#, .NET, CTO role, lead developer, team leadership, HTML, CSS, JavaScript, eventing, framework development, clean architecture, clean code, Blazor Server, Blazor WebAssembly, OWASP, API development, Entity Framework, Microsoft Authentication Library, Syncfusion, Docker, Bootstrap, SOLID, secure design, Atlassian Jira, Tempo, React, TypeScript, Bootstrap, REST, Jira API.
Jan 2013 - Apr 2025
Germany

Editorial System, Distributed SPA Architecture

Westfunk GmbH

Position Summary
Editorial System, Distributed SPA Architecture at Westfunk GmbH
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • Overall architecture of a multi-tenant system with central administration and multiple instances.
  • Evolution from AngularJS to React, backend on .NET with a focus on scalability and performance.
  • Technologies: AngularJS, React, Redux, .NET, C#, JavaScript, TypeScript, HTML, CSS, PostgreSQL, distributed systems, REST, software architecture, ASP.net.
Jan 2013 - Oct 2023
Germany

Architecture Consulting for PHP Time Tracking System

InMotion GmbH

Position Summary
Architecture Consulting for PHP Time Tracking System at InMotion GmbH
Industries
Information Technology
Professional Services
Business Areas
Information Technology
Product Development
  • Analysis of a legacy PHP web application.
  • Support for extensions and design of a full rewrite to reduce technical debt.
  • Technologies: PHP, HTML, CSS, JavaScript, MySQL, software architecture, software migration, TypeScript, JavaScript.
Jan 2013 - Jan 2018
Germany

Monolith Transformation of ePaper System

MediaCarrier GmbH

Position Summary
Monolith Transformation of ePaper System at MediaCarrier GmbH
Industries
Media and Entertainment
Business Areas
Information Technology
Product Development
  • Gradual migration of a PHP monolith to a containerized, horizontally scalable architecture with C# on Linux.
  • Technologies: Docker, C#, PHP, HTML, CSS, SASS, Mono, Linux, distributed systems.
Oct 2007 - Aug 2014
Munich, Germany

ICLx – Smart Client Vehicle Security

BMW AG

Position Summary
ICLx – Smart Client Vehicle Security at BMW AG
Industries
Automotive
Business Areas
Information Technology
  • Architecture and implementation of a global .NET client/server application with high demands on performance and maintainability.
  • Technologies: C#, .NET, WinForms, WPF, WCF, distributed systems, MS SQL Server, T-SQL, IIS, ASP.net.
Jan 2005 - Jan 2018
Germany

OPC-based Measurement Data Processing

Siemens

Position Summary
OPC-based Measurement Data Processing at Siemens
Industries
Manufacturing
Business Areas
Information Technology
Product Development
  • Developed a Windows application suite for filtering, transforming, and visualizing measurement data provided via OPC-DA/UA in industrial plants worldwide.
  • Technologies: Delphi, OPC DA, OPC UA, data processing, data visualization.
Jan 2005 - Jan 2016

PC Condition Monitoring

Kontron

Position Summary
PC Condition Monitoring at Kontron
Industries
Manufacturing
Business Areas
Information Technology
Product Development
  • Development of a client/server solution for hardware monitoring of industrial PC systems with several thousand installations worldwide.
  • Technologies: Delphi, C#, HTML, CSS, JavaScript, Windows Services, Device Driver Development.

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Manufacturing, Information Technology, Automotive, Professional Services, Energy, and Government and Administration.

Manufacturing
Information Technology
Automotive
Professional Services
Energy
Government and Administration
Profile match chart

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, and Quality Assurance.

Information Technology
Product Development
Quality Assurance
Profile match chart

Summary

I have been working for over twenty years as a software developer and software architect, focusing on complex web, desktop and backend applications. My focus is on technically challenging systems using C#, .NET, Blazor, PHP/Laravel, TypeScript and modern web technologies.

I turn business requirements into stable, maintainable software solutions, develop backend components, APIs and web interfaces, and integrate external systems, existing applications and mature system landscapes.

On the technology side I work with C#, Blazor, Entity Framework, WinForms, WPF, PHP, Laravel, TypeScript, JavaScript, HTML/CSS as well as React, Angular and Vue. I also use Vite, Pinia, Tailwind CSS, Leaflet, Vitest, Playwright, SQL Server, PostgreSQL, MariaDB, Docker and Docker Compose.

In addition to new features, I modernize and extend existing applications. This includes refactorings, API interfaces for legacy systems, performance optimizations, security and permission concepts, as well as interactive domain interfaces with maps, search, filter and list logic.

I work both independently and in a team, actively contributing to architecture, code reviews and the sustainable evolution of the codebase.

Skills

  • C# And .Net, Asp.Net, Blazor, Entity Framework

  • Rest Apis

  • Php, Laravel And Legacy Php Web Applications

  • Typescript, Javascript, Html And Css

  • Vue, React And Angular

  • Vite, Pinia, Tailwind Css

  • Vitest And Playwright

  • Sql Server, Postgresql, Mariadb

  • Docker And Docker Compose

  • Development Of Web Applications Based On Asp.Net Core And Blazor

  • Development Of Modern Frontends With Vue And Typescript

  • Backend And Api Implementation

  • Api Integration

  • Integration Of External Systems And Interfaces

  • Further Development And Modernization Of Existing Applications

  • Implementation Of New Modules In Existing Applications

  • Industry And Technical Applications

  • Automotive Industry

  • Energy Production And Measurement Data Processing

  • Radio Communications

  • Press And Publishing

  • Social Services And Non-Profits

  • Facility Management / Property Maintenance

  • Real Estate

Languages

German
Native
English
Intermediate

Statistics

Experience

Total positions 16
Experience in Manufacturing 14 y
Avg length 5 y 9 m
Longest experience 13 y

Global Experience

Countries worked in 1 (Germany)
Primary country Germany

Expertise

Recent roles Software Architect / Backend Developer, Software Architect / Web Developer, Software Developer / Architect
Main industries Manufacturing, Information Technology, Automotive
Main business areas Information Technology, Product Development, Quality Assurance

Profile

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Frequently asked questions

Have questions? Find more information here.

Alois is based in Munich, Germany and can operate in on-site, hybrid, and remote work models.
Alois speaks the following languages: German (Native), English (Intermediate).
Alois has at least 21 years of experience. During this time, Alois has worked in at least 16 different roles and for 14 different companies. The average length of individual experience is 1 year and 4 months. Note that Alois may not have shared all experience and actually has more experience.
Based on recent experience, Alois would be well-suited for roles such as: Software Architect / Backend Developer, Software Architect / Web Developer, Software Developer / Architect.
Alois's most recent position is Software Architect / Backend Developer at GEO API.
In recent years, Alois has worked for GEO API, Digital Object Registry Modernization / New Customer Portal, Real Estate Search App, Ottobock, and Holert GmbH.
Alois is most experienced in industries like Manufacturing, Information Technology, and Automotive. Alois also has some experience in Professional Services, Energy, and Media and Entertainment.
Alois is most experienced in business areas like Information Technology, Product Development, and Quality Assurance.
Alois has recently worked in industries like Information Technology, Professional Services, and Energy.
Alois has recently worked in business areas like Information Technology and Product Development.
Alois is immediately available full-time for suitable projects.
Alois's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.
To hire Alois, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1200
900
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Market avg: 888-1048 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.