Timon R.-Database Developer – Research Project – Billing in Healthcare
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Experience
Database Developer – Research Project – Billing in Healthcare
MeQuEn GmbH
- Optimizing dynamically generated databases for logging
- Tools: MariaDB, C#, VisualStudio, VM, Docker, Windows, Linux
Backend Developer – Data Exchange Platform
MeQuEn GmbH
- Development of a RESTful API for creating and managing KVNRs
- Implementation of secure storage and transmission of KVNR data in compliance with data protection regulations (e.g., GDPR)
- Implementation of efficient validation and error handling to ensure correct number generation
- Integration of a logging mechanism for tracking system processes and ensuring auditability
- Design and implementation of a microservice architecture for integrating various data sources
- Development of an API gateway solution with Spring Boot for internal and external service communication
- Implementation of synchronization and harmonization methods for consistent data representation
- Implementation of error handling and retry mechanisms for increased reliability
- Implementation of a deletion concept for personal data in accordance with GDPR
- Tools: Java, Spring Boot, Maven, IntelliJ, Postman, OpenAPI/Swagger, PostgreSQL, OPNsense
Administrator – Part-time Projects for Various Customers
MeQuEn GmbH
- Setting up a wired and Wi-Fi network based on TP-Link Omada with a redundant architecture and Wi-Fi Mesh for seamless handover
- Configuring VLANs for segmentation (employees, guests, IoT) and QoS rules for critical applications
- Setting up and maintaining multiple web servers with load balancing, HTTPS via Let’s Encrypt, automated backups, caching (Redis, Memcached), and security measures (SSH hardening, fail2ban, security audits)
- Setting up a smart home with ZigBee Mesh, automation rules (motion, weather data), encrypted communication, and energy-optimized device integration
- Tools: Linux (Ubuntu Server, Raspberry Pi OS), TP-Link Omada Controller, Wireshark, Nginx, Caddy, Docker, Grafana, Home Assistant, Zigbee, MQTT
Backend Developer – Event Software
MeQuEn GmbH
- Software solution for accrediting assembly participants
- Definition and documentation of interfaces using Swagger/OpenAPI for an API-first approach
- Design and implementation of the backend architecture
- Testing and commissioning of the solution in the cloud
- Tools: Java, Spring Boot (Microservices), Swagger, MinIO, MariaDB, GitHub, Kubernetes, Linux
Backend Developer – Whistleblower Protection Software
MeQuEn GmbH
- SaaS development for various end customers, product lettly.de
- Implementation of cryptographic procedures according to BSI Standard TR 02102-1
- Implementation of security and access concepts in backend systems
- Implementation of a reporting office in accordance with HinSchG
- Integration of Stripe as a payment provider
- Tools: Java, Spring Boot (Microservices), Swagger, MongoDB, MinIO, MariaDB, GitHub, Kubernetes, Linux
Backend Developer – Voting Software
MeQuEn GmbH
- SaaS development for various end customers, product ballotly.de
- Implementation of cryptographic methods according to BSI Standard TR 02102-1 and Common Criteria (CC)
- Implementation of business logic according to electoral regulations
- Creation of a synchronization concept for distributed architecture
- Tools: Java, Spring Boot (Microservices), Swagger/OpenAPI, Redis, SSE, DDA, MinIO, MariaDB, GitHub, Kubernetes, Linux
Part-Time Project – Automotive Supplier
MeQuEn GmbH
- Design of a server-client-based software architecture for scalability across multiple workstations
- Development of interfaces for controlling industrial Zebra label printers
- Design and implementation of bidirectional data synchronization between the labeling system and MS-SQL database
- Software support and maintenance
- Tools: IntelliJ, Java, JavaFX, MS SQL, Linux Raspberry Pi OS, Raspberry Pi
Full-Stack Developer – Plant Monitoring
MeQuEn GmbH
- Further development of a platform supporting production across a distributed machine environment
- Development and commissioning of solutions for different plant generations
- Technology consulting for new plants
- Tools: Software architecture (EDA, DDD), Java, Spring Boot, MinIO, MySQL, MongoDB, MQTT, Mail-Proxy & Bridges, C#, Linux
Backend Developer – Documentation Tool
MeQuEn GmbH
- Development of a service app for documentation and reference purposes for machines, projects, real estate and facility management
- Template-based process documentation to ensure consistent quality
- Tools: Java, Spring Boot (Microservices), NodeJS, MongoDB, MinIO, MariaDB, GitLab, Docker, Docker-Compose, Linux
App Developer – Quality Assurance
MeQuEn GmbH
- Connected Android app for quality control in road and asphalt construction
- Design and implementation of the infrastructure and Android app
- Mathematical modeling of business logic
- Tools: Java, Android, BLE, SQLite, GitLab, Confluence, Linux
Full-Stack Developer – Process Management
MeQuEn GmbH
- Further development of a platform for process optimization and management in agricultural and forestry businesses
- Technology consulting
- Tools: Software architecture (EDA, DDD), Java 8, Angular, NodeJS, Apache Cassandra, MariaDB
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Automotive, Healthcare, Construction, Real Estate, and Manufacturing.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Quality Assurance, and Operations.
Summary
Added value through digitalization and software development - from the initial idea to the finished solution. I enjoy finding suitable solutions together with my customers! I am at home in the backend when it comes to web development - interfaces are my strength.
Main areas of activity: Developer, Software Architect.
Industries: Industry, plant engineering and packaging industry, health insurance, road construction and maintenance, agriculture and forestry, security-critical infrastructure, cyber security.
Skills
- Software Development: Java (12 Jahre), Spring Boot / Microservices (5 Jahre), Vb.Net (4 Jahre), Winforms (4 Jahre), Javascript (7 Jahre), Node.Js (2 Jahre), Typescript (2 Jahre), Vb6 (5 Jahre), C# (5 Jahre), Go (8 Jahre), Rust (2 Jahre), C/C++ (3 Jahre), Bash (6 Jahre)
- Databases: Ms Sql (3 Jahre), Postgresql (5 Jahre), Redis (2 Jahre), Sqlite (3 Jahre), Mariadb (10 Jahre), Mysql (10 Jahre), Mongodb (5 Jahre), Minio (3 Jahre), Graphql (1 Jahr)
- Data Expertise: Geodata, Database Design, Database Optimization
- Operating Systems: Linux (15 Jahre) => Bash, Sh, Daemon Development, Ubuntu, Debian, Archlinux, Embedded Linux, Linux Raspberry Pi Os
- Operating Systems: Windows (10 Jahre) => Powershell, Automated Testing With Junit, Postman
- Interfaces: Rest, Swagger, Openapi, Stripe, Paypal
- Other Tools & Techniques: Docker, Docker-Compose, Mqtt, Git, Github Including Build Pipelines, Jira, Confluence, Vs Code, Jetbrains Ides, Mail Proxies & Bridges, Grafana, Tp-Link Omada, Vlan, Zigbee, Nginx, Caddy, Bsi Standard Tr 02102-1
- Methodologies: Scrum, Kanban, Waterfall
Languages
Education
b.i.b. International College Bielefeld
Professional training in application development · Bielefeld, Germany
Certifications & licenses
Pen-Tester
Statistics
Experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Timon is based in Bielefeld, Germany and can operate in on-site, hybrid, and remote work models.
Timon speaks the following languages: German (Native), English (Advanced).
Timon has at least 7 years of experience. During this time, Timon has worked in at least 11 different roles and for 1 company. The average length of individual experience is 1 year and 8 months. Note that Timon may not have shared all experience and actually has more experience.
Based on recent experience, Timon would be well-suited for roles such as: Database Developer – Research Project – Billing in Healthcare, Backend Developer – Data Exchange Platform, Administrator – Part-time Projects for Various Customers.
Timon's most recent position is Database Developer – Research Project – Billing in Healthcare at MeQuEn GmbH.
In recent years, Timon has worked for MeQuEn GmbH.
Timon is most experienced in industries like Information Technology, Automotive, and Healthcare. Timon also has some experience in Construction, Real Estate, and Manufacturing.
Timon is most experienced in business areas like Information Technology, Product Development, and Quality Assurance. Timon also has some experience in Operations and Research and Development.
Timon has recently worked in industries like Information Technology, Automotive, and Healthcare.
Timon has recently worked in business areas like Information Technology, Product Development, and Quality Assurance.
Timon attended b.i.b. International College Bielefeld for Professional training in application development.
Timon has 1 certificate: Pen-Tester.
The availability of Timon needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
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The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 6 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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