The technical stack does not matter.

Daniel Methfessel

Freelance Software Engineer

Development process

As a software engineer, I accompany the software development throughout the process:

  1. Requirements gathering and analysis
  2. Architecture and design (DB, API, UI/UX, ...)
  3. Implementation
  4. Automated and manual testing
  5. Integration and delivery/deployment
  6. Maintenance and evolution

Technical Experience

I can work on any layer and with any technologies which are requested:

  1. Backend: Python, .NET (C#, ASP) and JVM (Java, Kotlin), ...
  2. Storage: PostgreSQL, Oracle, Microsoft SQL Server, AWS S3, ...
  3. Frontend: Angular, React, Vue, WinForms, ...
  4. Platforms: Web, Desktop (Windows - privately I only use Linux and MacOS) - I have not yet been paid to work on mobile or embedded systems

Client projects

telius.ai January 2025 - January 2026 Node.js/Python/Vue Full Stack Developer

  • Integrated AI speech recognition and generation services for outbound calls and inbound support.
  • Designed and built a Prompt Builder enabling non-technical staff to create call scripts.
  • Developed a dashboard to monitor campaign performance, costs, and outcomes.

construction Node.js, Vue, Python, Hasura, Firebase, GCP Functions, PostgreSQL, ...

PT Software January 2025 - January 2026 Kotlin/Vue Full Stack Developer

Migrating, creating, and maintaining B2B web services for customers, e.g. the Rechnungsbahnhof for Deutsche Bahn.

construction Kotlin, Vue, AWS S3, PostgreSQL, ...

DB InfraGo January 2025 - January 2026 Kotlin/Vue Full Stack Developer

Migrating, creating, and maintaining B2B web services for customers, e.g. the Rechnungsbahnhof for Deutsche Bahn.

construction Kotlin, Vue, AWS S3, PostgreSQL, ...

Impulz Digital February 2024 - October 2024 Python Backend Developer

Implemented backend services for the Breitling online store, including product asset management (images, manuals, etc.) and order processing (payments, returns, etc.).

construction Python, React, AWS (Lambda, SQS, DynamoDB), PostgreSQL, ...

Breitling February 2024 - October 2024 Python Backend Developer

Implemented backend services for the Breitling online store, including product asset management (images, manuals, etc.) and order processing (payments, returns, etc.).

construction Python, React, AWS (Lambda, SQS, DynamoDB), PostgreSQL, ...

SIEDA GmbH June 2008 - December 2023 Fachinformatiker für Anwendungsentwicklung
(IT specialist for application development)

  • Design, realization, quality assurance, presentation and maintenance of the roster planning desktop application OC:Planner
  • including controlling features with the dashboard or by creating reports with OC:Report Writer,
  • the self-service web application OC:MyPlan (e.g. for requesting vacations)
  • and associated REST services (e.g. OC:MyCalendar to access the schedule on phone calendar apps),
  • especially the time recording and management service OC:Time
  • and also specialty modules for particular types of customers like the Tagesdienstplan providing daily (instead of weekly/monthly/yearly) view of the duty roster for staffing of rescue vehicles in the fire department.

construction C#.NET, SQL (Oracle, PostgreSQL, Microsoft SQL Server, ...), ASP.NET Core, C++, Java, Python, Python, Angular, ...

DaMe Software EURL au capital de 10.000€
928 096 411
FR 81 928 096 411