03.01.2025 aktualisiert

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100 % verfügbar

Full Stack Developer & Web Consultant (Python, Ruby on Rails, JavaScript)

Neubiberg bei München, Deutschland
Weltweit
BSc in Computer Science with a focus on Software Engineering
Neubiberg bei München, Deutschland
Weltweit
BSc in Computer Science with a focus on Software Engineering

Profilanlagen

2024-11-07 CV — Christoph Schiessl.pdf

Skills

JavascriptAgile MethodologieAmazon Web ServicesCSSBeratungLinuxDjangoHypertext Transfer Protocols (HTTP)PythonPostgresqlNode.JsRuby On RailsRedisRubySeleniumShell-ScriptWeb ApplikationenTest-Driven DevelopmentTailwindReactJSBackendPlaywrightApache KafkaFront EndSoftware Version ControlDocker
If you hire me, you can rely on more than a decade of experience, which I have collected working on web applications for many clients across multiple industries. My involvement usually focuses on hands-on development work using various technologies like Python, Ruby, PostgreSQL, or whichever technology we determine to be the best tool for the job. Furthermore, you can also depend on me in an advisory capacity to make educated technological choices for your backend and frontend teams. Lastly, I can help you transition to or improve your agile development processes.

Sprachen

DeutschMutterspracheEnglischverhandlungssicher

Projekthistorie

Project “Threat Intelligence for Product & Solution Security”

Siemens AG

Industrie und Maschinenbau

>10.000 Mitarbeiter

  • Internal web application to inform employees about sensitive security issues.
  • Takeover of the existing project and subsequent improvements and extensions.
  • Rewrite the whole frontend based on a modern SPA framework.
  • Integration with internal systems such as LDAP, S/MIME emails, and  SAML.
  • Establishment of Continuous Integration & Delivery pipeline (GitLab CI).

Identity Provider (IdP) Developer + DevOps Engineer

Xempus AG

Banken und Finanzdienstleistungen

50-250 Mitarbeiter

  • Suite of interconnected SaaS applications for the German insurance market.
  • Focus on digitalization of bAV (life insurance) and bKV (health insurance).
  • Composition of micro-services asynchronously connected with Apache Kafka.
  • I introduced a new IdP Service to enable centralized authentication/authorization.
  • Led client’s effort to merge many single-tenant into one multi-tenant database. 
  • Collaboration with the team to build UIs around the idea of micro-frontends.

Project “Siemens Extensible Security Testing Appliance”

Siemens AG

Industrie und Maschinenbau

>10.000 Mitarbeiter

  • Ruby on Rails application to drive and control the appliances sold to customers.
  • Customers used the appliances to detect suspicious traffic in their networks.
  • Instead of deployments, the appliances had to have the ability to self-update.
  • Our app had to control many dockerized network scanners and other tools.
  • Intently focused on the security of our app (architecture, CSRF protection, ...).

Kontaktanfrage

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