PCT

From concept to code — and beyond! We support companies and teams through every phase of modern web development. From initial ideas, requirements analysis, and architecture design to deployment and long-term maintenance — we bring over 15 years of experience with Ruby on Rails, complex data models, API design, and scalable infrastructure.

Whether it’s a fresh greenfield build or an evolving legacy system, we help you understand, build, improve, and future-proof your software. Building and running web platforms is our daily business — as is writing clean, maintainable code.

Long-term support & operations: After go-live, we remain your technical partner — reliable, pragmatic, and committed to long-term stability.

We own our technology. The technology we focus on is Ruby on Rails — a stable, mature framework that continues to power countless web applications and backend services for mobile apps. Its promise has always been “The One-Person Framework” — empowering small teams to move fast and deliver cost-efficient MVPs within days. With the right experience, Rails applications can scale to serve hundreds of thousands of users and millions of requests per day.
With Rails, PostgreSQL, and Sidekiq, almost anything can be brought to life — cleanly, efficiently, and built to last. Operations illustration
Running a Rails application can be a rewarding and exciting endeavor — especially when it’s done right.

Good people, good software*: We maintain strong connections within the Rails community — in the Rhine-Main area and beyond. Whether you’re looking for technical input, project support, or just a good conversation among developers, good networking is where great projects begin.

* Wise claim of our friends and partners at bitbirds.berlin 👋🏻

It's your turn now! Have an idea, a project, or maybe the next big thing in mind? Let’s make it real. Reach out to us today — great products start with a simple conversation.

Service

How we work: Professional software doesn’t happen by accident. It’s the result of experience, discipline, and craftsmanship. Like in any skilled trade, an experienced developer knows how to approach problems — often solving them conceptually before they ever appear in code.

We work with agile methods and a transparent, collaborative process. Requirements are captured in tickets and refined together with the client.
Development takes place in Git repositories hosted on GitHub or GitLab, giving you full insight into every line of code.

Each feature is implemented with automated tests, ensuring reliability and future extensibility. Short development cycles and frequent deploys — sometimes multiple times a day — are part of our workflow. Every live system is monitored with exception tracking and performance metrics. The result: software that’s maintainable, documented, and always in a production-ready state.
Engineering & Architecture
  • Requirements Engineering, RFCs & Concepts
  • Domain Modeling & Data Architecture
  • Service Objects & Clean Code Principles
  • Refactoring & Legacy Code Modernization
  • Performance Profiling & Query Optimization
Integration & Infrastructure
  • Integrating REST & GraphQL APIs
  • Background Jobs (Sidekiq, SolidQueue, Resque)
  • Event-Driven & Async Workflows
  • CI/CD Pipelines (GitHub Actions, Jenkins)
  • Monitoring & Observability (Prometheus, Grafana, Sentry)
Scaling & Collaboration
  • Horizontal Scaling & Load Balancing
  • PostgreSQL & Redis Performance Tuning
  • Cloud Deployments (Heroku, AWS, Docker)
  • Agile / Scrum Project Support
  • Code Reviews, Pair Programming, Knowledge Transfer

ChurchCurator

PCT develops and maintains ChurchCurator, a cloud-based multi-tenant platform used by hundreds of church members and team leaders for over a decade.

The system manages people, households, and groups — linking everything from attendance and membership data to documents and permissions. Each tenant runs on its own secure subdomain with full data isolation. Background services handle geocoding, file storage, mail delivery, and periodic maintenance tasks.

ChurchCurator has grown into a mature SaaS product with a focus on scalability, security, and long-term maintainability, powering communities that rely on it every day.

Team

Meet the Crew:
Owner PCT Hanau: Andreas Schwarzkopf

The Coder

Andreas

Software Development, Databases

The "Code Crafter" – shaping the business domain into running software. Andreas has 15 years of experience with web platforms and databases and basically turns coffee into code.

Owner PCT Hanau: Andreas Schwarzkopf

The Negotiator

Alex

Consulting & Requirements Engineering

Our "Requirement Ranger" Alex is the perfect translator between customer and team. With over 10 years of experience as a Tech PO, Alex transforms ideas into product features.

Owner PCT Hanau: Andreas Schwarzkopf

The Illusionist

Lennard

Creative Arts, Software Development

Lennard is our "Pixel Paladin". Being the youngest in the crew isn’t always easy, but creative ideas and a quick mind make our “Junior” stand out.

Owner PCT Hanau: Andreas Schwarzkopf

The Mechanic

Nick

Software Development, Operations

As the "Tech Transformer" Nick sets the trends for new technologies. No matter how new it is — Nick already considers it old news. With 15 years of platform development experience, he’s a true pillar of the dev team.

Owner PCT Hanau: Andreas Schwarzkopf

The Support

Robin

Software Development, Frontend

Robin is our “Reinforcement Ranger.” Whenever a project needs an extra hand, he’s the cavalry. With decades of experience, he’s one of the Rails elders. Also: Your argument is invalid — Robin does JavaScript.

Contact

Owner:
Dipl.-Inf. Andreas Schwarzkopf
Alois-Funk-Straße 7
63457 Hanau
Germany

Phone: +49 176 – 62 19 50 62
E-Mail: a.schwarzkopf.de.de@gmail.com
Website: www.as-hu.de
Owner PCT Hanau: Andreas Schwarzkopf
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