DEENPL
Intro call

Software · Infrastructure · IT consulting

Software and IT that simply runs.

I'm Marcel Wieck. I build custom software, run the infrastructure behind it and help companies get their IT in shape. One person, end to end, without agency overhead.

Free intro call See services
  • Code + opsdevelopment and servers from one source
  • Desktop to webapplications, portals, integrations
  • 1 contactfrom first idea to a running system

01Sound familiar?

Typical reasons clients call me

  • Manual work eats your time

    Spreadsheets, copy & paste between systems, e-mail as a workflow – every single day.

  • Software nobody dares to touch

    A grown system whose developer has left. Every change feels like a risk.

  • Servers run – somehow

    Nobody quite knows how, backups are untested, updates keep getting postponed.

  • IT decisions get stuck

    Without an IT lead, nobody weighs the options and gives a clear recommendation.

  • AI – but where does it pay off?

    Lots of hype, little clarity, and real data-protection concerns.

  • Something else entirely?

    Tell me about it – a short call quickly shows whether I can help.

    Book a call

02Services

Four areas, one point of contact

Book a single service or combine them – that's often the advantage: whoever writes the software also knows the server it runs on.

Custom software & web apps

Tools that fit the way you work – instead of processes bent around software.

  • Internal tools, dashboards & portals
  • APIs and integrations
  • Desktop and web applications
  • Modernising existing software

Infrastructure & DevOps

Stable, documented systems you understand – that don't depend on a single person's memory.

  • Server and cloud setup, migrations
  • Self-hosted e-mail and file servers in the EU
  • Docker, Kubernetes, CI/CD
  • Monitoring, backups, updates

IT consulting & interim IT lead

A technical partner when you don't have an IT lead of your own – for a project, a few days a month or as a bridge.

  • IT strategy and architecture
  • Security and infrastructure review
  • Tool and vendor selection
  • Interim Head of IT

Automation & AI

Hand repetitive work to machines – with AI where it actually helps, and with privacy in mind.

  • Workflow automation
  • Connecting your systems
  • AI assistants on your own data
  • Privacy-friendly setups (EU, on-premise)

03Process

How we work together

  1. 01

    Intro call

    30 minutes, free and without obligation. You tell me what's not working – I tell you honestly whether and how I can help.

  2. 02

    Analysis & offer

    I take a closer look and send a clear offer with scope, timeline and price.

  3. 03

    Delivery

    In short iterations with regular check-ins. You see results early and can steer.

  4. 04

    Handover & support

    Documentation, training and a clean handover – plus ongoing maintenance if you want it.

Engagement

Ways to work with me

  • ProjectA clearly defined task with a fixed scope. Ideal for new software, migrations or setups.
  • RetainerA monthly budget for maintenance, updates, monitoring and small improvements.
  • Consulting & interimSupport by the day as an IT consultant or as an interim IT lead.

Pricing after a short call – depending on scope and duration, always transparent up front.

04About

A developer who also runs things

I build software and run the systems it lives on – from the first idea to stable day-to-day operation.

What I care about is that things work day to day: clear for the people using them, properly documented and built so they're still maintainable years from now.

That's why I think about development and operations together – and explain technology so you can make good decisions.

What you get

  • Direct contact – you always talk to the person doing the work.
  • Development and operations from one source, without friction.
  • Understanding of business processes, not just technology.
  • Documentation and handover – no lock-in to me.
  • Privacy and security built in from the start.

Toolbox

Technologies I work with

Languages
  • Rust
  • TypeScript
  • Python
  • PHP
  • C++
Web & APIs
  • HTML/CSS
  • REST APIs
  • WebSockets
  • Single-page apps
Data
  • PostgreSQL
  • MySQL
  • SQLite
  • Redis
Operations
  • Linux
  • Docker
  • Nginx
  • CI/CD
  • Monitoring
  • Backups
E-mail & security
  • E-mail servers
  • TLS
  • OAuth2
  • OpenPGP
Interfaces
  • Desktop apps
  • Web frontends
  • Dashboards

05FAQ

Frequently asked questions

Who do you work for?

Small and mid-sized companies without a large IT department of their own – and as reinforcement for existing teams.

Do you work remotely or on site?

Mostly remotely. On-site meetings are possible by arrangement.

Do you take over existing systems?

Yes. It starts with a review – afterwards you know where you stand and what makes sense.

Who owns the software you build?

You do. You receive the source code and documentation, so you never depend on me.

Which languages can we work in?

German, English and Polish.

06Contact

Tell me about your project

A few sentences are enough. I usually reply within one business day – with an honest assessment and a time slot for the intro call.

Prefer e-mail?
[email protected]