Software Developer

Marcin Walczak

18+ years building web applications, mobile apps, and enterprise platforms. Currently running production systems in healthcare, legal tech, and logistics.

Web Mobile Real-time iOS Android
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Projects

Production Systems

ALLDOQ

alldoq.com · Co-founder

Enterprise document management and collaboration platform for healthcare and legal professionals. Secure file sharing across organisations, role-based access control, real-time collaboration, medical imaging support, and time tracking with invoicing.

Web Enterprise Healthcare Legal Documents

Who It's For

medical Healthcare organisations
legal Law firms & legal teams
roles Granular role-based access
multi-org Cross-organisation sharing

Key Features

  • Secure document sharing with RBAC
  • Case-based file organisation
  • Medical imaging viewer
  • Real-time collaboration & presence
  • Time tracking & invoicing
  • Semantic document search

Highlights

  • Encryption at rest for sensitive data
  • Document analysis & extraction
  • Background document processing
  • Secure cloud file storage
  • Audit logging & access control
  • Radiology archive import

ALLDOQ Legal

Evidence Management Platform · Co-founder

A dedicated evidence and legal document management platform for law firms — from client intake to document generation, collaborative editing, and billing.

Web Legal Evidence Documents Billing

Case Workflow

  • Case creation with parties & contacts
  • Client, defendant & company management
  • Worklist & task management per case
  • Case sharing across organisations
  • Audit history & change tracking
  • Calendar & scheduling integration

Documents

  • Rich document editor with templates
  • Real-time collaborative editing
  • Comments, mentions & suggestions
  • Export to Word & PDF
  • Medical & radiology document support
  • Email template management

Billing & Admin

  • Time tracking per case & task
  • Billable hours & invoicing
  • Contact book management
  • Role-based access control
  • Multi-organisation support
  • Case import & templates

dropr.cloud

dropr.cloud · Founder

Social network and logistics platform for delivery couriers. Real-time communication, GPS journey recording, emergency assistance, and live friend mapping. Web app and native iOS/Android.

Web iOS & Android Real-time Maps & GPS Social

Platforms

web Full web application
mobile Native iOS & Android
auto Android Auto integration
i18n English, Polish, German

Key Features

  • Real-time social feed & direct messaging
  • GPS journey recorder with route maps
  • Emergency SOS with nearby discovery
  • Live friends map + navigate-to-friend
  • Courier-friendly places discovery
  • Biometric auth (Face ID / Touch ID)

Highlights

  • Multi-provider OAuth login
  • 3D maps with tilt & pitch
  • Live user presence tracking
  • Video, audio & image posts
  • Push notifications
  • Dark & light theme

Contact

Get in touch

Have a project in mind? Send me a message.