Software developer · Technical systems specialist

I build digital products that connect software with the real world.

From SaaS platforms and artificial intelligence to 3D systems, IoT and mobile-first applications — I turn real processes into clear, secure and functional products.

15+

years of technical experience

8+

software projects

4

supported languages

Selected work

Real products. Real problems. Thoughtful solutions.

Each project shows a different side of my work — from architecture and business logic to visual experience and hardware–software integration.

Multi-Tenant SaaS & White-Label Platform

Pre-Launch

BusinessSite RC

A SaaS platform for creating and operating branded business websites with tenant-isolated administration, subscriptions, custom domains and controlled AI-assisted workflows.

Next.jsPostgreSQLStripeMulti-TenancyRLS
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Multi-tenant field operations

Online

BaumdienstFlow

A complete SaaS operations platform for field-service companies. It centralizes projects, job sites, employees, equipment, inventory, documents, working hours and daily reports while connecting office and field teams.

5 years of hands-on tree-care experience

Direct field knowledge translated into digital, automated workflows.

SaaS ArchitectureField ExpertiseRBACi18n
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Smart piano learning & playback system

Advanced Functional Prototype

Piano Core

A local-first smart piano appliance that connects to a digital piano over USB-MIDI and turns it into a modern learning, playback and practice system.

USB-MIDIRealtime playbackGuided PracticeESP32 LEDs
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Local-first personal AI runtime

Advanced Development · Current: M6 Long-Term Memory

HUGO

A portable personal AI runtime with one persistent identity, one governed memory system and authorized capability providers across bodies, devices and services.

Local-first AIIdentity & memoryProvider architectureSafety boundaries
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Automotive workshop SaaS

Pilot testing with 3 clients

PitlaneOne

A multi-tenant operations platform combining customers, vehicles, services, inventory, appointments, teams and invoicing in one focused workspace for automotive workshops.

Next.jsSupabase RLSE-InvoicingMulti-tenant SaaS
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AI to physical production

Live · v1.0

Pluto 3D Studio

A platform turning images or prompts into 3D models, reliefs and SVG files ready for printing, CNC or laser workflows.

Three.jsFastAPIAI PipelinesStripe
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More Projects

3D educational platform

In development

Ciao Marina

A learning experience for children combining a virtual 3D room, interactive education, progress and parental oversight.

Three.jsAI TutorCloudi18n

Digital patient transport

Active client project · Live

PulseMobile

A mobile-first website for a German patient transport service, combining clear services and pricing with a structured WhatsApp enquiry for personal confirmation.

Next.jsSanity CMSResponsive UXWhatsApp
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Local-first business software

Functional local-first product · Unreleased 0.1.0

Baustelle Calculator

A focused application for small construction and service businesses, connecting calculation, quotation, field execution and final invoicing in one clear workflow.

ReactTypeScriptLocal-firstBusiness Documents
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Capabilities

What I Build

I work across the product lifecycle: concept, architecture, interface, backend, testing and deployment.

01

SaaS & Business Software

  • Business workflows
  • Multi-tenant systems
  • Dashboards / operational software
02

AI & Intelligent Systems

  • AI/LLM integrations
  • Governed automation
  • Agent-assisted workflows
  • Local-first AI
03

Embedded / IoT / Hardware Integration

  • Raspberry Pi
  • ESP32
  • MIDI / devices
  • Sensors / physical-system integration
04

Production Engineering & QA

  • Databases
  • Auth / RBAC / RLS
  • Testing & CI/CD
  • Deployment / reliability / observability

Secondary work

Robotics, IoT and Digital Fabrication

Physical prototypes and engineering experiments remain available in a separate space without competing with the core software portfolio.

Open Engineering Lab

About

Technical experience. Builder mindset.

I’m Redion Çekrezi. After more than 15 years of hands-on work with electronics, television systems, CCTV and technical equipment, I expanded that experience into software development — most projects in this portfolio I conceived, built and operated independently; client projects are labeled as such. My current focus is software, AI and technical systems.

Focused on software, AI and technical systems; open to fitting teams and projects.

Contact

Have a product to build or an existing project to finish?

Send me a short outline of the problem, users, and outcome you need. I can support the work from architecture and UI through backend, testing, and deployment.

Project reference

BaumdienstFlow

Your details are used only to respond to this enquiry.

Software Developer | SaaS, AI & Technical Systems | Redion Çekrezi