OPERATIONAL SYSTEMS · DESIGNED, BUILT, RUN

I rebuild how companies run.

Operations redesigned as production systems — not decks, not pilots. When the spreadsheets, hand-offs and swivel-chair work finally break, this is who gets called.

FIXED PRICE · 2 WEEKS · WRITTEN VERDICT
Sinisa Devcic
Sinisa Devcic
SYSTEMS ARCHITECT
production · precision converting, medical & diagnostics
Kenosha Tapes — precision converting platform built and run by DynConnect
99.9%
UPTIME, 10 YEARS RUNNING
25+
YEARS IN PRODUCTION
130+
SYSTEMS SHIPPED
16
INDUSTRIES
IN PRODUCTION RIGHT NOW

A few of the systems I designed, built, and still run.

HelloPrint — European e-commerce print platform
HELLOPRINT · E-COMMERCE
Blackware — prepress automation for print and packaging
BLACKWARE · PREPRESS
Zipp Labs — smart access and video doorbell platform
ZIPP LABS · IOT
DoorLink — NFC visitor calling for the front door
DOORLINK · REAL-TIME
ParkAlert — connected parking reminder device
PARKALERT · IOT
Kenosha Tapes — precision converting for diagnostics and medical devices
KENOSHA · MANUFACTURING
Altavia — retail marketing production platform
ALTAVIA · RETAIL
Drukland — online print ordering platform
DRUKLAND · PRINT
Buhrs — mailroom and finishing systems
BUHRS · INDUSTRIAL
Ideja — webshop and locking plan systems
IDEJA · WEBSHOPS
Thinkstore — e-commerce operations
THINKSTORE · RETAIL
Rabo & Co — financial services platform
RABO & CO · FINANCE
Pantarijn — education platform
PANTARIJN · EDUCATION
Beveiligd — security services platform
BEVEILIGD · SECURITY
IBO Care — healthcare operations platform
IBO CARE · HEALTHCARE
Flyerzone — print e-commerce storefront
FLYERZONE · PRINT
Printing.com — print production platform
PRINTING · PRINT
Activo — operations platform
ACTIVO · OPERATIONS
IT Mannetje — managed IT services
IT MANNETJE · IT SERVICES
MG — automotive retail platform
MG · AUTOMOTIVE

Your operation already runs on systems. Most were never designed.

01 · THE PROBLEM
GLUE-01

Glue-work

Your best people spend their days re-typing data between tools that were never introduced to each other. That's not a staffing problem — it's a missing system.

SWVL-02

Swivel-chair operations

Order in one screen, status in a second, invoice in a third. Every swivel is a delay, an error budget, and a person who can never take a holiday.

PLOT-03

Pilot purgatory

The AI demo impressed everyone eight months ago. It still isn't in production, because demos are easy and systems are not.

One method. Four stages. No theater.

02 · THE METHOD
D-01

Diagnose

Two weeks inside your operation. Where the hours go, where the errors breed, what the real constraint is — which is never what the brief said.

Output: written findings, quantified, with a verdict.
A-02

Architect

The target system on one page: components, flows, owners, failure modes. Boring technology chosen on purpose. Decisions documented with their reasoning.

Output: architecture + build plan you could shop around.
B-03

Build

Shipped in slices, each one live in production before the next begins. Your team operates slice one while slice two is built. No big-bang cutover, ever.

Output: a running system, documented and handed over.
R-04

Run

Monitored, maintained, evolved. The system earns its keep quarter after quarter — or you'll see exactly why in the numbers, because everything is measured.

Output: uptime, telemetry, and a quarterly systems review.

Selected systems

03 · TRANSFORMATIONS, NOT PROJECTS
E-COMMERCE200+ FTE10 YEARS RUNNING

Unifying a 200+ employee e-commerce operation

A growing e-commerce company serving multiple European markets had disconnected systems — NetSuite ERP, PrestaShop webshop, invoicing, payment gateways — each drifting apart daily. I architected the end-to-end event-driven sync, built the finance core, and run the production infrastructure.

READ THE CASE STUDY
HelloPrint storefront — the European print e-commerce platform behind the unified operation
200+
Employees supported
80+
Production servers
99.9%
Uptime SLA
10Y+
Client partnership
PRINT & PACKAGINGGLOBAL900+ INSTALLS

Global prepress automation, 900+ installations

Print and packaging companies worldwide need automated PDF preflight, correction, and production tracking. Deep callas pdfToolbox integrations eliminated manual prepress work across 900+ installations — years of reliable operation without spec-level regressions.

READ THE CASE STUDY
Blackware prepress automation product site
900+
Installations
10Y
In production
0
Spec regressions
24/7
Automation
IOT & ACCESSFULL STACK14 MONTHS

Smart video doorbell & access control, from scratch

A hardware company needed a complete smart access platform: video doorbell with sub-second calling, NFC-based access, and a management dashboard. Outdoor, all-weather, patent-pending. One engineer owning the full stack — firmware to cloud to apps.

READ THE CASE STUDY
Zipp Labs smart access platform site
<200ms
Video latency
14mo
Idea → shipping
99.9%
Unlock success
1
Patent filed
REAL-TIMENFCTEAM OF 4

The doorbell that reaches you anywhere

A tag above the doorbell that a visitor taps with their phone. The call reaches the household wherever they are — video, audio or chat. No camera on the wall, no wiring, and nothing for the visitor to install. I lead the architecture, backend and infrastructure, and the team that builds it.

READ THE CASE STUDY
DoorLink — a visitor taps their phone against the tag above a doorbell
0
Visitor installs
6
Services in platform
2
Mobile platforms, one codebase
60+
Documented decisions
MOBILE REBUILDBLEiOS + ANDROID

Two legacy apps, rebuilt as one

A shipping BLE parking product was running on two ageing native apps — Android in Java, iOS in Swift — against third-party backends nobody controlled. I reverse-engineered the beacon protocol from the legacy source, recovered its encryption key, and rebuilt the product as one React Native codebase on an API we own.

READ THE CASE STUDY
ParkAlert — BLE parking reminder device shown on a car dashboard
2→1
Native apps unified
AES-256
BLE protocol recovered
3
Parking providers integrated
41
Automated tests, gated

Also in the archive: Blndr — real-time green screen & Kinect.

25+
YEARS IN OPERATIONS
04 · WHO YOU'RE DEALING WITH

You're not hiring an agency. You're hiring the person who builds it.

I've spent twenty-five years inside other people's operations — print floors, warehouses, hardware labs, e-commerce back offices. A hundred and thirty systems shipped to production across sixteen industries. The pattern never changes: the company isn't short on software, it's short on design.

I work alone, with your team. No account managers, no juniors learning on your budget. The person who diagnoses your operation is the person who architects the system, writes the code, and answers the phone when something breaks.

Sinisa Devcic
FOUNDER & SYSTEMS ARCHITECT, DYNCONNECT

Three ways in. One of them costs less than the problem costs you per week.

05 · ENGAGEMENTS
ENTRY · FIXED SCOPE

Systems Diagnostic

€4,500 · 2 WEEKS

Two weeks inside your operation. You get a written, quantified verdict on where the hours and errors actually go — and what to build first.

  • Process + systems inventory
  • Quantified findings report
  • Prioritized build plan
  • Yours to keep, or shop around
Book the diagnostic
CORE · PROJECT

Operational Rebuild

FROM €45,000 · 8–16 WEEKS

The full method: diagnose, architect, build. A production system shipped in slices, documented, and handed over to your team.

  • Architecture + decision record
  • Production system, shipped live
  • Team handover + documentation
  • 30-day post-launch cover
Discuss a rebuild
ONGOING · RETAINER

Run & Evolve

FROM €3,000 / MONTH

Your systems, monitored and evolved. Telemetry reviewed monthly, improvements shipped quarterly, one phone number when it matters.

  • Monitoring + incident response
  • Quarterly systems review
  • Continuous small improvements
  • Priority access for new builds
Talk retainers

Systems Journal

06 · FIELD NOTES
ALL FIELD NOTES
07 · START

No discovery calls. No proposals. A diagnostic, with a verdict.

Tell me about your operation. If it's a fit, we book the two-week diagnostic. If it isn't, I'll tell you that in the first email — and usually point you somewhere better.

STEP 01

You write

Three sentences about your operation and what's breaking. No forms longer than that deserve to exist.

STEP 02

I answer — with a verdict

Within two working days: fit or no fit, and why. No "let's hop on a call to explore synergies."

STEP 03

We diagnose

Two weeks, fixed price, written findings. Everything after that is your decision, made with real information.