Dennis Goldfinger
ENGINEERING / AI / SECURITY

Useful AI.Secure systems.In production.

I turn ambiguous, high-stakes problems into software, strategy, and engineering organizations that hold up under pressure.

Goldfinger d.o.o. × ReadyZagreb, Croatia --:--
01

NOW / NEXT

CURRENT OPERATING MODE

Building a sharper vehicle for the work I want to do next.

I'm helping build Goldfinger d.o.o. in Croatia as CTO: a focused company for applied AI, security, and product engineering.

Ready remains an anchor client, with my work evolving toward AI and security while staying close to the architecture, product, and leadership problems that make technology genuinely useful.

A / 01

Applied AI

Making agents and models useful inside real operating constraints, with humans, failure modes, and measurable value in the loop.

S / 02

Security as design

Treating identity, authorization, and trust boundaries as product surfaces, not a compliance layer added after the fact.

E / 03

Engineering systems

Aligning architecture, delivery, and team design so momentum survives growth, migrations, and changing product bets.

02

TRAJECTORY

SELECTED EXPERIENCE / 2016 - NOW

From shipping the system to shaping the system.

2026 →
01

Goldfinger d.o.o.

Chief Technology Officer

Helping build a Croatia-based company for focused work across applied AI, security, and product engineering.

BUILDING NOW
2023 →
02

Ready

Principal Engineer · prev. VP Engineering

Led engineering through product growth and organizational change, aligning product direction, technical strategy, and team design to strengthen ownership and reliable delivery.

SYSTEMS + TEAMS
2021 - 2023
03

Nira

Senior Full-Stack Engineer

Played an integral engineering role in Nira's path to a seven-to-eight-figure exit to Dropbox, while building authorization infrastructure and deep SaaS integrations.

EXIT → DROPBOX
2020 - 2021
04

YoComment

Founder · Senior Full-Stack Engineer

Conceived and built a consumer sharing product across validation, product design, TypeScript, GraphQL, and serverless architecture.

ZERO → ONE
2016 - 2020
05

Ticket Monster → EBG

Senior Full-Stack Engineer

Played an integral role in driving Ticket Monster to a seven-to-eight-figure acquisition by Entertainment Benefits Group, then carried product and technical knowledge through the transition.

EXIT → EBG
03

WRITING

FIELD NOTES / IN PROGRESS

Notes from inside the work.

CASE STUDYFrontier AI

Keeping pace through practice

In progress
WORKING NOTESApplied AI

AI that survives contact with production

Planned
BACKLOGEngineering

Replacing the system while everyone keeps shipping

Planned

The first case study is taking shape now. More notes on AI, security, and engineering will follow.

View writing