1
2Document AI · TCE · About 3 months
Document search engineers can verify
~83% less time spent searching
Client estimate from engineer interviews, not usage logs: about 60 minutes down to 10 per engineer per working day.
Work
Work
AI products and systems I ran from the first call to launch, for teams in the US, UK and EU.
12Read the case study →
CallerPhone lineRealtime modelBooking stateClinic calendar
SMS summary to a person, when needed
Voice AI · Anonymous client · Early production
A Danish voice agent on live phone lines
~500 ms latency on live calls
Early production: 975 calls and 56 bookings, roughly 6% lead to booking.
AI products · TNM Coaching · About 18 months
Coaching expertise, built into an AI coach
95% of onboarded regular users completed a session
TNM's system-wide analytics snapshot, 27 August 2026. Inactive users may be deleted under TNM's GDPR retention, so this is not lifetime reach.
AI products · GTS Innovative · About 3 months
From rough wireframes to a full marketplace
50+ screens · 15+ workflows
Delivery scope in about three months, not adoption or revenue.
Concept illustration · anonymous clientPlatforms & operations · Anonymous client · 2 years
An internal operations platform, two years on
44 internal users · 400+ connected properties
The scale the platform supports, about 220k rows a day on average, not measured time savings or revenue.
Website chatIn-app chatEmail
One workspaceAI triage · grounded answers
AnswerHand over to a personScheduled check-in
Platforms & operations · Anonymous client · About 6 months
From missed chats to a 36-second typical reply
36 s typical first response
Website chat only, over a five-month window.
Voice AI · Juggle Ease · About 2 months
A voice assistant inside a family app
5 task categories by voice · on the day promised
Delivery scope over two months, not adoption or usage. I built the voice assistant, not the app or its API.
“Something like this, but…”SELECT … WHERE tags
AI products · Spinio · About 4 months
Conversational recommendations across 20,000 items
20,000 items · 1,000 providers
The size of the catalog the text-to-SQL engine queries, not usage or active users.
Teams I've built for
Some clients ask to stay anonymous, so not every project above has a logo.
More work
Shorter builds and engagements.
Real contracts with five-star reviews, shown by job title and the client's own words. Client names stay private.
- AI copilot in an existing B2B SaaS productSep 2026Joined an established codebase and owned the copilot across architecture, permissions, AI behaviour, frontend integration, tests and release.
“He owned the copilot feature across architecture, permissions, AI behavior, frontend integration, tests, and release. The feature feels like a natural part of the product rather than an AI widget attached afterward.”
- Multi-system AI operations and CRM automationSep 2026Connected forms, email, CRM, calendar and internal records, handling duplicates, unavailable APIs, incomplete submissions, retries and human approval, so failures are visible and recoverable without a developer.
“Most automation developers can demonstrate the happy path. Luka built for everything that happens when the happy path breaks.”
- AI triage and reply assistance for a support inboxSep 2026Learned how the support team works, then built triage and reply assistance around it, with people kept in control where judgment matters.
“He spent time learning where automation would genuinely help and where human judgment needed to remain in control.”
- Discovery for an internal AI appSep 2026Led discovery and turned a broad idea into an MVP scope and implementation roadmap.
“Luka did an excellent job leading the discovery phase. He quickly understood the business problem, asked the right questions, and turned a broad idea into a clear MVP scope and practical implementation roadmap.”
- Membership CRM and regional permit API: options studyOct 2026Mapped the permit API's quirks, delivered a phased plan before any build and built an unrequested prototype.
“He mapped out the permit API's quirks clearly and gave us a phased plan we felt confident approving before any build starts. He even made a prototype even though we didn't ask for it.”
- Improvement to an existing application (senior AI full-stack role)Aug 2026Turned a loosely defined requirement into a plan and delivered it independently, with a documented handoff.
“Luka quickly got up to speed on our existing application and turned a loosely defined requirement into a clear, practical plan.”
7 more: realtime voice bug fix, high-volume AI architecture, intent-recognition voice agent, AI dashboard, CAD model comparison, document pipeline fix, recommendation chatbot
Go-to-market and operations
Systems I built for my own company.
Command Center
MCP server · 58 tools
Tools the server exposes to AI agents, not a usage count.
Delivery tracking, CRM, cold calling and SEO in one internal system, so AI agents can plan the week, update tasks and work leads alongside the team.
Inbound engine
96 articles
Long-form articles on adamantcode.com, each checked against a source ledger. A content count, not traffic.
Next.js and Payload CMS, technical SEO and AI-search visibility tracking across ChatGPT, Claude, Gemini and Perplexity.
Outbound engine
850+ company CRM
Companies sourced and qualified by research agents, plus a 700+ lead calling pipeline. Pipeline size, not deals.
AI research agents that source and qualify prospects, with call scripts for every segment.
Fit for Trail
Built for fun and learning
A hiking web app we built because we love hiking: GPX import, difficulty estimates based on the hiker's fitness, AI recommendations, route optimisation and collaborative trip planning.
Before Adamant Code
Online ordering for Dickey's Barbecue Pit
Full-stack features in TypeScript, GraphQL, React, Next.js and AWS, REST microservices on AWS Lambda, and test-driven development with Jest.
300,000+
people a month use the ordering system
A system I helped build as a Software Engineer at Kantun Devs, not Adamant Code work or something I built alone.
Work with me
Bring me the hard problem.
Based in Rijeka, Croatia, working with teams in the US, UK and EU. Email me what's stuck and I'll tell you what it would take to fix it, including when the answer isn't AI.
I'm open to forward deployed and AI solutions roles from December 2026. Read my CV ↓