Alex Tričković

CTO @ Deadline Funnel·Belgrade, Serbia

I build software that holds up in production.

I’m Alex, a hands-on CTO. I’ve spent 14 years building SaaS products, leading engineering teams, and turning product ideas into software customers rely on. These days a lot of that is AI agents, and I build them for real products, not demos.

Get in touchGitHub
Portrait of Alex Tričković
building SaaS products
14 yrs
SaaS products shipped
4

01 Now

What I’m working on these days.

  1. Running engineering at Deadline Funnel

    I own architecture, infrastructure and product engineering across the full stack for a marketing automation SaaS.

  2. Building AI agents

    Mostly with the Vercel AI SDK: tool calling and agent workflows, in production and on side projects. I’m currently going deep on evals, observability and RAG.

  3. Engineering with AI in the loop

    I work with AI in the loop: Claude Code and Cursor, shared skills, PRD templates, and AFK + human-in-the-loop patterns.

02 How I work

Applied AI, with the responsibility left where it belongs.

Agents write code. I own it.

Claude Code and Cursor help me plan, implement and review. They make me faster, but I still read the code, question the decisions, and own the result when it ships.

Production over demos.

A demo that looks great for five minutes doesn’t interest me much. I care about systems that run in production and solve a real customer problem.

Close to the product.

I like being in the room from the first product conversation, through implementation, and into production.

Still hands-on.

I still spend my days shaping architecture, reviewing pull requests, working through product decisions, and helping a team ship.

03 Work

Four SaaS products, built and shipped.

  1. 2025 — Now

    CTO at Deadline Funnel

    Architecture, infrastructure and the bar for what ships: performance budgets, on-call, review standards.

  2. 2023 — 2024

    Full Stack Developer at Voma.ai

    Alongside Deadline Funnel. Owned the frontend architecture (Next.js, React Query, Tailwind) with Laravel, Go and Node.js services behind it.

  3. 2019 — 2025

    Lead Developer at Deadline Funnel

    Led the full-stack team at GrowthLeap, which built Deadline Funnel, Voma.ai and SurveyFunnel.io, and defined the system architecture while staying hands-on most of the time. Stayed on through Deadline Funnel’s acquisition in July 2024.

  4. 2018

    Full Stack Developer at SurveyFunnel.io

    Alongside Deadline Funnel. A survey tool for marketers and course creators that segments leads by their answers and syncs them to their CRM.

  5. 2016 — 2019

    Full Stack Developer at Deadline Funnel

    Built and maintained core SaaS features across frontend and backend.

  6. 2013 — 2016

    Full Stack Developer at AW Pro Tools

    Laravel, jQuery and Bootstrap. Where I learned to keep production systems alive.

Education University of Niš

Backend

  • Laravel
  • PHP
  • Node.js
  • Python

Frontend

  • TypeScript
  • React
  • Next.js
  • Tailwind

AI

  • Vercel AI SDK
  • Claude Code
  • Cursor
  • Evals & observability

Data

  • PostgreSQL
  • MySQL
  • Redis
  • DynamoDB

AWS

  • Lambda
  • ECS
  • Fargate
  • EC2

04 Portfolio

The products, up close.

Built with Claude Opus 5.5

Two single-prompt builds I used to test the model on harder problems. Read how they went.

05 Writing

Recent writing.

  1. Two single-prompt builds with Claude Opus 5.5

    Opus 5.5 is faster and more capable, so I gave it harder tests. A 3D chromosome atlas and a scrollable history of humanity, each from one prompt.

  2. One-piece flow for AI coding agents

    A lean manufacturing experiment with 10 envelopes, the tracer bullets idea from The Pragmatic Programmer, and the prompt I use to apply both to coding agents.

  3. Why learn to code when AI can write it?

    Generated code becomes your code when you ship it. Why reading and judging code matters more now that coding agents write so much of it.

All posts

06 On GitHub

Small tools I build for myself and for my team.

07 Contact

Let’s build something that actually works.

I’m always up for a conversation about applied AI, SaaS engineering, or running a team that ships with agents in the loop. LinkedIn is the fastest way to reach me.