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Software Developer

Hi, I'm AntonioI ship productionsoftware end-to-end.

I solo-architect, build, deploy, and operate real products — .NET, Vue/Nuxt, and PostgreSQL. Two of them are live and running today.

Work

Selected projects

01 / 02

Production

Celegreety

celegreety.com (Live site)

A two-sided video marketplace where customers order personalized videos from talent — mostly well-known athletes — and brands send booking inquiries for B2B work.

.NET 10Vue 3PostgreSQLMuxStripeFiscalizationGmail APISentryDocker

What it took

  • Stripe card authorization and manual capture
  • Mux pipeline with watermarking
  • Auth0 custom domains, flows and actions
  • Gmail API and Google Workspace aliases
  • Croatian fiscalization

02 / 02

Production

Code-Media

code-media.hr (Live site)

Marketing site for a Croatian IT-services business, built pro bono in Nuxt 4. An admin area on Neon Postgres with Better Auth lets the owner manage products and services, and incoming offer requests are stored there as well as emailed through Mailjet.

Nuxt 4Neon PostgresBetter Auth2FA/OTPMailjetDockerNginx

What it took

  • Neon managed Postgres
  • Single-admin access via Better Auth
  • Two-factor auth with OTP
  • Offer requests stored and emailed
  • Product and service management

Career

Work experience

01 / 04

Current

Full-Stack Software Engineer

Rafi j.d.o.o.

Jul 2025 — Present · 1 yr 4 mo

Sole engineer on the company's production product, celegreety.com.

ArchitectureBackendFrontendDatabaseInfrastructureIntegrations

What I owned

  • Architecture and delivery of the whole product, as its only engineer
  • Every third-party integration on it: payments, video, identity, email, fiscalization
  • The VPS and Docker deployment it runs on, provisioned and operated by me

02 / 04

Current

Full-Stack Developer & Ops

code-media.hr

Jul 2024 — Present · 2 yr 4 mo

A friend's IT-services company. I built the site and its admin area pro bono, and still run both.

FrontendBackendAdmin areaDeploymentInfrastructureMaintenance

What I owned

  • Deployed in Docker behind nginx on a VPS I own and operate
  • The admin area the owner runs the business from day to day
  • Feature work on request, on my own time, with no support contract

03 / 04

Backend Developer

Mono d.o.o.

Feb 2021 — Dec 2021 · 11 mo

Joined on a one-month student placement and was hired in its first week — full-time hours on a student contract, worked around my degree. Backend work on the company's largest project, a multi-tenant system.

BackendData accessAuthDatabaseMicroservices

What I owned

  • Shared data-access layer the rest of the student team built on
  • OIDC integration against an external identity server
  • High-volume PostgreSQL and PL/pgSQL optimization

04 / 04

2019 — 2020

Patient Transport Assistant

KBC Osijek

Moved patients across the hospital on a student contract. Twelve-hour shifts, nights included, worked around a full study load.

Study

Education & training

01 / 01

Oct 2018 — Sep 2024

BSc Mathematics & Computer Science

School of Applied Mathematics and Informatics

Josip Juraj Strossmayer University of Osijek

univ. bacc. math. et comp. Studied alongside continuous paid work, which is what paid for it and why it took longer than three years.

Final paper

The diagonal and Jordan form of a matrix

Croatian, with an English summary

Skills

My tech stack

Frontend

  • Vue 3
  • Nuxt 4
  • TypeScript
  • Tailwind CSS 4
  • daisyUI

Backend

  • C# / .NET 10
  • ASP.NET Core
  • CQRS / MediatR
  • Dapper
  • PostgreSQL
  • Liquibase
  • REST APIs

DevOps & Infrastructure

  • Docker
  • Hetzner
  • Linux
  • Nginx
  • Git
  • Claude Code
  • CI/CD

Integrations

  • Stripe
  • Mux
  • Auth0
  • Solo API
  • Redis
  • Sentry
Stripe
Mux
Auth0
Solo API
Redis
Sentry

Contact

Get in touch

Open to engineering roles and freelance work. The fastest way to reach me is email — I read everything.

Email[email protected]Send me an email

Based in Osijek, Croatia — open to remote and hybrid roles. I work in Croatian and English.