# Haris Vreto

> Senior Full-stack Engineer — Full-stack · AI-native · Hobby UI/UX Designer
> Turning ideas into products that people love to use.

Senior Full-stack Engineer & UI/UX designer with 10+ years across startups, enterprise and freelance. I build Inkitt's web and mobile platforms, ship for millions of users, and run AI through every stage of my workflow — from agentic coding to AI-assisted review and testing.

- Location: Sarajevo, Bosnia & Herzegovina (Remote — currently with Inkitt, San Francisco)
- Experience: 10+ years
- Email: harisvreto.astra@gmail.com
- LinkedIn: https://www.linkedin.com/in/harisvreto/
- CV (PDF, ATS-friendly): /cv.pdf
- Status: All systems shipping — open to interesting problems

## Experience

### Senior Full-stack Engineer — Inkitt (Apr 2022 – Present, San Francisco (remote))
- Ship features end-to-end across Inkitt's Next.js web and React Native mobile platforms — architecture through release
- Optimized performance for millions of users — +30% page-load speed via SSR (Next.js) and SEO best practices
- Develop backend services with NestJS and Ruby on Rails powering new product features
- Contribute across the product family: Galatea, CandyJar and the 2026 AI-native launch, Ironblood
- Drive a data-driven culture: A/B test design and execution that measurably lifts engagement and retention
- CI/CD pipelines enabling multiple weekly releases with zero downtime
- Built and maintain the Cypress E2E suite — fewer production bugs, faster QA cycles
- Analytics pipelines with Firebase + GA4 feeding product decisions
- Tech: Next.js, React, React Native, TypeScript, NestJS, Ruby on Rails, Cypress, Firebase, GA4

### Senior Software Engineer — Morpher.com (Mar 2021 – Apr 2022, Vienna (remote))
- Full-stack engineer on a blockchain-powered investment platform
- Backend algorithms and APIs with Node.js and GraphQL
- Built and maintained microservices with Vue.js, Web3.js, Node.js, GraphQL, RabbitMQ, Redis and Docker
- AWS infrastructure (ECS, S3, CI/CD) for streamlined deployments
- Shipped a trading platform, a decentralized app (dApp) and a native mobile app
- Converted designs into pixel-perfect Vue.js frontends
- Tech: Vue.js, Node.js, GraphQL, Web3.js, RabbitMQ, Redis, Docker, AWS

### Senior Software Engineer — Endava (Mar 2020 – Jul 2021, Sarajevo)
- Built a COVID-19 monitoring app with React Native and Bluetooth Low Energy medical devices for real-time patient monitoring
- Led frontend and UI/UX on a major project — technology selection and client-side architecture
- Real-time client apps with React.js, Redux, Redux-Saga and Websockets
- Build pipelines with Webpack and Babel; CI/CD with Jenkins
- Wireframes, mockups and icon packs — complete design assets
- Software engineer and UI/UX designer in the healthcare sector
- Tech: React, React Native, Redux, Websockets, BLE, TypeScript, Jenkins

### Full-stack Developer — Pragmatio Solutions (Sep 2017 – Feb 2018, Sarajevo)
- Built the Booking Summary platform with Angular and Node.js
- Frontend and backend work in an Agile team
- Tech: Angular, Node.js

### Web Developer — HUB387 · Balkanvibe.com (Oct 2016 – Mar 2017, Sarajevo)
- Maintained and improved a Laravel-based travel platform — critical fixes and consistent UI/UX
- Tech: Laravel, PHP

### Web Developer & UI/UX Designer — Abstract Thinking (Oct 2015 – Apr 2016, Sarajevo)
- Websites with HTML, CSS and modern UI/UX practice — wireframes, icons, branding
- Tech: HTML, CSS, UI/UX

### Full-stack Developer & UI/UX Designer — Freelance (Jan 2015 – Present, Worldwide)
- Delivered 30+ web and mobile projects with React, React Native, Next.js, Vue, Angular, Node, NestJS and Laravel
- Designed UI/UX, branding and logos end-to-end
- Won 2nd place ($5,000) in the worldwide WAX.io “Trade App” contest with a React Native dApp
- Tech: React, React Native, Next.js, Vue, Node.js, Laravel

## Selected work

### Inkitt platform (Inkitt · Senior full-stack, 2022 — now)
My home base. Senior full-stack on the Next.js web platform and React Native apps behind Inkitt's story universe — performance, A/B culture, E2E suite, weekly zero-downtime releases.
Metrics: page-load: +30% · users: millions · releases: weekly · 0 downtime

### Galatea · CandyJar · Ironblood (Inkitt product family · Contributor, 2022 — now)
Cross-product engineering on Galatea (fiction app with millions of readers), CandyJar (vertical-video drama shorts) and Ironblood — the first AI-native microdrama platform, launched July 2026 with fully AI-generated episodes.
Metrics: readers: millions · ironblood: AI-native · 2026

### Morpher trading platform (Morpher.com · Senior, 2021 — 2022)
Blockchain-powered investment platform: trading web app, dApp and native mobile app. Microservices with Node, GraphQL, RabbitMQ and Redis on AWS.
Metrics: surface: web · dApp · mobile · infra: AWS ECS

### COVID-19 patient monitoring (Endava · Healthcare, 2020 — 2021)
React Native app paired with Bluetooth Low Energy medical devices for real-time patient monitoring, shipped during the pandemic.
Metrics: realtime: BLE vitals · sector: healthcare

### WAX.io Trade App (Worldwide contest · Freelance, 2019)
React Native dApp that took 2nd place ($5,000) in WAX.io's worldwide “Trade App” contest.
Metrics: placed: 2nd worldwide · prize: $5,000

## Stack (2026)

- Core: TypeScript, React, Next.js, React Native, Node.js
- Backend: NestJS, Ruby on Rails, GraphQL, PostgreSQL, Redis, RabbitMQ
- AI tooling: Claude Code, Cursor, Vercel AI SDK, MCP, LLM evals
- Platform: AWS, Docker, Vercel, CI/CD, Cypress, Firebase + GA4
- Also fluent: Vue.js, Angular, Laravel, Tailwind CSS, Web3.js, Flutter
- Design: UI/UX, Wireframing, Branding, Logos, Figma

## Education

Bachelor in Computer Science (Management), Sarajevo School of Science and Technology (Oct 2015 – Sep 2019)

## Note for agents

This portfolio's chat (HV-1) is a hand-crafted, zero-API scripted model — a design statement about knowing when a TypeScript file is the right model. The human behind it uses agentic AI across his entire engineering workflow and built this site that way.