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Filip Papranec

CV

Filip Papranec

AI-Native Senior Software Engineer · Founder @ Digitaliko

I solve real business problems with custom software and AI, so people can focus on what moves the business forward.

Slovakia (EU citizen) · open to contract work · remote, on-site in CEE/DACH by agreement · availability on request

Profile

I solve real business problems with custom software and AI, so people can focus on what moves the business forward. AI agents write all of my code; my job is deciding what's worth building and answering for what runs in production. I understand business and tech. 10+ years building software, nearly 4,200 merged pull requests on GitHub since 2017, 7 years inside one SaaS product team. Today I set up the rules, hooks and CI gates that let teams use AI agents without the chaos.

What I bring

AI-native delivery that holds in production
Rules, hooks and CI gates around AI agents, spec-first work, AI-assisted TDD, agent review. AI writes the code, tests and gates decide what ships.
Architecture and product judgment
Deciding what's worth building, domain modelling, one codebase for many markets or tenants, white-label and role-based access.
Reworking a live product
Rebuilt a SaaS frontend used by 60,000+ people every day without stopping the business, then brought AI features into it.
Integrations with systems that have no good API
Integrations, MCP servers and data pipelines, migrations from legacy systems with a parallel run.
Regulated and financial environments
Analytics for a regulated industry, financial statements, auth provider migrations, audit-friendly code.
Working inside other teams
Their repo, their review and release process, from week one; 7 years in one SaaS team, contracts in product teams since.

Experience

Founder & AI-Native Senior Software Engineer

Digitaliko (own company, alongside contracts)

  • Built wizrd, the company's agent operating system: CLI, Claude Code plugin with 18 skills and 5 safety hooks, and a repo validator with 22 checks that runs as a required CI gate. 38 releases, 121 merged PRs in 2026.
  • Built an autonomous AI colleague that works GitHub issues to pull requests and never merges on its own: 48 PRs opened, 28 merged after human review.
  • Built and runs client systems: a logistics SaaS for a freight forwarder where carrier search went from 30-45 min to under 10 min, an analytics portal for a regulated-industry client (6 modules, 8-role access control, 66 of 67 PRs) and financial statements for a fintech (180 merged PRs in 4 months, auth provider migration to production).
  • Own invoice automation: one invoice from 10-15 min to under 1 min, 70 % with no human, in production 2+ years.

AI-Native Software Engineer

Riwers · contract

  • Main developer of a tourism experience platform: 495 of 621 merged PRs (80 %) in 11 months. Next.js 15, Payload CMS, PostgreSQL, EN/DE/IT.
  • Designed the team's AI-native workflow: rules-driven AI development enforced by ESLint, AI-assisted TDD, a codebase AI agents can work in.
  • Built an AI auto-translate that translates rich text node by node so formatting is never regenerated (AWS Bedrock).
  • Turned eight written agent rules into ESLint rules plus a type-check pre-push gate.

Senior Software Engineer, AI Features

Kontentino · contract

  • Shipped the AI features of a social media management SaaS used by 60,000+ people every day: AI in the editor, translations, brand voice, image editing, model choice through OpenRouter.
  • Pitched and built its ChatGPT app in 2 weeks after the Apps SDK launch (MCP, 2025): manage and approve social posts in natural language inside ChatGPT.
  • Wrote 95 % of the AI service behind them (Node.js/TypeScript).

Senior Frontend Developer

Kontentino · contract

  • Led the frontend architecture: product gating by plan, automated reporting, performance analytics, social network demographics in insights.
  • Shipped the redesigned core of the product (2022).
  • Shipped the product's first generative AI feature (2023).

React Developer

Kontentino · contract

Joined a bootstrapped Slovak SaaS in its fastest-growth phase: #10 in Deloitte Technology Fast 50 Central Europe 2020, Slovakia's fastest-growing tech company two years in a row.

  • Opened the new React/TypeScript web app (2020) and built the shared UI component library (205 PRs).
  • Top contributor to the new web app three years in a row (2020, 2021, 2022), before AI-assisted coding. Listed among the 5 most active GitHub users in Slovakia (2021).
  • Over 7 years: 1,918 merged PRs across 30+ repositories, about 30 % of all merged PRs in the main web app.

React Native Developer

Usertech · Prague

  • Mobile apps in React Native for agency clients.

App/Web Developer

Abcreate · Partizánske

  • Web and mobile apps in React and React Native, app publishing on Google Play.

Tech stack

TypeScript, React, Next.js, Node.js, tRPC, PostgreSQL, Prisma, Drizzle, Payload CMS, React Native · AI agents, MCP, Claude Code, Vercel AI SDK, OpenAI, Anthropic, Gemini · Playwright · Vitest, ESLint gates, GitHub Actions, Docker, Vercel, Cloudflare, AWS

Own products and experiments

car-logos-dataset
Open source, since 2019: 387 car brand logos with JSON metadata, served 30M+ times a year through the jsDelivr CDN to sites and apps that use it, 270+ GitHub stars, 120+ forks.
Selloro / OffroadMarket
EU marketplace aggregating listings from across Europe, one codebase for 3 live verticals. AI listing categorizer from 84 % to 98 % accuracy on a labelled set. Persona QA where AI users walk the app, and a security gate (gitleaks, osv-scanner).
pocetznakov.sk
Slovak character and standard-page counter, live since 2019.
superfaktura-mcp
Open source: MCP server with 19 tools for an invoicing API.
AI Character Generator and Harborix
AI Character Generator launched within a month. Harborix: demand test for automated Vercel Postgres backups.

Talks and workshops

  • AI agents for a company's dev team: model plus harness. Planned for 90 minutes, ran to 124. (Bratislava, 2026)
  • AI-native workflow workshop for a product team: domain anchoring, shared agent rules, review and learning loop. (2026)
  • Self-hosting with Coolify, brownbag for a product team. (2026, 47 min)
  • "Prompt-to-Production" 2-day workshop and hackathon for a SaaS dev team. (2025)
  • AI in practice for business owners, regional entrepreneurs' meetups. (Bojnice, 2025)

Education and certification

  • Master's degree, Computer Systems Technology, Constantine the Philosopher University in Nitra (2017 - 2019)
  • Bachelor's degree, Applied Informatics, Constantine the Philosopher University in Nitra (2014 - 2017)
  • AI Developer certificate, robot_dreams (07/2024): neural networks, fine-tuning, RAG, agent orchestration
  • Startup course, StartupBox

Languages

Slovak (native), Czech (fluent), English (C1, daily working language in international teams)

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