KERNEL PANIC!

Oliwer Skweres

Full-Stack Web Developer & DevOps Engineer

● Available: permanent position or contract via Kreio

Fatal exception: too many side projects.

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About

I design, build and ship web applications end to end, from requirements to production. I like working directly with business teams: understanding their processes on the ground, integrating their CRMs and tools, structuring their data. Former tech lead at Cash Flow Positif, founder of Kreio, Master's student in Big Data & AI at IPSSI. Available for a permanent position, or for contract work through Kreio.

>> My web agency
[Status]● ONLINE
[Services]Websites, business apps, CRM & integrations, SEO, GDPR
.:[ Visit kreio.fr ]:.

Experience

  • 2026 : present

    > Founder & Freelance Developer @ Kreio

    Web agency: client relationship from first meeting to delivery, hotel CRM covering thousands of hotels synced with Pipedrive and Brevo, websites and business apps (Next.js, Prisma, PostgreSQL, Docker), SEO and GDPR.

    kreio.fr

  • 2024 : 2026

    > Tech Lead, Full-Stack & DevOps @ Cash Flow Positif

    Technical strategy and PHP to Node.js migration. Tech lead of Nexelis Patrimoine, a wealth management solution (small team, client relationship, production releases), the Ubireal rental management platform (1,000+ properties) and KPI tracking (React, Fastify, Symfony, Docker).

    cashflowpositif.comubireal.fr

  • 2023 : 2024

    > Full-Stack Developer @ A Chord Group

    Migrated a SaaS from Angular to React, internal NPM packages and an Electron app for package versioning (React, NestJS, PostgreSQL).

Projects

Skills

Languages

  • TypeScript
  • JavaScript
  • Python

Web

  • React
  • Next.js
  • Tailwind CSS
  • Node.js
  • Hono
  • Fastify
  • Prisma

DevOps & Cloud

  • Docker
  • Kubernetes
  • Caddy
  • Vercel
  • Google Cloud
  • CI/CD
  • Bun
  • Git
  • GitHub
  • GitLab
  • Forgejo

AI

  • Claude API
  • Ollama
  • MCP

Databases

  • PostgreSQL
  • MySQL
  • MongoDB
  • Supabase

Spoken languagesPolish (native), French (native), English (fluent), Spanish (basic)

Contact

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