Skills

What I can do, rated openly — and beside it, what shifts once AI is in the loop. From TypeScript and Nuxt through Solidity to the things no machine takes over.

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The tools named, sorted by area — one page, one look.

Languages

Swiss German (native)German (native)English (B2–C1)Spanish (spoken, B1–B2)

Programming languages

TypeScriptJavaScriptHTMLSolidityCSSSQLPythonPHPC++Rust

Frontend & UI

Vue 3NuxtTailwind CSSResponsive designNuxt UISSR, SEO & performanceDesign systems & styleguidesFigma to codeSASS / SCSSAnimation & motionViteAccessibility (WCAG)ReactNext.js

Backend, data & APIs

Node.jsREST APIs & integrationsZod & schema validationSQLite (incl. FTS5)Device integration (serial, MIDI)PlaywrightPuppeteerBunEmail: SMTP, IMAP & deliverabilityTelegram botsExpressMySQL

CMS & commerce systems

Nuxt ContentDrupalStoryblokWordPressPrestaShopShopifyDirectusStrapi

Blockchain & Web3

dApps & wallet integrationNFTsHardhatethers.jsSmart contractsEVM deploymentviemFoundryDeFi & flash loansOn-chain data analysisIPFSSmart contract securitySolana (web3.js)

AI & automation

Claude CodeOpenCodeLLM integration in productsVercel AI SDKLangChain JS/TSPrompt engineeringRAG & full-text searchAgents & workflow automationDeepSeekLocally hosted language modelsMachine learning (PyTorch)

AI models & providers

ClaudeDeepSeekChatGPT (OpenAI)Gemini (Google)Kimi (Moonshot)Grok (xAI)

Image, audio & video

Kling AIElevenLabsFluxGoogle VeoSunoMidjourney

Infrastructure & tooling

Git & GitHubESLintCLI tools & librariesCI/CD with GitHub ActionsTesting with Vitestnpm publishingCloudflare Workers & PagesLinux & shellDocker

Ways of working

Saying no to the wrong approachClient communicationScoping & estimatingTaking over existing codebasesCode reviewDocumentationScrum & agile deliveryMentoring & knowledge transfer

Two values per row. The first is what I can do unaided. The second is what comes out when I bring AI along. With AI almost everything lands above 90 — what differs is how far it had to travel. Where I am already solid the distance is short. Where I am competent rather than expert, AI lifts the most. And where there is no second value at all, it changes nothing.

CH1 · WITHOUT AI CH2 · WITH AI — the gap

Self-assessed, not certified. The evidence sits under projects and certificates.

CH1 · LANGUAGES

Languages

Swiss German (native)90

German (native)88

English (B2–C1)72

Spanish (spoken, B1–B2)55

CH2 · PROGRAMMING LANGUAGES

Programming languages

TypeScript85 → 95

JavaScript85 → 95

HTML85 → 95

Solidity80 → 98

CSS75 → 95

SQL70 → 98

Python50 → 98

PHP33 → 95

C++30 → 98

Rust10 → 90

CH1 · FRONTEND & UI

Frontend & UI

Vue 387 → 95

Nuxt87 → 95

Tailwind CSS84 → 95

Responsive design84 → 95

Nuxt UI82 → 95

SSR, SEO & performance82 → 95

Design systems & styleguides80 → 98

Figma to code77 → 98

SASS / SCSS74 → 98

Animation & motion72 → 97

Vite70 → 97

Accessibility (WCAG)64 → 97

React47 → 95

Next.js42 → 95

CH2 · BACKEND, DATA & APIS

Backend, data & APIs

Node.js80 → 95

REST APIs & integrations80 → 95

Zod & schema validation80 → 95

SQLite (incl. FTS5)77 → 95

Device integration (serial, MIDI)77 → 98

Playwright74 → 98

Puppeteer74 → 98

Bun70 → 98

Email: SMTP, IMAP & deliverability70 → 97

Telegram bots70 → 98

Express64 → 97

MySQL57 → 96

CH1 · CMS & COMMERCE SYSTEMS

CMS & commerce systems

Nuxt Content78 → 97

Drupal62 → 96

Storyblok62 → 96

WordPress55 → 95

PrestaShop52 → 94

Shopify52 → 94

Directus40 → 94

Strapi40 → 94

CH2 · BLOCKCHAIN & WEB3

Blockchain & Web3

dApps & wallet integration77 → 98

NFTs77 → 98

Hardhat76 → 96

ethers.js76 → 96

Smart contracts74 → 98

EVM deployment74 → 98

viem72 → 98

Foundry70 → 97

DeFi & flash loans70 → 97

On-chain data analysis70 → 97

IPFS67 → 96

Smart contract security62 → 96

Solana (web3.js)57 → 95

CH1 · AI & AUTOMATION

AI & automation

Claude Code84 → 95

OpenCode84 → 95

LLM integration in products80 → 95

Vercel AI SDK80 → 95

LangChain JS/TS80 → 95

Prompt engineering80 → 95

RAG & full-text search77 → 95

Agents & workflow automation77 → 95

DeepSeek74 → 98

Locally hosted language models67 → 97

Machine learning (PyTorch)47 → 95

CH2 · AI MODELS & PROVIDERS

AI models & providers

Tools rather than skills — the bar shows how much I work with each, not what I can do without them.

Claude95

DeepSeek95

ChatGPT (OpenAI)95

Gemini (Google)95

Kimi (Moonshot)95

Grok (xAI)95

CH1 · IMAGE, AUDIO & VIDEO

Image, audio & video

Tools as well. Used for image, audio and video material in my own projects.

Kling AI90

ElevenLabs60

Flux45

Google Veo42

Suno40

Midjourney30

CH2 · INFRASTRUCTURE & TOOLING

Infrastructure & tooling

Git & GitHub84 → 95

ESLint77 → 98

CLI tools & libraries77 → 98

CI/CD with GitHub Actions74 → 98

Testing with Vitest74 → 98

npm publishing74 → 98

Cloudflare Workers & Pages72 → 98

Linux & shell70 → 97

Docker57 → 96

CH1 · WAYS OF WORKING

Ways of working

Saying no to the wrong approach84

Client communication82

Scoping & estimating80 → 98

Taking over existing codebases80 → 95

Code review77 → 98

Documentation74 → 95

Scrum & agile delivery72 → 96

Mentoring & knowledge transfer70 → 96

101 skills across 11 categories

CH1 · CONTACT

Discuss a project

Tell me briefly what it is about. I will get back to you shortly for a no-obligation first call.

Email: manuel@hallerpolo.com
Location: Basel
UID: CHE-216.461.477
First call: around 30 minutes, no obligation

What happens next

01You tell me what it is about.
02A no-obligation call of around thirty minutes.
03A written assessment: scope, approach, timeline, cost.

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Skills

What I can do for you

What I do not do

Languages

Programming languages

Frontend & UI

Backend, data & APIs

CMS & commerce systems

Blockchain & Web3

AI & automation

AI models & providers

Image, audio & video

Infrastructure & tooling

Ways of working

Languages

Programming languages

Frontend & UI

Backend, data & APIs

CMS & commerce systems

Blockchain & Web3

AI & automation

AI models & providers

Image, audio & video

Infrastructure & tooling

Ways of working

Discuss a project