Applied AI & Systems Engineer building production-grade systems around LLM orchestration, backend architecture, and real-world API integrations.

Based in Finland · Open to freelance, remote roles, and partnerships

I design and implement systems where language models operate reliably in production:

• LLM orchestration (Claude, Anthropic SDK, OpenAI) — multi-pass extraction, structured output enforcement, schema validation
• Hybrid systems — probabilistic LLM reasoning combined with deterministic validation layers to eliminate hallucinations and ensure production-safe outputs
• Event-driven backend architecture (BullMQ, Redis, PostgreSQL) and serverless infrastructure
• API orchestration across heterogeneous data sources (REST, GraphQL, WMTS, WFS)
• Accessibility (WCAG 2.2 AA), security hardening, and observability as engineering constraints embedded into system design

No overlays. No superficial fixes. Code-level implementation.

LLM-based system that converts unstructured Finnish real-estate documents into reliable 0–10 risk scores and automated executive summaries. Built on a 2-pass extraction architecture: the first stage gathers raw data, the second validates facts, assigns confidence scores, and enforces JSON schema compliance — eliminating hallucinations in production with zero manual oversight.

Python · Claude API · Next.js · Prisma · LLM pipelines

Production mobile app and serverless backend orchestrating seven public APIs (SYKE, Finnish Transport Infrastructure Agency, Traficom, FMI, Digitraffic AIS, EMODnet, Cloudflare) into a unified real-time situational picture for boaters. Crowdsourced hazard map with community confirmations, offline-first design (SQLite), GDPR-compliant data storage, Cloudflare Turnstile abuse protection.

React Native · Expo · TypeScript · MapLibre · Next.js 15 · Neon PostgreSQL · Vercel Edge

Backend repo: karikko-api

Production TypeScript-based WCAG 2.2 AA scanner that discovers Finnish business sites, performs accessibility audits, and enriches leads with YTJ/Kauppalehti business data. Claude-powered summaries enable personalized outreach. Hardened infrastructure following a production compromise: Redis authentication, API middleware, SSRF/DNS rebinding protection, root execution removal, Vitest test coverage, GitHub Actions CI.

Node.js · TypeScript · Playwright · axe-core · Redis · BullMQ · Claude API

Proof-of-concept for a quantum-resistant communication protocol designed for high-resilience environments such as the EU Iris² satellite constellation and LoRa-mesh networks. 50-byte command structure optimized for low-bandwidth and high-latency links. Shamir's Secret Sharing (3/5) key management and Duress Vault pattern for physical coercion protection.

Node.js · ML-KEM (FIPS 203) · ML-DSA (FIPS 204) · AES-256-GCM

Zero-dependency (0 npm packages) 3D simulation demonstrating real-time routing and collision avoidance for 150 vehicles in-browser at 60 FPS. Hamiltonian energy minimization and repulsive safety potentials. Accessibility at the core of design: prefers-reduced-motion support and semantic ARIA mapping for the 3D environment.

Vanilla JavaScript · Three.js · Hamiltonian mechanics · WCAG 2.2 AA

LLM & AI: Claude API · Anthropic SDK · OpenAI · RAG architectures · Multi-pass extraction · Deterministic validation

Languages: TypeScript · Node.js · Python · React · React Native

Backend: Next.js 15 · BullMQ · Redis · PostgreSQL · Prisma · Neon serverless

Infrastructure: Vercel Edge · Docker · Hetzner · Linux · Cloudflare · OAuth 2.0 · System hardening

Accessibility: WCAG 2.2 AA · ARIA · Semantic HTML · NVDA/VoiceOver testing · Mobile accessibility (React Native)

LLM systems fail in production when reliability, validation, and operational constraints are treated as afterthoughts.

I work at the intersection where probabilistic LLM reasoning meets deterministic backend logic — where hallucinations must be eliminated, not just monitored; where accessibility is engineered into the architecture, not audited at the end; and where systems must be both intelligent and dependable.

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