21.10.2026 aktualisiert
JO
100 % verfügbar
Software developer | CRM, ERP, APIs and AI workflows
Espoo, Finnland
Weltweit
Über mich
Software developer and founder of Kolosseum in Espoo. Available full-time for remote-first engagements through Impact Node Oy. Start dates and any onsite visits are agreed per project.
Skills
RAGTailwind CSSVitestSupabaseHTMLJavaScriptAPIsKünstliche IntelligenzTest AutomationBusiness SoftwareCSSCRM-SystemeData MigrationEnterprise Resource PlanningPython
I build business software through Kolosseum / Impact Node Oy in Espoo, Finland, combining software architecture, full-stack development, integrations and operational workflows.
FRONTEND: TypeScript, JavaScript, React, Next.js, Vite, HTML/CSS, Tailwind CSS, shadcn/ui and Radix UI; responsive interfaces, dashboards, data tables, forms and business application UX.
BACKEND AND DATA: Node.js, Hono, REST APIs, OpenAPI, SQL, PostgreSQL, Supabase, Drizzle and Zod; data modelling, migrations, authentication, role-based access, record-level permissions, validation and audit trails.
INTEGRATIONS AND AUTOMATION: CRM/ERP workflows, Notion, APIs and webhooks, CSV/Excel imports and exports, data mapping, deduplication, retry/error handling, approval workflows, document and PDF generation, operational reporting and documented handover.
AI AND MODELS: LLM API integration, OpenAI and Anthropic APIs, model routing, tool-using agents, Model Context Protocol (MCP), retrieval-augmented generation (RAG), structured outputs, prompt engineering, evaluation and human review. Python data preparation and open-model training/evaluation workflows are part of my own ongoing development work.
CLOUD AND DELIVERY: Cloudflare Workers, Wrangler, AWS CLI, Docker-based local environments, Git, build/release workflows and CI checks. Deployment scope and operational responsibilities are agreed for each project.
QUALITY: Playwright, Vitest, unit/integration and browser testing, permission checks, regression investigation, input validation, idempotency, performance troubleshooting and maintainable documentation.
NATIVE APPLICATIONS: Swift and SwiftUI for macOS/iOS, shared application models and typed API clients.
PRODUCTION REFERENCES:
- Internal Notion CRM: over 21,000 prospect records with segmentation, qualification, source verification and contact history.
- Kolosseum Atrium: clients, contacts, assigned tasks, access policies and auditable workflow history across web and native application development.
- Joen Tikkituote Oy ERP: customers, sales follow-up, versioned offers, approvals and order workflows, with ongoing development.
I can demonstrate relevant systems with synthetic data and explain my architecture and implementation work. I also bring operations, project coordination, colleague training and business-process analysis experience. Finnish native; professional English. Scope, allocation, start date and commercial terms are agreed individually.
https://kolosseum.cc
Erfahrung
Berufserfahrung0 - 5 Jahre
Freelancer seit2026
Sprachen
FinnishMutterspracheEnglishverhandlungssicher