About Frank
Fractional CTO and Engineering Leader with 15+ years building and scaling distributed teams and products across early-stage startups, enterprise clients, and everything in between. I've founded or co-founded companies, led engineering from 0 to production, and delivered 37+ projects across 30+ companies on multiple continents.
My work spans full-stack development (TypeScript, React, Node.js, Python), cloud infrastructure (AWS, Azure, GCP, DigitalOcean), DevOps and CI/CD pipelines, IAM (Keycloak, Auth0), AI/LLM/RAG integration, and Web3/blockchain. I'm equally comfortable writing code and setting technical strategy.
Highlights: 7 early-stage startups (2 VC-backed) from foundation to scale | CTO at Kumo (carbon finance, $1M pre-seed) | 12+ years leading distributed remote teams | 3 accelerator programs | Technical trainer for enterprise clients including PwC.
Available for Fractional CTO, technical leadership, architecture consulting, and senior engineering roles — remote across the EU.
English
Native or bilingual
Spanish
Fluent
German
Native or bilingual
Can work on-site
Granada (up to 50km)
Experience
- Stealth StartupPlatform EngineerMarch 2026 - Today (3 months)Owns and operates production stack: Docker Swarm, Traefik v3, PostgreSQL + PostGIS + pgvector, ClickHouse, Redis — Terraform + Helm IaC, Vault-managed secret rotation across all services, zero-downtime GitHub Actions deploymentsEngineered self-hosted Keycloak OIDC/OAuth2/SAML: multi-realm federation, fine-grained RBAC, token exchange flows, and hybrid IAM lifecycle (guest → authenticated → federated) wired across Fastify API, React + Vike SSR, and React AdminShipped multi-tenant MRV platform (Fastify / TypeScript, schema-per-tenant PostgreSQL): VCS VM0042 carbon module, BullMQ ingestion workers across MODIS satellite rasters, Verra/BeZero registry webhooks, and IoT sensor streams — PostGIS geo-indexing, pgvector semantic layer, Ollama-backed LLM inference for measurement classification and anomaly detection, versioned VCU calculation engine
- Action Network WorldwidePlatform EngineerDecember 2025 - Today (6 months)Architected production infrastructure end-to-end: Terraform + Ansible IaC, Docker Swarm orchestration, Traefik v3, PostgreSQL with streaming replication + pgvector, Redis, ClickHouse — zero-downtime deployments via GitHub Actions with encrypted secret rotationEngineered Keycloak OIDC SSO layer: multi-realm federation, JWT validation, RBAC, and seamless guest-to-full account lifecycle across all platform servicesDelivered multi-tenant AI-native platform (Fastify / TypeScript / React Native / Tauri): semantic vector matching, self-learning 6-source ingestion pipeline with browser automation, multi-lane LLM proposal engine, funder intelligence briefs, and MCP server for agent-native access
- KumoChief Technology OfficerOctober 2024 - Today (1 year and 8 months)Scaled remote team from 1 to 6 developers. Built and deployed multi-tenant platform and APIs in 6 months using DigitalOcean App Platform, GCP (BigQuery, API Gateway, Cloud Run), Auth0, Airbyte, Atlas GoDelivered sustainable finance platform serving 200+ projects, capturing 500+ data points per project into data lake of 35k+ entries. Implemented AI-powered verification, analytics, and custom formula/metrics engineOwned all technical decisions: hiring, architecture, infrastructure, UX. Drove product roadmap and cross-functional strategy
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