Founder
Nikos Theodoropoulos
AI automation engineer and IT operations lead. I build AI agents, workflow automation and the controls around them: approvals, logs and rollback. Based in Bangkok.
LinkedIn profile Work with OLL4
Experience
- 2026 to now · SpaceApp. Founder and lead engineer of SpaceApp, an open-source, self-hosted workspace where AI coding agents work in shared rooms with live terminals, a managed browser, shared memory and human approvals.
- 2024 to now · OLL4. Agent operations, n8n and API workflows (CRM, email triage, back-office) with approval gates, evidence and reversible delivery.
- 2009 to now · E-commerce platform. Founder and senior engineer: more than 40 custom PHP add-ons and integrations for suppliers, marketplaces, payments and an Oracle-based ERP, up to 150K API calls a day, a team of 15 specialists in three countries, and the Linux and Proxmox infrastructure under it.
- 2000 to 2009 · IT and ERP. ERP and IT operations consultant at DYNACOMP / SingularLogic, and IT manager roles before that.
What I work with
- AI and agents: LLMs, AI agents, MCP, Claude Code, Codex and Gemini, browser automation, human-in-the-loop controls.
- Automation and integrations: n8n, REST APIs, webhooks, queues and retries, idempotent order processing, scheduled jobs.
- Software: TypeScript, Node.js, React, PHP, CS-Cart, PostgreSQL, MySQL/MariaDB, Temporal.
- Infrastructure: Linux, Proxmox VE, Docker, ZFS, Cloudflare, Nginx and Apache, Grafana, Prometheus, Loki.
Certifications
Individual credentials issued to me as Nikolaos Theodoropoulos, not to OLL4.
- OpenAI Foundational Knowledge · OpenAI Partner Network (PartnerU), issued Oct 2026, valid to Oct 2027 · Verify
- OpenAI Technical Practitioner · OpenAI Partner Network (PartnerU), issued Oct 2026, valid to Oct 2027 · Verify
- OpenAI Consultative Solutions Practitioner · OpenAI Partner Network (PartnerU), issued Oct 2026, valid to Oct 2027 · Verify
- ChatGPT Solutions Practitioner · OpenAI Partner Network (PartnerU), issued Oct 2026, valid to Oct 2027 · Verify
- ChatGPT Deployment Practitioner · OpenAI Partner Network (PartnerU), issued Oct 2026, valid to Oct 2027 · Verify
- Codex Solutions Practitioner · OpenAI Partner Network (PartnerU), issued Oct 2026, valid to Oct 2027 · Verify
- Codex Deployment Practitioner · OpenAI Partner Network (PartnerU), issued Oct 2026, valid to Oct 2027 · Verify
- OpenAI Cyber Solutions Practitioner · OpenAI Partner Network (PartnerU), issued Oct 2026, valid to Oct 2027 · Verify
- OpenAI Cyber Deployment Practitioner · OpenAI Partner Network (PartnerU), issued Oct 2026, valid to Oct 2027 · Verify
- API Deployment Practitioner · OpenAI Partner Network (PartnerU), issued Nov 2026, valid to Nov 2027 · Verify
Education and languages
- BSc in Electrical Engineering, Technological Educational Institute of Patras, Greece. Oracle Database certification.
- Greek (native), English (C2, Cambridge Certificate of Proficiency).