Senior infrastructure & backend engineer · Norway · Available for consulting
Senior infrastructure and backend engineer based in Norway, working through Lytvynov Oleksandr Consulting. Background in Linux server operations and PHP/Laravel hosting platforms, now building Python/FastAPI systems with LLM and retrieval pipelines: an AI course generator, a scraping platform, a Telegram community manager, a self-hosted CRM and this site with its AI twin. I favour systems that stay quiet in production: clear ownership, observability from day one, honest scope.
Modernized a legacy infrastructure with poorly structured systems. Built scalable IaC with Ansible and Terraform, simplified system architecture through microservices, and established best practices for operational reliability and scalability.
Built a reliable platform offering competitive web and VPS hosting solutions. Developed scalable infrastructure with CDN, geo-DNS, automated setups, proactive monitoring and dynamic backup systems.
Strengthened Techno-Web's reputation by improving customer service and developing a systematic approach to content management and security control.
Offered website design and development for corporate clients in a rapidly growing online services market. Built long-term relationships and a subscription-based support model, resulting in a loyal customer base.
Designed and implemented computerized solutions to improve efficiency and security in power and cooling systems for data center operations. Led technical design from planning to installation.
Temporal-orchestrated course generation with Gemini, 16 orchestrator agents, multi-tenant PostgreSQL with row-level security, Entra ID SSO, QR-verified certificates; CI-driven deploys. 2026, private.
Celery stage queues, sitemap/robots discovery, httpx with proxy pools and Playwright, Gemini structured analysis, LLM cost logging, JSON/CSV/Markdown/PDF exports. 2026, private.
Webhook bot with Telethon sync, anti-spam strategy registry, embeddings in pgvector, RSS relevance scoring with Gemini, React admin. 2026, private.
Single Next.js 15 application with Prisma, headless Rocket.Chat, MediaCMS and MinIO, appointments and video calls, soft delete with optimistic locking, embeddings worker, GitHub Actions deploy. 2026, private.
This site: FastAPI + Astro, Gemini-only twin with scope gate and injection defence, GitHub repositories ingested into pgvector with secret scanning, GDPR retention, CI-only deploys. 2026.
Facilitating backup solutions for power and alternative water supply, supporting local communities and ensuring access to necessary resources.
Legacy PHP moved to a PSR-4 MVC layer, daily Gemini content pipeline with JSON schema and search grounding, Cloudflare purge and IndexNow, Turnstile. 2025, private.
Bash toolkit that turns a fresh Ubuntu 22.04 server into a tuned LEMP host: RAM-derived PHP-FPM and MySQL settings, vhost + Let's Encrypt in one command, Laravel bootstrap. 2025, public.
Voluntary assistance for safe evacuation from war zones, with a focus on inclusive logistics that accommodates different needs.
Dependency-free web calculator for Norwegian ENK taxes (2025 rates) with reverse calculation and four interface languages. 2025, public.
Production and distribution of protective equipment, promoting safety and care for people in demanding situations.
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