Available · April 2026
20+ years building reliable, scalable backends and infrastructure for SaaS, e-commerce and B2B platforms. I work directly with CTOs and founders — no account managers in between.
Trusted by teams at
01 · About
I'm Alex. If your team needs a senior engineer who can own the system end-to-end — from data model to deploy — you're in the right place.
Since 2003 I've shipped backends, infrastructure and full products — from startups to mature platforms. Experience across e-commerce, fintech, telecom, B2B SaaS and live streaming. I work directly with CTOs, Heads of Engineering and founders.
My job is to balance speed with quality. Move too fast and you ship technical debt that costs you the next quarter. Move too slow and you lose momentum. The work is finding the line — and holding it.
02 · Services
No subcontractors. Direct contact with the person writing the code.
Backend architecture, APIs and full-stack delivery. Integrations — from payment gateways and e-commerce to GPS navigation and mapping (OSM · OSRM). Systems that hold up under growth.
Production environments that don’t page you at 3am. Cloud, Linux, containers, monitoring and observability.
Scoping, planning, execution. Senior judgment for the awkward middle stretch where projects die.
03 · With Alex vs. without
No magic. Just twenty years of avoiding the same mistakes.
04 · Selected work
A few projects where I owned the backend, infrastructure or key modules.
Vitamins and supplements e-shop. Backend ownership of catalog, checkout, fulfilment integrations.
Business phone system for modern teams. Backend, infrastructure and integrations.
ICANN-accredited registrar. Affordable domain registration, fast checkout pipeline.
Digital engineering partner. Long-running backend & infrastructure mandate.
One-click multistreaming to VK, Telegram, Twitch, YouTube and more. Backend pipeline and stream orchestration.
Wholesale wedding bands and fashion rings for North-American jewelry retailers — tungsten, ceramic, cobalt, gold. Catalog, dealer accounts and store-locator backend.
Made-to-order kitchen cabinets for the US market. Built from scratch — catalog, configurator, checkout and 3D-design flow.
Practice management SaaS for German medical clinics — patients, treatment cases, prescriptions, documents, invoicing and the full GOÄ fee catalog. Multi-tenant, EN/DE. In active development.
AI assistant for schools, colleges and universities, native inside the MAX messenger. Students, parents and teachers ask the bot about schedules, classrooms and exams — answer in seconds. Built from scratch — backend, parsing pipeline and messenger integration.
Cross-platform media server for one-machine multistreaming. Accepts RTMP from OBS, hardware encoders or mobile and pushes the same stream to YouTube, Twitch, Kick and Restream in parallel. Built from scratch — A/V engine, scheduler and desktop UI for macOS, Windows and Linux.
05 · How an engagement runs
Most projects fit a four-step shape. The unusual ones, we adapt.
Async written exchange. You describe the system, team, constraints and deadline. I respond in detail.
A short written proposal: scope, milestones, fixed price or hourly, what could go wrong.
Weekly demo. Async updates. Code in your repo. No black box.
Docs, runbooks, knowledge transfer. Optional retainer for ongoing ownership.
I work async — email, LinkedIn or Upwork/Golance message. Reply within one working day. If it’s not a fit, I’ll tell you and point you somewhere better.
Free tools I run
Your IP address and everything technical behind it — network, routing, geo. Works as a page or as an API.
Deep TLS analysis of any public server: protocols, cipher suites, certificate chain, weaknesses — and a letter grade.
Delegation, SOA consistency, records and propagation for any domain — with the DNSSEC chain verified signature by signature rather than taken from a resolver’s word.
Mail set up end to end: SPF expanded through every include and counted against the lookup limit, DKIM, DMARC, MTA-STS, DANE — and whether the servers actually answer.
Security headers, the redirect chain from all four entry points, and the content security policy taken apart directive by directive.