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About

Hi, I’m Alexey: an engineering leader and hands-on Go engineer, working on high-load distributed systems for the last 19 years.

Most of my career has been in marketing automation and messaging. In 2015 I built the Altcraft Marketing Platform from scratch and led its technology as CTO until 2025. It’s an omnichannel customer data platform that runs on-premise at large enterprises and as multi-tenant SaaS, with over 450 million customer profiles under management.

What I enjoy most is architecture and performance engineering of systems under heavy load, and building the engineering teams that run them.

This site is where I write about software and post photos from walks and trips: see the blog and the photo blog.

  Download CV (PDF)

What I do now
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Since 2025 I’ve been a fractional CTO and technical consultant for Altcraft:

  • Architecture, performance and AI-engineering advice for the platform.
  • Load testing and capacity planning for enterprise on-premise deployments.
  • Leading Altcraft Cloud SMTP, a sending service built on KumoMTA.
  • Introducing AI-assisted engineering: LLM agents connected to the issue tracker, GitLab and browser automation via MCP.

Experience
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Chief Technology Officer, Altcraft · 2017–2025

  • Owned architecture, technical strategy, roadmap and releases as the platform grew to 450M+ customer profiles.
  • Led Development, QA and Operations: up to 35 people under three department heads, and covered product management too.
  • Set up a Project/Product Management Office and handed it over to its own head.
  • Delivered on-premise installations for enterprise clients in aviation, banking, insurance, telecom, e-commerce and media.

Lead Developer & Team Lead, Altcraft · 2015–2017

  • Built the marketing-automation platform from scratch (Go backend, JavaScript frontend); co-inventor on a patent covering it.

Earlier · 2006–2015

  • Software engineer for marketing-automation and email deliverability tooling at GMBDirect (2007–2015).
  • Electronics and software prototyping for escape rooms; UI design and web development.

Skills
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BackendGo (10+ years), JavaScript / Node.js, Python, Bash; gRPC, HTTP/REST, SMTP/MTA, SMPP
Data & messagingMongoDB, ClickHouse, PostgreSQL, Redis, RabbitMQ; storage tuning and query optimisation
Performance & opsLoad testing, bottleneck analysis, capacity planning; Linux, Docker, GitLab CI, Prometheus, Grafana, Zabbix, ELK
AI engineeringAgentic workflows: prompt and context engineering, MCP tool use, RAG, evaluation and agent loops
LeadershipThree departments, up to 35 people; strategy and roadmap; product management; standards, code review, team metrics

Languages
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Russian (native) · English (professional working proficiency) · German (B1)

Contact
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