Artem Gnuskov

At Bitlica Inc., I took an in-house billing and payments platform from its first weeks to production in five weeks, working as lead engineer with about nine contributors. Its Stripe-compatible API let backend integrations switch over by changing only the base URL and API key.

I made the codebase agent-ready with Claude Code, including project rules distilled from incidents, audit subagents, and merge-request reviews in GitLab CI. I also built a daily LLM digest of production signals that the whole company adopted.

For the payments platform, I designed four Go services on PostgreSQL and built safeguards including signed webhook delivery, money-safety invariants tested against real PostgreSQL, and around 4,400 Go tests. I treat safety as structure: the dangerous path should not exist in code, not merely be forbidden in a prompt.

As a freelancer, I was the sole developer of Fina AI, an in-product AI assistant for invoicing and accounting in TypeScript (Node, Hono, PostgreSQL): a chat agent with 17 tools for VAT-correct invoices in web and Slack, a server-side state machine with tool masking and human confirmation steps, and an hourly LLM-as-judge evaluation of real conversations that I used to compare about ten agent designs and choose models.

Earlier, at Paradox LLC (Easydocs), a B2B HR document SaaS, I grew from developer to CTO and led a cross-functional team of eight. I introduced AI tools into development, saving each developer three to four hours a week. I'm available from mid-November 2026 for full-time roles or part-time contracts, remote or with relocation.