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zernieon Ask HN: Who wants to be hired? (November 2026)

Location: Remote; I work US and EU hours Remote: Yes Willing to relocate: Yes, to the US Technologies: TypeScript, React, Next.js, Node.js, Ruby on Rails, PostgreSQL, Redis, GraphQL, Python; Claude Code and Codex harnesses (skills, hooks, MCP), LLM evals (Braintrust), LiteLLM Résumé/CV: https://zernie.com · https://linkedin.com/in/zernie Email: contact@zernie.com

Senior full-stack engineer, 10+ years, mostly for North American startups. Looking for part-time or contract work, up to 3 days a week. Plain full-stack (Rails, React/Next.js, Node) is as welcome as AI work.

- Founded Archive's Claude Code and Codex harness (sole author for its first six months, #1 contributor since); #1 contributor to its ~252,000-line TypeScript/React frontend. - Creator of vigiles (https://github.com/zernie/vigiles), an open-source verifier for coding-agent harnesses: CLAUDE.md/AGENTS.md rules, skills, hooks. - Sole author, AgenticDev '26 (ACM): across 140 runs, neither of the two most-starred token-saving tools for coding agents lowered the actual bill.

If your team's coding-agent bill keeps growing, I also audit it: you get the monthly number and what to cut. https://zernie.com/audit

zernieon Issue: Claude Code is unusable for complex engineering tasks with Feb updates

This is why you should never ever trust an AI coding agent to produce good code.

Use it to set up the strictest possible custom linting rules.

zernieon An Introduction to Solid Queue for Ruby on Rails

PostgreSQL is quite terrible at OLAP, though. We got a few orders of magnitude performance improvement in some aggregation queries by rewriting them with ClickHouse. It's incredible at it.

My rule of thumb is: PG for transactional data consistency, Clickhouse for OLAP. Maybe Elasticsearch if a full-text search is really needed.

zernieon Ask HN: Freelancer? Seeking freelancer? (December 2018)

SEEKING WORK Remote: yes

Location: Eastern Europe

Skills: Ruby on Rails, React.js/Redux, Rspec, Typescript, SQL, CSS;

Email: hnewsrails@boun.cr

Github: https://github.com/zernie

Linkedin: https://www.linkedin.com/in/zernie/

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I'm currently working as a senior full-stack dev on a blockhain startup that has raised more than 3 million $ in investments. My hourly rates are reasonable and negotiable.