Kevin Arian
Proposal · to any business still running on manual work
APIs, web apps, and AI automation — designed, built, and shipped to production by one engineer in Buenos Aires, working in English and Spanish.
Somewhere in your operation there is work a person does by hand that software should be doing: invoices typed one by one, the same data copied between spreadsheets, orders managed over chat, reports assembled every Friday. It costs hours, it produces errors, and it does not scale past the person doing it.
That work is automatable — most of it with plain, reliable software; some of it, now, with AI that actually holds up in production.
Your operation gets its own system: the API, the database, and the apps your team and clients actually use — built to run in production, not in a demo.
Node.js · TypeScript · React · PostgreSQL · AWS
Language models put to work inside your product — assistants, document processing, search — grounded in three years of evaluating these models professionally, including how they fail.
Claude · OpenAI · RAG · evaluation
The manual work between your systems — invoicing, data entry, reports, follow-ups — turned into software that does it on schedule, every time.
agents · workflows · integrations · APIs
Exhibit A
A motorsport association ran its accounting, member registration and race management on spreadsheets and manual invoices. Now one system runs it — including electronic invoicing filed automatically with ARCA, Argentina’s tax authority.
Exhibit B
A machine-learning model serving predictions across 1,000 categories, deployed as a load-tested microservice architecture on AWS.
Exhibit C
Since 2023: evaluating and stress-testing the large language models behind today’s AI products, under strict quality rubrics — the reason my AI integrations are grounded in how these models actually behave.
I build with AI assistance and state it plainly: it is how one engineer designs, builds, and ships systems at this pace — with every line reviewed and owned by me.
Remote, from Buenos Aires (GMT-3). English or Spanish. Fixed-scope projects or ongoing work. First conversation is free — bring the manual process, leave with an honest assessment of whether software solves it.
Kevin Arian
Software & AI engineer
Buenos Aires · August 2026