Ankit Bagchi
ya1sec
Backend Engineer, Weave Bio
agents, design, miscellanea

I build backend systems for AI in bio. Before that, founding engineer building embedded lending infrastructure. Before that, experimental film. Ya1sec is the personal practice running underneath it all: images, archives, weird web tools, man-machine poetry, and agents built out of saved attention.

Projects 5
01 Ambien 2025– [Active]

Ambien is a daydreaming agent. It is a bet that a reading history, sufficiently organized, can do what a system prompt is asked to do. It treats bookmarks, favorites, and annotations as a world a model can move through. It is a corpus, a search system, a writing loop, and a small public blog where the loop leaves evidence in the form of essays.

ambien.ai
02 Moonjump 2023– [Active]

A one-click portal for curated chance. It uses search-shaped machinery in places, but it is just a jump button that drops you into something hand-saved, obscure, useful, or odd. It is closer to stumbleupon for are.na / marginalia / hn culture. Press jump, land somewhere someone cared enough to save.

moonjump.app
03 Korpis 2020 [Experimental]

Before LLMs made text generation ambient, Korpis was asking the more interesting question: can machine text be collaborative, inspectable, and weirdly usable? This remains one of my favorite projects. A collaborative man-machine writing system for cut-up poetry using markov models.

github.com/ya1sec/korpis
04 Impression of an Hour 2019 [Completed]

Poem that I wrote with Korpis.

ya1sec.github.io/ioah
05 Archives 2016– [Ongoing]

The corpus everything else grew out of. Thousands of links saved on are.na over the past decade, organized into channels that each do different work. Ambien reads this. So does Moonjump. Every agent or harness I use has skills to navigate and extract information from my are.na channels. It's where taste accumulates into a material you can query.

are.na/ya-1sec
Photography 17
Film 7
Experience & Skills
WeaveCurrent
2025–
Backend Engineer
Regulatory compliance platform. HAQ system for LLM-powered question extraction from regulatory PDFs, semantic search RAG, document export pipeline, file upload security.
Lendica 2020–2025
Backend Engineering Lead
Founding engineer. Embedded lending platform, ideation to $10M+ monthly volume. Event-sourced architecture, monolith to domain-driven microservices, partner ecosystem 3 to 15.
Ya1sec 2012–
Consulting, Development, Design
Fiskkit2020
Frontend Developer
Bad Behavior Co.2016–17
Graphic Designer
Altaimage NYC2016–17
Retoucher
Skills
BackendDjango, DRF, Celery, FastAPI, Flask, Node, Express, PostgreSQL, MongoDB, Redis
InfraAWS, Cloudflare Workers, Durable Objects, Kubernetes, Pulumi, Terraform, Docker
AIRAG, Semantic Search, LLM Integration, Vector Databases, Agentic Workflows
FrontendJavaScript, TypeScript, React, Next.js
DataData Modeling, SQL, ETL Pipelines, Real-time Processing
ToolingGit, Neovim, Unix CLI