Founding Engineer
Manicule, San Francisco, California
The role
- First: how does an LLM decide which content to retrieve, trust, cite, and use when recommending a company?
Manicule, San Francisco, California
Ideally, you write excellent TypeScript, but you also understand the fundamentals of GEO—or have spent enough time studying LLMs to form a view on how they surface sources and recommend brands. You care about writing quality and can tell the difference between a useful technical explanation and fluent filler.
This is not a role where you receive finished specs and close tickets. You’ll work directly with our customers to understand the problem, decide what to build, and own it through production.
Your first 30 days
Probably the highest thing on my list is building an extremely durable and powerful context system.
Our agents need to gather context from dozens of sources, from a company’s Slack and Linear to GitHub and its docs, and use it to produce amazing work on the first try. These sources contain huge amounts of noisy, constantly changing information. You’d build, eval, and improve this production infrastructure.
Bonus points if you’ve worked in context management before.
Why now
We’re growing very fast – went from 0 to $30K MRR in 2 months (yes, actual real revenue). You’ll be early enough to have meaningful contribution to the actual product direction and lots of autonomy.
Also, we’re 2 chill young cofounders. You’ll like working with us.
Manicule is building AgentRel: the systems that help companies become discoverable, cited, and recommended by AI agents.
For the last twenty years, companies optimized for people searching Google. The next interface is an agent answering a question, comparing products, or deciding what to recommend. We want to understand how those decisions happen and build the infrastructure companies need to influence them honestly.
That means solving two hard problems.
VerloSt. John's, NL
Pay not posted
Posted Jul 16, 2026
$250K–$300K / yr
Posted Sep 29, 2025
$84K–$100K / yr
Posted yesterday
Pay not posted
Posted 8 days ago
FieldguideSan Francisco, CA
$190K–$220K / yr
Posted Sep 16, 2026
LightfieldHQ: San Francisco
$220K–$300K / yr
Posted Sep 23, 2026
Source: the Y Combinator job board. We last checked this job 4 h ago. We first saw it 4 days ago. A job on a job board does not always mean that the team interviews people now.
This base pay is below the median for software engineering jobs in the Bay Area with no level in the job title.
We compare the middle of each posted range. This is base pay as posted. The group does not include this job.