Convexia logo
Convexia Verified
IT Services, Software Development, Digital Transformation

Founding Engineer

San Francisco, California, United StatesRemoteFull Time$90,000–$200,000 /yrPosted 2 months agoHidden Gem · YC Startup

Is this role right for you?

Upload your resume and get a skill-by-skill breakdown — see exactly where you match, where you're close, and what to highlight. Not a mystery percentage.

Get a tailored resume highlighting what this role needs.

Role summary

Convexia is seeking a Founding Engineer to build core agentic frameworks and evaluation systems for their Source → Diligence → Decide product. This role involves developing robust agent orchestration, designing evaluation and backtesting harnesses, and owning end-to-end product delivery. The ideal candidate has experience building and shipping complex backend or ML systems in production, with a strong focus on reliability, evaluation, and observability. You will tackle challenges with real-world data and partner with founders on strategy and technical direction in a fast-paced, low-process environment.

As a Founding Engineer at Convexia, you will build the core agentic frameworks and evaluation systems that power our Source → Diligence → Decide product. 

### Your Role

* **Build and iterate on agentic orchestration frameworks**: Develop robust systems for tool calling, routing, memory management, guardrails, provenance tracking, and failure recovery to ensure seamless agent performance.
* **Design evaluation and backtesting harnesses**: Create comprehensive tools for our agents and PoS model, including offline replay, regression testing, and confidence calibration to validate and refine system accuracy.
* **Own end-to-end product delivery**: Manage the full lifecycle from data ingestion and processing to user experience and system reliability, incorporating tight feedback loops from customers to drive rapid improvements.
* **Enhance system performance and correctness**: Tackle challenges with messy, real-world inputs like PDFs, tables, slides, non-English sources, and conflicting evidence to deliver reliable results.
* **Partner with founders on strategy**: Collaborate on the product roadmap, customer integrations, and technical direction as we transition from a platform to owning and advancing key assets.

### We’re hiring for people that are high-agency and a bit delusional. Specifically, you:

* You've built and shipped complex backend or ML systems in production, with a bias toward reliability
* You obsess over evaluation, observability, and failure modes
* You thrive in ambiguity and move fast without waiting for permission
* You communicate clearly and take ownership in low-process environments

### Other things we like:

* You've been underestimated before
* You've been told you're "too intense"
* You get bored in the absence hard problems 
* Hacker house vibes appeal to you
Ready to apply?
You'll be redirected to Convexia's application page.

Similar roles