Besimple AI · 1 month ago
Founding Engineer (Full-Stack)
Redwood City, CA
Full-time
Onsite
Senior Level
$100K/yr - $150K/yrBesimple AI is a YC-backed startup focused on providing training and evaluation data to AI labs. As a Founding Engineer, you will own significant parts of the product, collaborate closely with founders, and help shape the engineering culture while delivering end-to-end solutions.
Artificial Intelligence (AI)Data ManagementSoftware
Responsibilities
Own large pieces of the product and stack end-to-end
Help choose our architecture, tools, and engineering practices
Ship quickly with real users, then iterate based on feedback
Shape the culture of the engineering org we’ll build around you
Design, build, and ship features across the stack — from data models and APIs to polished UI
Work directly with founders and customers to understand problems and turn fuzzy requirements into simple, shipped solutions
Set up the foundations of our infrastructure: CI/CD, observability, testing, security, and performance baselines
Make key technical decisions (languages, frameworks, architecture) and document the reasoning so others can build on it
Establish engineering best practices: code review norms, testing standards, release processes
Help interview, hire, and onboard future engineers and contractors
Roll up your sleeves on whatever is needed — product, support, docs, or debugging gnarly production issues
Building data pipelines, evaluation toolings and improving our annotation platform
Qualification
Required
You've shipped real products end-to-end at a startup or small, fast-moving team
You're comfortable working across the stack, including mobile development
You like owning problems, not just tasks: you care about the user outcome, not just the code
You're happy working with ambiguous specs and iterating directly with founders and users
You value clean, pragmatic engineering: tests, good abstractions, and simple designs over cleverness
You communicate clearly, give and receive feedback well, and enjoy collaborating closely with non-engineers
Preferred
Experience at an early-stage startup (seed/Series A or earlier)
Exposure to AI / data / infra / devtools / audio (depending on your domain)
Comfort with our current stack: [e.g. React, TypeScript, Node, Firebase/Firestore, GCP]
Experience setting up analytics, experimentation, or data pipelines
Prior work on developer tools, internal tools, or workflows where reliability really matters
Benefits
Health, dental, vision, 401k, etc.
Company
Besimple AI
besimple AI is a software company that provides AI-based data annotation infrastructure designed for model training.
Founded in 2025
2-10 employees
Funding
Current Stage
Early StageTotal Funding
$3.5MKey Investors
Y Combinator
2025-11-26Seed· $3M
2025-06-11Pre Seed· $0.5M
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