About this opportunity
Ersilia lists this Senior Software Engineer opportunity in san francisco, California. Review the employer’s description below for duties, qualifications and application requirements.
Job description
About Us
We have the easiest way to build a website that your fans will love! We help creators centralize their online brand presences, connect with their audiences and partners in a streamlined way, and better understand how to build and improve their businesses. We're excited to tackle the rapidly growing, $200 billion creator economy. There's a huge opportunity to help creators build the businesses of tomorrow, and we're positioned to build the defining solution.
How the Team Works
AI is a core part of how the engineering team operates: not a productivity hack, but a fundamental shift in how the team scopes, builds, and ships. The team uses AI coding assistants in production workflows, LLMs for planning and spec-writing, and agentic tools to reduce manual toil. Every engineer is expected to work this way and to raise the bar over time. If you're still getting started with AI tooling, this probably isn't the right fit yet. If you have opinions on where it breaks down and you've already changed how you work because of it, the team wants to talk.
About the Role
We're hiring a Senior Full-stack Engineer to lead and own large parts of the product from ideation to implementation. The role is balanced across frontend (React/TypeScript) and backend (Python/Flask). You will build and iterate on AI-powered creator tools, working alongside AI PMs and ML engineers, and be expected to have a point of view on what AI can and can't do in product. You will build products that get millions of page views per day and scale them toward billions, lead frontend development with delightful UI/UX, and create systems that hold up as the platform grows.
What You'll Own
Build and iterate on AI-powered creator tools alongside AI PMs and ML engineers
Build products that get millions of page views per day and scale them toward billions
Lead frontend development with delightful UI/UX
Create systems and see how all the moving pieces interact
Reach for AI tools as your default starting point: scoping, planning, spec-writing, code generation, debugging, and code review
Requirements Must-Have
5+ years of full-stack engineering experience
AI-native work style as a hard requirement. AI tools are your default starting point. You can speak concretely about how they've changed your output or pace in the last 6 months.
Real production usage of AI coding assistants (Cursor, Copilot, Claude Code, or comparable). Opinions on where they help and where they don't.
Comfort using LLMs beyond code generation: planning, spec-writing, debugging, code review
Proficient in TypeScript to power frontend React applications
Strong Python skills for backend development
Familiarity with SQL and Postgres
Customer-centric mindset with strong empathy for creators
Comfort thriving in ambiguity and scoping solutions with teammates
Based in or willing to relocate to SF or NY. Hybrid, Tuesdays to Thursdays in the office.
Nice-to-Have
Firebase experience
Flask experience
Prior experience at small, fast-paced startups
Experience with high-scale products (millions of page views per day or comparable)
Prior collaboration with AI PMs or ML engineers on AI-powered product features
Hybrid From These Work Locations
San Francisco, New York
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Worksite address
san francisco, CA, 94199, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.