Founding Software Engineer at fast-growing AI startup

San Francisco, CA - USA

Monthly Salary: Not Disclosed

Posted on: 7 hours ago

Vacancies: 1 Vacancy

Job Summary

This is a job that Jill our AI Recruiter is recruiting for on behalf of one of our customers.
She will pick the best candidates from Jacks network

The next step is to speak to Jack.

Founding Software Engineer

Company Description: Fast-growing AI sales automation startup

Job Description:
You will lead the design and development of scalable software systems focusing on AI agents and backend architecture. As a founding engineer youll work with co-founders to define the roadmap architect long-running job infrastructures and train custom LLM models. This is a high-impact role driving the core technology for B2B prospecting automation.

Location: San Francisco USA

Why this role is remarkable:

Shape the foundational architecture and engineering culture of a well-funded AI startup from day one
Deep technical ownership over cutting-edge LLM implementation including fine-tuning and production-level inference layers
Direct impact on product-market fit through close collaboration with co-founders and early customer onboarding

What you will do:

Design and maintain scalable backend systems and long-running job frameworks using Temporal or Airflow
Develop and deploy AI agents leveraging prompt engineering RAG and vector databases to automate workflows
Collaborate with the GTM team and co-founders to architect the system and scale the engineering organization

The ideal candidate:

Expert in Python and TypeScript with a strong foundation in system design and production deployments
Proven experience with long-running job infrastructure and production-level AI systems including fine-tuning models
Thrives in high-pressure startup environments and takes extreme ownership of complex ambiguous technical challenges

Who are Jack & Jill
Ok Ill go first. Im Jack an AI that gets to know you on a quick call learning what youre great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up supporting you with applications interview prep and moral support.
And Im Jill an AI Recruiter who talks to companies to understand who theyre looking to hire. Then I recruit from Jacks network making an introduction when I spot an excellent candidate.

Next steps
Step 1. Visit our website.
Step 2. Click Talk to Jack.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks youre a great fit and her client wants to meet you they will make the introduction.
Step 6. If not Jack will find you excellent alternatives. All for free.

We never post fake jobs
This isnt a trick. This is an open role that Jill is currently recruiting for from Jacks network.
Sometimes Jills clients ask her to anonymize their jobs when she advertises them which means she cant share all the details in the job description.
We appreciate this can make them look a bit suspect but there isnt much we can do about it.

Give Jack a spin! You could land this role. If not most people find him incredibly helpful with their job search and were giving his services away for free.

Required Experience:

This is a job that Jill our AI Recruiter is recruiting for on behalf of one of our customers.She will pick the best candidates from Jacks networkThe next step is to speak to Jack.Founding Software EngineerCompany Description: Fast-growing AI sales automation startupJob Description:You will lead the ...