Senior Software Engineer
Senior Software Engineer at JustAI — San Francisco, CA, US
- Company: JustAI
- Location: San Francisco, CA, US
- Employment type: FULL_TIME
- Salary: USD 120000–200000 / year
- Posted: 2026-07-17
About this role
Role Overview
As a Senior Software Engineer, you’ll help us architect and scale our platform from the ground up. In this role, you’ll play a pivotal role in designing and integrating ETLs, and driving effective monitoring and observability as you architect and operate core infrastructure and data systems at scale.
What You’ll Do
Design the system architecture for an AI-first marketing platform
Drive new ETL pipelines to handle customer event data at scale
Define industry standards for leveraging agentic AI to personalize marketing
Power the marketing decisions for large companies, processing billions of data points every day
Qualifications
3+ years of industry experience in backend/infra engineering
You have experience designing data pipelines and processing event streams at scale
Proficiency in SQL and understanding of database design
Experience in building platforms and 0-1 systems
You are a quick learner, and you thrive in a fast-paced, constantly evolving environment
Why Join JustAI
High ownership, high impact - your work defines how AI meets real customer workflows
Founding-stage startup backed by YC & Peak XV (Sequoia), and growing fast
Work with leadership from Twitter, Pinterest, and Goldman Sachs
Competitive salary and meaningful equity