Founding Software Engineer
Location: San Francisco / Hybrid / On-site
Experience: 3–10 years
Stage: Seed → Series B
Role Type: Early hire / founding engineer
Compensation: $150k to $300k
Full time position
This role is for a client of Weekday
Why This Role Exists
You’ll design and build the systems that power the product — from APIs and data models to real-time pipelines and secure infrastructure. You’ll be a core technical owner working directly with the founders.
What You’ll Do
Architect backend services and distributed systems
Build scalable APIs and sync workflows
Ship full-stack features when needed
Own performance, reliability, and security
Work directly with founders on technical direction
Set engineering standards and tooling
Leverage AI developer tools to accelerate delivery
Requirements
What We’re Looking For
Strong Python (Django/FastAPI) or Go
Solid React experience
Proven production system design
Cloud-native on AWS
Startup mindset and comfort with ambiguity
Nice to Have
Kafka / message queues
Postgres / DynamoDB
Terraform / Kubernetes
Regulated environments (healthcare / fin tech)
LLM integrations, AI severability, or internal AI tooling
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