Platform Engineer: Scalable AI Security Infrastructure

PromptArmor; San Francisco (CA); On-site; USD 150,000 - 190,000; Full time

Benefits offered by this job

Health insurance

Career growth

Professional development opportunities

Competitive salary

Job summary

PromptArmor, an AI security company in San Francisco, seeks a senior backend engineer to build and scale the foundational platform powering our security products. You will design systems that ingest, process, and serve threat intelligence across our customer base.

Own data infrastructure and core services; improve developer velocity with shared tooling; partner with product engineers to ship reliable features on a scalable foundation.

Qualifications

• Bachelor's degree in CS/Engineering or related field.
• 5+ years of experience building production backend systems.
• Strong understanding of distributed systems, databases, and API design.
• Proficiency in Python, Go, or a similar backend language, with cloud-native experience (AWS/GCP).
• A track record of scaling services from prototype to production.

Responsibilities

• Design and build internal platform services and APIs used across the engineering organization.
• Improve developer velocity through shared tooling, libraries, and abstractions.
• Own data infrastructure, queueing systems, and core services that scale with the business.
• Partner with product engineers to ship customer-facing features on a reliable foundation.

Skills

Distributed systems

API design

Back-end development

Databases

Python

Go

AWS/GCP

Education

Bachelor's degree in Computer Science, Engineering, or a related field

Job description

PromptArmor, an AI security company in San Francisco, seeks a senior backend engineer to build and scale the foundational platform powering our security products. You will design systems that ingest, process, and serve threat intelligence across our customer base.

Own data infrastructure and core services; improve developer velocity with shared tooling; partner with product engineers to ship reliable features on a scalable foundation.