Staff Software Engineer — AI‑Driven SaaS Security Lead

Obsidian; Philadelphia (Philadelphia County); On-site; USD 223,000 - 239,000; Full time

Benefits offered by this job

Health insurance

401(k) matching

Paid time off

Job summary

Obsidian Security is seeking a Staff Software Engineer to own meaningful product and platform work across the engineering stack, spanning backend services, data flows, APIs, and integrations. You will help set technical direction, drive cross-team alignment, and raise the bar on performance, reliability, and security.

You will work with product managers, security researchers, and engineers to translate customer needs into shipped software, while guiding others through architectural decisions and

Qualifications

• 8+ years of software engineering experience with growing scope and impact.
• Proficient in Python, Go, TypeScript, or SQL and building backend services at scale.
• Strong understanding of relational databases, cloud platforms (AWS/GCP), and CI/CD pipelines.

Responsibilities

• Own features and system architecture across multiple teams or the platform.
• Design and build backend services, APIs, data processing workflows, and integrations.
• Set technical direction and architectural standards for multiple teams.

Skills

Python

Go

TypeScript

SQL

Distributed systems

System design

Mentoring engineers

Observability

Security mindset

Tools

Docker

Kubernetes

GitLab CI/CD

Grafana/Prometheus

Job description

Obsidian Security is seeking a Staff Software Engineer to own meaningful product and platform work across the engineering stack, spanning backend services, data flows, APIs, and integrations. You will help set technical direction, drive cross-team alignment, and raise the bar on performance, reliability, and security.

You will work with product managers, security researchers, and engineers to translate customer needs into shipped software, while guiding others through architectural decisions and