Sr. Software Engineer, Security

SPAN is mission-driven to design, build, and deploy products that electrify our built environment, decarbonize our world, and slow the effects of climate change.

Decarbonization is the process to reduce or remove greenhouse gas emissions, especially carbon dioxide, from entering our atmosphere.

Electrification is the process of replacing fossil fuel appliances that run on gas or oil with all-electric upgrades for a cleaner way to power our lives.

At SPAN, we believe in:

Enabling homes and vehicles powered by clean energy

Making electrification upgrades possible

Building more resilient homes with reliable backup

Designing a flexible and distributed electrical grid

The Role

SPAN is seeking a hands-on, autonomous Sr. Software Engineer, Security. In this role, you will drive the technical execution of SPAN’s software security initiatives. You will architect, develop, and deploy the foundational security tools, frameworks, and infrastructure required to protect SPAN's platform and backend ecosystem.

Key Responsibilities:

Foundational Tooling & DevSecOps: Design and build automated security tools, paving the way for self-service security guardrails that empower developers without sacrificing velocity.

Vulnerability Remediation: Drive the triage and resolution of security vulnerabilities across our backend stack—directly writing code to patch CVEs yourself when needed, while partnering with engineering teams to architect broader, deeper structural fixes.

Cloud Security Hardening: Serve as the technical lead for hardening our AWS production environments, ensuring top-tier alignment with modern industry standards and compliance.

Threat Modeling & Risk Mitigation: Conduct deep-dive threat modeling and security architecture reviews for high-impact, complex systems and net-new platform features.