Security Engineer (Senior/Lead) - MeshMesh

Salesforce•San Francisco, CA

About The Position

The MeshMesh Security Engineer safeguards the platform and its customers by building security into every layer of the system, from infrastructure to application code. The role owns day-to-day security engineering execution, including vulnerability remediation, security improvements, and continuous control validation. It also supports compliance and audit efforts as the platform scales. The engineer works with engineering teams to identify and remediate vulnerabilities, harden systems, and develop security tooling. The role involves securing AI-assisted development workflows, including agent loops and tool use.

Requirements

4–8 years of experience.
Experience in application or infrastructure security engineering.
Experience with public cloud services such as AWS, Google Cloud Platform, or Azure.
At least 2 years of deep understanding of object-oriented programming and experience with at least one object-oriented programming language, such as Java, Go, Python, C++, or C#.
Experience building large-scale distributed systems, especially in cloud environments.
Familiarity with common security frameworks and threat-modeling practices.
Experience with vulnerability scanning and remediation tooling.
Understanding of how to secure and review AI-assisted development workflows, including agent loops and tool use.

Nice To Haves

A relevant security certification, such as CISSP or OSCP.
Experience securing networking or IoT platforms.
Knowledge of relational databases such as MySQL or Postgres.
Familiarity with open-source technologies such as ZooKeeper and MongoDB.
Experience building services with Docker and Kubernetes.
Good knowledge of network technologies such as TCP/IP, DNS, or load balancers.
Familiarity with emerging AI security frameworks such as OWASP LLM/Agentic Top 10 and MITRE ATLAS.
Understanding of emerging security challenges and controls within AI-assisted and agentic software development lifecycles.

Responsibilities

Conduct security reviews and threat modeling for new features and systems.
Build and maintain security tooling, including vulnerability scanning and monitoring.
Partner with engineering teams to remediate vulnerabilities and harden systems.
Support compliance and audit efforts as the platform scales.
Own day-to-day security engineering execution, driving vulnerability remediation, security improvements, and continuous control validation.
Secure and review AI-assisted development workflows built with Claude and similar tools, including agent loops and tool use.