Senior Security Engineering Manager

Brain Co.•San Francisco, CA

About The Position

Brain Co. is hiring a security engineering leader to make security engineering more effective, scalable, and repeatable as the company grows. Reporting to the Head of Security, this person will be a close partner in leading the security function and will work in a high-stakes environment involving sensitive customer data and very low tolerance for risk. This is a player-coach role combining strategic leadership, people development, operational improvement, and technical involvement. The successful candidate will build in a greenfield environment, establish high ownership, and translate security risks into clear priorities for technical and non-technical partners. The initial scope is focused and is expected to grow through results. From day one, the role is tasked with developing people, improving execution, and making disciplined choices about the most important risks and systems.

Requirements

Experience managing managers and developing leaders at multiple levels.
Hands-on security engineering leadership experience and ability to build a function in a zero-to-one environment.
Broad knowledge across multiple security domains, such as vulnerability management, incident response, security monitoring, application security, or cloud security, with deep expertise in at least one.
A player-coach track record, with the ability to guide technical design and execution while managing people, priorities, and processes.
Strong prioritization judgment when scope is broad and risk tolerance is low.
Experience improving team operations, including how work is measured, assigned, and delivered.
Experience automating a security team’s engagement model or improving its SLA and KPI practices.
Experience translating strategy into roadmaps, measurable outcomes, and cross-functional execution.
Strong communication with technical and non-technical stakeholders, including the ability to explain business risk and build alignment.
A track record of hiring, coaching, mentoring, and improving the performance of technical teams and leaders.

Nice To Haves

Experience in a SaaS or AI company with low risk thresholds.
Experience building security infrastructure, monitoring, and automation.

Responsibilities

Set and refine the security engineering roadmap in partnership with company and engineering leadership.
Automate and operationalize how security engineering engages with the rest of the company.
Strengthen SLAs, KPIs, ownership models, and operating rhythms, and use them to improve velocity and security outcomes.
Drive operational excellence across vulnerability management, application and infrastructure security, incident response, monitoring, and automation.
Develop repeatable security engineering practices that scale beyond individual heroics.
Lead, coach, and grow a high-performing team, including developing managers and technical leaders through clear expectations, feedback, and mentorship.
Translate strategy into team priorities, individual goals, and an accountable execution plan.
Stay involved in technical decisions, architecture reviews, code reviews, and implementation when needed.
Partner with engineering and product teams to embed security into the software development lifecycle and make the secure path practical.