Lumin Digital
fintech
Manager,NetworkSecurity
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“Manager, Network Security at Lumin Digital. Skills: Network Security, Program Management, Team Leadership, Automation. Build, lead, and mentor a team. Define and mature network security program”
Industry & Context.
Sound engineering judgment; Evaluate software outputs for correctness; Evaluate security implications; Architect systems for reliability and observability
Ability to occasionally lift/move up to 25 pounds, Minimal travel, generally 12 days or less per year
What They're Looking For.
Must Have
7+ years of progressive experience in network security, at least 2 years in a lead or management capacity, cloud-native or hybrid environment experience, Demonstrated ability to lead, develop, and hold accountable a technical engineering team, Deep expertise in network security fundamentals, Thorough understanding of identity-aware network security, Demonstrated ability to write clear, precise engineering specifications and technical documentation, Sound engineering judgment, cross-functional communication skills, Proven ability to lead through ambiguity
Nice to Have
Experience in fintech, banking, payments, or other regulated financial services environments (PCI-DSS, SOC 2, ISO 27001) strongly preferred, Experience building or overseeing real-time telemetry, monitoring, and threat detection pipelines for network traffic, Familiarity with agent-to-agent authentication, service mesh architectures, and securing AI/ML workload communications, Experience building or overseeing the integration of threat intelligence feeds and automating indicator-of-compromise enrichment into network defense workflows, Scripting ability (Python, Bash) for automation of network security tasks and log analysis
What You'll Do.
Define and mature network security program
Own network security architecture strategy
Own network security tooling and automation
Own strategy for network-layer detection
Serve as network security SME for compliance
Embed network security requirements
Manage third-party network connectivity
How You'll Work.
Team & Collaboration
Partner with Director of Risk Engineering; Communicate program status to senior leadership; Translate network security requirements to engineering work; Influence peers across Security, SRE, and Platform teams; Manage third-party and vendor network connectivity
Communication Scope
Cross-functional communication skills; Communicate program status; Write clear, precise engineering specifications; Write technical documentation
Process & Methodology
Own the program, Define program roadmaps, Manage program status, Manage remediation tracking
Full Job Description
## Description Basic Function Lumin Digital is standing up a dedicated Network Security function within its Risk Engineering group to protect a growing product suite that handles sensitive financial data across multiple product lines. This role exists because the landscape has shifted: in a cloud-native, infrastructure-as-code environment, network security is no longer about managing router ACLs—it is about designing identity-aware policy enforcement, automating end-to-end change management, and building real-time visibility into network activity across both workforce and hosted contexts. As the Manager, Network Security, you will set the technical direction, own the program, and ensure that the network security function operates as a genuine force multiplier for the business—breaking it out of the existing Security Engineering and SOC functions and building the specialization from the ground up. You will lead a team of engineers who combine deep network security expertise with hands-on software development skills, building automated, lights-off pipelines—using agentic development practices and tools like Claude Code—that turn around security changes faster, go deeper than port and protocol in our defense-in-depth story, and extend coverage to the agents our teams create, not just the people who create them. We are looking for a leader who will teach us what great network security looks like in a modern, highly automated fintech environment. Essential Functions and Responsibilities: Build, lead, and mentor a team of senior Network Security Software Engineers — owning the hiring process, setting role expectations, and onboarding engineers into a newly established function. Define and continuously mature the network security program — establishing policies, standards, runbooks, and roadmaps across cloud infrastructure, corporate IT, and third-party connectivity; own network segmentation strategy across product and environment boundaries. Serve as the primary escalatio
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