Security & Infrastructure Engineer

Responsibilities

• Infrastructure Security
• Design and enforce least-privilege IAM across services
• Implement permission boundaries and SCP strategy
• Reduce attack surface across networking and service exposure
• Improve secrets management and KMS key segmentation
• Lead threat modeling across core systems
• Design blast-radius containment strategies
• Detection & Response
• Strengthen logging, monitoring, and anomaly detection
• Ensure logs are immutable and auditable
• Build and test incident response playbooks
• Review new infrastructure designs for security risks
• Scale & Cost
• Optimize AWS architecture for reliability and efficiency
• Improve Lambda/SQS concurrency and scaling patterns
• Evaluate and improve RDS scaling strategy
• Drive principled tradeoffs between isolation, performance, and cost

Requirements

• Experience designing multi-account AWS environments
• Hands-on experience responding to real security incidents

The Role

• Let’s start with what this isn’t:
• Not a GRC or paperwork-heavy compliance role

Not a vulnerability-scanning-only position

• Not a “turn on GuardDuty and call it done” role
• You will be shaping critical systems and making architectural decisions that materially affect risk and resilience.
• This is a hands-on engineering role at the intersection of security, cloud architecture, and platform optimization.
• You will harden our AWS infrastructure, reduce blast radius, eliminate unnecessary exposure, and ensure our systems scale efficiently and securely.

What We're Looking For

• 5+ years operating AWS infrastructure in production
• Deep IAM expertise (roles, policies, trust relationships, STS)

Strong AWS networking knowledge (VPC, PrivateLink, Security Groups)

Strong understanding of cloud attack vectors and privilege escalation

Experience reducing cloud cost without compromising security

Comfortable working directly in CDK/Terraform and reviewing infrastructure code

Strong plus

Experience in legal, fintech, government, or other high-sensitivity environments.

Why This Role Matters

• A security breach at PointOne would have consequences extending far beyond the survival of our company. This role exists to:
• Protect sensitive institutions

Raise the engineering bar on secure system design

Build infrastructure that enterprise and government customers can trust

You will be a core architect of PointOne’s long-term security posture.

This is intense early-stage startup work. You will be expected to take ownership, bring structure to ambiguity, and build the connective tissue between our customers and our product.

The compensation for this position is determined by multiple factors, including prior experience and expertise. A competitive equity component will also be offered as part of the package. Benefits include comprehensive health, dental, and vision insurance, as well as meals in office, regular team events, and more!