Security Infrastructure Engineer
About The Position
About PointOne PointOne builds infrastructure for the legal industry, powering timekeeping and billing systems used by law firms and government agencies. We build and operate systems that process the most confidential data for institutions working on the most sensitive matters. Security for us is a strategic priority. We’re hiring a senior engineer to own the security, scalability, and cost efficiency of our AWS environment. 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.
Requirements
- 5+ years operating AWS infrastructure in production
- Deep IAM expertise (roles, policies, trust relationships, STS)
- Strong AWS networking knowledge (VPC, PrivateLink, Security Groups)
- Experience designing multi-account AWS environments
- Hands-on experience responding to real security incidents
- 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
Nice To Haves
- Experience in legal, fintech, government, or other high-sensitivity environments.
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
Benefits
- comprehensive health, dental, and vision insurance
- meals in office
- regular team events
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
