Senior Security Engineer, Information Technology

NISA Investment Advisors, LLC (NISA) partners with world-leading organizations to design, develop, and manage highly customized, risk-controlled investment strategies across fixed income, equities, and derivatives. With $483 billion assets under management ($299 billion in physical assets and $184 billion in derivatives notional value), NISA actively manages risk for institutional investors, providing clarity to complicated challenges and stability in ever-evolving markets. At NISA, we foster a culture that supports both personal and professional growth, providing opportunities to learn from experienced professionals while contributing meaningful work from the outset.

We seek candidates who demonstrate strong quantitative and analytical skills, intellectual curiosity, and a collaborative mindset to join our growing teams.

As Senior Security Engineer on NISA's Cybersecurity team within the Technology Operations Group, you are a senior individual contributor who engineers and operates security controls across identity and access management (IAM), privileged access management (PAM), cloud, artificial intelligence (AI), security operations and vulnerability management, partnering with the Deputy CISO and IT engineering.

• Identity and access management:
  Engineer and operate identity platforms (Entra , Active Directory, SSO), enforcing phishing-resistant multifactor authentication (MFA) and conditional access; automate joiner/mover/leaver and access reviews; govern non-human identities; respond to identity-based threats
• Privileged access management:
  Administer the PAM platform (vaulting, rotation, session recording); drive least privilege and just-in-time elevation across servers, databases, network, cloud and SaaS; implement tiered administration; centralize secrets management
• Cloud security:
  Enforce AWS and Azure guardrails (landing zones, identity, segmentation, encryption and key management); operate cloud posture and workload protection tooling; embed policy-as-code in infrastructure as code (IaC) and CI/CD pipelines; secure Microsoft 365 and SaaS
• AI security and governance:
  Pilot and build guardrails for approved AI tooling and firmwide AI adoption; assess AI systems and vendors for prompt injection, data leakage and excessive agent permissions (NIST AI RMF, OWASP LLM Top 10); enforce least privilege and logging for AI agents; monitor unapproved AI use; use AI-assisted engineering with human review of production-bound output
• Security operations and incident response:
  Engineer and tune SIEM/SOAR, endpoint detection and response (EDR) and logging for detections mapped to MITRE ATT&CK; advance automation-first detection and response; lead incident response, forensics and root-cause analysis; maintain playbooks, run tabletop exercises and threat hunt
• Vulnerability management:
  Operate scanning across network, container, cloud, application and endpoint environments; prioritize remediation by exploitability and asset criticality; conduct assessments and partner on penetration testing; maintain secure configuration and patch baselines
• Security architecture and data protection:
  Apply zero trust, defense-in-depth and secure-by-design principles to new systems; engineer network and email security (segmentation, remote access, DNS filtering, DMARC); support data loss prevention, encryption and PKI; partner on secure development and threat modeling
• Governance, risk and compliance:
  Operate controls aligned with NIST CSF, SOC 2 and applicable regulations; support client and vendor due diligence; produce security metrics; maintain policies and standards
• Resilience and leadership:
  Support disaster recovery testing and security awareness; mentor junior engineers; maintain runbooks and…