Top Remote Senior Level Cybersecurity Jobs in San Antonio, TX

Senior security engineer responsible for developing automation and tooling, building and deploying security solutions, conducting incident response and proactive threat hunting, supporting investigations through data analysis, and advising development teams. Must document solutions, participate in agile teams, mentor juniors, and continuously research evolving security threats.

The role involves leading security initiatives, building security tools, conducting vulnerability assessments, and collaborating with teams to enhance cloud security and risk management.

Act as the technical presales lead for AI agent and cloud identity security across North America: scope engagements, design and run POCs and architectures across AWS/Azure/GCP, secure non-human and machine identities, create repeatable technical assets, and partner with account teams to close deals.

Lead end-to-end integrated marketing programs for a cyber resilience SaaS product. Develop narratives and audience strategies, align campaigns with product and sales, create enablement materials, set KPIs, analyze performance, and advise senior leadership to drive revenue and customer engagement over an ~8-month fixed-term contract.

The Senior Security Engineer will design secure development lifecycles, integrate security tools, lead remediation of security issues, and mentor teammates, ensuring systems resilience and security across DraftKings.

Lead escalation management for critical customer issues across assigned region. Build and execute cross-functional action plans, communicate status to executives, drive resolution, perform post-mortems, and recommend product/process improvements.

Lead development of Trust & Safety systems to detect and mitigate fraud, billing anomalies, and credential abuse. Build scalable full‑stack, microservice-based tools, mentor engineers, define architecture and processes, and collaborate cross-functionally to measure and enforce safety policies across internal and external workflows.

The Staff Security Engineer will lead technical security initiatives, own architectural security decisions, mentor engineers, and align teams on security strategy while ensuring system integrity and compliance.

Design and implement multitenant workload and network isolation for bare-metal and virtualized GPU infrastructure. Harden Linux kernel and container runtimes, perform threat modeling and penetration testing, write low-level security code (C/Go/Rust), mitigate GPU and PCIe security risks, and lead incident response and forensic work for ephemeral container environments.

Lead and build the DevSecOps function: implement SOC 2 controls, automate compliance and evidence pipelines, own cloud security posture, CI/CD security gates, vulnerability management, and AI-assisted auto-remediation to embed security as code across the developer lifecycle.