Comcast · 14 hours ago
Comcast Cybersecurity: Cyber Security Engineer – AI & Agentic Platforms
United States
Full-time
Remote
Mid, Senior Level
$84K/yr - $196K/yr
5+ years expComcast is a Fortune 30 global media and technology company, seeking a Cyber Security Engineer to develop and maintain their Premonition platform for managing cybersecurity operations. The role involves building scalable platforms and optimizing data layers, while collaborating with various cybersecurity teams to enhance security workflows.
Telecom & CommunicationsCloud ComputingVideoInternetTelecommunicationsTVWeb Hosting
Responsibilities
Design, build, and maintain the Premonition platform for managing, deploying, and monitoring agentic pipelines
Develop composable building blocks—agents, tools, pipelines, evaluators, and configuration—to enable rapid workflow assembly and iteration
Implement robust APIs, orchestration, and infrastructure integrations on AWS and EKS for reliable LLM and agent driven workloads
Engineer and optimize the high performance data layer, including Iceberg/Delta/Hudi, compression, indexing, latency, and largescale query performance
Work with embedded engines such as DuckDB and LanceDB to enable interactive, low latency analytics
Collaborate with cybersecurity stakeholders (SOC, IR, threat hunters, engineers) to translate workflows into secure, automated, observable pipelines
Experiment with and productionize LLM and agent patterns (RAG, tool use, multistep agentic workflows), including evaluation, safety, and guardrails
Own the full lifecycle of Premonition services: design, implementation, testing, deployment, observability, performance tuning, and continuous improvement
Contribute to and enforce standards and best practices for LLM/agent usage, data management, security, and governance
Participate in design/code reviews and foster a supportive, caring, competitive, high ownership, deeply technical culture
Qualification
Required
Strong production experience with Python
Solid SQL skills and experience working with large datasets
Experience designing, building, and operating production APIs or microservices, including testing, observability, CI/CD
Experience running workloads on AWS and Kubernetes/EKS
Experience with high performance data engineering, including: Iceberg, Delta, or Hudi; or optimizing storage, compression, latency, and analytical query performance
Ability to work in a deeply technical, high ownership environment and collaborate effectively across functions
Strong communication skills with the ability to work closely with security stakeholders and translate workflows into technical designs
Bachelor's Degree
5-7 Years of Relevant Work Experience
Preferred
Demonstrated experience building LLM based applications or agentic workflows (not just prompt tinkering)
Hands on experience with agentic workflows: agents, tools, orchestration, multistep pipelines
Experience with LLM platforms: Ollama, Amazon Bedrock, SageMaker
Familiarity with orchestration frameworks: LangChain, LlamaIndex, or equivalent internal tooling
Production experience with Iceberg, Delta Lake, or Hudi
Experience with DuckDB or LanceDB
Experience with Rust and/or JavaScript/TypeScript
Experience with workflow/orchestration tools: Airflow, Temporal, Argo
Prior exposure to cybersecurity domains (SOC, IR, threat hunting, security engineering)
Experience in largescale enterprise or telecom environments with high security/reliability/compliance requirements
Benefits
Best-in-class Benefits
Company
Comcast
Comcast is a media and technology company that provides broadband internet, mobile services, and entertainment platforms. It is a sub-organization of SkyShowtime.
10001+ employees
H1B Sponsorship
Comcast has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (705)
2024 (561)
2023 (624)
2022 (750)
2021 (588)
2020 (583)
Funding
Current Stage
Public CompanyTotal Funding
$4.92BKey Investors
California Public Utilities CommissionMassachussetts Broadband InstituteMaine Connectivity Authority
2025-11-13Grant· $3.2M
2024-07-02Grant· $2.69M
2023-04-24Grant· $0.28M
Leadership Team
Neil Smit
President and Chief Executive Officer
Candy Lawson
SVP, Chief Compliance Officer and Senior Deputy General Counsel
Recent News
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