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HF Sinclair

Refines petroleum; markets fuels and lubricants

Enterprise Cybersecurity Architect

Security Engineering & ArchitectureUpdated on Nov 14
Full-timeDallas, TX, USANo salary listed

About the Job

Requirements

  • A minimum of 8 years of experience in IT infrastructure, cybersecurity, cloud security, security engineering, enterprise architecture, solution architecture, OT security, or related technology domains.
  • A minimum of 4 years of experience in an architecture function, including developing standards, reference architectures, design patterns, architecture governance, or technology roadmaps.
  • Demonstrated experience translating business, risk, regulatory, and technical requirements into practical security architecture guidance.
  • Demonstrated ability to operate as a senior technical advisor across multiple teams, domains, and leadership levels.
  • Experience leading architecture reviews, producing architecture decision records, documenting design tradeoffs, and influencing risk-informed discussions across technical and business stakeholders.
  • Experience working across multiple technology domains, including some combination of identity, network, cloud, endpoint, data, application, SaaS, infrastructure, integrations, OT, or cyber-physical systems.
  • Experience supporting cyber risk reduction, control alignment, maturity improvement, or security roadmap development.
  • A bachelor's degree in Information Technology, Information Security, Cybersecurity, Computer Science, Engineering, or a related field is required; equivalent experience may be considered in lieu of a degree.
  • Enterprise security architecture and secure-by-design principles.
  • Architecture frameworks and methods such as TOGAF, SABSA, DoDAF, NIST, C2M2, SAFe for Architects, or similar approaches.
  • Architecture governance methods, including standards management, design review facilitation, architecture decision records, and architecture review forums.
  • Systems thinking and the ability to analyze complex cross-domain dependencies.
  • Cyber risk analysis, control alignment, maturity assessment, and risk-informed roadmap development.
  • Ability to translate strategy, risk, and control requirements into practical architecture standards and engineering-ready guardrails.
  • Security architecture concepts across IT, OT, cyber-physical systems, cloud, SaaS, application, API, data, identity, network, monitoring, automation, and resilience domains.
  • Strong communication, facilitation, stakeholder management, and executive-facing presentation skills.
  • Ability to establish reusable patterns, feedback loops, and measurable outcomes as part of continuous improvement.

Responsibilities

  • Define, maintain, and improve cybersecurity architecture principles, standards, guardrails, patterns, and reference architectures.
  • Establish reusable architecture patterns that enable secure-by-design delivery, reduce inconsistent solution decisions, limit architectural drift, and address avoidable control gaps.
  • Use the enterprise cybersecurity taxonomy to organize architecture decisions, standards, roadmaps, risks, controls, metrics, and capability maturity discussions.
  • Lead or facilitate security architecture reviews for major technology initiatives, cyber portfolio projects, OT modernization, cloud solutions, application modernization, identity patterns, data platforms, integrations, automation, and AI-enabled capabilities.
  • Identify architecture risks, design gaps, control weaknesses, and standards deviations; document tradeoffs, recommendations, decisions, and residual risk implications.
  • Define architecture dependencies, design constraints, runway needs, standards readiness, and risk reduction outcomes for major IT and cyber initiatives.
  • Support risk register accuracy by mapping technology and architecture risks to affected capabilities, root-cause design gaps, maturity gaps, and practical mitigation approaches.
  • Advise on architecture implications of policy exceptions, control gaps, risk acceptances, third-party dependencies, and emerging technology adoption decisions.
  • Guide security architecture for IT/OT convergence, industrial digital platforms, cyber-physical systems, network segmentation, secure remote access, monitoring, identity, data exchange, cloud, SaaS, application, API, automation, and AI-enabled solutions.
  • Evaluate emerging technologies and industry trends for applicability, risk, architecture impact, control requirements, and adoption guardrails.
  • Influence strategic initiatives by explaining architecture options, risk tradeoffs, design implications, and recommended paths forward.
  • Facilitate alignment where ownership is shared or ambiguous by clarifying architecture boundaries, decision rights, and execution expectations.
  • Support continuous improvement of architecture governance, standards adoption, exception management, security design quality, and measurable security outcomes.
  • Perform special assignments or tasks assigned by the supervisor.

Desired Qualifications

  • A master's degree in Information Technology, Cybersecurity, Information Security, Engineering, Business Administration, or a related field.
  • Experience in oil and gas, critical infrastructure, industrial cybersecurity, or OT security architecture.
  • Experience with NIST CSF, C2M2, CIS, ISO 27001, NERC CIP, TSA security directives, or other cybersecurity and regulatory frameworks.
  • Experience aligning security architecture to enterprise cyber taxonomies, capability models, maturity models, control libraries, or unified controls frameworks.
  • Experience supporting cyber portfolio planning, investment prioritization, roadmap development, OKRs, KPIs, KRIs, or value-/risk-based planning.
  • Experience with security architecture for AI, analytics, automation, machine identities, APIs, data platforms, cloud-native architectures, and SaaS ecosystems.
  • Familiarity with SSE/SASE, Zero Trust, cyber-physical systems, and digital transformation security patterns.
  • Relevant certifications such as CISSP, CCSP, SABSA, TOGAF, GIAC, ISA/IEC 62443, cloud security, or similar credentials.

About the Company

HF Sinclair

Refines petroleum; markets fuels and lubricants

HF Sinclair is an independent energy company with operations across refining, midstream, and marketing, plus involvement in renewable diesel, specialty lubricants, asphalt, and chemicals. It refines crude oil into light products such as gasoline, diesel, and jet fuel, and also produces renewable diesel and other specialty products for commercial and industrial customers. Its five-area structure covers downstream refining, midstream logistics, and marketing to a diverse customer base, with additional international activity in Canada and the Netherlands. Unlike many peers that focus on a single segment, HF Sinclair integrates multiple stages of the energy value chain—from producing and processing fuels to distributing them—while expanding into renewable and specialty product areas. The company aims to grow its footprint across the energy value chain, broaden its product slate (including renewables and chemicals), and strengthen its presence in North American and international markets.

Company size
5,001-10,000
Company stage
IPO
Headquarters
Dallas, TX
Founded
1947

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