Senior Safety Engineer

Marianaminerals
Houston, TX
On-siteCareer-pivot friendly

Who this role is best for

A natural match if you have experience implementing ISO 45001 in industrial settings and a background in functional safety engineering.

Best fit for

  • Candidates with experience leading ISO 45001 implementation and functional safety engineering in industrial environments
    — “Typically 7+ years of relevant safety engineering, industrial engineering, or OHS experience, including substantial responsibility for ISO 45001 implementation in an industrial setting.”
  • Individuals who can translate technical safety requirements into practical, user-friendly solutions
    — “turn technical requirements into solutions they can use.”
  • Professionals with a track record of developing and maintaining safety policies across multiple locations
    — “build company policies and procedures that other locations can use.”

Things to consider

  • The role requires direct collaboration with site teams and design specialists during commissioning and operations
    — “spend time with the people doing the work and turn technical requirements into solutions they can use.”
  • Candidates must be prepared to support new locations through various stages of development
    — “Support new locations through design, construction, commissioning, and operations.”

How to stand out

  • Highlight your experience with ISO 45001 implementation and functional safety standards like ISO 13849 or IEC 62061
    — “Experience applying machinery risk assessment and functional safety methods, including ISO 12100 and ISO 13849 or IEC 62061 as appropriate.”
  • Demonstrate your ability to coach teams and build consistent safety systems across sites
    — “involve workers, coach process owners, and build consistent systems that future sites can adopt.”
  • Showcase your technical writing and documentation maintenance skills for compliance and audit readiness
    — “Maintain usable documents, records, and performance measures.”
Pace · SteadyCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Achieve ISO 45001 compliance
  • Maintain safety standards
  • Support new location development
Typical background
Safety engineeringIndustrial engineeringOHS experience

Skills & requirements

Required

ISO 45001 ImplementationFunctional Safety EngineeringRisk AssessmentsSafety RequirementsCalculation And ValidationOHS Management SystemsEquipment Risk Assessments

Preferred

Fire And Life SafetyFacility Design

About the role

Original posting from Marianaminerals via Ashby

ABOUT MARIANA MINERALS

Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.

THE ROLE

We are hiring a Senior Safety Engineer to lead ISO 45001 implementation and help our teams solve safety challenges in equipment and facility design. You will establish the system at an initial site, build company policies and procedures that other locations can use, and support integration as Mariana develops new operations.

You will also work closely with Engineering on risk assessments, safety requirements, calculations, and validation. The expected focus is approximately 50% ISO 45001 and OHS management systems, 30% functional safety engineering, and 20% general safety engineering support. You will spend time with the people doing the work and turn technical requirements into solutions they can use.

WHAT YOU'LL DO

  • Lead the ISO 45001 gap assessment and implementation plan, with clear priorities, owners, milestones, and evidence of completion.
  • Develop practical OHS policies and procedures; involve workers, coach process owners, and build consistent systems that future sites can adopt.
  • Coordinate internal audits, compliance evaluations, management reviews, corrective actions, and certification readiness. Maintain usable documents, records, and performance measures.
  • Support new locations through design, construction, commissioning, and operations, adapting the company framework to local hazards and requirements.
  • Lead or support equipment risk assessments and design reviews for fixed/mobile equipment and other systems, including safeguarding, interlocks, emergency stops, and operating modes.
  • Define safety functions and requirements; perform and review assigned performance level or safety integrity level calculations and document their assumptions.
  • Develop and execute verification and validation activities, maintain traceability, and assess changes that require revalidation. Arrange specialist analysis and independent review where needed.
  • Provide engineering input on facility and fire or life safety questions with qualified design specialists, and support commissioning, hazardous energy isolation, and startup reviews.
  • Support incident investigations, field risk assessments, training, and other H&S improvements with site teams and the PSM Engineer. Follow actions through to verified closure.

Provide general safety engineering support

  • Contribute to design and commissioning reviews, hazardous energy isolation, incident investigations, and practical improvements with site H&S and the PSM Engineer.
  • Support facility and fire and life safety questions with project teams and qualified design specialists. Explain requirements clearly, propose workable options, and follow issues through to resolution.

QUALIFICATIONS

  • Typically 7+ years of relevant safety engineering, industrial engineering, or OHS experience, including substantial responsibility for ISO 45001 implementation in an industrial setting.
  • Approximately 3–5 years of hands-on functional safety or safety-related control-system experience within your broader career, including risk assessments, safety requirements, calculations, and testing.
  • Applied knowledge of ISO 45001 and familiarity with other OHS management systems, such as ANSI/ASSP Z10 or ILO-OSH 2001, plus relevant audit and implementation guidance.
  • Experience applying machinery risk assessment and functional safety methods, including ISO 12100 and ISO 13849 or IEC 62061 as appropriate. Ability to read engineering drawings and control narratives and explain the basis for a safety calculation.
  • Strong technical writing, facilitation, and project delivery skills. You can work through design disagreements, coach teams, and take ownership of closing gaps.
  • Sound judgment about applicable safety requirements and the limits of your expertise, with the ability to bring in the right specialist and keep work moving.

Preferred qualifications

  • A bachelor’s degree in mechanical, electrical, mechatronics, controls, systems, industrial, safety, or a closely related engineering discipline is strongly preferred. Equivalent demonstrated engineering experience will also be considered.
  • Experience taking a site through ISO 45001 certification, recognized lead-auditor training, or deployment of common systems across multiple locations.
  • Experience in mining, mineral processing, chemicals, manufacturing, or comparable operations; familiarity with SISTEMA, safety PLCs, or automated equipment. Relevant functional safety training or a CSP credential is valuable.

OUR CULTURE IS BUILT ON FOUR PRINCIPLES:

Everyone Gets Home Safe. We never put speed or cost ahead of people.

Extreme Ownership. We take full responsibility for outcomes, relentlessly driving toward solutions.

Engineer Out Requirements, then Automate. We simplify, optimize, and then automate for scale.

Share Your Legos. We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.

Join us as we build the future of responsible mineral sourcing and supply!

Source: Marianaminerals careers (Ashby)

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