Senior Safety Engineer

Mariana Minerals • Houston, TX

5d

About The Position

Mariana Minerals is seeking a Senior Safety Engineer to lead the implementation of ISO 45001 and address safety challenges in equipment and facility design. This role involves establishing safety systems at an initial site, developing company-wide policies and procedures, and supporting future operations. The engineer will collaborate with the Engineering team on risk assessments, safety requirements, calculations, and validation. The position's focus will be approximately 50% on ISO 45001 and OHS management systems, 30% on functional safety engineering, and 20% on general safety engineering support. A key aspect of the role is to engage with personnel, translate technical requirements into practical solutions, and ensure safety is integrated into all aspects of operations.

Requirements

• 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.
• Ability to 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.

Nice To Haves

• 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.

Responsibilities

• Lead the ISO 45001 gap assessment and implementation plan, defining priorities, owners, milestones, and evidence of completion.
• Develop practical OHS policies and procedures, involving workers, coaching process owners, and building consistent systems for future sites.
• Coordinate internal audits, compliance evaluations, management reviews, corrective actions, and certification readiness, while maintaining 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 requiring 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, ensuring actions are followed 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, explaining requirements clearly, proposing workable options, and following issues through to resolution.

Benefits

• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior