The Lead Independent Safety Assessment (ISA) Assessor has the overall authority and responsibility to ensure that all Safety assessment activities under a project are correctly prepared, executed and reported.
The role provides impartial technical judgement on whether safety requirements have been adequately defined, implemented, verified, and justified. Assessing whether risks have been demonstrated to have been reduced to an acceptable level.
Lead independent safety assessments for railway systems, including signaling, control command, rolling stock, infrastructure, and system integration projects.
Review and assess safety documentation, including Safety Cases, Hazard Logs, risk assessments, system safety plans, verification and validation evidence, test reports, and assurance arguments.
Assess compliance with applicable railway safety standards and regulations, including EN 50126, EN 50128 (EN50716), EN 50129 and other project-specific requirements.
Provide independent technical opinions on the adequacy of safety requirements, risk controls, safety evidence, and residual risk acceptance.
Plan, manage, and coordinate ISA activities across the project lifecycle, including assessment planning, document review, audits, inspections, test witnessing, findings management, and final reporting.
Act as the primary technical interface with clients, project teams, design authorities, validators, certification bodies, and regulatory stakeholders.
Lead multidisciplinary assessment teams, allocate tasks, review outputs, and ensure consistency, quality, and independence of assessment conclusions.
Identify safety-related issues, observations, and non-compliances, and provide clear recommendations to support timely resolution.
Prepare high-quality ISA plans, interim assessment reports, findings logs, technical notes, and final ISA reports.
Maintain impartiality and independence from design, delivery, and implementation activities in accordance with applicable accreditation and governance requirements.