Functional Safety Manager, Industrial Battery Management

Responsibilities

• Single point of contact on functional safety for lead customers and their certification bodies; present and defend the safety concept, safety manual and FMEDA.
• Derive the IC-level safety requirements with customer system safety teams (safety functions, target SIL, demand mode, proof-test interval, diagnostic coverage); agree a DIA or equivalent.
• Support customer UL 1973 / UL 9540 / IEC 62619 listings where BMS safety functions are in scope; close assessor findings.
• Represent the company at standards and industry forums.
• Own the safety decisions for the product line: target SIL per safety function, safety concept, architecture trade-offs.
• Define and run the functional safety management system (IEC 61508-1 clause 6): safety plan, roles and competence, independence, tailoring, safety case per product.
• Structure the safety requirements work (derivation, allocation, traceability, verification) and drive the lifecycle from concept through IC design, silicon validation, firmware and release: hardware safety architecture, FMEDA and pin FMEA, DFA, FTA, diagnostic coverage, PFH and SFF / HFT (Route 1H / 2H), proven-in-use where applicable.
• Own the safety manual and evidence package for compliant items; keep what design and firmware build consistent with the standard and the safety concept.
• Set best practice for design and verification: safety design reviews, fault-injection and diagnostic verification, tool qualification, change and impact management for derivatives and die revisions.
• Plan and run third-party assessment and certification (TUV, exida, UL) and internal safety audits; close nonconformities.
• Cover adjacent requirements: IEC 60730-1 Annex H, IEC 63056, IEC 62619 clause 8, EU Batteries Regulation 2023/1542, JIS C 8715-2; align with product security on IEC 62443-4-1 / 4-2 so safety and security share one process.
• Build safety competence across the IC design organization; define and hire the functional safety team as the product line grows.

Working Pattern
This role supports customers and internal teams across North America and Asia. As a result, early morning or evening meetings may occasionally be required to accommodate different time zones. In return, we offer a high degree of flexibility in both working hours and location. We value outcomes over time spent and measure success based on results and impact rather than hours worked.

*The full details regarding your position scope as well as any future potential changes in work location and job scope will be provided during the interview process.

MUST

• 10+ years in electronics or semiconductor development, including 5+ years leading functional safety on products certified to IEC 61508 or ISO 26262, with demonstrated ability to work to IEC 61508 (SIL 2 or higher), the standard this role delivers against. Must have taken an IC, module or controller through third-party assessment.
• Hands-on command of IEC 61508-1, -2 and -3: hardware architectural constraints, FMEDA, diagnostic coverage, PFH / PFD, safety manuals for compliant items, software safety lifecycle.
• Working knowledge of at least one of: UL 1973, UL 9540, IEC 62619, IEC 60730-1 Annex H, IEC 62061 / ISO 13849, UL 991 / UL 1998.
• Battery system fluency: cell monitoring, balancing, contactor control, isolation, thermal management, state estimation, and the failure modes that matter (overcharge, over-discharge, over-temperature, short circuit, thermal propagation).
• Enough mixed-signal and digital IC design background to review safety architectures and diagnostics with designers as a peer.
• Track record of making and defending safety decisions with engineering and business leadership, setting up requirements processes from scratch, and running customer engagements and assessor audits.
• Fluent written and spoken English and Japanese.
• Degree in electrical engineering or a related field.

Preferred

• TUV FS Engineer / Expert, exida CFSE / CFSP, or UL functional safety certification.
• IEC 61508 delivery in stationary storage, industrial automation or process instrumentation; ISO 26262 alongside it helps with customers taking the ASIL C route under UL 9540.
• IEC 62443-4-1 / 4-2 exposure (safety and security share one lifecycle here); ISO/SAE 21434 acceptable as an alternative.
• Familiarity with OCP ORv3 BBU specifications or data-center power architecture.

ルネサスは、「To Make Our Lives Easier（人々の暮らしをより豊かで快適にする）」というPurposeのもと、組込み半導体ソリューションを提供するグローバル企業です。世界30か国以上で活躍する21,000人を超えるエンジニアや課題解決のプロフェッショナルとともに、自動車、産業、インフラ、IoT分野における世界最先端のテクノロジー開発に携わり、より安全で、健康的で、環境にやさしく、スマートな未来の実現に貢献しています。

ルネサスでは、「TAGIE（Transparent、Agile、Global、Innovative、Entrepreneurial）」を企業文化の中核としています。TAGIEは、私たちの働き方や成長のあり方、そしてPurposeの実現に向けた取り組みを支える共通の価値観です。この協調的な精神と挑戦するマインドセットが、半導体技術を通じた産業の変革と、世界中の人々の暮らしへの貢献を可能にしています。

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私たちとともに未来を創造する挑戦に、ぜひ参加しませんか。皆さまからのご応募をお待ちしております。