I'm hiring on behalf of a client in the aerospace and clean energy sector for a Senior Electrical Hardware Engineer.You'll lead the design, verification, and certification of control boards for an advanced Energy Storage System under EASA Part-21 J. Ideal candidates have strong safety-critical experience and deep knowledge of DO-254, DO-160, ARP4754 A, and ARP4761.Sr Electrical Hardware Engineer - 6 months - Valais Aerospace industryDescriptionTechnical LeadershipTake ownership of ECBA design and architecture, ensuring traceability from system functions to board-level requirementsLead the development of mixed-signal electronics: power supplies, protection circuits, sensing, and control interfacesContribute to and support PDR/CDR activities and technical design reviewsDocumentation & ComplianceDevelop and review detailed technical documentation:Design Descriptions, Interface Control Documents (ICDs), and Block DiagramsAnalyses (, Worst Case, Error Budget, Power Dissipation, Timing)DO-254-compliant V& V plans, hardware development plans, and FMEASupport certification documentation and compliance with internal and external quality standardsVerification, Test & CertificationDefine and execute test procedures (VTP, QTP, ATP)Ensure compliance with DO-160 environmental testing standards (, vibration, thermal, EMI/EMC)Support board-level integration, troubleshooting, and system testingParticipate in SOI audits and liaise with certification authorities on behalf of the hardware functionMentorship & Best PracticesProvide guidance and peer review across hardware development activitiesHelp maintain and evolve internal standards, design checklists, and engineering processesPromote best practices aligned with ARP4754 A, DO-331, and model-based engineering principlesProfileEducation & ExperienceDegree in Electrical/Electronics Engineering or related field (BSc/MSc)7-10+ years of experience in high-reliability hardware design (aerospace, automotive, medical, or industrial sectors)Hands-on experience in DO-254 development environments, preferably for certified systemsTechnical SkillsStrong background in analog/digital design: DC/DC power supplies, protections, signal conditioningProficient in simulation tools (SPICE, SIMetrix) and EMI/EMC techniquesExperienced with ECAD tools - Altium Designer preferredSolid understanding of key standards : SAE ARP4754 A, ARP4761, DO-254, DO-160, AMC 20-152, ASTM F3230Awareness of DO-178 C, DO-331 for multidisciplinary integrationConsulting MindsetAnalytical, detail-oriented, and highly autonomousStrong communication and documentation skillsComfortable working with both internal teams and external authoritiesFluent in English (French is a plus)Job OfferHigh-Impact, Certification-Driven Work in a Cutting-Edge DomainThisroleofferstheopportunitytoleadcritical hardware development for a next-generation Energy Storage System (ESS) within the aerospace sector, directly contributing to system certification under EASA Part-21 J. If you're passionate about working on complex, safety-critical systems that truly matter, this project puts your skills to the test-and on record with regulatory authorities.Autonomous Role with Technical Authority & FlexibilityAs a consultant, you'll have the autonomy to make key technical decisions while working in a leadership capacity. You'll be viewed as a subject matter expert, not just a contributor-providing guidance, setting standards, and shaping design processes. This is ideal for senior engineers looking to work independently while still making a significant impact.jid2c36addade jit0624ade