Avionics Manufacturing Specialist

About CastelionCastelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.Avionics Manufacturing Specialist Castelion is looking for an Avionics Manufacturing Specialist, reporting to the Head of Avionics,to support the development of the systems that will be required for the design and build of long-range hypersonic strike vehicles. This will be a full-time, exempt position located in our El Segundo facility. As an Avionics Manufacturing Specialist, you will work closely with our engineering teams to execute highly technical electrical builds for our research vehicles, assist in advancing designs, and play a critical role in defining and maturing manufacturing, assembly and integration processes.ResponsibilitiesWork with avionics engineering by rapidly iterating electronic components and cablesConstruct superior wire cables, perform PCB assembly rework, assemble, and test racks/systems, electro-mechanical units, engineering enclosures, and test equipmentCreate and record testing systems and cable diagrams according to engineer-selected testing gearCollaborate closely with engineering to transform concepts into realityMonitor one's own work progress against established standards and deliver all work on scheduleExamine, interpret, and use drawings and regulated documentation and proceduresUnderstand intricate cable harnesses, wiring diagrams, mechanical and layout drawings, and geometric dimensioning and tolerancingVerify flight hardware and thoroughly document outcomesAid in developing manufacturing processes for initial production runsContribute to projects aimed at increasing operational efficiency in the areaBasic Qualifications5+ years of avionics technician experienceExperience reading PCBA schematics and execute reworkCapability to rework 0201 SMD and BGA components in tight spacesExperience read wiring harness drawings to build and troubleshoot laboratory and flight articlesKnowledge of and adherence to industry standards, such as IPC-610 and IPC-620Proficient with test equipment such as multimeters, oscilloscopes, and signal generators.Demonstrated direct or indirect leadershipPreferred QualificationsExperience in a research and development environmentPrevious involvement in a high-speed production environment, handling flight hardwarePrior involvement in a high-output environment, involving hands-on experience in constructing cables, electro-mechanical devices, or building prototypesAbility to acclimate to frequently changing assignments and a fast-paced working environmentExcellent communication skills, both written and oral, along with effective teamwork abilitiesSuperb focus and attention to detail, with remarkable work efficiency and accuracyExperience with soldering PCBAs, including soldering in tight spaces such as 0402 packages and high-density ICs, installing jumpers, and performing dead-buggingExpertise in manufacturing and repairing intricate testing systemsFamiliarity with Atlassian tools such as SVN, Confluence, and JIRABasic comprehension of electronic principles and theorySkills in project managementAdditional RequirementsMust be willing to work extended hours and/or weekends as neededMust be able to travel up to 30%All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medial, vision, and dental insurance, and the company offers three weeks of paid time off per year.Leadership QualitiesBias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.ITAR Requirements:To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Created: 2026-05-13