Composites Manufacturing Specialist Engineer

Barcelona, Spain Aerospace Full-time Posted Sep 9, 2026
Apply on AST SpaceMobile (opens in a new tab) Sourced via ast-science.com · Posted 2026-09-09

About this role

AST SpaceMobile is hiring a Composites Manufacturing Specialist Engineer, full-time, on-site in Barcelona, Spain, in the Aerospace sector.

AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today’s five billion mobile subscribers and finally bring broadband to the billions who remain unconnected.

Position Overview

We are seeking a Composites Manufacturing Specialist Engineer to support the development, qualification, and continuous improvement of composite manufacturing processes and materials.

Key Responsibilities:

· Develop engineering specifications for hand lay-up processes of prepreg parts.
· Define routing sheets for prepreg parts per engineering specifications.
· Establish and control prepreg material handling requirements, including out-time tracking, storage conditions, lot traceability, and shelf-life control.
· Lead new part qualification by defining first-article build plans, process documentation, and supporting qualification inspections.
· Develop and validate new manufacturing processes, including layup configurations, cure cycles, and bagging techniques, prior to production release.
· Follow up with new material and process suppliers, defining evaluation criteria, overseeing sample testing, and verifying conformance to specifications.
· Support the transition and qualification of automated manufacturing processes (AFP), including comparison against manual processes.
· Define and maintain routing sheets and work instructions for new and existing parts and processes.
· Define ply kit requirements based on engineering ply books and layup sequences.
· Provide engineering disposition on SCSRs and non-conformances, including containment and corrective action follow-up.
· Document lessons learned and update work instructions as new parts, processes, or suppliers are qualified.

Qualifications

Education:

Bachelor's degree in:

· Aerospace Engineering
· Mechanical Engineering
· Materials Engineering
· Manufacturing Engineering

Experience:

A minimum of 3 years of experience in composite manufacturing, depending on seniority.

Preferred Qualifications:

· Master's degree in a relevant engineering discipline.
· Experience in the aerospace sector.

Soft Skills:

· Strong problem-solving skills.
· Excellent attention to detail.
· Ability to work effectively within cross-functional teams.
· Strong written and verbal communication skills.
· Ability to manage multiple projects and priorities.

Technology Stack:

· Prepreg composite manufacturing processes.
· Hand lay-up processes.
· Automated Fiber Placement (AFP).
· Engineering specifications and routing sheets.
· Work instructions and process documentation.

Physical Requirements

· Ability to work with composite materials and manufacturing processes.
· Ability to use a computer for extended periods.
· Ability to review manufacturing documentation and engineering specifications.

This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands.

Description from AST SpaceMobile's official posting. Always confirm details on the company careers page.

Apply on AST SpaceMobile Applications go directly to AST SpaceMobile. Curated by Larry Sherwood Jr.

About AST SpaceMobile

AST SpaceMobile

Company in the mobility sector tracked nightly on the Mobility Jobs board.

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Larry Sherwood Jr.

About Larry Sherwood Jr.

Talent Acquisition Leader specializing in mobility, EV, and frontier tech. 1,000+ hires across roles ranging from production technicians to VPs, including 48 hires for the AFEELA U.S. launch at Sony Honda Mobility (98% offer acceptance, $1.5M+ agency savings). SHRM-CP certified. Build recruiting functions from scratch, no agencies.

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Curated by Larry Sherwood Jr. on the free Mobility Jobs board. Pulled nightly from company applicant tracking systems. Apply directly on the source link above to be considered.