Rubber Mold Tooling Design Engineer - Semiconductor Industry - 5 Days -3972

The Supreme HR Advisory Pte. Ltd.; Singapore; On-site; SGD 45,000 - 56,000; Full time

Job summary

The Supreme HR Advisory Pte. Ltd. is seeking a Rubber Mold Tooling Design Engineer to join our team at Joo Koon.

The role focuses on mold design and tooling engineering for high-precision semiconductor tooling applications, with a salary in the SGD range. Expect a 5-day workweek from 8:30am to 6:00pm, and on-site collaboration with the production and toolroom teams. Responsibilities include leading mold design, overseeing fabrication, trials, and troubleshooting to ensure quality, cost, and

Qualifications

• Diploma or degree in Mechanical, Manufacturing, Tooling/Tool and Die Engineering or related discipline.
• Min 5+ years of mold design/tooling engineering experience.
• Proficiency in SolidWorks and AutoCAD for mold assemblies, detailed drawings and revisions.

Responsibilities

• Review part drawings, critical dimensions, tolerances, surface requirements, material specs and production needs; identify feasibility issues before releasing a mold design.
• Develop two-plate and three-plate compression mold concepts, assemblies, component drawings and BOMs in SolidWorks and AutoCAD.
• Define cavity arrangement, parting surfaces, plate alignment, inserts, venting, flash control and demolding arrangements for the part and compound.
• Establish and validate shrinkage allowances using compound info, prior production evidence and trial measurements; record the conditions supporting each allowance.
• Select tooling materials, heat treatments and surface treatments with manufacturing/suppliers, considering stability, finish, wear, repairability and cost.
• Check mold compatibility with the intended press, including usable area, mounting, opening, loading, heating and handling arrangements.
• Review designs with toolroom/manufacturing, simplify features, standardize reusable components, and coordinate fabrication and suppliers.
• Investigate tooling nonconformances and rework; implement corrective actions with manufacturing.
• Maintain controlled design files, revision histories and technical records through fabrication and modification.
• Plan and lead mold trials with technicians and production; define sample requirements and acceptance criteria.

Skills

Mold design

Mechanical engineering

Quality mindset

Project planning

Team collaboration

Education

Diploma/degree in Mechanical, Manufacturing, Tooling/Tool & Die Eng

Tools

SolidWorks

AutoCAD

Job description

Rubber Mold Tooling Design Engineer

5 days, 8.30am- 6pm

Salary: $4000-$5000

Location: Joo Koon

Company

Manufacturer of high precision parts and tooling used in semiconductor manufacturing

Job scope

Mold design and engineering

• Review part drawings, critical dimensions, tolerances, surface requirements, material specifications and production needs; identify feasibility issues before releasing a mold design.
• Develop two-plate and three-plate compression mold concepts, assemblies, component drawings and bills of materials in SolidWorks and AutoCAD.
• Define cavity arrangement, parting surfaces, plate alignment, inserts, venting, flash control and demolding arrangements appropriate to the part and compound.
• Establish and validate shrinkage allowances using compound information, prior production evidence and trial measurements. Record the conditions supporting each allowance.
• Select suitable tooling materials, heat treatments and surface treatments with manufacturing and suppliers, considering dimensional stability, finish, wear, repairability and cost.
• Check mold compatibility with the intended press, including usable area, mounting, opening, loading, heating and handling arrangements.

Tooling manufacturability and fabrication oversight

• Review designs with the toolroom/manufacturing team for machining access, achievable tolerances, inspection access, assembly, fitting and ease of maintenance.
• Simplify difficult features and standardise reusable components where this improves quality, lead time or cost without compromising requirements.
• Coordinate internal fabrication and external tooling suppliers: communicate drawings and revisions, resolve technical queries, monitor progress and review inspection results.
• Investigate tooling nonconformances and repeated machining, fitting or assembly rework; agree corrective actions with the responsible manufacturing team.
• Maintain controlled design files, revision histories and technical records through fabrication and modification.

Mold trials and molding process development

• Plan and lead trials with technicians and production personnel; agree sample requirements, inspection methods and acceptance criteria before testing.
• Establish and refine material charge/preform preparation, loading sequence, mold temperature, pressure, curing time, venting/degas steps where applicable, and demolding conditions.
• Assess cavity-to-cavity consistency, dimensional results, flash, surface defects and part damage; document trial conditions, findings and required changes.
• Verify relevant post-cure effects with the responsible materials or process specialist when the compound and application require post-curing.
• Prepare the technical evidence for tooling acceptance and production handover, including drawings, trial reports and molding setup instructions.

Troubleshooting and yield improvement

• Diagnose tooling and molding issues such as excessive flash, incomplete filling, trapped air, sticking, dimensional variation, misalignment and premature tool wear.
• Separate tooling design/fabrication causes from compound variation, press conditions, handling and process settings; use controlled trials and measurement data to confirm causes.
• Implement and verify design or process changes with engineering, manufacturing and quality personnel.
• Track tooling fabrication acceptance/rework separately from molded-part acceptance/scrap, so improvements address the correct stage.
• Improve cycle time, usable cavity output, material utilisation and tool availability while maintaining agreed quality requirements.

Tooling repair and maintenance

• Assess tool condition and plan repairs, refurbishment, spare inserts and replacement of wear components.
• Establish mold inspection, cleaning, preservation, storage and preventive-maintenance instructions with technicians and manufacturing.
• Define checks and repeat trials needed after repairs or modifications before returning a mold to service.
• Build a practical library of proven designs, trial data, recurring defects and corrective actions.
• Allocate technician tasks, review workmanship and records, and train technicians in mold handling, assembly, trial execution and defect identification.

Requirements

• Diploma or degree in Mechanical, Manufacturing, Tooling/Tool and Die Engineering, or a related discipline
• Min 5 or more years of relevant mold design/tooling engineering experience
• Practical experience designing two-plate and three-plate compression molds, with evidence of taking designs through fabrication and trials
• Proficiency in SolidWorks and AutoCAD for mold assemblies, detailed drawings and revisions