Mechanical Engineer - Manufacturing

Doris Dev; Hong Kong; On-site; HKD 420,000 - 640,000; Full time

Job summary

Doris Dev is seeking a hands-on Mechanical Manufacturing Engineer to act as the technical point of contact between CM/Supplier/Factory and the Doris Dev team. You will lead updates from RFQ through tooling and mass production, and document supplier input for the broader team.

Travel to supplier sites in mainland China is required on a regular basis. The role requires 4+ years in consumer product development or supplier-side engineering, with strong CAD skills (OnShape/SolidWorks) and fluency in

Qualifications

• 4+ years of experience in consumer product development or supplier-side engineering.
• Proficient in 3D CAD and 2D drawings (OnShape or SolidWorks preferred).
• Fluent in English, Cantonese, and Mandarin (speaking, reading, and writing).
• Familiarity with high-volume manufacturing processes and plastics, glass, metals, and rubbers. Injection molding exposure needed.

Responsibilities

• Lead Manufacturing updates from RFQ handoff through tooling, off-tool sampling, and mass production.
• Collect, clarify, and document supplier input for the broader team.
• Drive decisions to closure by securing approvals and direction from internal stakeholders.
• Maintain the engineering record for each program: logs, DFM comments, change logs, and prototype evaluations.
• Coordinate engineering activities with suppliers and prototypers.
• Provide engineering support for vendors to solve product quality problems.
• Travel to supplier sites in mainland China on a regular basis.

Skills

3D CAD

2D drawings

English

Cantonese

Mandarin

Problem solving

Education

Engineering degree

Tools

OnShape

SolidWorks

Job description

Location: Cheung Sha Wan, Kowloon, Hong Kong (with regular travel to supplier sites in mainland China)

Reports to: Sr Manufacturing Engineer Lead

Role: Mechanical Manufacturing Engineer

Type: Full-Time; In-Office

Location: Cheung Sha Wan, Kowloon, Hong Kong (with regular travel to supplier sites in mainland China)

Reports to: Sr Manufacturing Engineer Lead

About Doris Dev

Doris Dev is a consumer product development company. We help companies make new products and bring them to market. Our main hubs are in New York City and Hong Kong. Doris Dev works with startups and established companies across many consumer categories including: packaging, cookware, hardware and electronics, cookware, soft-goods, and packaging. Doris Dev also incubates internal brands (such as Canopy and Rally ) and grows and supports these brands to launch and beyond.

We are looking for someone who:

• Is a motivated, hands-on Mechanical Manufacturing Engineer who is comfortable being the technical point of contact between a CM/Supplier/Factory and the Doris Dev team.
• Has several years experience in consumer product development and consumer product manufacturing, or supplier-side engineering
• Is willing to research, learn, adapt, and take initiative

The Job

As Manufacturing Engineer, you will:

• Lead Manufacturing updates from RFQ handoff through tooling, off-tool sampling, and mass production
• Collect, clarify, and document supplier input for the broader DD team- Engineers, PMs and Industrial Designer
• Drive decisions to closure by securing approvals, counter-proposals, and direction from internal stakeholders
• Maintain the engineering record for each program: issue logs, DFM comments, change logs, and prototype evaluations, and work closely with supplier to complete root cause analysis of failures
• Coordinate engineering activities with suppliers and prototypers
• Provide engineering support for vendors to solve product quality problems with existing products.
• Travel to supplier sites in mainland China on a regular basis.

The Responsibilities

Project Handoff & Supplier Engagement

• Take ownership of the full project at project kickoff with the NY engineering team following RFQ: PRD, CMF, CAD, drawings, any and all technical & material requirements.
• Work closely with engaged suppliers to distribute, review, clarify and add further definition as necessary. Clarify project objectives with suppliers, resolve ambiguity before it becomes cost, and flag any new technical, tooling, material, or cost challenges

Pre-Tooling Development & Change Management

• Capture supplier proposals- including reasoning, CAD proposals, and any material or process substitutions. Document proposed changes clearly and assess their implications.
• Maintain a single, current source of truth for what each supplier has actually committed to build.

Prototype Evaluation & Reporting

• Complete full evaluations of prototypes, reviewing performance and recording all deltas: cosmetic, functional, dimensional, and performance. Producing a clear written evaluation for the team.

Design-For-Manufacturing (DFM) & Tooling Kickoff

• Responsible for Design for Manufacturing review ahead of tooling kickoff- collecting, reviewing, and providing feedback complete DFM analysis from suppliers for all components. Setting expectations with suppliers on DD requirements as necessary.

Tooling, T1 & Off-Tool Sampling

• Act as the first line of review on off-tool samples and on every subsequent off-tool component review.
• Inspect for cosmetic, functional, dimensional, and performance issues, and document findings component by component.
• Define and propose Designs of Experiment to isolate root cause and validate nuanced issues arising across sampling rounds.
• Update the issue log deck every round, and communicate all engineering documentation to the broader DD team

General

• Handle multiple programs concurrently at different stages of development.
• Provide regular project updates by email and call, including early morning or evening calls with the NY team.
• Proactive problem solving and excellent documentation discipline.
• Support the DDHK team on sample logistics between HK, mainland China, and NY as programs require.

The Qualifications

• Engineering degree, preferably Mechanical Engineering- but may also include degrees in Industrial Design, Mechanical Automation, Mechanical Design and Manufacturing, or a related field
• 4+ years of experience in consumer product development and consumer product manufacturing, or supplier-side engineering
• Professional working knowledge of 3D CAD and 2D drawings (OnShape or SolidWorks preferred)
• Fluent in English, Cantonese, and Mandarin (speaking, reading, and writing). Writes and documents clearly, in English, for an audience that is not in the room
• Familiarity with high-volume manufacturing processes and a working understanding of plastics, glass, metals, and rubbers. Working knowledge of Injection molding is a requirement. With Exposure to DFM review, tooling, and off-tool sampling, or a demonstrated eagerness to learn new materials quickly.
• Proactive problem solving, including root cause analysis and DOE creation.
• Ability to travel up to 50% of the time to suppliers in China and sometimes other countries. Valid travel documentation for mainland China is required.

Bonus

• Experience working with US-based teams or in a startup environment.
• Experience across diverse categories and processes - infant product, toys, kitchenware, IoT and connected devices, small appliances.
• Hands-on prototyping, 3D printing, or shop experience.

Doris Dev is an equal opportunity employer. We are proud to foster a workplace free from discrimination. We firmly believe that a diversity of experience, perspectives, and background lead to a better environment for our employees and to better results for our clients. We strongly encourage diverse candidates to apply.