Seeking Packaging Engineer to Redesign 1L Carbonated PET Bottle (Solve CO₂ “Bottle Creep”) Ended

About the job

Maison VIVE is a luxury sparkling water brand seeking an experienced PET bottle design engineer to refine our existing 1L PET bottle. Our current custom cylindrical bottle with a champagne-style punt base is experiencing deformation (“bottle creep”) under carbonation pressure. We need structural design improvements that eliminate creep while preserving the punt base aesthetic and minimizing new tooling costs.

Project Background
Bottle Specs: 1.0L PET bottle using an approximately 65g preform. Cylindrical profile with decorative vertical ribs (currently not structurally effective). Champagne-style punt base for a premium look. Carbonation around 4 volumes CO2, similar to premium sparkling waters.
Issue: Approximately 30–35 percent of filled bottles show visible bulging or expansion after carbonation, primarily around the base and lower body.
Constraints: The punt-style base must be retained (no petaloid base unless absolutely unavoidable). Neck finish and bottle height must remain compatible with our existing SIDES siphon closure and dispensing system. Preference is to avoid a new preform mold; solutions should focus on blow mold geometry changes. Minor weight increases or small mold inserts are acceptable, but major new tooling is out of scope.

Deliverables

1. Diagnostic Report: A short memo identifying likely causes of creep (geometry, material distribution, stress points) and the proposed design strategy to address them.
2. Redesign Options: CAD concepts showin... read more
Maison VIVE is a luxury sparkling water brand seeking an experienced PET bottle design engineer to refine our existing 1L PET bottle. Our current custom cylindrical bottle with a champagne-style punt base is experiencing deformation (“bottle creep”) under carbonation pressure. We need structural design improvements that eliminate creep while preserving the punt base aesthetic and minimizing new tooling costs.

Project Background
Bottle Specs: 1.0L PET bottle using an approximately 65g preform. Cylindrical profile with decorative vertical ribs (currently not structurally effective). Champagne-style punt base for a premium look. Carbonation around 4 volumes CO2, similar to premium sparkling waters.
Issue: Approximately 30–35 percent of filled bottles show visible bulging or expansion after carbonation, primarily around the base and lower body.
Constraints: The punt-style base must be retained (no petaloid base unless absolutely unavoidable). Neck finish and bottle height must remain compatible with our existing SIDES siphon closure and dispensing system. Preference is to avoid a new preform mold; solutions should focus on blow mold geometry changes. Minor weight increases or small mold inserts are acceptable, but major new tooling is out of scope.

Deliverables

1. Diagnostic Report: A short memo identifying likely causes of creep (geometry, material distribution, stress points) and the proposed design strategy to address them.
2. Redesign Options: CAD concepts showing a range of solutions, from minimal tweaks (subtle ribs or shape changes) to more robust modifications, while maintaining a premium look and punt base. Each option should include manufacturability notes and any impact on filling or production.
3. Revised CAD Files: After selecting a direction, delivery of updated 3D CAD files (STEP or SolidWorks) plus 2D engineering drawings with critical dimensions, tolerances, and specifications suitable for blow mold quoting.
4. Test Plan and Acceptance Criteria: A simple validation plan outlining carbonation level, storage conditions, duration, and clear pass/fail criteria (for example, no visible creep or paneling beyond a defined threshold).
5. Support During Handoff: Availability for one to two calls with our bottle manufacturer to explain design intent and support initial sample runs.

Success Criteria
The redesigned bottle must eliminate visible creep under normal carbonation, handling, and shelf-life conditions, while preserving the tall cylindrical silhouette and punted base that define our brand. Manufacturing should be feasible via a new blow mold with minimal line or process changes, ideally using the existing preform.

Ideal Candidate
Experience: Proven background designing PET bottles for carbonated beverages such as soda, beer, or sparkling water. Experience with punt or champagne-style bases is strongly preferred.
Technical Skills: Strong 3D CAD capability (SolidWorks, NX, or similar), solid understanding of PET behavior under pressure, and familiarity with blow molding constraints. Ability to reason through stress points and design for manufacturability, with prior production experience.
Design Sensibility: Ability to balance structural performance with a luxury aesthetic, using subtle or internal reinforcements where possible.
Communication: Clear, practical communicator who can document decisions and collaborate with both our team and manufacturing partners.

Timeline
We plan to kick off within one to two weeks. Initial analysis and concept options are expected within 7–10 days of project start, with final CAD and drawings targeted within 3–4 weeks including iterations. This project is time-sensitive due to upcoming pilot runs.

How to Apply
Please submit a brief cover letter outlining relevant experience with carbonated PET bottles, your general approach to reducing creep in a punt-base design, examples or descriptions of past bottle projects if available, confirmation of availability for the timeline, and any initial questions. Shortlisted candidates may be invited to a brief Zoom or message interview. We will be selecting quickly. read less
Maison VIVE is a luxury sparkling water brand seeking an experienced PET bottle design engineer to refine our existing 1L PET bottle. Our current custom cylindrical bottle with a champagne-style punt base is experiencing deformation (“bottle creep”) under carbonation pressure. We need structural design improvements that eliminate creep while preserving the punt base aesthetic and minimizing new to... read more
Maison VIVE is a luxury sparkling water brand seeking an experienced PET bottle design engineer to refine our existing 1L PET bottle. Our current custom cylindrical bottle with a champagne-style punt base is experiencing deformation (“bottle creep”) under carbonation pressure. We need structural design improvements that eliminate creep while preserving the punt base aesthetic and minimizing new tooling costs.

Project Background
Bottle Specs: 1.0L PET bottle using an approximately 65g preform. Cylindrical profile with decorative vertical ribs (currently not structurally effective). Champagne-style punt base for a premium look. Carbonation around 4 volumes CO2, similar to premium sparkling waters.
Issue: Approximately 30–35 percent of filled bottles show visible bulging or expansion after carbonation, primarily around the base and lower body.
Constraints: The punt-style base must be retained (no petaloid base unless absolutely unavoidable). Neck finish and bottle height must remain compatible with our existing SIDES siphon closure and dispensing system. Preference is to avoid a new preform mold; solutions should focus on blow mold geometry changes. Minor weight increases or small mold inserts are acceptable, but major new tooling is out of scope.

Deliverables

1. Diagnostic Report: A short memo identifying likely causes of creep (geometry, material distribution, stress points) and the proposed design strategy to address them.
2. Redesign Options: CAD concepts showing a range of solutions, from minimal tweaks (subtle ribs or shape changes) to more robust modifications, while maintaining a premium look and punt base. Each option should include manufacturability notes and any impact on filling or production.
3. Revised CAD Files: After selecting a direction, delivery of updated 3D CAD files (STEP or SolidWorks) plus 2D engineering drawings with critical dimensions, tolerances, and specifications suitable for blow mold quoting.
4. Test Plan and Acceptance Criteria: A simple validation plan outlining carbonation level, storage conditions, duration, and clear pass/fail criteria (for example, no visible creep or paneling beyond a defined threshold).
5. Support During Handoff: Availability for one to two calls with our bottle manufacturer to explain design intent and support initial sample runs.

Success Criteria
The redesigned bottle must eliminate visible creep under normal carbonation, handling, and shelf-life conditions, while preserving the tall cylindrical silhouette and punted base that define our brand. Manufacturing should be feasible via a new blow mold with minimal line or process changes, ideally using the existing preform.

Ideal Candidate
Experience: Proven background designing PET bottles for carbonated beverages such as soda, beer, or sparkling water. Experience with punt or champagne-style bases is strongly preferred.
Technical Skills: Strong 3D CAD capability (SolidWorks, NX, or similar), solid understanding of PET behavior under pressure, and familiarity with blow molding constraints. Ability to reason through stress points and design for manufacturability, with prior production experience.
Design Sensibility: Ability to balance structural performance with a luxury aesthetic, using subtle or internal reinforcements where possible.
Communication: Clear, practical communicator who can document decisions and collaborate with both our team and manufacturing partners.

Timeline
We plan to kick off within one to two weeks. Initial analysis and concept options are expected within 7–10 days of project start, with final CAD and drawings targeted within 3–4 weeks including iterations. This project is time-sensitive due to upcoming pilot runs.

How to Apply
Please submit a brief cover letter outlining relevant experience with carbonated PET bottles, your general approach to reducing creep in a punt-base design, examples or descriptions of past bottle projects if available, confirmation of availability for the timeline, and any initial questions. Shortlisted candidates may be invited to a brief Zoom or message interview. We will be selecting quickly. read less
Manufacture Technical Drawings- Bottle PET with Siphon. Maison Vive.PDF pdf Jan 22, 2026

Things to know

Job location

Remote

Work location

Job skill level

Expert

Skill Level

Job rate

Open budget

Hourly

Job type

Part-time

Job type

Job length

Under 1-month

Job duration

Areas of expertise

3D CAD Design 3D Mold Design Blow Molding Design Blow Molding Design PET Design for Manufacturing (DFM FEA Finite Element Analysis Mechanical Engineering Packaging Engineering +5 more

Job categories

Packaging Design Product Engineering Services Packaging Concept Design Design for Manufacturability (DFM Services) +1 more

About the client

Payment ready

Mexico (10:19 pm)

Posted

Active

Job activity

13 Applicants

3 interviews in progress

8 unanswered invites

Similar jobs

Mechanical Engineer for CNC-Machined Product Development

Remote - Posted
RealBlanks is seeking an experienced mechanical design engineer to develop a precision-machined product from an initial concept through production-ready files. The project...
Product Engineering Services Mechanical Design Services Machine Design CNC Programming Mechanical Engineering
View job

Packaging Designer — Prestige Skincare Jar & Box (CAD + Renders)

Remote - Posted
We're launching a prestige skincare brand and need an approved packaging concept turned into a full manufacturable specification. Concept: a heavyweight, smoked-obsidian fr...
Packaging Design 3D Product Rendering and Design 3D Design Services
View job

Mechanical CAD design for premium cosmetic dispensing pen (multi-cartridge shade mixing

Remote - Posted
I'm developing a pen-shaped handheld cosmetic device that mixes and dispenses a custom foundation shade from multiple base-color cartridges into a jar, based on a formula sent...
Mechanical CAD Design Product Engineering Services Mechanical Design Services
View job

CAD designer needed to model 3D consumer product (DFM)

India - Posted
We are designing the production enclosure for Chiguru, a compact smart plant-watering timer device. We have functional prototype electronics, a solenoid valve, and a DC pump....
3D Product Modeling Design for Manufacturability (DFM Services) 3D Design Services
View job

R&D and NPD

Remote - Posted
We established manufacturing company in India with a fully equipped machine shop and production facility. We want to fast-track the development of a high-quality, durable, and...
Product Engineering Services Concept Design Prototype Design Services
View job

Mechanical Engineer for Innovative Floor Drain Cartridge Development

Remote - Posted
Hello, I am looking for an experienced mechanical/product development engineer to improve and innovate an odor-blocking cartridge for a floor drain. An initial CAD desig...
Product Engineering Services Mechanical Design Services Mechanical Engineering Prototype Design Engineering
View job

How it works

Find hourly jobs

Find hourly jobs

Top rated experts are regularly hired for hourly jobs & ongoing client work.
Fixed-rate jobs

Fixed-rate jobs

Experts can browse & apply to fixed-rate work & quote on a flat-rate basis.
Design contests

Design contests

Experts build a reputation and earn prizes by participating in design challenges.

About Cad Crowd

4.9/5.0

(Our client satisfaction)

G2 2022

Spring high performer

207,851

global members

33,356

projects delivered to clients


Trusted by
US Army Corps of Engineers
Tiffany
BCG
Target
KPMG
Xprize

Find freelance & remote jobs

Your next big opportunity is just a click away. Create a free profile and start finding work tailored to your skills.