1

Senior Plastics Engineer Jobs in Delaware (NOW HIRING)

Senior Plastics Engineer information

What does a senior plastics engineer do?

A Senior Plastics Engineer specializes in the design, development, and optimization of plastic materials and products. They oversee the selection of appropriate polymers, manage manufacturing processes such as injection molding or extrusion, and ensure that products meet quality and performance standards. These professionals also lead research and development projects, troubleshoot production issues, and collaborate with cross-functional teams to bring innovative plastic solutions to market.

What are the key skills and qualifications needed to thrive as a senior plastics engineer?

To thrive as a Senior Plastics Engineer, you need expertise in polymer science, materials engineering, and process optimization, typically supported by a relevant engineering degree and several years of experience in plastics manufacturing. Proficiency with CAD software, simulation tools, and knowledge of industry standards such as ASTM or ISO is crucial. Strong problem-solving skills, project management abilities, and effective communication set top candidates apart. These skills ensure the development of high-quality plastic products, efficient manufacturing processes, and successful cross-functional collaboration.

What are some typical challenges a senior plastics engineer faces when bringing a new product from concept to production?

A Senior Plastics Engineer often encounters challenges such as selecting the appropriate polymer material to balance performance and cost, designing for manufacturability, and troubleshooting issues like warping or sink marks during molding. Coordinating closely with design, manufacturing, and quality teams is essential to ensure that prototypes meet specifications and can be efficiently scaled to production. Additionally, staying updated on regulatory requirements and sustainability practices is crucial, as these can impact material selection and processing methods.

What is the difference between Senior Plastics Engineer vs Plastics Process Engineer?

AspectSenior Plastics EngineerPlastics Process Engineer
CredentialsBachelor's or Master's in Plastics Engineering, Chemical Engineering, or related field; experience preferredBachelor's in Plastics Engineering, Chemical Engineering, or related field; entry to mid-level experience
Work EnvironmentDesign, development, and oversight of plastic products and processes in manufacturing settingsFocus on optimizing plastic processing techniques and machinery in production facilities
Industry UsageUsed across plastics manufacturing, automotive, packaging, and consumer goods industriesPrimarily in manufacturing plants and process optimization roles within plastics companies

The main difference is that Senior Plastics Engineers typically have more experience and responsibilities in designing and overseeing plastic products, while Plastics Process Engineers focus on improving manufacturing processes and machinery. Both roles require similar educational backgrounds and are vital in plastics manufacturing industries.

What are popular job titles related to Senior Plastics Engineer jobs in Delaware?

For Senior Plastics Engineer jobs in Delaware, the most frequently searched job titles are:

What job categories do people searching Senior Plastics Engineer jobs in Delaware look for?

The top searched job categories for Senior Plastics Engineer jobs in Delaware are:

What cities in Delaware are hiring for Senior Plastics Engineer jobs?

Cities in Delaware with the most Senior Plastics Engineer job openings:

Infographic showing various Senior Plastics Engineer job openings in Delaware as of June 2026, with employment types broken down into 1% As Needed, 97% Full Time, 1% Part Time, and 1% Temporary. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution.

Contract Sr. Frontend Engineer

Waters Corporation

New Castle, DE • On-site

$118K - $162K/yr

Other

Re-posted 14 days ago


Job description

Overview
TA Instruments is a world leading Scientific Instrumentation company with a focus on Material Characterization.
Our instruments are pivotal in: Electric Cars, 3D Printing, batteries, recyclable plastics, space suits, candy that melts in your mouth and not your hands, paint that goes on smooth and dries without streaks, even ensuring your French fries have the perfect crunch to them! Material Science uniquely spans the fields of physics, chemistry, engineering, and manufacturing.
Our instruments and software come together to aid in accelerating the design of new materials as well as the quality of manufacturing those materials.
We are looking for an experienced Sr. FrontEnd Engineer to join our Research and Development organization and contribute to the continued success of our Thermal Analysis and Rheology products.
This is a hybrid contract position (Requiring on-site for three days a week)
Responsibilities
As a Software Engineer you will:
  • Research, design, develop and release/maintain: User interface, Data analysis, Instrument control software for thermal analysis, rheological, and calorimetric instruments.
  • Work within a formal development process covering the full development lifecycle.
  • Provide code and supporting documentation in accordance with the coding guidelines, quality processes and applicable procedures, including team's definition of done.
  • Keep a pro-active attitude to ensure continuous improvement of the software quality, work process and individual skills.
  • Provide contributions to the application architecture with a focus on scalability, maintainability, and performance.
  • Develop and maintain scalable, responsive web applications using ReactJS and TypeScript.
  • Work closely with UX/UI designers, back end engineers, product managers, and Test Automation team to translate requirements into technical implementations.
  • Build and extend reusable component libraries and adhere to established design systems.
  • Optimize application performance for fast load times and smooth user interactions.
  • Participate in code reviews, sharing constructive feedback with peers.
  • Write unit and integration tests to ensure code quality and reliability.
  • Troubleshoot and resolve technical issues, collaborating with the team to maintain application stability.
  • Stay informed about emerging front end trends, tools, and technologies, and suggest improvements.

As a Team Member you will:
  • Participate in all team meetings and ceremonies in direct collaboration with other sites, provide input and feedback, take ownership on identified improvements.
  • Actively participate in learning and sharing activities either during informal or formal training and demos.
  • Demonstrate continuous technical improvement.

Qualifications
Education:
  • You have a Bachelors Degree (preferably in a science related subject or in engineering)

Experience:
  • 5+ years of professional front-end development experience.
  • 5+ years of hands-on experience with ReactJS in production environments.
  • Strong proficiency in TypeScript, including advanced typing, generics, and interfaces.
  • Deep understanding of HTML5, CSS3, and modern layout techniques.
  • Experience with state management libraries.
  • Familiarity with front end build tools and bundlers.
  • Proficient in writing unit and integration tests using frameworks.
  • Experience with RESTful APIs integration.
  • Solid understanding of web accessibility standards (WCAG) best practices.
  • Excellent problem-solving skills and attention to detail.

Desired:
  • Experience with server-side rendering frameworks.
  • Knowledge of CI/CD pipelines and infrastructure as code.
  • Familiarity with design tools (Figma) and collaborating with design teams.
  • Experience with performance monitoring and analytics tools.
  • Familiarity with TailWind & ReactQuery.
  • Strong communication skills and ability to work effectively in cross-functional teams.

For you it's more than a job. Among other things we're strong advocates of creating quality software, and using the latest testing methodologies to ensure we meet the expectations of our customers.
Company Description
Waters Corporation (NYSE:WAT) is a global leader in life sciences and diagnostics, dedicated to accelerating the benefits of pioneering science through analytical technologies, informatics, and service. With a focus on regulated, high-volume testing environments, our innovative portfolio harnesses deep scientific expertise across chemistry, physics, and biology. We collaborate with customers around the world to advance the release of effective, high-quality medicines, ensure the safety of food and water, and drive better patient outcomes by detecting diseases earlier, managing routine infections, and combating antibiotic resistance. Through a shared culture of relentless innovation, our passionate team of ~16,000 colleagues turn scientific challenges into breakthroughs that improve lives worldwide.
Diversity and inclusion are fundamental to our core values at Waters Corporation. It benefits our employees, our products, our customers and our community. Waters complies with all applicable federal, state, and local laws. Qualified applicants are considered without regard to sex, race, color, ancestry, national origin, citizenship status, religion, age, marital status (including civil unions), military service, veteran status, pregnancy (including childbirth and related medical conditions), genetic information, sexual orientation, gender identity, legally recognized disability, domestic violence victim status, or any other characteristic protected by law. Waters is proud to be an equal opportunity workplace and is an affirmative action employer. All hiring decisions are based solely on qualifications, merit, and business needs at the time.