ZipRecruiter

Log In

1

Downstream Engineer Jobs in California (NOW HIRING)

Kinetic Personnel Group

Downstream Process

Tustin, CA · On-site

Downstream Process Analytics Specialist Industry: Biopharmaceutical CDMO / Biologics Manufacturing ... Chemical Engineering Biochemistry Biology Biotechnology Biomedical Engineering Biochemical ...

Cover

AI Engineer, Weapon Detection

San Jose, CA · On-site

... with downstream engineers to efficiently integrate neural networks into our scanning system • Enhance deep neural networks and their related preprocessing and postprocessing code to ensure ...

pony.ai

Software Engineer - Evaluation

Fremont, CA · On-site

$120K - $200K/yr

Build and optimize downstream engineering workflows for Large Language Models (LLMs), programmatically steering model reasoning, establishing guardrails, and mitigating hallucinations to ensure ...

Intuitive Surgical

$148K - $196K/yr

We're a team of engineers, clinicians, and innovators united by one purpose: to make surgery ... As a Downstream Product Manager, you will drive the development, launch, and sustaining of cutting ...

next page

Showing results 1-20

All JobsDownstream Engineer JobsDownstream Engineer Jobs in California

Downstream Engineer information

What are the key skills and qualifications needed to thrive as a downstream engineer, and why are they important?

To thrive as a Downstream Engineer, you need a solid background in chemical or petroleum engineering, process optimization, and industrial safety, usually supported by a relevant engineering degree. Familiarity with process simulation software (like Aspen HYSYS or ChemCAD), industry standards, and certifications such as Professional Engineer (PE) are typically required. Strong analytical thinking, problem-solving, and effective communication skills help you collaborate with multidisciplinary teams and address operational challenges. These skills and qualifications are vital for ensuring safe, efficient, and compliant operation of refining and petrochemical processes.

What is a downstream engineer?

Downstream Engineers are professionals who work in the downstream sector of the oil and gas industry, which involves the refining of crude oil, processing of raw natural gas, and the distribution and marketing of petroleum products. They are responsible for designing, operating, and optimizing processes in refineries and petrochemical plants to ensure efficient and safe production. Downstream Engineers also work on improving product quality, reducing environmental impact, and troubleshooting operational issues. Their roles often require strong knowledge of chemical engineering, process optimization, and safety regulations.

What are some common challenges faced by downstream engineers when optimizing refinery processes?

Downstream Engineers often face the challenge of balancing efficiency, safety, and environmental compliance while optimizing refinery processes. They must troubleshoot complex systems, identify bottlenecks, and implement solutions that maximize yield without compromising product quality or safety standards. Additionally, adapting to evolving regulations and integrating new technologies, such as digital process control systems, requires continuous learning and collaboration with multidisciplinary teams. These challenges make the role dynamic and rewarding for engineers who enjoy problem-solving and innovation.
What are the most commonly searched types of Downstream Engineer jobs in California? The most popular types of Downstream Engineer jobs in California are:
Downstream Engineer jobs near you
Infographic showing various Downstream Engineer job openings in California as of August 2026, with employment types broken down into 88% Full Time, 5% Part Time, 2% Temporary, and 5% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution.

Downstream Process

Kinetic Personnel Group

Tustin, CA • On-site

Other

Posted 17 days ago

Job description

Job Title: Downstream Process Analytics Specialist Industry: Biopharmaceutical CDMO / Biologics Manufacturing Location: Irvine, CA (Onsite) Employment Type: Full-Time Schedule: Monday–Friday | Standard Business Hours (Flexibility for manufacturing support as needed) Position Summary Our client, a growing biopharmaceutical CDMO, is seeking a Downstream Process Analytics Specialist to support commercial and clinical manufacturing operations. This role will partner with Manufacturing, Process Development, Quality, and MSAT teams to analyze downstream purification process data, identify trends, optimize manufacturing performance, and support continuous process improvement initiatives. The ideal candidate will have experience working in a GMP biologics manufacturing environment with downstream purification processes and strong analytical and statistical skills. Essential Responsibilities Analyze manufacturing process data from downstream purification operations, including: Chromatography Tangential Flow Filtration (TFF) Viral Filtration Ultrafiltration/Diafiltration (UF/DF) Monitor critical process parameters (CPPs) and critical quality attributes (CQAs). Perform trend analysis using statistical tools to identify process variability and improvement opportunities. Develop dashboards and reports to communicate manufacturing performance metrics. Support investigations involving deviations, CAPAs, and out-of-trend manufacturing results. Collaborate with Manufacturing, MSAT, Process Development, Validation, and Quality teams to improve process robustness. Evaluate process yield, recovery, cycle time, and resin performance. Generate technical reports and present findings to cross-functional teams. Assist with technology transfers and process characterization studies. Support Continued Process Verification (CPV) and Process Performance Qualification (PPQ) activities. Ensure all documentation complies with GMP, FDA, and ICH guidelines. Qualifications Education Bachelor's degree in: Chemical Engineering Biochemistry Biology Biotechnology Biomedical Engineering Biochemical Engineering KPG123

Apply