Top Process Engineer Jobs in San Francisco Bay Area, CA

Supports municipal wastewater treatment and infrastructure projects through planning, process design, facility upgrades, system evaluations, technical documentation, regulatory compliance, stakeholder coordination, and project management. The role evaluates physical, chemical, and biological treatment systems and contributes to scopes, budgets, schedules, permitting, and client solutions. It also provides opportunities to mentor junior staff and advance technical expertise in wastewater engineering.

Design and evaluate municipal wastewater treatment and infrastructure projects, including facility upgrades, expansions, pump stations, and collection systems. Prepare engineering calculations, drawings, specifications, reports, and compliance documentation. Coordinate with project managers, clients, multidisciplinary teams, and regulators on planning, permitting, and technical delivery. Support scopes, budgets, schedules, and work plans while mentoring junior staff and applying current wastewater standards and technologies.

Build and maintain full-stack features for Benchling’s workflow engine, recipes, assays, and related life sciences products. Develop backend services, frontend interfaces, workflow data models, and AI-enabled functionality. Collaborate with engineering, product, design, and AI teams; write tested and documented code; participate in code reviews and on-call support; and work onsite in San Francisco three days per week.

Develops and optimizes moderately complex manufacturing processes, assembly procedures, control plans, work instructions, and equipment validation activities. Leads Lean Manufacturing initiatives, provides Design for Manufacturing feedback, troubleshoots process issues, implements corrective actions, and supports root cause analysis. Collaborates with cross-functional teams and stakeholders while maintaining process documentation and quality controls. The role is primarily in-office with occasional travel to facilities, clients, or suppliers.

Leads business process improvement and organizational transformation initiatives. Analyzes workflows, maps processes, identifies inefficiencies, applies Lean and Six Sigma methods, evaluates performance data, recommends automation solutions, and partners with cross-functional leaders to implement scalable improvements and drive change adoption.

Own end-to-end process design for large-scale capital projects, including heat and material balances, PFDs, P&IDs, emissions control, and equipment sizing. Translate expert engineering judgment into capabilities for an AI-powered automated design engine. Work hands-on across gas power, industrial, chemical, or polymer plants, applying first-principles thinking and collaborating across engineering disciplines. Experience with utility-scale natural gas power, simulation tools, or AI coding agents is advantageous.

Leads enterprise process analysis, redesign, and transformation initiatives across business functions. Uses Lean, Six Sigma, DMAIC, value-stream mapping, systems engineering, process mining, and automation methods to improve cycle time, cost, quality, compliance, and capacity. Facilitates stakeholders, defines requirements and governance, establishes performance metrics, supports technology implementation, and presents recommendations to leadership. Provides mentorship and subject matter expertise without formal people-management responsibility.

Designs, commissions, and starts up large-scale chemical manufacturing processes for next-generation battery materials. Owns critical process units, develops FEED deliverables, modifies control schemes, supports scale-up, optimizes production, and drives plant improvements. Collaborates with engineering, R&D, operations, maintenance, and vendors while managing technical risks, HAZOPs, and change processes. Requires extensive plant or process design experience and frequent travel during startup.

Leads integration of benchtop NGS assays into robust, automated, production-ready workflows for an FDA-cleared diagnostics platform. Responsibilities include labware qualification, DOE-based robustness testing, failure-mode analysis, acceptance criteria, verification and validation, sequencing integration, vendor diligence, and collaboration with assay science, automation engineering, Regulatory, and Quality. The role requires hands-on experience with NGS platforms, library preparation, secondary analysis, Hamilton liquid handlers, VENUS software, and regulated laboratory processes.

Develop and optimize process models and techno-economic analyses for direct air capture demo and production facilities. Translate Aspen models into equipment sizing, cost estimates, process documentation, and vendor-ready specifications. Refine heat and mass balances, evaluate operating scenarios, support equipment selection, and identify energy, capital, and operating cost reductions. Collaborate with engineering, R&D, project management, vendors, and external design firms while presenting technical and financial findings to leadership, investors, and stakeholders.

Leads new product integration from design review through production release for multilayer PCBs and advanced materials. Responsibilities include manufacturability evaluation, prototype and qualification builds, process development and validation, ECO management, documentation, launch milestone tracking, risk mitigation, quality compliance, and manufacturing training. The role collaborates with customers and cross-functional Engineering, Quality, Supply Chain, Production, and Program Management teams in aerospace, defense, and medical device manufacturing.

Develops, implements, optimizes, and sustains PCB manufacturing processes, especially wet-process operations such as imaging, etching, plating, cleaning, and chemical treatment. The role improves yield, quality, throughput, reliability, safety, and cost through process design, statistical analysis, DOE, validation, root-cause investigation, continuous improvement, documentation, equipment evaluation, and cross-functional collaboration. It also supports new product introduction, audits, employee training, and environmental compliance.

Leads process engineering execution for complex life sciences and food and beverage projects from concept through construction, commissioning, and startup. Manages discipline budgets and scope, develops designs and construction documents, oversees quality control, coordinates clients, vendors, and multidisciplinary teams, resolves field conditions, supports construction activities, and mentors engineers and designers. Also leads feasibility studies, master planning, capacity planning, risk assessments, vendor package management, and process strategy development.

Develop and improve MEMS and silicon photonics wafer fabrication processes for optical switches. Responsibilities include device and process design, wafer processing, process short loops, failure analysis, metrology, experimental protocols, and collaboration with vendors and foundries to scale processes from prototyping to production.

Supports Process Engineers in developing and implementing project deliverables for pharmaceutical, biotech, food and beverage, and industrial facilities. Assists with manufacturing facility and equipment design, infrastructure and critical utility systems, process design documentation, and multidisciplinary coordination. The internship provides hands-on experience with renovations, retrofits, new construction, process optimization, and engineering applications under mentorship.

Optimize opto-electronic manufacturing processes for optical modules by improving yield, reducing cycle times, conducting root cause analysis, implementing corrective actions, developing work instructions and training, monitoring production metrics, leading Lean initiatives, and supporting equipment sourcing and product launches. The role collaborates cross-functionally to resolve released-product engineering challenges and reduce costs.

Provides process engineering support for metal casting, forming, and brazing operations. Troubleshoots production issues, improves quality and yield, conducts DOE and SPC, analyzes material composition and microstructure, and implements corrective actions. The role develops standardized processes and documentation, supports continuous improvement, supervises operators as needed, and coordinates with R&D, production, supply chain, and quality teams while managing multiple projects.

Leads manufacturing process transfer, validation, scale-up, sustaining engineering, and continuous improvement for life science consumables. Responsibilities include troubleshooting, root cause analysis, CAPA, process monitoring, Lean/Six Sigma implementation, NPI support, documentation, equipment onboarding, and operational readiness. The role partners cross-functionally with product development and operations while supporting cleanroom manufacturing, process qualification, yield improvement, capacity expansion, and production launch.

Lead process engineering design and execution for mining, mineral processing, material handling, and heavy industrial facilities. Develop PFDs, P&IDs, calculations, specifications, and equipment designs; coordinate multidisciplinary teams; oversee quality, safety, commissioning, and client expectations. Support proposals, business development, client relationships, conferences, and project pursuits. Mentor engineers and establish engineering standards and best practices. Regular travel to offices, project sites, and industrial facilities is expected.

Own the technical evaluation, development, optimization, scale-up, and integration of electrochemical reagent generation technologies. Design laboratory and pilot experiments, evaluate vendors and equipment proposals, develop CAPEX/OPEX models, troubleshoot pilot systems, and translate findings into process designs, operating parameters, and commercial deployment criteria. Collaborate across technology, engineering, projects, operations, and external suppliers, with up to 25% domestic and international travel.

Develops and commissions PLC-based process control systems for industrial and food and beverage manufacturing environments. Responsibilities include controls hardware specification, electrical documentation review, functional descriptions, PLC programming, instrumentation and control loop design, onsite I/O checks, commissioning, maintenance support, and operator training. The role collaborates with clients, vendors, electrical designers, process engineers, and project managers, with up to 25% travel for customer startups.

Develops, qualifies, and industrializes precision cleaning, surface treatment, coating, and contamination-control processes for semiconductor equipment components. Translates wafer-fab requirements into scalable processes, leads experiments and customer qualification programs, investigates component failures, and transfers laboratory methods into controlled production. The role interfaces with semiconductor fabs, OEMs, suppliers, operations, and customers while managing process control, root-cause analysis, CAPA, equipment ramp, technology roadmaps, and multi-site standardization.

Build and deploy AI-driven process optimization models for refineries and petrochemical plants. Scope customer opportunities, analyze plant time-series data, develop and validate process models, commission closed-loop optimizers, train operators, troubleshoot deployed models, and support plant-system integrations. The role also leads technical customer relationships, manages implementation projects, documents workflows, and channels field feedback to product and R&D teams.

Designs and implements process systems for battery materials manufacturing facilities, especially bulk material handling, conveying, blending, screening, and packaging. Develops process documentation, equipment sizing, control schemes, and safety deliverables through detailed engineering, construction, commissioning, and startup. Collaborates with multidisciplinary teams and external partners to resolve design issues, close HAZOP and MOC actions, and support reliable, compliant, cost-effective plant operations.

Own CNC process development and design machining workflows, integrate automation systems, optimize toolpaths, collaborate across teams, and lead yield improvement efforts.