Contract Jobs in Castro Valley, California, United States

Nuclear Medicine Department at Sutter Health delivers diagnostic imaging to support patient care. The Technologist independently performs routine and specialized nuclear medicine procedures, ensures accurate imaging, and communicates results to physicians while maintaining patient safety and privacy.

SAV Eyewear is hiring an Experienced Part-Time Retail Merchandiser to service Reader & Sunglass Displays at Save Mart locations in Castro Valley, San Leandro, and San Lorenzo, CA. Day-to-day work includes working with store management, following inventory control procedures and reading planograms, placing orders, answering questions, taking photos, and performing light cleaning and dusting. Locations are serviced once every 4 weeks on a flexible schedule on an ongoing basis, and smart phones are

Inpatient Clinical Pharmacist III on the SEMC - Sutter Eden Medical Center team, delivering patient‑centered pharmaceutical care, medication education, and safe medication therapy management. Provides clinical assessments, medication preparation, and collaborates with healthcare providers to implement care plans while ensuring compliance with regulations and privacy standards.

The Comforted Kitty is hiring a part-time, independent contractor cat sitter in the Hayward, CA area to provide in-home cat sitting visits while clients are away. You will set your own availability and service area, then be matched with clients through the company's app.

FeldCare Connects Home Health provides in‑home occupational therapy to improve patients' daily functioning and safety. The therapist assesses functional status, creates treatment plans, delivers interventions, and coordinates with caregivers and the health‑care team.

Morgan Advanced Materials' Technical Ceramics business engineers high-performance functional and structural ceramic materials, components, and sub-assemblies for demanding customer applications. The Atomizing Operator operates and maintains metal atomizing systems that convert molten metal into fine powder for additive manufacturing and powder metallurgy, controlling process parameters, performing quality checks, and supporting continuous improvement.

Hardware Software Integration team at Zoox focuses on validating and stabilizing manufacturing test infrastructure for autonomous vehicles. The role executes validation cycles, provides on-call support, and documents and triages stability issues to keep factory operations running smoothly.

Geeks On Site Field Services provides nationwide computer repair and technology support for homes and businesses. The technician troubleshoots Windows and macOS issues, resolves networking problems, installs printers, POS systems, and performs outdoor TV mounting.

Seasonal District Sales Manager for Spirit Halloween, overseeing 3 stores. Responsibilities include sales, payroll, recruiting, training, employee relations, expense control, shrink, store construction, opening, operation, and tear-down.

Brand: Spirit Halloween?The District Sales Manager is a seasonal position, which starts in July and typically ends in November. The District Sales Manager is responsible for all aspects of the store operation (average 3 stores) including, sales, payroll recruiting, training, employee relations, expense control, shrink and all related functions.

Aperia Technologies Inc. is developing hardware and data analytics solutions, including the Halo Automatic Tire Inflator and Halo Connect tire analytics platform, to improve efficiency and sustainability for commercial vehicle fleets. As an Accountant (Contract), you will support the end-to-end accounting close process, including account analysis, reconciliations, payroll, and financial reporting, while ensuring GAAP compliance and timely month-end deliverables.

This is a hands-on role focused on operational readiness and change management during the rollout of Microsoft Dynamics 365 ERP. You'll spend your time working closely with production teams, supervisors, subject matter experts, and project stakeholders. One day you might be coordinating training activities, the next you'll be reviewing workflow challenges after go-live or helping site teams understand why a process has changed.

Mechanical Assembler or Operations Technician II position at Integrated Resources, Inc. requires an intermediate‑level professional skilled in assembling electronic, mechanical, fluidic, and optical subassemblies for medical device manufacturing. The role involves following detailed production drawings, using hand and power tools to join components, routing wires, and performing inspections and functional tests under a microscope.

ZymoChem's Materials department is seeking a Temporary Pilot Production Operator to support the Materials Development team with small production runs and product testing in San Leandro, CA. The role involves hands-on pilot-scale production work, including setup, execution, monitoring, and shutdown of runs, along with lab support tasks like sample preparation, equipment cleaning, and inventory management. This on-site contract position runs approximately October 1 through February/March 2027, wit

PHNX Materials pilot plant team refines coal ash waste into sustainable fertilizer and cement substitute. The Pilot Plant Operator runs high‑solids slurry equipment, plans daily tasks, troubleshoots mechanical and process issues, and supports campaigns and customer demos.

Kinetic Automation is pioneering effortless modern vehicle repair using proprietary AI and autonomous robotics to automate vehicle maintenance and simplify repair administration for collision shops, dealerships, and insurance carriers. The temporary Collision Estimator assesses vehicle damage virtually, identifies ADAS calibration needs, and produces accurate repair estimates using high-resolution imaging and industry-leading estimating platforms.

Production team at PHNX Materials, a startup turning industrial ash into clean, valuable products, focuses on pioneering fly‑ash recycling technology. The Production Technician operates and maintains pilot‑plant equipment, troubleshoots processes, and supports real‑time plant operations to meet quality specs.

Since 1852, Ghirardelli has built a legacy of creativity and quality in chocolate manufacturing. We seek a dedicated Temporary Production Worker to join our San Leandro team for a 4‑month assignment.

Kreyco, a nationwide preK-12 education organization, connects schools with dedicated teachers to deliver technology and computer science curricula. Teachers develop and deliver engaging lessons, assess student progress, and collaborate with school staff to enhance learning outcomes.