Top 460 Junior staff Jobs in Corona, Ca

Cement Lab Technician III
CalPortland —Jurupa Valley, CA
- $60,000 - $70,000 a year
- Overtime
- Background check
- 5 years
- Engineering
- AD&D insurance
- Paid holidays
Senior Systems Administrator
Penhall Company —Anaheim, CA
- $115,000 - $125,000 a year
- Full-time
- Hybrid work
- 5 years
- Bachelor's degree
- Travel
Quick Apply
Junior Golf Tour Field Representative
Southern California PGA —Riverside, CA
- $17.50 an hour
- Part-time
- 18 years or older
- High school diploma or GED
- Experience working with children
- Mileage reimbursement
- Flexible schedule
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Tax Accountant – Junior & Senior Levels
Confidential —City of Industry, CA
- $20 - $60 an hour
- Temporary
- CPA
- English
- Research
- Paid training
- Mileage reimbursement
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2d
Student Ministry & Worship Leader
Life Bible Fellowship Church —Upland, CA
- $70,304 a year
- Full-time
- Background check
- US work authorization
- Typing
- Health insurance
- Dental insurance
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Junior Multimedia and Classroom Technology Analyst
University of California, Riverside —Riverside, CA
- $30.12 - $52.73 an hour
- Full-time
- Classroom
- University
- Bachelor's degree
Cashier/Customer Service
Weinerschnitzel —Riverside, CA
- $20 - $25 an hour
- Part-time
- Bilingual
- Writing skills
- In-person
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Jr Financial/Business Analyst
Society for the Promotion of Japanese Animation —Corona, CA
- From $25 an hour
- Overtime
- 18 years or older
- Management
- Ability to walk for extended periods
- Health insurance
- Dental insurance
Quick Apply
13d
Junior Analyst/Developer/specialist - Newegg Early Career Talent Program
Newegg —Diamond Bar, CA
- $22 - $30 an hour
- Part-time
- Computer Science
- Marketing
- Merchandising
- Health insurance
- Dental insurance
Technical Support Scientist
Abbott Laboratories —Pomona, CA
- $81,500 - $141,300 a year
- Full-time
- Microsoft Word
- Bachelor of Science
- Research
- Health insurance
- Tuition reimbursement
YOUTH AID
Department of Parks & Recreation —Orange County, CA
- $18.26 an hour
- Mentoring
- Fingerprint clearance
- Leadership
Junior Full Stack Web Developer (contract)
Zymo Research —Tustin, CA
- $100,000 - $120,000 a year
- Email
- Computer science
- Computer Science
- System design
- Paid holidays
- Health insurance
Junior Staff Accountant
Acrisure Protection Group —Irvine, CA
- $25 an hour
- Extended hours
- Microsoft Word
- Research
- Mid-level
- AD&D insurance
- Paid holidays
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16h
Jr. Support Technician In Person - Mon - Fri ~5:30am–2:00pm
Adroit Worldwide Media, Inc (AWM) —Santa Ana, CA
- $18 an hour
- Full-time
- Background check
- English
- US work authorization
- Health insurance
- Dental insurance
Quick Apply
Junior Software Developer
EKI Environment & Water Inc —Irvine, CA
- $100,000 - $140,000 a year
- Full-time
- Computer Science
- Bachelor's degree
- Travel
- Profit sharing
- Health insurance
6d
Staff Chemist, Manufacturing
MicroVention, Inc. —Aliso Viejo, CA
- $116,067 - $145,900 a year
- Microsoft Excel
- Microsoft Outlook
- Management
IT Support Services II-Help Desk
Courser Employment Services LLC —Riverside, CA
- $65,000 - $71,000 a year
- Full-time
- Computer science
- Azure
- Computer Science
- Paid parental leave
- Paid holidays
Care Coordinator - Upland
ROWI Teen and Parent Wellness Centers —Upland, CA
- $22 - $24 an hour
- Full-time
- School experience
- CPR Certification
- Computer literacy
- Health insurance
- Paid time off
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Jr. Staff Accountant
MINISO USA —West Covina, CA
- $25 - $27 an hour
- Full-time
- Office
- Analysis skills
- Bachelor's degree
Hairstylist
Richard Hernandez Jr —Riverside, CA
- Weekends as needed
- Cosmetology License
- Mid-level
- Communication skills
- 401(k)
- Employee discount
Quick Apply

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Cement Lab Technician III

CalPortland -
Jurupa Valley, CA

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Job Details

$60,000 - $70,000 a year

Benefits

AD&D insurance
Paid holidays
Disability insurance
Health insurance
Dental insurance
Employee assistance program
Vision insurance
Safety equipment provided

Qualifications

ASTM standards
Experimental data reports
Laboratory safety
Data analysis reporting
Construction concrete testing
English
OSHA 10
Technical report writing
Personal protective equipment (PPE) adherence
Quality reports
High school diploma or GED
Managing laboratory teams
Laboratory reports
Research report preparation
Mentoring
Safety equipment
Technical training
Productivity software
Technical Proficiency

Full Job Description

Job Summary

The Laboratory Technician III will be responsible for performing and overseeing cement laboratory operations, including sampling, preparation, and testing of materials in accordance with ASTM and AASHTO standards. This position performs advanced quality tests, analyzes data, and prepares detailed technical reports while ensuring accurate recordkeeping. The role involves coordinating daily lab activities and collaborating with chemists and management to improve testing methods and procedures. Additionally, the technician mentors junior staff, supports audits and inspections, and maintains a clean, safe, and compliant laboratory environment. Strong technical expertise, problem-solving skills, and the ability to work independently and lead others are essential for success in this role.

Benefits

CalPortland is proud to offer a comprehensive, competitive benefits package that provides health and financial support to our most important resources: our employees. Your benefits are an important part of your overall compensation at CalPortland. That’s why we give you a wide range of benefits to choose from.

Medical, Dental, Vision
- low-cost premiums even for family coverage
Company-paid life/AD&D insurance
Company-paid short-term disability
Paid sick/vacation/holiday
401k/Company Funded Pension Program (program is dependent upon location and job type)
Employee Assistance Program (EAP)
Additional voluntary benefits

Compensation

$60,000 - $70,000

Responsibilities

Assist laboratory personnel on duties that pertain to sampling, preparation, and testing of cement
Perform sample preparations and standard quality tests on Portland cement (in accordance with the most current ASTM and AASHTO standards)
Maintain clear and accurate records on test and quality data
Oversee the Physical lab daily operations
Analyze data, prepare detailed technical reports, and present findings to the Laboratory Manager and other stakeholders
Collaborate with chemists and management to develop new testing methods and optimize existing procedures
Coordinate with the Laboratory Manager to plan and prioritize workload, ensuring timely completion of high-priority tasks
Assist in laboratory audits and inspections, and ensure all documentation is up-to-date and accurate
Mentor and train Lab Technician I and II staff in advanced techniques, laboratory best practices, and safety procedures
Ensure the laboratory is properly maintained by keeping all work areas clean, organized, and compliant with housekeeping standards, and by disposing of samples in the appropriate designated waste containers
Perform any other tasks as directed by the Laboratory Manager to support laboratory operations and research initiatives

Education

High school diploma
Associate degree in Engineering Technology or equivalent preferred

Requirements/Qualifications

Minimum 5 years’ experience in similar roles in cement plant labs, Technical Centers performing cement standard tests, or similar - 7 Years’ experience preferred
Possess a strong understanding and hands-on expertise in the key tests related to cement, including all testing associated to ASTM C150, C595, C618, C989, and additional tests such as C157, C1038, C452, C1012, C1260, C1567, and any other relevant test
Possess certifications relevant to cement testing, preferred
Strong problem-solving skills and ability to work independently on complex tasks
Excellent communication and leadership abilities, with experience mentoring and training junior staff
Proficiency in data analysis and report writing, with strong attention to detail
Requires the following motions: climbing, stooping, bending, squatting, occasional lifting of up to 50 pounds, stretching, sitting, walking on uneven ground and stairs
Able to work cooperatively with others
Overtime work will be required as needed
Must meet OSHA 10 guidelines and be able to follow all CalPortland Safety Policies
ANSI approved PPE will be provided and must be used when required
Intermediate skills in Microsoft Office Suite
Must be able to speak, read and write in English

Conditions of Employment

Successful candidate must submit to a post-offer pre-employment physical examination, drug/alcohol screen, and background check. Some positions require Federal Motor Carrier Safety Administration (FMCSA) registration/clearance as well as ongoing alcohol and drug testing. In accordance with the San Francisco Fair Chance Ordinance, for work that will be performed in the San Francisco area, qualified applicants with arrest and conviction records will be considered for employment.

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Refine Your Search

junior staff jobs in corona, ca

Cement Lab Technician III

Senior Systems Administrator

Junior Golf Tour Field Representative

Tax Accountant – Junior & Senior Levels

Student Ministry & Worship Leader

Junior Multimedia and Classroom Technology Analyst

Cashier/Customer Service

Jr Financial/Business Analyst

Junior Analyst/Developer/specialist - Newegg Early Career Talent Program

Technical Support Scientist

YOUTH AID

Junior Full Stack Web Developer (contract)

Junior Staff Accountant

Jr. Support Technician In Person - Mon - Fri ~5:30am–2:00pm

Junior Software Developer

Staff Chemist, Manufacturing

IT Support Services II-Help Desk

Care Coordinator - Upland

Jr. Staff Accountant

Hairstylist

I want to receive the latest job alert for junior staff in corona, ca

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