XPENG is a leading Chinese Smart EV company that designs, develops, manufactures, and markets Smart EVs that appeal to the large and growing base of technology-savvy middle-class consumers. Founded ...
XPENG is a leading Chinese Smart EV company that designs, develops, manufactures, and markets Smart EVs that appeal to the large and growing base of technology-savvy middle-class consumers. Founded ...
Middle School Mandarin Teacher Redwood Day 3245 Sheffield Avenue Oakland, CA 94602 www.rdschool.org ... Academically, that means a world-class curriculum, the best teachers, and a focus on the individual ...
Middle School Mandarin Teacher Redwood Day 3245 Sheffield Avenue Oakland, CA 94602 www.rdschool.org ... Academically, that means a world-class curriculum, the best teachers, and a focus on the individual ...
Middle school teachers also help with organizing and chaperoning weeklong class trips once a year. ACDS teachers are expected to differentiate instruction to meet a wide range of student needs and ...
Middle school teachers also help with organizing and chaperoning weeklong class trips once a year. ACDS teachers are expected to differentiate instruction to meet a wide range of student needs and ...
XPENG is a leading Chinese Smart EV company that designs, develops, manufactures, and markets Smart EVs that appeal to the large and growing base of technology-savvy middle-class consumers. Founded ...
XPENG is a leading Chinese Smart EV company that designs, develops, manufactures, and markets Smart EVs that appeal to the large and growing base of technology-savvy middle-class consumers. Founded ...
Middle School Teacher
Sierra Madre, CA · On-site
$47K - $65K/yr
Middle School Teacher at Bethany Christian School Share on X Print Application Deadline Until ... This role is well-suited for an educator who values small class sizes, meaningful relationships ...
Middle School Teacher
Sierra Madre, CA · On-site
$47K - $65K/yr
Middle School Teacher at Bethany Christian School Share on X Print Application Deadline Until ... This role is well-suited for an educator who values small class sizes, meaningful relationships ...
Entrepreneurial Teacher (Part time)
$55K - $71K/yr
The Position The Girls' Middle School is seeking a passionate middle school educator to teach our 7th Grade Entrepreneurial Class, work closely and collaboratively with the 7th-grade team, and ...
Entrepreneurial Teacher (Part time)
$55K - $71K/yr
The Position The Girls' Middle School is seeking a passionate middle school educator to teach our 7th Grade Entrepreneurial Class, work closely and collaboratively with the 7th-grade team, and ...
Entrepreneurial Teacher (Part time)
$45K - $60K/yr
The Position The Girls' Middle School is seeking a passionate middle school educator to teach our 7th Grade Entrepreneurial Class, work closely and collaboratively with the 7th-grade team, and ...
Quick apply
Entrepreneurial Teacher (Part time)
$45K - $60K/yr
The Position The Girls' Middle School is seeking a passionate middle school educator to teach our 7th Grade Entrepreneurial Class, work closely and collaboratively with the 7th-grade team, and ...
Middle School Spanish Teacher
Thousand Oaks, CA · On-site
$49K - $66K/yr
... Middle School school located in Thousand Oaks, California ... For nearly 60 years, Carden has been known for its strong academic foundation, small class sizes ...
Quick apply
Middle School Spanish Teacher
Thousand Oaks, CA · On-site
$49K - $66K/yr
... Middle School school located in Thousand Oaks, California ... For nearly 60 years, Carden has been known for its strong academic foundation, small class sizes ...
Middle School Teacher
$30 - $40/hr
Use hands-on methods, movement, and projects that stick long after class ends * Teach life skills ... to middle schoolers this age group lights you up, not wears you out Can connect a fraction to a ...
Quick apply
Middle School Teacher
$30 - $40/hr
Use hands-on methods, movement, and projects that stick long after class ends * Teach life skills ... to middle schoolers this age group lights you up, not wears you out Can connect a fraction to a ...
AVID Tutor - Middle School
Foster City, CA · On-site
$20/hr
... class and textbook notes, etc. • Become familiar with the materials in the AVID Curriculum ... Middle School Requirements / Qualifications
AVID Tutor - Middle School
Foster City, CA · On-site
$20/hr
... class and textbook notes, etc. • Become familiar with the materials in the AVID Curriculum ... Middle School Requirements / Qualifications
Middle School Science Teacher
Tiburon, CA · On-site
$80K - $146K/yr
Bel Aire School - grades 3, 4 and 5; and Del Mar Middle School - grades 6, 7 and 8. District enrollment is approximately 1,050 students, with class size averaging typically 23-24 students. RUSD ...
Middle School Science Teacher
Tiburon, CA · On-site
$80K - $146K/yr
Bel Aire School - grades 3, 4 and 5; and Del Mar Middle School - grades 6, 7 and 8. District enrollment is approximately 1,050 students, with class size averaging typically 23-24 students. RUSD ...
26/27 Middle School Math Teacher
San Francisco, CA · On-site
$54K - $71K/yr
Facilitate students' social, emotional, and academic development using Responsive Classroom procedures to manage the class and any student behavior issues. * Deep understanding of middle school ...
Quick apply
26/27 Middle School Math Teacher
San Francisco, CA · On-site
$54K - $71K/yr
Facilitate students' social, emotional, and academic development using Responsive Classroom procedures to manage the class and any student behavior issues. * Deep understanding of middle school ...
26/27 Middle School Math Teacher
San Francisco, CA · On-site
$54K - $71K/yr
Facilitate students' social, emotional, and academic development using Responsive Classroom procedures to manage the class and any student behavior issues. * Deep understanding of middle school ...
26/27 Middle School Math Teacher
San Francisco, CA · On-site
$54K - $71K/yr
Facilitate students' social, emotional, and academic development using Responsive Classroom procedures to manage the class and any student behavior issues. * Deep understanding of middle school ...
Middle School Spanish Teacher
$65K - $70K/yr
Since 1984, Action Day Middle School has been empowering students in grades 5-8 to become ... With small class sizes, a strong sense of community, robust electives, athletics, and enrichment ...
Middle School Spanish Teacher
$65K - $70K/yr
Since 1984, Action Day Middle School has been empowering students in grades 5-8 to become ... With small class sizes, a strong sense of community, robust electives, athletics, and enrichment ...
Middle School Spanish Teacher
San Jose, CA · On-site
$65K - $70K/yr
Since 1984, Action Day Middle School has been empowering students in grades 5-8 to become ... With small class sizes, a strong sense of community, robust electives, athletics, and enrichment ...
Quick apply
Middle School Spanish Teacher
San Jose, CA · On-site
$65K - $70K/yr
Since 1984, Action Day Middle School has been empowering students in grades 5-8 to become ... With small class sizes, a strong sense of community, robust electives, athletics, and enrichment ...
Middle School Spanish Teacher
San Jose, CA · On-site
$65K - $70K/yr
Since 1984, Action Day Middle School has been empowering students in grades 5-8 to become ... With small class sizes, a strong sense of community, robust electives, athletics, and enrichment ...
Middle School Spanish Teacher
San Jose, CA · On-site
$65K - $70K/yr
Since 1984, Action Day Middle School has been empowering students in grades 5-8 to become ... With small class sizes, a strong sense of community, robust electives, athletics, and enrichment ...
Middle School Science Teacher
San Jose, CA · On-site
$53K - $70K/yr
Middle School Science Teacher at Escuela Popular Share on X Print Application Deadline Until Filled ... class offerings, and services to meet the increasing need. By 2002, EP achieved independence and ...
Middle School Science Teacher
San Jose, CA · On-site
$53K - $70K/yr
Middle School Science Teacher at Escuela Popular Share on X Print Application Deadline Until Filled ... class offerings, and services to meet the increasing need. By 2002, EP achieved independence and ...
Prospective Middle School Teacher Applicants
$90K - $174K/yr
Prospective Middle School Teacher Applicants at Menlo School Share on X Print Application Deadline ... Full-time teachers at Menlo School are responsible for four class sections, overseeing a student ...
Prospective Middle School Teacher Applicants
$90K - $174K/yr
Prospective Middle School Teacher Applicants at Menlo School Share on X Print Application Deadline ... Full-time teachers at Menlo School are responsible for four class sections, overseeing a student ...
Middle/High School Teacher- General Posting
Sun Valley, CA · On-site
$46K - $63K/yr
High School or Middle School Principal Education/Experience Required/Preferred: A four-year ... Assign and grade class work, homework, tests and assignments and provide appropriate feedback on ...
Middle/High School Teacher- General Posting
Sun Valley, CA · On-site
$46K - $63K/yr
High School or Middle School Principal Education/Experience Required/Preferred: A four-year ... Assign and grade class work, homework, tests and assignments and provide appropriate feedback on ...
Middle School Science Teacher
Thousand Oaks, CA · On-site
$48K - $63K/yr
Middle School Teaching/Science Date Posted: 6/24/2026 Location: Sequoia Middle School Date ... throughout the class and school campus. * Evaluates academic and social growth of students ...
Middle School Science Teacher
Thousand Oaks, CA · On-site
$48K - $63K/yr
Middle School Teaching/Science Date Posted: 6/24/2026 Location: Sequoia Middle School Date ... throughout the class and school campus. * Evaluates academic and social growth of students ...
Middle Class information
See California salary details
$5.22 - $7.22
0% of jobs
$7.22 - $9.23
0% of jobs
$9.23 - $11.24
0% of jobs
$11.24 - $13.24
0% of jobs
$13.24 - $15.25
0% of jobs
$15.25 - $17.25
0% of jobs
$17.25 - $19.26
0% of jobs
$20.40 is the 25th percentile. Wages below this are outliers.
$19.26 - $21.27
44% of jobs
The median wage is $21.77 / hr.
$21.27 - $23.27
24% of jobs
$24.72 is the 75th percentile. Wages above this are outliers.
$23.27 - $25.28
9% of jobs
$25.28 - $27.28
22% of jobs
$5
$22
$27
How much do middle class jobs pay per hour?
What are the key skills and qualifications needed to thrive as a Middle School Teacher, and why are they important?
What are examples of middle class workers?
What are some common challenges faced by professionals working in middle management positions?
What is the best job for middle class?
Are you middle class if you make $100,000 a year?
What is the difference between Middle Class vs Customer Service Representative?
| Aspect | Middle Class | Customer Service Representative |
|---|---|---|
| Required Credentials | High school diploma or equivalent; some roles may require associate degrees | High school diploma or equivalent; on-the-job training |
| Work Environment | Varies from office settings to retail or service industries | Call centers, retail stores, or online support |
| Industry Usage | Broad socioeconomic class, not industry-specific | Customer service across multiple industries like retail, telecom, and banking |
The comparison between Middle Class and Customer Service Representative highlights that the middle class is a socioeconomic group, whereas a customer service representative is a specific job role within various industries. While both may require similar educational backgrounds, their work environments and industry applications differ significantly. Understanding these distinctions helps clarify career paths and socioeconomic classifications.
What does 'middle class' mean?
What jobs are in the middle class?

Full-time
Posted 6 days ago
Key responsibilities
Develop and improve 2D traffic sign detection models for autonomous driving perception systems.
Prepare, clean, curate, and analyze training and evaluation datasets for traffic sign recognition model iteration.
Build and maintain evaluation pipelines for traffic sign recognition models, including offline metrics, scenario-based evaluation, regression testing, and error analysis.
Job description
XPENG is a leading smart technology company at the forefront of innovation, integrating advanced AI and autonomous driving technologies into its vehicles. They are seeking a Staff Machine Learning Engineer to work on Traffic Sign Recognition model development for autonomous driving systems, responsible for improving model performance and collaborating with various teams.
Responsibilities:
• Develop and improve 2D traffic sign detection models for autonomous driving perception systems.
• Analyze TSR-related scenarios and failure cases, including missed detections, false positives, occlusions, small objects, rare signs, region-specific signs, and adverse weather or lighting conditions.
• Prepare, clean, curate, and analyze training and evaluation datasets for TSR model iteration.
• Design and execute model training experiments, including data sampling, augmentation, loss tuning, class imbalance handling, and hard-case mining.
• Build and maintain evaluation pipelines for TSR models, including offline metrics, scenario-based evaluation, regression testing, and error analysis.
• Collaborate with data teams to define mining strategies for long-tail TSR scenarios and improve dataset coverage.
• Optimize models for production deployment, including ONNX / TensorRT / quantization / inference acceleration.
• Work with deployment and platform teams to validate model performance on onboard or edge compute platforms.
• Track model performance across versions and support continuous improvement through data-model-evaluation feedback loops.
• Debug issues across the full stack, including data quality, labeling, model behavior, evaluation mismatch, and deployment consistency.
Qualifications:
Required:
• Master’s, or PhD degree in Computer Science, Electrical Engineering, Robotics, Computer Vision, Machine Learning, or a related field.
• 3-5 years of strong hands-on experience with computer vision models, especially object detection.
• Experience with detection architectures such as YOLO, Faster R-CNN, DETR/Deformable DETR, RT-DETR, RTMDet, or similar models.
• Proficiency in Python and deep learning frameworks such as PyTorch or TensorFlow.
• Solid understanding of object detection training workflows, including dataset preparation, augmentation, loss functions, evaluation metrics, and model debugging.
• Experience with common detection metrics such as mAP, precision/recall, false positive/false negative analysis, and class-level performance breakdown.
• Strong data analysis and problem-solving skills.
• Ability to work cross-functionally with model, data, infrastructure, and deployment teams.
Preferred:
• Experience in autonomous driving, ADAS, robotics, or safety-critical perception systems.
• Experience with traffic sign recognition, traffic light recognition, road object detection, or small-object detection.
• Familiarity with long-tail scenario mining, hard negative mining, class imbalance handling, and dataset curation.
• Experience with ONNX, TensorRT, model quantization, C++ inference pipelines, CUDA, or edge deployment.
• Experience debugging training-to-deployment consistency issues, including preprocessing mismatch, postprocessing mismatch, quantization accuracy drop, or runtime performance bottlenecks.
• Familiarity with large-scale data pipelines, scenario tagging, or automated data mining workflows.
• Strong engineering discipline in experiment tracking, reproducibility, regression testing, and model version management.
Company:
XPENG is a leading Chinese Smart EV company that designs, develops, manufactures, and markets Smart EVs that appeal to the large and growing base of technology-savvy middle-class consumers. Founded in 2014, the company is headquartered in Guangzhou, CHN, with a team of 10001+ employees. The company is currently Late Stage.