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Coding Jobs in Ontario, CA

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Coding • ontario ca

Last updated: 2 hours ago

Remote Software Engineering, Data Science, and Systems Design Experts - AI Trainer ($60-$100 per hour)

MercorChino, California, US
Remote
Full-time +1

Location:** US-Based and Non-US-Based**Type**: Full-time or Part-time Contract Work **Fluent Language Skills Required:** English **Why This Role Exists** Mercor partners with leading AI teams to im...Show more

Project Controls Specialist - Cost Engineer

PM2CM, Inc.Pomona, CA, United States
Full-time

Monitor the overall integrity of the project budget and forecast in accordance with approved standard operating procedures.Provide quality assurance to College functional staff regarding all financ...Show more

Remote Litigation & Disputes Expert - AI Trainer ($110-$150 per hour)

MercorUpland, California, US
Remote
Part-time

What you'll do** Mercor is partnering with leading AI labs to advance frontier agent evaluations in litigation.As a Litigation & Disputes Expert, you'll build long-horizon litigation tasks that mir...Show more

 • New!

CC&B IT Lead

EsselPomona, CA, US
Full-time
Quick Apply

CC&B IT Lead - Join our team at Essel!.As the CC&B IT Lead, you will be responsible for managing and supporting the Customer Care and Billing (CC&B) system.This system plays a critical role, and yo...Show more

Optometrist - Part Time

PARK AVENUE OPTOMETRY INCpomona, CA, US
Part-time

Part-Time Optometrist Opportunity.Are you looking for an opportunity to provide meaningful care in a welcoming, patient-centered practice? At Park Avenue Optometry, we believe in delivering.Why You...Show more

AI Education Consultant – K-12 Strategy & Innovation (Ind. Contractor)

Beyond Tech EdChino Hills, CA, US
Full-time +1

BeyondK12 (formaly Beyond Technology Education) helps K-12 schools prepare students for high school, college, careers, and the AI-powered future.Next Generation Technology Program (NGTP).AI-driven ...Show more

Remote Godot Game Engine expert

Micro1Pomona, California, US
Remote
Full-time

AI labs train foundational models and enterprises build AI agents.We provide frontier evaluations and reinforcement learning environments used to improve LLM capabilities, as well as contextual eva...Show more

 • Promoted

Medical Billing and Coding - Entry Level Training Program

DreamboundMontclair, California, United States
Full-time

Note : This is an educational program, not a job.Successful completion of the program does not guarantee employment but will equip you with valuable skills for the healthcare job market.Looking to ...Show more

Real Estate Services Administrator

AA2ITOntario, CA, United States
Full-time

Real Estate Services Administrator.Pay Rate: $30/HR on W2 Hours: M-F 8am - 5pm - In-Person Location: 3991 Grand Ave, Ste B, Chino, CA, 91710 Assignment Duration: 4 months Potential to convert to FT...Show more

Accounts Payable Specialist

Rebel Convenience StoresUpland, CA, US
Full-time
Quick Apply

Full-cycle Accounts Payable include verifying receiving or obtaining approval, matching vendor invoices to posted vouchers, coding and data entry of operating expenses, select payments due and effe...Show more

Remote Godot Game Engine expert

Micro1Claremont, California, US
Remote
Full-time

AI labs train foundational models and enterprises build AI agents.We provide frontier evaluations and reinforcement learning environments used to improve LLM capabilities, as well as contextual eva...Show more

 • Promoted

Remote Healthcare Compliance & Care Coordination Expert - AI Trainer ($70-$95 per hour)

MercorChino, California, US
Remote
Part-time

What you'll do** Mercor is partnering with leading AI labs to advance frontier agent evaluations in healthcare compliance and care coordination.As a Compliance & Care Coordination Expert, you'll bu...Show more

 • New!

Accounts Payable Clerk

Nexgrill Industries IncChino, CA, US
Full-time
Quick Apply

We are seeking an Accounts Payable Clerk to support full-cycle AP processing, including invoice entry, 3-way matching, GL coding, and payment processing.This role also manages vendor inquiries, cre...Show more

Claims Examiner - Xcelys Remote, Temporary

NTT DATAOntario, CA, United States
Full-time

Senior Claims Examiner (Xcelys System).NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us.If you want to be part of an inclusive, adaptable, and fo...Show more

SUPERVISOR, CAPITATION CLAIMS

Pomona Valley Hospital Medical CenterPOMONA, California, United States, 91767
Full-time

Under the guidance of the Director of Managed Care, the Claims Supervisor is responsible for managing the daily operations, performance, and regulatory compliance of the Hospital’s Capitation Claim...Show more

Remote Revenue Cycle Expert - AI Trainer ($45-$65 per hour)

MercorEastvale, California, US
Remote
Part-time

What you'll do** Mercor is partnering with leading AI labs to advance frontier agent evaluations in healthcare revenue cycle.As a Revenue Cycle Expert, you'll build long-horizon revenue cycle tasks...Show more

 • New!

Remote Litigation & Disputes Expert - AI Trainer ($110-$150 per hour)

MercorRancho Cucamonga, California, US
Remote
Part-time

What you'll do** Mercor is partnering with leading AI labs to advance frontier agent evaluations in litigation.As a Litigation & Disputes Expert, you'll build long-horizon litigation tasks that mir...Show more

 • New!

Part-Time After-School Teacher / Instructor (1–4 hrs per week)

Concorde EducationUpland, CA, United States
Part-time
Quick Apply

Programs launch throughout the school year.Teach engaging enrichment classes that help students explore new interests and build real skills.Concorde Education partners with schools to provide high-...Show more

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Remote Software Engineering, Data Science, and Systems Design Experts - AI Trainer ($60-$100 per hour)

Remote Software Engineering, Data Science, and Systems Design Experts - AI Trainer ($60-$100 per hour)

MercorChino, California, US
11 days ago
Job type
  • Full-time
  • Part-time
  • Remote
Job description
  • Location : US-Based and Non-US-Based Type : Full-time or Part-time Contract Work
  • Fluent Language Skills Required : English Why This Role Exists Mercor partners with leading AI teams to improve the quality, usefulness, and reliability of general-purpose conversational AI systems. These systems are used across a wide range of everyday and professional scenarios, and their effectiveness depends on how clearly, accurately, and helpfully they respond to real user questions. In coding and software engineering contexts, conversational AI systems must demonstrate correct reasoning, strong problem-solving ability, and adherence to real-world engineering best practices. This project focuses on evaluating and improving how models reason about code, generate solutions, and explain technical concepts across a variety of programming tasks and complexity levels. What You’ll Do - Evaluate LLM-generated responses to coding and software engineering queries for accuracy, reasoning, clarity, and completeness - Conduct fact-checking using trusted public sources and authoritative references - Conduct accuracy testing by executing code and validating outputs using appropriate tools - Annotate model responses by identifying strengths, areas of improvement, and factual or conceptual inaccuracies - Assess code quality, readability, algorithmic soundness, and explanation quality - Ensure model responses align with expected conversational behavior and system guidelines - Apply consistent evaluation standards by following clear taxonomies, benchmarks, and detailed evaluation guidelines Who You Are - You hold a BS, MS, or PhD in Computer Science or a closely related field - You have significant (3+ years) real-world experience in software engineering or related technical roles - You are an expert in at least two relevant programming languages (e.g., Python, Java, C++, C, JavaScript, Go, Rust, Ruby, SQL, Powershell, Bash, Swift, Kotlin, R, TypeScript, HTML / CSS) - You are able to solve HackerRank or LeetCode Medium and Hard–level problems independently - You have experience contributing to well-known open-source projects, including merged pull requests - You have significant experience using LLMs while coding and understand their strengths and failure modes - You have strong attention to detail and are comfortable evaluating complex technical reasoning , identifying subtle bugs or logical flaws Nice-to-Have Specialties - Prior experience with RLHF, model evaluation, or data annotation work - Track record in competitive programming - Experience reviewing code in production environments - Familiarity with multiple programming paradigms or ecosystems - Experience explaining complex technical concepts to non-expert audiences What Success Looks Like - You identify incorrect logic, inefficiencies, edge cases, or misleading explanations in model-generated code, technical concepts, and system design discussions - Your feedback improves the correctness, robustness, and clarity of AI coding outputs - You deliver reproducible evaluation artifacts that strengthen model performance - Mercor customers trust AI systems to assist reliably with real-world coding tasks Why Join Mercor At Mercor, experienced software engineers play a direct role in shaping how AI systems reason about and generate code. This remote role allows you to apply your technical expertise to high-impact AI development work, improving systems used by developers around the world.