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Web developer Jobs in Temecula, CA

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Web developer • temecula ca

Last updated: 12 hours ago

Remote Frontend Engineer - AI Trainer ($90-$90 per hour)

MercorTemecula, California, US
$90.00 hourly
Remote
Full-time

About the work** We're building a high-quality dataset of human preference judgments on AI-generated frontend code.Each task hands you a reference web page — crawled from the real internet, deliver... Show more

Remote Cybersecurity Research Expert – Offensive Security & Vulnerability Research - AI Trainer

MercorMurrieta, California, US
Remote
Part-time

We're looking for highly accomplished **Cybersecurity Research Experts** to help evaluate cutting-edge AI systems in advanced security reasoning, vulnerability analysis, exploit development, and se... Show more

Senior Software Engineer

ProsumTemecula, CA, US
$150,000.00 yearly
Full-time
Quick Apply

Cryptography & Systems Development.Senior Software Engineer / Technical Leader (Individual Contributor).C/C++, Cryptography, Python, Linux/POSIX, Systems Programming.Secure software, cryptograp... Show more

Remote Agency Brand Design Expert - AI Trainer ($80-$150 per hour)

MercorTemecula, California, US
$80.00 hourly
Remote
Full-time

Role Overview** Mercor is partnering with a leading AI research organization to engage experienced brand designers for a project focused on evaluating how well AI systems perform real-world brand a... Show more

Residential Property Inspector - Temecula, CA

CrimsonBluTemecula, California, United States
Full-time

CrimsonBlu Residential Property Inspector.Residential Property Inspector – Temecula, CA – 1099 Independent Contractor.Utilize your own associates if you have them, get paid per inspection.CrimsonBl... Show more

Office Administration Work - Support Assistant

HRS Talent SolutionsMurrieta, California, United States
$28.00–$36.00 hourly
Remote
Full-time +1
Quick Apply

Office Administration Work - Support Assistant - Remote.We are currently seeking organized and dependable individuals for an entry-level Office Administration Support Assistant opportunity.This rol... Show more

Remote Adult Inpatient Nurses (RN) - AI Trainer ($55-$65 per hour)

MercorMurrieta, California, US
$55.00 hourly
Remote
Full-time

We're hiring experienced Adult Inpatient Nurses (RNs) to help train and evaluate AI systems used in clinical and healthcare settings.This role is ideal for nurses who want to apply their frontline ... Show more

Remote Sales Engineering Expert - AI Trainer ($100-$150 per hour)

MercorTemecula, California, US
Remote
Full-time

Role Overview** Mercor is partnering with a leading AI research organization to engage experienced sales engineers for a project focused on evaluating how well AI systems perform real-world technic... Show more

Remote Applied Computer Science Benchmark Specialist - AI Trainer ($66-$84 per hour)

MercorMurrieta, California, US
$66.00 hourly
Remote
Full-time

Role Overview** We are seeking expert computer scientists to author and review high-quality academic assessment content for an AI research initiative.You will write and verify rigorous multiple-cho... Show more

Full-Time Assistant Manager

Hot TopicTemecula, CA, United States
$20.65–$24.80 hourly
Full-time

At BoxLunch, we're committed using our love of pop culture to do something amazing: eliminate hunger.With every $10 spent, we donate a meal to Feeding America that directly benefits the communities... Show more

Fleet Maintenance Supervisor

PenskeTemecula, CA, US
$83,500.00–$106,850.00 yearly
Full-time

As a Penske Maintenance Supervisor you will use your excellent communication, organization, and multitasking skills to engage your diesel technicians, maintain good morale among your team, and keep... Show more

 • New!

Community Association Manager / CAM (MCA72426)

RealManageMurrieta, CA, United States
Full-time

Community Association Manager / CAM.Imagine being part of a fast-growing, tech-forward HOA management company where your career can truly take offand where your success is celebrated every step of ... Show more

Remote Software Engineer - AI Trainer ($40-$50 per hour)

MercorMurrieta, California, US
$40.00–$50.00 hourly
Remote
Full-time

Role Overview We’re hiring Software Engineers to build and ship apps for Mercor’s RL Studio platform.The role involves developing MCP servers and sometimes BUAs, integrating real software into sand... Show more

Sales Arborist Tree Care

BrightView LandscapesMurrieta, CA, US
$70,304.00 yearly
Full-time

The Best Teams are Created and Maintained Here.The Tree Care Service (TCS) Business Developer (BD) manages the tree care services pipeline from prospecting to closing.The TCS Business Developer col... Show more

Lead Training Nav

MetreaTemecula, CA, United States
Full-time

Navigator Training Program Manager.Metrea delivers effects-as-a-service to national security partners across five domains and more than a dozen mission areasincluding airborne ISR, electronic warfa... Show more

Behavior Technician

Autism Spectrum Therapies (AST)Temecula, CA, United States
$20.00 hourly
Full-time +1

Make a real impactand get rewarded for it.No prior experience requiredpaid training provided.As a Behavior Technician, you'll work one-on-one with children with autism, using ABA therapy and play t... Show more

Inside Sales Representative

Glass DoctorMurrieta, CA, US
$18.00 hourly
Full-time

Do you love meeting new people? Do you focus on customer service? Have you’ve been doing that for more than a year? Then keep reading….How about growing your skills and income at a company where yo... Show more

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Remote Frontend Engineer - AI Trainer ($90-$90 per hour)

Remote Frontend Engineer - AI Trainer ($90-$90 per hour)

MercorTemecula, California, US
11 days ago
Salary
$90.00 hourly
Job type
  • Full-time
  • Remote
Job description
  • About the work We're building a high-quality dataset of human preference judgments on AI-generated frontend code. Each task hands you a reference web page — crawled from the real internet, delivered as a full zipped site tree plus screenshots of its default view and, on some pages, additional states reached by hovering, clicking, or scrolling. Alongside it come two model attempts, A and B, each a zipped self-contained site tree. The models only ever saw the screenshots; they never had the source. You download all three, run them locally, view each at a 1920×1080 viewport, interact with them to reach every required state, then open the source of both attempts and grade them against each other — on visual fidelity per state, and on how the code is actually constructed. Structure and responsiveness are explicitly part of the rubric, not just the render. This is evaluation work, not authoring. The defining skill is not that you can build a page — it's that you can open someone else's page and tell how it was built and where it cheats. Please read before applying - Each unit takes roughly 2–3 hours and is timed. This is not microtask work; if you can only offer scattered 15-minute windows, you will not be able to finish a unit. - You need a real local development environment. A tablet, a Chromebook, or a locked-down work machine that cannot run a local static server will not work for this project. - You need at least one completed Mercor engagement, delivered in full. We are not onboarding net-new experts to this project. What you'll do - Render a reference page and two candidate replications at 1920×1080 and judge which is the closer reproduction, state by state. - Diff visual fidelity in detail : box model and spacing, typography (family, size, weight, line-height, letter-spacing), color and border treatment, image and asset handling, z-order and overflow. - Read the source of both attempts and grade construction quality — distinguishing a replication that is genuinely correct from one that merely looks correct at one viewport. Hardcoded pixel offsets, absolute positioning standing in for real layout, inline style soup, a single undifferentiated div tree, or a screenshot pasted in as an `` instead of a rebuilt section. - Test responsiveness : a nav bar that looks right at 1920px but collapses at 1400px is a defect, and you should be able to say precisely why. - Write a specific, evidence-cited justification for every preference. We need "B nests the article body in a single absolutely-positioned div, so the text overlaps the footer below 1600px, while A uses normal document flow" — not "A looks closer." - Use the "this task is broken" escape hatch with judgment : distinguish a task that genuinely cannot be completed from the screenshots provided from one that is merely hard. Over-flagging and under-flagging are both failure modes. You're a fit if you have - 3–8 years of professional web development experience, shipping web interfaces for a living, primarily in frontend or full-stack work. - Fluency across web eras. The reference pages are real crawled sites — one is a small charter-fishing business built in the table-and-image-map tradition, another a corporate press-release page with stacked navigation rows and social share widgets. If your entire career happened inside a modern component framework and you have never authored raw CSS or seen a `` used for layout, you will misjudge many of these pages. - Command of hand-written HTML and CSS : semantic markup, flexbox, grid, media queries, and legacy float- and table-based layouts you can read and reason about. You should be able to look at a rendered layout and predict what's holding it together before opening DevTools. - Browser DevTools as muscle memory — setting an exact viewport, walking the element tree, checking computed styles, watching what a hover handler mutates. - Command-line comfort : unzipping an archive, standing up a static local server because the relative asset paths demand it, and untangling a broken image reference rather than giving up and grading from the screenshot. - Enough JavaScript to read a page's scripts and understand what they do to the DOM, even if you don't write JS daily. - Professional written English. Every task ends in a free-text justification, and a rating without a specific rationale is worth very little. Equipment - A desktop or laptop that displays a 1920×1080 viewport. - Administrator rights on your own machine, so you can install and run a local server. Nice to have - Prior RLHF, preference-labeling, model-evaluation, or structured code-review work — the strongest single signal. Rubric-driven comparison at volume needs almost no ramp here. - Pixel-perfect design-to-code experience : agency work, design systems, template production. Anyone who has had a designer reject a build over four pixels has exactly the fidelity eye this needs. - Accessibility expertise (ARIA, semantic landmarks, heading hierarchy) — you'll notice immediately when an attempt renders a heading as a styled ``. - Familiarity with how LLMs fail at code generation. - Web scraping, archiving, or DOM-parsing background — comfort with messy crawled site trees. - More than one completed Mercor project, and availability in contiguous multi-hour blocks. Note : this seat is for practicing web developers. Backend-only, ML / data-science-only, mobile-native-only, and DevOps-only engineers do not have the UI instincts this requires, however strong they are otherwise. Designers who do not code cannot grade the source axes at all. Framework-only engineers who have never authored CSS outside a component library will struggle with the legacy reference pages.