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Data Annotation Engineer Jobs in Hackensack, NJ (NOW HIRING)

Alignerr

Senior Machine Learning Expert

Manhattan, NY · Remote

$95K - $118K/yr

Prior experience with data annotation, data quality assurance, or AI evaluation systems * Top-tier ... feature engineering * Background in MLOps, model interpretability, or AI safety research

Snorkel AI

Head of Forward Deployed Engineering

New York, NY · On-site +1

$220K - $330K/yr

We work with some of the world's largest organizations to empower scientists, engineers, financial ... Bonus: experience working with data annotation workflows or internal tooling for data delivery orgs ...

Instagram

Product Content Engineer

New York, NY · On-site +1

$162K/yr

Product Content Engineering is a horizontal function supporting initiatives across Meta's family of ... frameworks, annotation guidelines, or quality rubrics for AI/ML systems * Demonstrated data ...

Alice

Freelancer - GenAI Experts

New York, NY · On-site +1

Support data annotation, curation, and quality control processes * Summarize findings into ... Prior work in model evaluation, prompt engineering, or safety analysis * Regional expertise or ...

CreatorIQ, Inc

ML Engineer

New York, NY · On-site

$132K - $165K/yr

Machine Learning Engineer, Applied AI As a MLE you'll join our Product Innovations team and work ... Partner with Data Science on annotation workflows, PII scrubbing, and ground-truth pipelines

Zenlaw

Data Scientist (Remote)

New York, NY · On-site +1

Run data analysis on our dataset to design potential rules for annotation. * Improve the architecture of data modeling and data tooling in partnership with Engineering and cross-functional business ...

Forhyre

Prompt Engineers

New York, NY

As a Prompt Engineer, you will be a key member of our AI development team, responsible for ... Solid knowledge of data collection, preprocessing, and annotation for prompt development.

Forhyre

Prompt Engineers

New York, NY · On-site

As a Prompt Engineer, you will be a key member of our AI development team, responsible for ... Solid knowledge of data collection, preprocessing, and annotation for prompt development.

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All JobsData Annotation Engineer JobsData Annotation Engineer Jobs in Hackensack, NJ

Data Annotation Engineer information

See Hackensack, NJ salary details

$56.2K

$160.8K

$214.9K

How much do data annotation engineer jobs pay per year?

As of Jun 9, 2026, the average yearly pay for data annotation engineer in Hackensack, NJ is $160,828.00, according to ZipRecruiter salary data. Most workers in this role earn between $91,600.00 and $213,800.00 per year, depending on experience, location, and employer.

What are the main challenges faced by Data Annotation Engineers in their daily work?

One of the main challenges Data Annotation Engineers face is ensuring consistent accuracy and quality in labeling large and often complex datasets. Attention to detail is critical, as even small errors can significantly affect machine learning model performance. Additionally, engineers must frequently adapt to evolving annotation guidelines and emerging data types, which requires ongoing learning and flexibility. Collaboration with data scientists and project managers is common to clarify requirements and resolve ambiguities, making strong communication skills essential for success.

What are the key skills and qualifications needed to thrive in the Data Annotation Engineer position, and why are they important?

To thrive as a Data Annotation Engineer, you need a strong background in data analysis, attention to detail, and familiarity with annotation processes, often supported by a degree in computer science or a related field. Proficiency with annotation tools like Labelbox, CVAT, or VIA, and understanding of data formats used in machine learning, is commonly required. Excellent communication, collaboration, and organizational skills help you effectively manage projects and cooperate with cross-functional teams. These abilities are crucial for delivering high-quality labeled data, which directly impacts the performance of AI and machine learning models.

What is a Data Annotation Engineer job?

A Data Annotation Engineer is responsible for labeling and annotating data—such as text, images, audio, or video—to train machine learning models. They ensure that data is accurately categorized and structured to improve model performance. This role often involves using specialized annotation tools, following detailed guidelines, and working closely with data scientists and AI teams. Data Annotation Engineers play a crucial role in the development of AI applications by providing high-quality labeled datasets for supervised learning.

What are popular job titles related to Data Annotation Engineer jobs in Hackensack, NJ? For Data Annotation Engineer jobs in Hackensack, NJ, the most frequently searched job titles are:
What job categories do people searching Data Annotation Engineer jobs in Hackensack, NJ look for? The top searched job categories for Data Annotation Engineer jobs in Hackensack, NJ are:
What cities near Hackensack, NJ are hiring for Data Annotation Engineer jobs? Cities near Hackensack, NJ with the most Data Annotation Engineer job openings:
Data Annotation Engineer jobs near you

Remote | Chinese STEM Translation Quality Expert -- $80-$100/hour

24-MAG

New York, NY • On-site, Remote

$80 - $100/hr

Part-time, Contractor

Posted 13 days ago

Job description

We are sharing a specialised part-time consulting opportunity for professionals fluent in Mandarin Chinese and English, with strong STEM knowledge, technical translation judgment, linguistic review skills, and structured quality evaluation experience.

This role supports current and upcoming remote consulting opportunities focused on structured STEM translation review, Chinese-language quality assessment, technical accuracy evaluation, reference response writing, and high-quality project execution. Selected professionals will apply their language and STEM expertise to review translated science, technology, engineering, and mathematics content, evaluate translation quality, and support accurate, natural, technically sound Chinese-language outputs.

Key Responsibilities

Professionals in this role may contribute to:

STEM Translation Review & Quality Assessment

  • Review Chinese-language translations of STEM questions, answers, explanations, and technical content
  • Evaluate translations for technical accuracy, linguistic quality, clarity, fluency, and natural Mandarin usage
  • Compare translated responses and determine which version is stronger based on meaning, precision, terminology, and readability
  • Identify mistranslations, terminology issues, awkward phrasing, missing meaning, and technical inaccuracies

Reference Response & Technical Language Support

  • Write reference responses in Chinese when needed, ensuring they are accurate, clear, and technically sound
  • Apply STEM knowledge to preserve scientific, mathematical, engineering, or technology-related meaning across languages
  • Support review of technical explanations involving formulas, concepts, problem-solving steps, scientific reasoning, or domain-specific terminology
  • Prepare concise written judgments explaining translation quality and technical correctness

Structured Evaluation & Review Workflow

  • Follow detailed task instructions and apply review criteria consistently
  • Evaluate both language quality and subject-matter accuracy in each translated response
  • Support flexible, task-based review workflows involving Mandarin-language STEM content
  • Maintain accuracy, consistency, and professional judgment across submitted work

Ideal Profile

Strong candidates may have:

  • Native or near-native fluency in Mandarin Chinese
  • Professional working proficiency in English
  • Strong STEM background through academic study, professional work, research, teaching, tutoring, or technical review experience
  • Ability to evaluate both technical correctness and natural Chinese-language expression
  • Strong attention to detail and ability to make clear quality judgments
  • Clear written communication skills and comfort explaining evaluation decisions

Educational Background

  • A degree or professional background in science, engineering, mathematics, technology, computer science, statistics, physics, chemistry, biology, or a related STEM field is helpful
  • Equivalent practical experience in STEM translation, technical writing, tutoring, research, annotation, localization, or technical review is also highly relevant

Nice to Have

  • Experience with translation review, localization, linguistic QA, technical editing, annotation, or language evaluation
  • Familiarity with STEM terminology in both English and Mandarin Chinese
  • Experience writing or reviewing technical explanations, educational content, scientific answers, or math/science problem solutions
  • Background in AI evaluation, data annotation, language model review, or applied research workflows
  • Strong comfort working independently on detailed, guideline-based review tasks

Why This Opportunity

  • Apply Mandarin Chinese fluency and STEM expertise to structured remote project work
  • Contribute to high-quality translation review, technical accuracy assessment, and Chinese-language evaluation workflows
  • Work on flexible assignments aligned with your language and technical background
  • Use your linguistic and scientific judgment in a focused, detail-oriented review environment
  • Remote structure with competitive hourly compensation

Contract Details

  • Independent contractor role
  • Fully remote with flexible scheduling
  • Task-based commitment depending on project availability
  • Typical tasks may take approximately 1.25 hours depending on scope
  • Competitive rates between $80–$100 per hour depending on expertise
  • Weekly payments via Stripe or Wise
  • Projects may be extended, shortened, or adjusted depending on scope and performance
  • Work will not involve access to confidential or proprietary information from any employer, client, or institution

About the Platform

This opportunity is available through 24-MAG LLC. We connect experienced professionals with remote consulting opportunities across technical, evaluation, and project-based workstreams.

By submitting this application, you acknowledge that your information may be processed by 24-MAG LLC for recruitment and opportunity matching in accordance with our Privacy Policy: https://www.24-mag.com/privacy-policy.