Alignerr
Labelbox's network of experts who train and evaluate AI models, from audio and languages to STEM and coding.
Pay figures cover the 445 open jobs that publish an hourly rate in USD. They are published rates, not a guarantee of income. Last checked on October 8, 2026.
You apply on Alignerr, Labelbox's expert network: create a profile, complete an AI-led interview and skills assessment, then get matched to projects in your field.
Official site: alignerr.com. SideHustler is independent of Alignerr.
This role involves evaluating and improving AI systems trained on Arabic-language content. Arabic language experts will review AI-generated text for linguistic accuracy, cultural appropriateness, and natural phrasing, providing structured feedback to enhance how AI communicates with Arabic speakers worldwide.
Transcribe and evaluate aviation air traffic control communications audio recordings, identifying and correcting transcription errors while providing feedback on audio quality. This role is ideal for aviation professionals or transcription specialists with expertise in ATC communications and attention to detail.
This role invites atmospheric science experts with Masters or PhD credentials to develop rigorous, advanced problems in climate modeling, meteorology, and ecology that train AI systems to reason at the highest scientific level. You will design complex problem statements, evaluate AI-generated reasoning, and collaborate with AI researchers to advance scientific AI capabilities.
An audio engineering role focused on evaluating and improving AI systems trained on audio content. You will produce, mix, and master audio while reviewing AI-generated outputs and providing feedback to refine audio processing tools.
This role involves evaluating audio recordings for quality, clarity, and accuracy to support AI training. Reviewers will assess recordings for technical issues like noise and distortion, verify transcription accuracy, and provide detailed feedback using evaluation tools, working independently on a flexible schedule.
This role involves reviewing and correcting machine-generated audio transcripts in Brazilian Portuguese to ensure accuracy, proper formatting, and precise timestamps. The position is ideal for detail-oriented professionals with native-level Portuguese proficiency and strong listening skills who want to contribute to AI training projects.
An audio transcription specialist corrects word-level transcripts and aligns timing boundaries to match spoken audio in a proprietary editor. The role suits professionals with experience in transcription, closed captioning, court reporting, or linguistics who excel at precision work with speech audio.
Audio Transcription Specialists convert real audio recordings into accurate written text to power speech recognition and language models. This fully remote, flexible contract role is open to anyone with strong listening skills and attention to detail, with no professional transcription background required.
This role involves designing and building server-side systems, APIs, and data pipelines for AI infrastructure. Back end developers will optimize scalable microservices and databases to support AI training and inference workloads on a remote, flexible contract basis.
This role involves designing and optimizing high-performance C backend systems and data pipelines for AI model training and evaluation. The position is ideal for experienced full-stack engineers who want to build production-grade infrastructure used by leading AI research organizations.
This role involves designing and optimizing Python-based backend systems for data annotation, validation, and AI model training infrastructure. The position requires a senior full-stack engineer to build high-performance data pipelines, asynchronous task queues, and evaluation systems used by leading AI labs.
This role involves evaluating and providing feedback on AI-generated Python code for correctness, efficiency, and security while designing complex backend algorithmic solutions. It is designed for experienced backend Python developers who want to contribute to cutting-edge AI research by helping train the next generation of AI systems to write better code.
This role involves evaluating and providing feedback on AI-generated Python code while designing complex algorithmic challenges to test AI reasoning capabilities. Senior Python developers will work remotely on flexible contracts to help advance AI systems' ability to write and understand production-level code.
This role involves evaluating and providing feedback on AI-generated Rust code to help improve AI systems' understanding of systems-level programming. You will review code for correctness, memory safety, and performance, working independently on a flexible remote contract basis.
This role involves reviewing and evaluating AI-generated Rust code to ensure correctness, memory safety, and systems-level performance. Experienced Rust engineers will assess the quality of AI outputs, design challenging problems to test AI understanding, and provide structured feedback to improve how AI models reason about systems programming.
This role involves building and optimizing high-performance backend systems and tooling in Rust to support AI data pipelines, annotation workflows, and evaluation systems. You will work on production infrastructure that powers advanced AI model training, collaborating with research and engineering teams on scalable solutions.
This role involves evaluating and improving AI systems trained on Bengali-language content by reviewing AI-generated translations and original content for accuracy, naturalness, and cultural appropriateness. Native or near-native Bengali speakers will provide linguistic feedback to shape how AI understands and communicates in Bengali across various contexts.
A fully remote contract role where PhD-level biochemists create expert-level problems, author gold-standard solutions, and audit AI-generated biochemical reasoning to train and improve scientific AI models. Ideal for biochemists passionate about scientific rigor who want to shape the accuracy of next-generation AI without requiring prior AI experience.
This role involves helping train and refine AI models on biochemistry topics by designing test problems, writing ground-truth solutions, and evaluating AI-generated scientific reasoning. The position is ideal for PhD-level biochemists who want to apply their expertise to AI development while working flexibly on a remote, hourly contract basis.
This is a contract position for biologists with PhDs to annotate and evaluate training data for AI models. The role involves labeling biology questions and concepts, mapping relationships between biological principles, reviewing AI-generated answers, and designing training datasets across biology subfields.
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FAQ
445 Alignerr jobs are open on SideHustler today. Listings are rechecked against the official postings: the latest check on this list was on October 8, 2026.
Among the 445 open roles that publish an hourly rate in USD, pay runs from $10 to $400 per hour, with a median of $63. These are the rates the platforms publish, not a guarantee of income or hours.
The most requested areas of expertise on these listings are AI Evaluation, Data Annotation, Multilingual Expertise, Content Annotation, Code Quality & Review. Each listing states its own requirements.
You apply on Alignerr, Labelbox's expert network: create a profile, complete an AI-led interview and skills assessment, then get matched to projects in your field.
Alignerr does not publish the eligible countries on its postings, so the listings do not show any. Check the official posting before you apply.
No. SideHustler is independent of Alignerr. We list its public postings and send you to the official one to apply. When an Apply link is a referral link, it is marked as such.
Apply now opens the official posting on the platform, where you complete the application. You need no account on SideHustler. To see which roles fit your background first, add your resume and every open job is scored against your profile.