Chemistry Expert
Posted 2 days ago
You'll complete your application on Rex's career site.
About the Role
We are looking for expert chemists to help develop and assess sophisticated AI models centered on intricate chemical reasoning. As a subject matter authority, you will be instrumental in confirming that these systems maintain top-tier scientific precision and logical integrity. Your duties include designing difficult chemistry problems to push model capabilities and carefully checking AI-produced content to confirm its scientific accuracy. By contributing, you will improve how artificial intelligence manages and comprehends scientific data, guaranteeing that the information produced is reliable and logically valid. In addition to creating assessment materials, you will perform deep evaluations by examining data interpretations, reactions, and responses generated by both machines and other subject experts. Success in this role demands an advanced grasp of chemical concepts to track analytical mistakes and articulate proper methodologies. You are expected to uphold strict quality benchmarks by joining calibration meetings and utilizing systematic feedback to ensure all output meets professional scientific standards in a remote work setting.
Requirements
- Possess a PhD in chemistry or an equivalent discipline, or be currently enrolled in a doctoral program or serving in a postdoctoral capacity.
- If you do not hold a PhD, a Master's degree plus a minimum of four years of pertinent professional background will be accepted.
- Demonstrate robust knowledge in primary areas such as physical, inorganic, organic, computational, and analytical chemistry.
- Show proficiency in written English to effectively explain reasoning and draft structured evaluations.
- Maintain high attention to detail, reliability, and the capacity for autonomous work to hit project milestones.
- Preference is given to those with a history of scientific publishing, curriculum design, or peer-review work, as well as those with previous exposure to data annotation or machine learning model training.
Responsibilities
- Develop complex chemistry inquiries and detailed model answers that provide clear rationales for reaction pathways, experiment planning, and data analysis.
- Dedicate a substantial portion of your work to verifying the scientific accuracy and logical coherence of outputs from AI models and other specialists.
- Pinpoint flaws in algorithmic reasoning, propose valid alternative methodologies, and submit organized written commentary according to defined criteria.
- Attend and engage in mandatory review and calibration meetings to maintain uniform quality levels across the project.
- Follow rigid safety guidelines by never producing content concerning illegal drugs or prohibited weapon creation, and promptly notify the team about any hazardous AI outputs.
Benefits & Perks
- Earnings for this position range from $50 to $150 USD per hour, determined by your location, providing fair pay for your niche knowledge within a flexible, work-from-home structure.
Note: This listing is summarized and paraphrased by WorkNow from a publicly posted role. For the original wording and full details, please refer to the employer's official posting.
Similar Jobs

Senior Shopify Plus Developer
Hunt St
We are looking for a Senior Shopify Plus Developer to work remotely from the Philippines. The position centers on advanced storefront development, theme tailoring, and sophisticated integrations, with a commitment to maintaining rigorous technical excellence and meeting project requirements. You will handle diverse client demands, ranging from ongoing operational maintenance and retainer engagements to comprehensive project deployments. You will serve as a primary technical authority, guiding projects through the full lifecycle from early estimation to final launch validation. Your role involves generating reliable projections, addressing technical issues, and ensuring tasks align with established budgets and scopes. Success requires consistent communication with internal teams and leads to manage project hurdles and risks. This role suits an expert developer comfortable in a decentralized agency setting. You are encouraged to use advanced AI development tools as part of our forward-thinking strategy and contribute to internal R&D initiatives. The position blends deep technical execution with project oversight, demanding high-quality coding standards and transparent collaboration with clients and management.

Freelance Website Developer, Graphic Designer
Pramira
We are looking for a multi-talented freelance Web Developer and Graphic Designer to work remotely. This position suits a creative expert who can integrate technical web work with superior visual design. Your main tasks include managing our WordPress presence to keep the site fast, secure, and attractive, while also creating various marketing materials. You will assist multiple departments by delivering custom design solutions that match our standards in the telecommunications and engineering sectors. This role provides great flexibility, as you can organize your own hours within a freelance structure. You will partner with our team to run marketing initiatives, keep branding consistent across all channels, and complete various digital and print production assignments. We need someone who can work autonomously, communicate effectively, and document their hours, making this a great fit for a self-driven person interested in varied project work.

Senior Art Director
Construct Digital
This agency focuses on building data-backed brand stories that produce tangible commercial success. Through a mix of artistic flair and sophisticated technical solutions, the firm drives growth in sales, lead acquisition, and ROI. The service offering includes data analysis, UX design, content marketing, and modern AI integration to optimize engagement and performance. As a Senior Art Director, you will work alongside creative technologists, planners, and strategists to deliver impactful solutions for clients throughout the Asia-Pacific territory. This pivotal position requires a blend of aesthetic leadership, hands-on production, and strategic guidance within an environment that promotes experimentation and continuous workflow improvement.