
Recruitment • HR Tech • B2B
HireIO, Inc. is a top workforce solutions provider and recruitment consultancy based in San Jose, California, specializing in the tech sector. The company connects emerging tech giants with talented professionals, offering recruitment services that influence change and foster equal opportunities within the tech community. HireIO focuses on sectors such as FinTech, SaaS, healthcare, biotech, blockchain, and AI, with a strong emphasis on building their candidate network and maintaining ethical standards. With expert sector knowledge and decades of experience, HireIO prides itself on its ability to find and place the best candidates for tech startups throughout the United States and Canada.
August 20

Recruitment • HR Tech • B2B
HireIO, Inc. is a top workforce solutions provider and recruitment consultancy based in San Jose, California, specializing in the tech sector. The company connects emerging tech giants with talented professionals, offering recruitment services that influence change and foster equal opportunities within the tech community. HireIO focuses on sectors such as FinTech, SaaS, healthcare, biotech, blockchain, and AI, with a strong emphasis on building their candidate network and maintaining ethical standards. With expert sector knowledge and decades of experience, HireIO prides itself on its ability to find and place the best candidates for tech startups throughout the United States and Canada.
• The Role: We are seeking recent Mathematics PhDs or early-career researchers to contribute to groundbreaking AI projects. You will design and develop challenging mathematical problems that train state-of-the-art large language models. This is a unique opportunity to apply your expertise to real-world AI applications while growing your research impact. • What You’ll Do: Problem Design: Develop original, high-quality mathematical problems testing reasoning, creativity, and problem-solving. • Solution Verification: Ensure every problem and solution is accurate, rigorous, and conceptually deep. • Difficulty Scaling: Refine problems across multiple complexity levels to optimize learning and engagement. • Applied Scenarios: Craft problems reflecting authentic applications, connecting theory with practice. • Quality Assurance: Review AI-generated outputs for accuracy, clarity, and adherence to mathematical principles.
• PhD in Applied or Pure Mathematics from a top-tier university (recent graduates welcome). • Strong analytical, logical reasoning, and problem-creation skills. • High attention to detail and ability to work independently. • Excellent written and verbal communication in English. • Comfortable working asynchronously in a fully remote environment. • Have experience creating competition-level or advanced mathematical problems. • Have exposure to AI/ML research or data annotation projects.
• Immediate impact: Shape AI systems from day one with your mathematical expertise. • Global community: Collaborate with top-tier PhDs and domain experts worldwide. • Flexible schedule: Work remotely, 10–20 hrs/week (up to 40 hrs), on your own timetable. • Professional growth: Gain hands-on experience at the frontier of AI while building your research profile. • Empowerment over automation: Your skills aren’t being replaced — they are defining the next generation of AI.
Apply NowAugust 20
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🇺🇸 United States – Remote
💵 $8 - $65 / hour
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🟡 Mid-level
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Indonesian voice acting specialist for AI training; record and evaluate Indonesian speech, provide feedback to improve AI voice models.
🇺🇸 United States – Remote
💵 $8 - $65 / hour
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🟡 Mid-level
🟠 Senior
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