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LatamCent is a staffing and recruiting firm that helps companies in the United States build remote and nearshore teams with talent from Latin America. Its recruiting focus spans sales, marketing, and IT, supporting organizations through the process of identifying, hiring, and retaining skilled professionals. For job seekers, LatamCent offers access to recruiting opportunities connected to companies expanding their distributed teams across the region.
Senior AI Researcher, Hybrid — Brazil
Lead applied AI research for a B2B SaaS company by developing frontier agents, evaluation systems, and enterprise software prototypes. Turn research findings into product capabilities used by customers.
Brazil$6,650 – $7,500 / month
HybridContractSeniorEnglish RequiredAI Research ScientistMachine Learning EngineerDescription
- Assess promising models, papers, and techniques, then validate their value with data.
- Develop agents using frontier APIs to navigate unfamiliar software and complete practical business tasks.
- Design evaluation frameworks and benchmarks that track improvements in agent performance.
- Investigate agent failures, determine their underlying causes, and implement corrective solutions.
- Deliver frontier prototypes and demonstrations for leadership and prospective customers.
- Transfer validated prototypes to the engineering team for further development.
- Share research outcomes through blog posts, presentations, and short-form videos.
- Establish an independent research program and create trusted benchmarks within the first 90 days.
- Run experiments that influence the product roadmap during the first year.
Requirements
- At least five years of startup experience owning technical outcomes; three years may be considered for exceptional candidates.
- Practical experience building multi-step agents with frontier LLMs, including tool use and orchestration.
- Demonstrated delivery of AI products or systems that reached real users.
- Strong experimental methodology, including meaningful baselines and evaluation sets.
- Ability to separate meaningful signals from noise.
- Ability to work independently, maintain momentum, and surface blockers early.
- Regular use of AI tools, with the ability to explain which tools are used and why.
- Strong spoken and written English for presentations, travel, and technical writing.
- Willingness to work as an independent contractor paid in USD.
- Proficiency in Python.
- Experience with frontier model APIs such as Anthropic, OpenAI, or Gemini.
- Preferred: experience at a leading AI lab or training agents in real-world environments.
- Preferred: experience with reinforcement learning, post-training, or fine-tuning.
- Preferred: published research, benchmarks, open-source contributions, or technical writing.
- Preferred: an active AI community presence through posts, talks, or programs such as GDE.
Benefits
- Equity is included in the compensation package.
- Relocation support is available.
- Learning allowance provided.
- Dedicated budget for experimenting with the latest AI models and tools.
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