AI Research Engineer (Agentic Reinforcement Learning)

Jamefy; Brasil; Remote; BRL 180,000 - 300,000; Full time

Benefits offered by this job

Fully Remote Work

International Collaboration

Cutting-Edge AI Research

Scientific Recognition

Professional Growth

Global Team

Job summary

Jobgether, on behalf of a partner company, seeks an AI Research Engineer in Brazil focused on Agentic Reinforcement Learning to drive research and innovative multimodal systems. The role emphasizes scalable training, reward optimization, and cutting-edge RL techniques across text, image, audio, and other modalities.

You will explore diffusion-based generative methods, autoregressive architectures, and unified multimodal frameworks to push performance, generalization, and reliability in dynamic

Qualifications

• Master's degree in Computer Science or a related discipline; PhD preferred.
• Strong track record of AI research with publications at top conferences.
• Experience with large-scale reinforcement learning in multimodal/vision-centric systems.

Responsibilities

• Research and develop reinforcement learning algorithms for multimodal models, including diffusion-based approaches for image generation and autoregressive architectures.
• Design scalable reinforcement learning infrastructure to support distributed training across complex multimodal systems.
• Develop and optimize reward modeling strategies to improve stability and align behavior with goals.
• Create and maintain multimodal simulation environments and training datasets for robust benchmarking.
• Design rigorous evaluation protocols to measure progress against baselines and reproducibility.
• Analyze policy performance across modalities to identify bottlenecks and improve cross-modal alignment.
• Investigate emerging RL paradigms to enhance learning efficiency and adaptation.
• Publish and present findings at leading conferences such as ICML, NeurIPS, ICLR, CVPR, ICCV, ECCV.

Skills

Reinforcement learning

Multimodal learning

PyTorch

Distributed training

Model evaluation

Research publications

Education

Master's degree in Computer Science or related field

PhD preferred

Tools

Python

CUDA

Job description

AI Research Engineer (Agentic Reinforcement Learning)

Jobgether

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an AI Research Engineer (Agentic Reinforcement Learning) based in Brazil.As an AI Research Engineer specializing in Agentic Reinforcement Learning, you will drive research and innovation in next\-generation intelligent systems.

You will develop advanced reinforcement learning techniques that improve decision\-making, adaptive behavior, and performance across multimodal AI architectures.

Working with text, images, audio, and other data modalities, you will help build models capable of solving complex, real\-world challenges.

Your work will involve designing scalable training infrastructure, optimizing reward mechanisms, and improving the reliability of autonomous AI agents.

You will explore cutting\-edge approaches involving diffusion\-based generative models, autoregressive architectures, and unified multimodal frameworks.

Through rigorous experimentation and benchmarking, you will push the boundaries of model performance, efficiency, and generalization.

This fully remote opportunity offers the chance to contribute to impactful AI research within a fast\-moving, globally distributed technology environment.

Accountabilities

Responsibilities

In this role, you will conduct advanced research and develop scalable reinforcement learning systems for multimodal AI applications. Your main responsibilities will include:

• Research and develop reinforcement learning algorithms for multimodal models, including diffusion-based approaches for image generation, autoregressive models for multimodal understanding, and unified architectures integrating multiple modalities.
• Design and implement scalable reinforcement learning infrastructure supporting distributed training across complex multimodal systems.
• Develop and optimize reward modeling strategies to improve training stability, align model behavior with desired outcomes, and prevent reward hacking and related failure modes.
• Create, curate, and maintain multimodal simulation environments and training datasets to support robust model development, evaluation, and benchmarking.
• Design and implement rigorous evaluation protocols to measure model performance, monitor progress against established baselines, and validate research improvements.
• Analyze and optimize policy performance across different modalities by identifying bottlenecks in training, credit assignment, reward optimization, and cross\-modal alignment.
• Investigate emerging reinforcement learning paradigms that enable AI agents to learn more effectively from environmental feedback.
• Improve model exploration, decision\-making, and adaptive behavior to achieve state\-of\-the\-art performance in dynamic, real\-world environments.
• Conduct large\-scale experiments and translate empirical findings into practical algorithmic improvements.
• Publish and present research findings at leading international conferences, including ICML, NeurIPS, ICLR, CVPR, ICCV, and ECCV.

Requirements

• Master's degree in Computer Science or a related discipline. A PhD in Machine Learning, Natural Language Processing, Computer Vision, or a closely related field is preferred.
• Strong track record of AI research, including publications in leading international conferences.
• Demonstrated experience conducting large\-scale reinforcement learning experiments in multimodal and vision\-centric systems, including online reinforcement learning environments.
• Proven ability to improve domain\-specific decision\-making and achieve measurable gains in policy performance.
• Deep understanding of reinforcement learning algorithms and optimization techniques applied to vision and multimodal learning.
• Strong knowledge of policy stability, exploration strategies, sample efficiency, and optimization in complex, high\-dimensional environments involving images, video, and other modalities.
• Advanced proficiency in PyTorch and modern deep learning frameworks for computer vision and multimodal AI.
• Hands\-on experience building end- to- end reinforcement learning pipelines covering simulation, model training, evaluation, and production deployment.
• Ability to address fundamental reinforcement learning challenges, including sample inefficiency, exploration\-exploitation trade\-offs, and training instability.
• Experience designing robust evaluation frameworks and using empirical research to continuously improve algorithmic performance.
• Established research publication record at top\-tier conferences such as ICML, NeurIPS, ICLR, CVPR, ICCV, or ECCV.
• Strong analytical thinking, scientific problem\-solving skills, and the ability to translate advanced research into practical AI solutions.

Benefits

• Fully Remote Work: Work remotely from anywhere in the world, with a globally distributed team.
• International Collaboration: Collaborate with talented researchers, engineers, and technology professionals across different countries and disciplines.
• Cutting-Edge AI Research: Work on advanced reinforcement learning, multimodal architectures, generative AI, and next\-generation intelligent systems.
• Research and Innovation: Explore new methodologies and contribute to state- of-the-art developments in artificial intelligence.
• Scientific Recognition: Opportunities to publish research and present findings at leading international AI and machine learning conferences.
• Professional Growth: Develop expertise in emerging AI technologies while contributing to challenging, high-impact research initiatives.
• Global Technology Environment: Be part of an ambitious, fast-growing organization working across AI, digital finance, peer-to-peer technology, and other innovative fields.

How Jobgether Works

We use an AI‑powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top‑fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

Why Apply Through Jobgether?

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We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.