DESCRIPTION : Alexa International is looking for a passionate, talented, and inventive Applied Scientist to help build industry-leading technology with Large Language Models (LLMs) and multimodal systems, requiring foundational deep learning and generative models knowledge. Applied scientists will contribute to cross-team scientific efforts, collaborate with partner teams, and deliver solutions that impact Alexa's international products and services.

Key job responsibilities

A day in the life

- Analyze, understand, and model customer behavior and the customer experience based on large-scale data.
- Build and support online & offline evaluation metrics and methodologies for multimodal personal digital assistants.
- Fine-tune/post-train LLMs using techniques like SFT, DPO, Reinforcement Learning (RLHF and RLAIF) for supporting model performance specific to a customer's location and language.
- Experiment and help set up experimentation frameworks for agile model and data analysis or A/B testing.
- Contribute to research efforts that drive innovation forward.
- Collaborate with cross-team scientists and engineers on LLM evaluation frameworks, post-training methodologies, and best practices for international speech and language systems.




- Contribute to end-to-end delivery of scientific solutions from research to production, including reusable science components and services.
- Communicate solutions clearly to peers, partners, and stakeholders.
- Actively participate in the broader internal and external scientific community through publications and community engagement.

BASIC QUALIFICATIONS :

- Experience in state-of-the-art deep learning models architecture design and deep learning training and optimization and model pruning
- Experience in building speech recognition, machine translation and natural language processing systems (e.g., commercial speech products or government speech projects)
- Experience programming or scripting language like Python, Java, C or C++
- Experience in solving business problems through machine learning, data mining and statistical algorithms
- Master's degree in computer science, machine learning, engineering, or related fields OR Bachelor's degree with 2+ years of experience

PREFERRED QUALIFICATIONS :

- Have publications at top-tier peer-reviewed conferences or journals
- Experience in designing experiments and statistical analysis of results

📌 Applied Scientist I, Alexa International (Bengaluru)
🏢 ADCI - Karnataka
📍 Bengaluru