Senior Data Scientist - Llm Platform (Artificial Intelligence/Ai)

Gotogroup; Jakarta Pusat; On-site; IDR 400,000,000 - 900,000,000; Full time

Job summary

GoTo Group is building a multilingual Large Language Model tailored for Bahasa Indonesia and regional languages. We seek a Senior Data Scientist to design and build high-quality datasets, pre-training, fine-tuning and alignment techniques, and to ship safe, reliable LLM-powered features to millions of users.

You will collaborate with product and engineering teams, drive innovation, and address real business challenges with cutting-edge AI solutions in a dynamic environment.

Qualifications

• 4+ years of experience in LLM, Deep Learning, NLP, Computer Vision, or Voice.
• Proficient in data preprocessing, model training, evaluation, and optimisation.
• Experience deploying models to production environments.
• Proficient with Python and DL frameworks (PyTorch or TensorFlow).
• Strong communication to translate business needs into analytical solutions.
• Master's or PhD in CS/DS/AI or related field.

Responsibilities

• Perform data annotation and labeling based on provided guidelines.
• Validate language accuracy, grammar, and contextual relevance.
• Review annotated datasets to identify and correct errors.
• Ensure consistency and quality across large datasets.
• Collaborate with internal teams to refine annotation processes.
• Provide feedback to improve annotation guidelines and workflows.

Skills

LLM

Deep Learning

NLP

Python

Model training

Data preprocessing

Production deployment

Communication

Technical documentation

Education

Master's or PhD in CS/DS/AI

Tools

PyTorch

TensorFlow

Alicloud

Tencent Cloud

Job description

About the Role

We are building a multilingual Large Language Model tailored for Bahasa Indonesia and regional languages. We are looking for a passionate Senior Data Scientist to help shape the future of open and inclusive AI for Indonesia, as well as playing a pivotal role in identifying impactful AI use cases. As a Senior Data Scientist working on LLMs, you will design and build high-quality datasets, advanced model pre-training, fine tuning and alignment techniques, and collaborate closely with product and engineering teams to ship safe, reliable LLM-powered features to millions of users. This role offers the opportunity to drive innovation, solve critical business challenges, and shape the future of AI-driven solutions at GoTo Group.

What You Will Do

• Perform data annotation and labeling based on provided guidelines
• Validate language accuracy, grammar, and contextual relevance
• Review annotated datasets to identify and correct errors
• Ensure consistency and quality across large volumes of data
• Collaborate with internal teams to refine annotation processes
• Provide feedback to improve annotation guidelines and workflows

What You Will Need

• 4+ years of experience in LLM, Deep Learning, NLP, Computer Vision, or Voice.
• Proficient in data preprocessing, model training, evaluation, and optimisation.
• Practical experience in applying deep learning to solve real business problems, with models successfully deployed and used in production environments.
• Proficient with Python and deep learning frameworks such as PyTorch or Tensorflow.
• Experience with cloud platforms like Alicloud or Tencent.
• Strong communication skills to understand business needs and effectively convey analytical solutions.
• Ability to write clear and concise technical documentation.
• A Master's or PhD in Computer Science, Data Science, AI, or a related field.
• Understanding Bahasa Indonesia will be an advantage.

About the Team

The LLM team is on a mission to build the most capable and culturally-aligned multilingual LLMs for Indonesia. At GoTo Group, the team is at the forefront of developing state-of-the-art language models. We are building foundational AI models that understand and generate Bahasa Indonesia and regional languages - empowering more inclusive technology. We work on everything from continual pretraining large-scale LLMs to alignment and safety fine-tuning, using both structured and unstructured data from diverse sources. Our projects span core model development, dataset curation, safety systems, and real-world deployment in consumer and enterprise applications. Our team brings together members with diverse technical and cultural backgrounds, bringing expertise in machine learning and local languages.

About GoTo Group

GoTo is the largest digital ecosystem in Indonesia. GoTo's mission is to 'empower progress' by offering technology infrastructure and solutions that help everyone to access and thrive in the digital economy.

The GoTo ecosystem provides a wide range of services, including mobility, delivery, payments, financial services, and technology solutions for merchants. The ecosystem also provides e-commerce services through Tokopedia and banking services through its partnership with Bank Jago.

About Gojek

Gojek is Southeast Asia's leading on-demand platform and pioneer of the multi-service ecosystem with over 2.5 million driver partners across the regions offering a wide range of services such as transportation, food delivery, logistics and more. With its mission to create impact at scale, Gojek is committed to resolving consumer problems and raising standards of living by connecting consumers to the best providers of goods and services in the market.

About GoTo Financial

GoTo Financial accelerates financial inclusion through its leading financial services and merchants solutions. Its consumer services include GoPay and GoPayLater and serve businesses of all sizes through Midtrans, Moka, GoBiz Plus, GoBiz, and Selly. With its trusted and inclusive ecosystem of products, GoTo Financial is open to new growth opportunities and aims to empower everyone to Make It Happen, Make It Together, Make It Last.