**DATA SCIENTIST I, II, III - Immediate requirement**
**(Senior x 1, Intermediate x 1)**
**Contract to Hire Position (Hybrid - Mexico City)**
Initially, you will be in a contract position for 6 to 9 months, after which you will be permanently hired by the client company. You will work in the office 2 days a week.
**About The Company**
Topcorner Solutions is a general IT services provider headquartered in Canada, with a strong presence across North and South America. Our mission is to drive digital transformation and innovation through tailored IT solutions that meet the evolving needs of our clients. We specialize in delivering end-to-end technology services, including IT consulting, managed services, and custom software development.
**Technical Skill set**:
**RESPONSIBILITIES**
- Fine-tune and deploy large language models to enhance their performance on legal text processing tasks
- Evaluate and help maintain our data assets and training/evaluation data sets
- Design and build pipelines for preprocessing, annotating, and managing legal document datasets
- Collaborate with legal experts to understand requirements and ensure models meet domain-specific needs
- Conduct experiments and evaluate model performance to drive continuous improvements
- Interface with other technical personnel or team members to finalize requirements.
- Work closely with other development team members to understand moderately complex product requirements and translate them into software designs.
- Successfully implement development processes, coding best practices, and code reviews for production environments.
**REQUIREMENTS**
- Must have practical experience with **Large Language Models (LLMs)**, **RAG**, prompt engineering, fine-tuning and benchmarking




- Formal training in **Machine Learning**: dimensionality reduction, clustering, embeddings, and sequence classification algorithms
- Experience with deep learning frameworks such as **PyTorch, Tensorflow and Hugging Face Transformers**.
- Practical experience in **Natural Language Processing** methods and libraries such as **spaCy, word2vec, TensorFlow, Keras, PyTorch, Flair, BERT**:
- Strong **Python** background
- Knowledge of **AWS, GCP, Azure**, or other cloud platform
- Understanding of data modeling principles and complex data models.
- Proficiency with relational and **NoSQL** databases as well as vector stores (e.g., Postgres, Elasticsearch/OpenSearch, ChromaDB)
- Knowledge of **Spark, Ray**, or other distributed computing systems highly preferred
- Knowledge of **API** development, containerization, and machine learning deployment highly preferred
- Experience with **ML Ops/AI Ops** highly preferred
PREFERRED QUALIFICATIONS
- MS in Data Science, Computer Science, Statistics, Machine Learning, or related field
**MUST HAVE**:
- Strong and effective communication skills
**KEY HIGHLIGHTS**:
- Work for a well-established client**:Lexis Nexis (Leading Legal Firm)**:
- Salary will be as per industry standards
**Job Types**: Full-time, Contract, Permanent
Contract length: 6 months
Ability to commute/relocate:
- 06600, Ciudad de México, CDMX: Reliably commute or planning to relocate before starting work (required)
Application Question(s):
- Do have practical experience with Large Language Models (LLMs), RAG, prompt engineering, and fine-tuning?
**Experience**:
- Data Scientist: 3 years (required)
**Language**:
- English (required)
Work Location: Hybrid remote in 06600, Ciudad de México, CDMX

📌 Data Scientist - Hybrid Position (Ciudad de México)
🏢 Topcorner Advisory Solutions
📍 Ciudad de México