Senior Machine Learning Engineer (NLP/LLMs)

Tidio

8d•Remote

About The Position

Tidio is seeking an exceptionally talented Senior Machine Learning Engineer to join their small but mighty Machine Learning team. This role is crucial for pushing the boundaries of conversational AI. The engineer will work closely with talented engineers and product leaders to ideate, build, and refine industry-leading NLP models and algorithms that power the Tidio platform. This is an opportunity to turn a passion for machine learning into world-class products that deliver real value to customers, providing state-of-the-art conversational AI products on a global level, reaching millions of consumers. Tidio has received a 10 million PLN grant to fine-tune generative open-source models on their data.

Requirements

4+ years of experience building end-to-end NLP and deep learning models in production environments.
Hands-on experience developing production systems that leverage LLMs (e.g., Claude, GPT, Gemini) to interact with real users.
Expert knowledge of Python.
Hands-on experience with asynchronous Python and REST API services (FastAPI, Flask).
Solid understanding of ML concepts, with experience evaluating, versioning, and managing models and prompts in production.
Strong software engineering skills and experience deploying models to production.
Strong passion and drive for self-development – following the latest trends and publications in the field of specialization on an ongoing basis.
Team-player mindset.
Fluent communication in English.

Nice To Haves

Experience with PyTorch/huggingface and common ML frameworks.
MLOps experience.

Responsibilities

Work on Lyro, Tidio's advanced RAG AI Agent built on the newest Claude and Gemini models.
Develop Lyro for automated customer support ticket handling and resolution (Ticket-Optimized Lyro).
Build a suite of AI-powered tools to help users configure, analyze, and get more out of Lyro (Lyro AI bundle).
Build agent orchestration for complex, step-by-step procedure execution with tracking and verification (Multi-Agent Workflow Systems).
Develop advanced product search, comparison, and recommendation capabilities (Agentic Product Intelligence).
Create ML systems to detect contradictions, identify outdated information, flag duplicates, and maintain knowledge quality at scale (Knowledge Base Management AI).
Build an internal AI agent that helps users discover Tidio features and configure Lyro (AI Onboarding Assistant).
Design intelligent systems to dynamically determine which data sources, guidelines, and tools the LLM should access based on conversation context, optimized for scale (Context Optimization Engine).

Benefits

Salary: 23,000 - 33,000 PLN net (B2B) or 19,000 - 27,000 gross on a contract of employment.
Work with an experienced team that continually shares knowledge and is not afraid of testing new solutions.
Remote-first work with flexible hours.
Possibility to use one of our offices in Poland or book a coworking space in your city.
Great development opportunities – company-supported courses and conferences.
26 days off guaranteed in a year.
Individual work tools - MacBook Pro, Dell screen, JBL headphones? You can tailor the equipment to your needs!
Sport & wellness benefit.
Private medical care.
Mental well-being program – individual therapy sessions and resources for employees.
Free access to one of the most popular e-book/audiobook services.
Regular social events (company-wide offsites, team events).
Budget for 1:1 English language classes.