Senior Python Developer (LLM)

Ascendix; Kraków; Remote; PLN 255,000 - 341,000; Full time

Job summary

A technology solutions company in Kraków is seeking a Senior Python Developer to design machine learning infrastructure and collaborate with project managers. Candidates should have extensive experience with Python and related technologies, alongside strong software design principles. This position offers growth opportunities with B2B and remote cooperation options, and encourages continuous learning and development.

Benefits

20 paid vacation days

Udemy and Pluralsight subscription

Online and offline events & team-buildings

Qualifications

• 5+ years of Software Engineering experience.
• 3+ years of experience with Python and Python NLP libraries.
• Knowledge of OpenAI, Anthropic, or Mistral AI.

Responsibilities

• Design and implement machine learning infrastructure capabilities.
• Participate in introducing new technologies to promote innovation.
• Productionize and operate ML models and pipelines at scale.

Skills

Software Engineering experience

Python and Python NLP libraries

OpenAI, Anthropic, or Mistral AI

LangChain, Haystack, or LlamaIndex

Advanced RAG techniques

Agentic and multi-agent workflows

Streamlit for UI

Software Design knowledge

Git

NoSQL and SQL databases

Vector databases

Docker and CI/CD

AWS or similar services

Azure Document Intelligence

Agile development practices

Job description

About the job Senior Python Developer (LLM)

Ascendix Technologies is a software and services technology company founded in 1996 and headquartered in the United States, in Dallas, Texas.

The company has software development centers and branch offices in Poland, Portugal, and Ukraine, and distributed teams all over Europe, as we cooperate remotely since 2020.

We are a community of professionals committed to delivering second-nature solutions globally to digitize, optimize, and leverage processes. We specialize in building solutions for globally-focused businesses that look to leverage cloud computing, and commercial and open-source technologies for big data, search, applications, and cross-platform mobility. We have deep experience in Salesforce.com CRM platforms, and offer products, services, and productivity modules.

We are looking for an active and thoughtful professional who will strengthen our team as a Senior Python (ML/AI) developer.

Responsibilities:

• Design and implement machine learning infrastructure capabilities
• Participate in introducing new technologies to promote innovation
• Productionize and operate ML models and pipelines at scale
• Collaborate with Project Managers to solve customer problems

Requirements:

• 5+years of Software Engineering experience
• 3+years of experience with Python&Python NLP libraries
• Experience with OpenAI, Anthropic, or Mistral AI
• Knowledge of LangChain, Haystack, or LlamaIndex
• Experience with advanced RAG techniques (Knowledge Graph, Reranker)
• Familiarity with agentic and multi-agent workflows engines, such as LangGraph, CrewAI or similar
• Experience with Streamlit for building UI is a plus
• Strong Software Design knowledge, SOLID principles
• Proficient understanding ofGit
• Excellent understanding of both NoSQL and SQL databases
• Experience with vector databases (e.g., Pinecone, Weaviate, Milvus or similar)
• Experience with Docker and CI/CD processes
• Experience with AWS (or similar services like GCP orAzure)
• Familiarity with Azure Document Intelligence / Cognitive Services or AWS Sagemaker and Textract
• Knowledge of Agile (preferably SCRUM) development practices

Ascendix offers you:

• 20 paid vacation

Career and professional growth:

• B2B and remote cooperation
• Career development and professional growth
• Technical performance reviews and 360 Evaluation
• Collaboration with a personal Resource Manager, Technical leads, and mentors

Learning and Development:

• Udemy and Pluralsight subscription
• Internal knowledge-sharing opportunities

Corporate spirit:

• Online and offline events & team-buildings