Middle Python Developer, ML

Sigma Software Group

. Join one of two AI initiatives: ChatCPI, an LLM-powered assistant for intelligent search and question answering over large technical documentation, or a Knowledge Graph Platform focused on structuring and connecting enterprise information for AI-driven use cases .

Posted 9/29/2026full-timeRemote • Poland, MaliMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and implementing LLM-based features and RAG pipelines, with a strong focus on data processing and improving AI output quality. Proficient in Python and experienced in AI/ML projects, with a solid understanding of vector embeddings and hybrid search techniques.

Highest-signal resume keywords

Python ProgrammingLLM ImplementationRAG ArchitectureVector EmbeddingsAI/ML Project Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software DevelopmentData ProcessingInformation StructuringModel EvaluationAnswer Generation

Soft Skills

Independent WorkProactive CommunicationOwnership of Tasks

Tools & Technologies

Hybrid SearchKnowledge GraphsGraph Databases

Industry Keywords

Telecommunications

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Join one of two AI initiatives: ChatCPI, an LLM-powered assistant for intelligent search and question answering over large technical documentation, or a Knowledge Graph Platform focused on structuring and connecting enterprise information for AI-driven use cases
Design and implement LLM-based features and RAG pipelines from data ingestion to answer generation
Build and optimize retrieval using vector embeddings and hybrid semantic and keyword search
Process, clean, and structure source information to improve the accuracy and relevance of AI-generated output
Evaluate model quality, experiment with new approaches, and bring proven solutions into production
Work closely with the team to integrate AI components into the wider platform
Own changes end-to-end, including design, implementation, testing, and deployment
Work independently while proactively communicating blockers, scope questions, and technical trade-offs

Requirements

What you’ll need

3+ years of commercial software development experience
2+ years of experience working on AI/ML projects
Good Python skills with hands-on implementation experience
Practical experience with LLMs and modern AI technologies
Practical experience with RAG architecture, vector embeddings, and hybrid search
Experience with information processing aimed at improving AI quality, including data preparation, chunking, metadata enrichment, and relevance tuning
Ability to work independently and take ownership of tasks from design through deployment
Upper-Intermediate English
Experience with knowledge graphs or graph databases (a plus)
Background in the telecommunications domain (a plus)

Benefits

Comp & perks

Employees can work remotely