We are looking for a Senior Python Developer (AI/ML Integrations) to join Group107 for a specific project. You will work on Summa, a cloud-based platform that transforms how accounting firms and tax consultants in Israel operate — automating routine technical and administrative work to cut operational hours by up to 80%. The product is live in production, used by leading firms, and on a long-term roadmap toward global expansion. In this role you will own the integration of LLMs and machine learning into the platform, architecting AI-driven systems that directly shape Summa’s core value and keep it at the technology frontier of the accounting industry. You will report to the VP of R&D and work independently with full ownership of the technical direction.
Responsibilities
- Design, develop, and maintain backend services and AI-driven systems in Python, ensuring reliability, scalability, security, and performance in cloud environments.
- Integrate and operationalize Large Language Models (LLMs) in production, including OCR, document processing, and knowledge-extraction pipelines.
- Architect and implement Retrieval-Augmented Generation (RAG) pipelines using vector databases and unstructured data sources.
- Build and optimize ETL workflows and data pipelines for both structured and unstructured data.
- Develop and maintain APIs (REST, GraphQL) using frameworks such as FastAPI, Flask, or Django.
- Implement and manage AI agents, agent-to-agent (A2A) interactions, and tool-based reasoning workflows with LLM orchestration frameworks (e.g., LangChain, LlamaIndex).
- Contribute to architecture decisions, code reviews, and engineering best practices, and collaborate with cross-functional teams to translate business requirements into technical solutions.
Required Skills
- 5+ years of professional experience as a Python Developer
- Deep, hands-on back-end engineering expertise in Python.
- Advanced knowledge of integrating LLMs into backend or production systems.
- Solid expertise in RAG architecture and modern AI system design.
- Strong understanding of vector databases and semantic search technologies.
- Perfect knowledge of API development (REST, GraphQL).
- Proven experience building robust ETL processes and data pipelines.
- Practical experience with cloud platforms (AWS or Azure).
- Proficiency with Git and modern CI/CD pipelines.
- English Upper-Intermediate (B2)+
Soft Skills
- Strong analytical and problem-solving skills with high attention to detail.
- Self-managed and able to work independently without micromanagement.
- Takes ownership and control of technical direction.
- Highly communicative with strong leadership capabilities.
- Comfortable operating in a fast-paced start-up environment.
Nice to Have
- Experience with containerization and orchestration (Docker, Kubernetes).
- Understanding of MLOps practices, model lifecycle management, and deployment strategies.
- Experience with MCP, advanced agent frameworks, and multi-agent systems.
- Experience with data lakes, data warehouses, or large-scale document-processing systems.
- Experience designing and maintaining automation workflows (e.g., n8n).
- Experience in the fintech industry.
What We Offer
- 20 vacation days (workdays)
- 7 sick days
- Personalized career growth
- Internal English classes
- Education reimbursement
- Corporate events and team buildings
- Equipment provided