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Senior Python Developer (LLM frameworks)
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About On The Spot
On The Spot Development is a software development company that builds R&D teams for heavily invested startups and tech companies from the UK, EU, and Israel.
This job opportunity is for a position within one of our teams. You will be directly employed by On The Spot and will collaborate closely with our partner companies, contributing to their product's journey.
About the team
AITHENA is a startup focused on creating an AI-powered tool to enhance the regulatory review process in the pharmaceutical industry. Our goal is to build an AI-powered assistant for document analysis and review related to pharmaceutical regulations, enabling efficient search and user query responses based on a comprehensive database of legal case documents.
About the role
We are seeking a Senior Backend Developer to build scalable Python solutions, optimize performance, design RAG pipelines with LlamaIndex, and solve complex challenges in an Agile environment.
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Responsibilities
- Write clean, concise, and scalable Python code, ensuring stability and proper unit testing
- Diagnose complex technical issues, evaluate options, and implement optimal solutions
- Implement new requirements in an Agile environment, adhering to architectural principles and standards
- Collaborate with the team to provide input on architecture and design, ensuring solutions are aligned with best practices
- Design and implement RAG pipelines based on LlamaIndex
- Work on performance optimization, testing, and troubleshooting
Requirements
- Bachelor’s degree in Computer Science, Engineering, or relevant experience
- 7+ years of experience in Python development
- Proven experience with LLM frameworks (LlamaIndex or LangChain)
- Strong knowledge of PostgreSQL and experience with designing and implementing data-intensive systems
- Experience with cloud platforms (Google Cloud Platform, AWS, Azure)
- Solid understanding of software design principles, concurrency, synchronization, memory management, data structures, algorithms, etc.
- Ability to prioritize and organize effectively with good communication skills
- Strong analytical and troubleshooting skills
Nice to have
- Basic DevOps skills, including Google Cloud Platform, K8S, Docker, CI/CD, and GitHub actions
- Linux administration skills
Benefits
- Work in a highly professional team. Informal and friendly atmosphere in the team
- Paid vacation — 20 business days per year, 100% sick leave payment
- Equipment provision
- Partially compensated educational costs (for courses, certifications, professional events, etc.)
- Legal and Accounting supportin Poland
- Ability to work from our comfortable office in Warsaw at Prosta 51
- 5 sick days per year
- Medical insurance (after the end of the probationary period)
- Flexible working hours – we care about you (!) and your output
- English and Polish classes 2 times a week (online)
- Bright and memorable corporate life: corporate parties, gifts to employees on significant dates
Join us
To be considered for this position, you must have Polish citizenship, a D-type work visa, or a residence permit. Thank you!
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Contribute to our growth
Know someone perfect for this role? Let us know about them. We have a referral program to recognize your support.
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