Senior Python Developer (LLM frameworks)

Company
On The Spot Development
Team
AITHENA
Department
Engineering & DevOps
Poland
Remote
B2B or UoD
Engineering & DevOps
AITHENA
Remote
Poland
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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

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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

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Nice to have

  • Basic DevOps skills, including Google Cloud Platform, K8S, Docker, CI/CD, and GitHub actions
  • Linux administration skills

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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!

Pdf, word, XLS
Max 3 files up to 25 MB

Thanks for applying!

Your application has been successfully submitted. One of our recruiters will be in touch soon.

Oops! Something went wrong while submitting the form.

Ellina Pavlenko

Recruiter

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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Max 3 files up to 25 MB

Thank you!

Your message has been sent successfully! We will contact you as soon as possible.

Oops! Something went wrong while submitting the form.

Ellina Pavlenko

Recruiter

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