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Senior Python Developer (LLM frameworks)

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.


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.


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.



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


Average salary estimate

$110000 / YEARLY (est.)
min
max
$100000K
$120000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

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Collaboration over Competition
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Fully Distributed
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Some Meals Provided
Snacks
Social Gatherings
Pet Friendly
Company Retreats
Dental Insurance
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Health Savings Account (HSA)
MATCH
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FUNDING
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
No info
HQ LOCATION
No info
EMPLOYMENT TYPE
Full-time, hybrid
DATE POSTED
April 15, 2025

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