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Senior Backend Developer
Python & LLM frameworks
Poland (B2B)
Remote/Hybrid
AITHENA is a startup focused on creating an AI-powered tool to enhance the regulatory review process in the pharmaceutical industry.

Their 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

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 with a friendly community spirit and supportive environment
  • Flexible working hours – we care about you (!) and your output
  • Paid vacation — 20 business days per year, 100% sick leave payment
  • 5 sick days per year
  • Equipment provision
  • Health insurance in Luxmed (after
    the end of the probationary period)
  • Partially compensated educational costs (for courses, certifications, professional events, etc.)
  • Legal and Accounting support
    in Poland
  • English and Polish classes 2 times
    a week (online)
  • Ability to work from our comfortable office in Warsaw at Prosta str. 51
  • Bright and memorable corporate life: corporate parties, gifts to employees on significant dates
  • Additional compensation benefits
Join AITHENA Team ✨
If you'd like to work from Poland, having a PBH visa/Karta pobytu/Paszport Polski is obligatory to be considered for this position. Thank you!
Ellina Pavlenko
Recruiter
elina.paulenka@onthespotdev.com