About On The Spot
We bring startups and disruptive tech companies to the local market, offering engineers the opportunity to work on innovative, high-impact products. Join us and become a member of their R&D team while we take care of employment, HR support, a benefits package, and an enjoyable work environment.
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 Full-Stack Developer to build and maintain robust backend services while implementing UI components for their own features within an existing application.
The primary focus will be on backend development — designing scalable APIs, optimizing performance, and ensuring high reliability — while contributing to front-end tasks as needed to deliver complete, end-to-end functionality in an Agile environment.
Responsibilities
Write clean, concise, and scalable 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
Work on performance optimization, testing, and troubleshooting
Requirements
5+ years of experience in development with Python
Experienced in frontend development using React
Strong analytical and troubleshooting skills
Knowledge of PostgreSQL and experience with designing and implementing data-intensive systems
Solid understanding of software design principles, concurrency, synchronization, memory management, data structures, algorithms, etc.
Ability to prioritize and organize effectively with good communication skills
English B1+
Nice to have
Basic DevOps skills, including Google Cloud Platform, K8S, Docker, CI/CD, and GitHub actions
Experience with LLM frameworks (LlamaIndex or LangChain)
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 for 10 business days
Equipment provision
Partially compensated educational costs (for courses, certifications, professional events, etc.)
Legal and Accounting support in 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)
English and Polish classes 2 times a week (online)