About us Holycode Products is a well-established full service web agency that builds innovative digital solutions. Our team consists of 70+ top-notch IT professionals who work together on exciting projects and keep abreast of the latest trends in the IT industry. To reach our ambitious goals, we are looking for a highly motivated employee for the position of a Senior AI/ML/Python Developer that offers you the opportunity to join a fast-growing technology organization that is shifting productivity paradigms in the software engineering industry. Responsibilities + Focus on crafting intuitive and engaging solutions + Ensure a seamless user experience through performance optimization and usability testing + Analyze customer requirements, develop and implement proposals and digital solutions + Collaborate with other cross-functional team members to understand requirements, and design, develop, and maintain solutions end-to-end + Implement AI/ML solutions and services + Build and deploy production-ready machine learning models and AI systems + Develop and optimize large language model (LLM) applications, including prompt engineering and API integrations + Create and maintain data processing pipelines, including feature engineering and data validation systems + Monitor and tune model performance, costs, and resource utilization + Establish evaluation metrics and testing frameworks for AI systems + Stay current with AI/ML research and implement new techniques when applicable + Implement Python solutions + Build and deploy production-ready backend APIs + Implement various integrations with 3rd parties such as payment providers, KYC providers etc + Do code reviews, support the software development team during implementation with an active contribution to code if required + Maintain documentation and contribute to technical specifications + Work in an agile environment with a strong focus on delivering high-quality code + Collaborate closely with development, product management, and other teams to ensure the best results. + Stay abreast of industry trends, emerging technologies, and best practices in software quality assurance. Requirements + Bachelor’s degree in computer science, computer programming, software engineering, or a related technical field + At least 5 years of  professional experience as a Python developer or AI/ML engineer + Experience with a deep learning framework + Strong foundation in mathematics (linear algebra, calculus, statistics) + Experience integrating and working with LLM APIs + Knowledge of LLM frameworks + Demonstrated success in prompt engineering and LLM application development + Expertise in data preprocessing, feature engineering, and ETL pipelines + Experience with RAG systems and vector databases + Experience with cloud ML services + Knowledge of API orchestration and context management for LLM systems + Experience with traditional ML algorithms + Strong communication and collaboration skills, with ability to explain complex technical concepts to diverse stakeholders + Proficiency in using versioning tools (Git), Docker, and MLOps practices + Familiarity with MLOps tools + Expertise in specialized AI domains like computer vision, NLP, or Reinforcement Learning (nice to have) + Good time management and ability to prioritize tasks among multiple or changing priorities + Good communication skills, spoken and written, with fluent English as essential (knowledge of German is a plus) + Prefer to work on agile software development projects with remote teams What we offer At Holycode Products, we offer: + Full-time employment with flexible working hours + Equipment for work + 100% paid sick leave up to 30 days + 22 days of paid vacation, plus one additional paid vacation day for every 2 years spent in the company + Competitive benefit package (budget for sports, private health insurance for you and your family, Pizza Day, Friday lunch…) + Employee Referral Program: Incentives for successfully referring qualified candidates to our team + Working remotely within multidisciplinary teams in agile environment or working in one of our offices in Novi Sad, Nis or Belgrade (flexible) + Working on challenging projects and new technologies + Supportive environment for personal development and learning + Strong company culture and team spirit that supports your best work + Regular team-building events + Modern offices with fully stocked kitchens + New Year’s gifts and a theater show for kids + Anniversary gifts Sounds interesting? Please send us your CV in English -  we are looking forward to meeting you!   Powered by JazzHR