Senior Software Engineer AI

Job Description

AI / ML Engineer (Mid / Senior) – LLM, RAG, Python📍 Kraków, Poland | Hybrid model (2 days per week in the office)Rate: 180-220PLN netto For our client, we are looking for AI / ML Engineers (Mid and Senior level) to join a small, highly skilled engineering team building cutting-edge AI solutions for complex financial data and decision-making systems.This is an exciting opportunity to work on flagship Artificial Intelligence and Machine Learning initiatives, leveraging Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), and modern ML techniques to solve real-world business challenges within the Credit & Lending domain.You will be involved in the full lifecycle of AI solutions—from discovery and experimentation through design, development, deployment, and optimization.Key ResponsibilitiesAs an AI / ML Engineer, you will:Design, test, and optimize prompts for Large Language Models (LLMs)Build intelligent solutions using Retrieval-Augmented Generation (RAG) and vector databasesDevelop scalable services and APIs powering AI-driven applicationsWork across the full AI solution lifecycle, from ideation and prototyping to production deploymentCollaborate closely with engineering, product, and business teams to translate complex business needs into technical solutionsWrite clean, maintainable, and well-tested codeDeploy and scale AI workloads using cloud platforms (Azure or GCP)Apply AI best practices to ensure fairness, transparency, reliability, and performance of ML systemsAdditional Responsibilities for Senior EngineersLead architecture and technical design decisionsDrive the technical direction of AI initiativesMentor and support other engineers within the teamEvaluate, prototype, and introduce new AI technologies and approachesContribute to engineering best practices and standardsRequirementsEssential Skills and ExperienceStrong software development experience in Python, particularly within the AI/ML ecosystemExperience with frameworks such as FastAPI, LangChain, or similarKnowledge of PostgreSQL and vector databasesExperience designing microservices, APIs, observability solutions, and concurrent systemsHands-on experience with Azure or GCPPractical knowledge of containers, Kubernetes, and CI/CD practicesUnderstanding of LLM architectures and working with domain-specific datasetsExperience with RAG, prompt engineering, or agent-based AI architecturesSolid understanding of Machine Learning, NLP, and Deep Learning conceptsExperience working with TDD and/or BDDStrong English communication skills and the ability to explain technical concepts to non-technical stakeholdersFamiliarity with Java will be considered an advantageAdditional Requirements for Senior CandidatesExperience leading technical projects and initiativesProven track record in architecture and technology decision-makingMentoring and coaching engineersDriving innovation and experimentation in AI-powered systemsWhat We OfferOpportunity to work on advanced AI and LLM solutions addressing real business challengesSignificant influence over architecture and AI strategyCollaboration within a highly skilled, high-impact engineering teamExposure to modern technologies across LLM, RAG, Machine Learning, and cloud infrastructureStable yet innovative environment where AI solutions are delivered into productionHybrid working model with 2 days per week in the Kraków officeThe chance to design, build, and scale AI systems that create measurable business valueIf you are passionate about building production-grade AI solutions—not just experimenting with models—and want to work on systems that make a real impact, we would love to hear from you.Why apply for an Antal job offer?When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process.About AntalAntal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research.Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.Discover our latest job openings: https://en.antal.pl/candidatesFollow us on LinkedIn: https://www.linkedin.com/company/antalpoland