At Mindera, we believe in building software that improves lives. As a Senior AI Engineer, you will have the following focus: Backend Architecture & Development: Design, build, and maintain scalable, high-performance microservices using Java *****+ and the Spring Boot framework. Agentic System Design: Architect and implement autonomous AI agents using frameworks like Spring AI or LangChain4j. Develop systems capable of multi-step reasoning, dynamic tool utilization, and memory management. LLM Integration: Integrate commercial Azure Co-pilot, into enterprise applications via robust RESTful APIs. Prompt Engineering & Optimization: Craft, test, and version-control complex prompts to ensure deterministic, safe, and accurate model outputs. Use skills and agents md files for long term maintainability. System Reliability: Implement guardrails, rate limiting, fallback mechanisms, and observability tracing for AI features to ensure enterprise-grade reliability and security. Collaboration: Work closely with App Engineers, product managers, data, and frontend developers to define AI use cases and deliver seamless end-to-end user experiences on Mobile Apps. Requirements Key Qualifications: Bachelor's degree in Computer Science, Engineering, or a related field. At least 8 years of relevant professional experience for the role Previous experience as a Java Developer Experience with prompt optimization and LLM fine-tuning Knowledge of LangChain or equivalent orchestration frameworks. Strong technical writing skills for documenting APIs, architecture, and developer guides. The Things We Really Care About Health Insurance, because health comes first Open holidays, take the time you need for yourself Profit distribution for everyone Mindera Annual Trip, Sports, and sharing groups to connect and have fun! Training & conferences, create your own training plan Other Good Things Choose Laptop & Peripherals that best suit your needs Hotspot with unlimited usage (PT), for work or Netflix ;) We have amazing offices in Porto, Aveiro, and Coimbra if you want to physically connect with minders. Remote from Portugal is also an option. Remote from other Countries will depend on your current location and Projects. At the offices, we have a wide range of snacks to keep you fed and healthy Partnerships with local businesses #J-*****-Ljbffr