Ai Llm Software Engineer at blau direkt

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About the Role

We are looking for an experienced AI / LLM Software Engineer with a strong backend background in Goland to help us build production-ready AI capabilities.

This is not a pure “Prompt Engineer” role. We are looking for someone who understands how to design and build reliable systems around LLMs: RAG pipelines, AI agents, model integrations, observability, cost control, and AI-specific security.

Go will be one of the main implementation languages, but the core focus is on building robust, scalable, and secure AI-powered systems.

Your Responsibilities

• Design and build production-ready AI / LLM-based features and platform components.
• Integrate LLM APIs and AI models such as OpenAI, Anthropic, Gemini, or local models.
• Build and optimize RAG pipelines, including vector databases, embeddings, chunking strategies, and hybrid search.
• Design and implement AI agents and agentic workflows using LLMs, tools, APIs, and internal data sources.
• Develop backend services and APIs, primarily in Go and occasionally in PHP.
• Monitor and optimize LLM costs, token usage, latency, reliability, and output quality.
• Implement safeguards against prompt injection, data leakage, unsafe tool usage, and improper PII handling.
• Design maintainable systems using clean architecture, DDD, and pragmatic engineering principles.
• Evaluate new AI technologies and apply them where they provide real business value.
• Collaborate with product and engineering teams to bring AI concepts from prototype to production.

Your Profile

• Several years of experience in software engineering, ideally with a strong backend focus.
• Practical experience with LLM-based applications, AI workflows, or AI-assisted products.
• Good understanding of RAG concepts: vector databases, embedding models, chunking, retrieval quality, and hybrid search.
• Experience integrating LLM APIs, working with prompts, structured outputs, and tool/function calling.
• Awareness of AI-specific security risks, including prompt injection, PII stripping, data leakage, and unsafe tool execution.
• Strong backend development experience, preferably with Go.
• Solid understanding of software architecture, clean code, and system design.
• Experience with Docker, Git, CI/CD, and production environments.
• Ability to use modern AI development tools such as Cursor, Claude, Gemini, or JetBrains AI effectively.
• Strong ownership, pragmatic mindset, and good communication skills.
• Fluent English, minimum B2.

Nice to Have

• Experience with vector databases such as Qdrant, Pinecone, Weaviate, Milvus, Elasticsearch, or OpenSearch.
• Experience with AI evaluation, retrieval quality testing, or automated testing of non-deterministic systems.
• Experience with event-driven architectures and asynchronous processing.
• Experience with Kubernetes, RabbitMQ, MySQL, or MariaDB.
• Experience with React and TypeScript.
• Knowledge of PHP or legacy system integration.
• Knowledge of German.

Our Tech Stack

• Languages: Go, TypeScript, JavaScript, PHP
• AI / LLM: OpenAI, Anthropic / Claude, Gemini, Cursor, JetBrains AI, RAG, vector databases, embeddings, hybrid search, AI agents
• Databases: MySQL, MariaDB
• Infrastructure: UNIX, Kubernetes, RabbitMQ, Docker
• CI/CD: GitLab CI, CodeMagic
• Testing: Playwright, Python, Dart, Postman
• Tools: Jira, Confluence, Slack, G-Suite, Sentry

Benefits and Perks

• Private healthcare.
• Cafeteria system.
• Training budget: €800 per year.
• Internal trainings, hackathons, integration trips, and team meetings.
• Referral bonus.
• Startup atmosphere.
• Flexible working hours.
• Remote or hybrid work.
• Modern office with chillout zone, standing desks, bicycle parking, cloakroom, and showers.
• Regular office lunches and integration meetings.
• Some international travel included.

Szczegóły oferty:

• Firma: blau direkt
• Stanowisko: Ai Llm Software Engineer
• Miejsce pracy: Kraków
• Kraj: PL

Jak złożyć aplikację:

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