About the job
Linnify is a global technology partner that specializes in building scalable digital products through custom software and AI development. With over 80 digital products delivered across Europe and North America, we help visionary startups and enterprises turn industry-defining ideas into reality.
We’re looking for an AI Engineer to join our growing team. You’ll work on impactful projects, from SaaS platforms to AI-powered tools. If you're passionate about developing and deploying machine learning models and staying ahead of AI trends, this is the role for you.
This is a hybrid position based in Cluj-Napoca, combining the flexibility of remote work with the energy of in-person collaboration.
Job responsibilities
- Design and implement AI solutions using foundational models (e.g., GPT, Claude, Mistral, LLaMA) tailored to business use cases
- Build and deploy agentic architectures, including delegation, planning, routing, and multi-agent coordination
- Integrate with agentic frameworks such as LangGraph, LangChain, or OpenAI Agents
- Fine-tune foundation models using domain-specific datasets
- Develop and maintain RAG (Retrieval-Augmented Generation) pipelines
- Work closely with product and engineering teams to build prompt management layers and reusable orchestration flows
- Apply best practices in reproducibility, versioning, and model lifecycle management
- Optimize AI solutions for accuracy, latency, and performance in production environments
Job qualifications
- Minimum 4 years of hands-on experience in applied AI/ML roles, with a strong focus on LLM-based product development
- Solid experience working with foundational models, prompt engineering, and prompt management workflows
- Hands-on knowledge of agentic architectures, including chain of thought, task delegation, and planning/routing patterns
- Familiarity with at least one agentic framework, such as LangGraph, LangChain, or OpenAI Agents
- Proven experience in fine-tuning foundation models using custom datasets
- Strong understanding of RAG pipelines, vector databases, and embedding models
- Proficient in Python, with experience using LangChain-related tooling
- Excellent collaboration and communication skills
- Ability to work autonomously and deliver high-quality, production-ready solutions
Nice to have
- Experience building evaluation pipelines to test and improve model output
- Familiarity with Prompt Guards or other prompt validation tools
- Experience with OCR flows and structured data extraction from unstructured sources
- Exposure to knowledge retrieval and parsing in complex enterprise environments
Technical skills
- Languages & Libraries: Python, LangChain, LangGraph, OpenAI APIs
- Concepts: LLM orchestration, Agentic workflows, Prompt engineering, RAG, Model tuning
- Cloud & Infrastructure: AWS, Docker, CI/CD for model deployment
Professional skills
- Problem-solving mindset and ability to take ownership
- Strong research and experimentation skills
- Comfortable working with ambiguity in fast-paced environments
- Passion for continuous learning and staying current with AI trends
- Excellent written and verbal communication in English
- Collaborative spirit across cross-functional product teams
What’s in it for you?
- Impactful work: Help shape the future of AI-powered digital products
- Hybrid flexibility: Balance in-office synergy with remote deep work
- Modern tech stack: Work with cutting-edge ML tools and cloud platforms
- Top-tier gear: Receive your own MacBook Pro for high-performance development
- Continuous growth: Certifications, mentoring, and learning resources provided
Learning & development
We’re committed to continuous growth. At Linnify, you’ll benefit from:
- Access to role-specific certifications fully supported by the company
- Regular team knowledge-sharing sessions and mentoring opportunities
- Clear visibility into your progress and opportunities for advancement
Benefits
- Flexible work schedule and remote work days
- Additional loyalty vacation days (up to 28 total vacation days based on experience and time with us)
- Health package via Regina Maria Clinic
- Meal tickets (40 RON/day)
- Certifications & training covered within your role
- Discounted gym subscription
- ESOP (Employee Stock Ownership Plan) so that you grow with us
- Excellent specialty coffee at the office, because great ideas deserve great fuel ☕
About Linnify
Linnify is a global technology partner that specializes in building scalable digital products. With expertise in custom software and AI development, we lead in creating industry-defining solutions for visionary companies.
Our mission is to deliver exceptional value through technology and have contributed to developing over 80 digital products in Europe and North America for dozens of startups and large corporations alike.
Our mission is to deliver exceptional value fast through technology.
How to apply
Ready to shape the future with AI? Apply now and be part of something meaningful:
👉 https://www.linnify.com/company/careers#Contact-recruitment
Linnify is an equal opportunities employer. We celebrate diversity and are committed to creating an environment where everyone thrives based on ability, potential, and passion.
Join us, shape the future, and grow alongside some of the brightest minds in Cluj-Napoca.
