Reaktor

AI Developer - LLM Applications

Reaktor
Apply
2 months ago
Helsinki, FinlandSenior

Responsibilities

  • Design and implement scalable, maintainable end-to-end LLM applications from backend architecture through user-facing components.
  • Integrate commercial and open-source LLMs into production applications and workflows using APIs or fine-tuning.
  • Build RAG pipelines involving embeddings, vector databases, prompt engineering, and guardrails.
  • Design evaluation pipelines to benchmark model performance and safety.
  • Collaborate with cross-functional teams and clients to develop AI use cases and select suitable technologies.
  • Advise client technology and business teams and provide technical expertise throughout projects.
  • Develop AI-enabled software development processes and ways of working.
  • Contribute to software architecture and design, test automation, debugging, and other software development tasks.

Requirements

  • Production experience with AI software development technologies, backend and frontend development, operations, and consulting.
  • Experience deploying AI applications in cloud environments such as Azure, AWS, or GCP.
  • Experience with containerization and orchestration using Docker and Kubernetes.
  • Foundational knowledge of DevOps, continuous integration, automated deployment, and test automation.
  • Knowledge of vector databases and databases such as PostgreSQL, pgvector, pgvectorscale, ChromaDB, or Pinecone.
  • Understanding of data privacy, security, and ethical considerations for sensitive AI data.
  • Understanding of transformer-based models and infrastructure concepts.
  • Comfort engaging with client stakeholders.
  • Fluent verbal and written Finnish and English.
  • Experience with Python or Node.js/TypeScript and frameworks such as LangChain, FastAPI, or LlamaIndex may be required for some projects.
  • Proficiency in JVM-based languages may be required for some projects.

Benefits

  • Collaborative, low-hierarchy work environment with flexibility to choose approaches, technologies, and methodologies with clients and teams.
  • Supportive and experienced community with opportunities to influence how work is performed.
  • Sustainable work-life balance and practical support including a free moving day, Reaktor car share, sick child care services, and office space for private events.
  • Internal training courses, community events, technology discussions, and opportunities for extended academy-style studies such as Cloud Academy.
  • Access to more than 300 supported hobby clubs and community activities.
  • Role based in Helsinki.
Reaktor

About Reaktor

501-1,000 employees

Reaktor is a privately held global technology consultancy that designs and builds digital products, software systems, and data/AI solutions for enterprise clients. It provides end-to-end consulting, engineering, and digital transformation services on a project basis, with notable customers including adidas, HBO, KONE, Cathay Pacific, and Supercell. Founded in 2000 and headquartered in Helsinki, it operates offices across Europe, North America, and Asia.

Contact me