Senior Machine Learning Engineer

HiirePortoJob.boközzétéve: 2026. 05. 22.
Kötelező:PythonAISenior

About the company

Hiire is supporting the search for a Senior Machine Learning Engineer.

This is an opportunity to join an early-stage, product-driven company where AI sits at the core of the platform. You’ll work closely with the founding team and play a key role in shaping the architecture, direction, and evolution of the company’s machine learning capabilities from the ground up.

Your tasks

As part of a fast-moving startup environment, you’ll have significant ownership, contribute to technical decision-making, and help define engineering and AI best practices as the platform continues to scale.

  • Designing and developing AI/ML capabilities that power core platform functionality
  • Building and deploying machine learning systems end-to-end, from experimentation to production
  • Working on problems related to:
  • Natural Language Processing (NLP)
  • Intelligent document processing
  • Semantic search and matching
  • Information extraction and classification
  • Web data parsing and enrichment
  • Experimenting with modern AI techniques, LLMs, and agent-based workflows to improve product capabilities
  • Training, evaluating, and optimizing models with a focus on scalability, performance, and reliability
  • Collaborating closely with engineers, product stakeholders, and founders to iterate quickly and deliver impactful solutions
  • Contributing to AI development standards, tooling, testing practices, and internal processes
  • Helping balance innovation with pragmatic engineering decisions in a fast-paced environment

Requirements

The team is looking for someone who enjoys solving complex technical challenges, experimenting with modern AI approaches, and building scalable, production-ready systems that deliver real value to users.

  • 3+ years of experience working as a Machine Learning Engineer or AI Engineer in product-focused environments
  • Strong Python development experience in production systems
  • Hands-on experience building AI-driven solutions using:
  • LLMs
  • Prompt engineering
  • Fine-tuning techniques
  • Conversational AI
  • Multi-agent systems/frameworks
  • Solid understanding of modern machine learning and NLP concepts
  • Experience deploying and maintaining ML systems in production environments
  • Strong problem-solving mindset with the ability to work independently and take ownership
  • Comfortable operating in ambiguous, fast-changing startup environments
  • Bachelor’s or Master’s degree in Computer Science, Machine Learning, AI, or a related field
  • Strong communication and collaboration skills

What we offer

  • High ownership and direct impact on product and technical direction
  • Opportunity to shape the AI architecture and engineering culture early on
  • Work alongside experienced founders and high-performing engineers
  • Fast iteration cycles and exposure to cutting-edge AI technologies
  • Product-centric environment where engineering work directly influences user value
  • Strong focus on innovation, experimentation, and continuous improvement
  • Salary Range: 70k - 90k