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Senior AI Engineer

Blend360 · Remote, Uruguay

Data Science / AI / Machine LearningSenior LevelRemoteQuick applyfull-time24 days ago

About The Role

As part of this role, you will be responsible for

  • Leading AI project delivery end to end, ensuring clear governance, strong stakeholder communication, and reliable execution.
  • Designing and building robust RAG systems, agentic frameworks, and LLM-powered solutions suitable for production environments.
  • Applying advanced prompt engineering techniques, including instruction design, few-shot prompting, structured outputs, and tool/agent prompts.
  • Leading feasibility assessments to determine the right technical approach, including prompting, RAG, fine-tuning, classical ML, or hybrid solutions.
  • Designing evaluation frameworks for AI systems, including LLM-as-a-judge, custom metrics, recall@k, precision@k, and go/no-go gates.
  • Running structured experiments across prompts, retrievers, chunking strategies, embeddings, reranking approaches, and models.
  • Identifying and categorizing model failures such as hallucinations, retrieval misses, instruction-following errors, and quality regressions.
  • Building scalable inference infrastructure and CI/CD pipelines for AI and ML models.
  • Automating the MLOps/LLMOps lifecycle, including tracking, versioning, deployment, monitoring, retraining, and continuous improvement.
  • Designing APIs, microservices, and orchestration layers optimized for latency, cost, reliability, and scalability.
  • Mentoring junior engineers and contributing to proposals, solution design, and new business initiatives.

The ideal candidate should have

  • 6+ years of experience building and deploying AI, ML, or data-driven solutions in production environments.
  • Strong expertise in Python and solid Git practices.
  • Hands-on experience with LLM-powered solutions, RAG systems, and modern GenAI development patterns.
  • Practical experience with RAG components, including chunking, embeddings, retrieval, reranking, and evaluation.
  • Strong understanding of prompt engineering techniques, including structured outputs, few-shot prompting, instruction design, and tool/agent prompts.
  • Proven experience designing evaluation strategies for AI systems, including metrics, dataset curation, structured experimentation, and quality gates.
  • Experience with MLOps/LLMOps practices and tools such as MLflow, Weights & Biases, or similar platforms.
  • Solid cloud experience with AWS, Azure, or GCP. Azure experience is preferred.
  • Experience with containerization, orchestration, scalable inference, APIs, and microservices.
  • Understanding of event-driven architectures and production-grade engineering practices.
  • Ability to communicate clearly with engineering teams, senior stakeholders, and clients.
  • A pragmatic approach to AI delivery, balancing innovation, reliability, cost, latency, and business value.

Nice to have

  • Experience with Databricks MLOps platform.
  • Experience with LLM fine-tuning.
  • Experience building agentic GenAI systems.
  • Experience with Infrastructure as Code.
  • Knowledge of security and observability practices for AI services.
  • Background in classical machine learning.
  • Open-source contributions or public technical work.
  • What about languages?
  • Advanced English level is required for written and verbal communication.
  • How much experience must I have?
  • At least 6 years of professional experience building and deploying AI, ML, or software solutions in production environments.

Our perks and benefits

🍔 Every day lunches! (headquarters)

  • Vegetarian, vegan, gluten and sugar free options.
  • Gourmet meals every Friday with our on-site chef!
  • ⚖️ Flexible working options to help you strike the right balance.
  • 👨🏽‍💻 All the equipment you need to harness your talent (Macbook and accessories).
  • ☕ Snacks and beverages available everyday (headquarters).
  • 🎮 After office events, football, tennis and game nights (headquarters).
  • ⚽️ Everyone is welcome to join our football league every Wednesday’s and Friday’s.
  • Challenge your teammates to a pool game and win the office’s trophy! Tennis courts available for friendly matches.
  • Not a sports person? Don’t worry, we also have chess championships, game and music nights for you to join!

📚 Learning opportunities

  • AWS Certifications (we are AWS Partners).
  • Study plans, courses and other certifications.
  • English Lessons.
  • Learn from your teammates on our Tech Tuesdays!
  • 👩‍🏫 Mentoring and Development opportunities to shape your career path.
  • 🎁 Anniversary and birthday gifts.
  • 🏡 Great location and even greater teammates!
  • So what are the next steps?
  • Our team is eager to learn about you! Send us your resume or LinkedIn profile below and we’ll explore working together!

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