[Hiring] Server Systems-Lead Engineer @FICO

Role Description

Join FICO’s platform engineering team to architect and operate the AI/ML infrastructure powering FICO Assistant — our client-facing AI product serving financial institutions across APAC, EMEA, and North America. You’ll own production AI/ML systems end-to-end: model serving, training pipelines, vector search, cloud databases, and 24x7 operational support.

• Design and operate production AI/ML infrastructure — model serving (SageMaker, Bedrock, self-hosted LLMs on EKS), training pipelines, and inference optimization.
• Own the FICO Assistant database layer — provisioning, scaling, performance tuning, and DR across:
  • Amazon OpenSearch — embeddings and vector search (k-NN indexes for RAG).
  • Amazon DocumentDB — conversation/session storage (MongoDB-compatible schema design, compound/TTL indexing, change streams).
  • Aurora PostgreSQL — Langfuse observability backend.
  • Amazon ElastiCache Redis — Langfuse caching layer (shard management, eviction policies, Multi-AZ failover).
• Build Infrastructure as Code (Terraform, Crossplane, CloudFormation) for all AI/ML and database resources.
• Implement CI/CD pipelines for ML systems with automated testing and model validation gates.
• Implement monitoring and alerting using CloudWatch and Grafana across all database and AI/ML services.

Qualifications

• 8+ years in infrastructure/platform engineering; 3+ years focused on AI/ML infrastructure.
• Hands-on ML model serving — SageMaker, Bedrock, vLLM, or TGI.
• Vector search / embedding index management — OpenSearch k-NN, dimension tuning, index optimization for RAG.
• Kubernetes (EKS) for ML workloads — GPU node pools, autoscaling, service mesh.
• LLM application patterns: conversation memory, guardrails, agent frameworks (LangChain, LlamaIndex).
• Database security: IAM auth, TLS, encryption, fine-grained access controls.

Requirements

• Hours: 11 AM – 8 PM Mexico Time Zone (weekdays).
• On-Call: Rotating alternate weekends.
• Support Model: 24x7 follow-the-sun for client-facing AI product.

Benefits

• An inclusive culture strongly reflecting our core values: Act Like an Owner, Delight Our Customers and Earn the Respect of Others.
• The opportunity to make an impact and develop professionally by leveraging your unique strengths and participating in valuable learning experiences.
• Highly competitive compensation, benefits and rewards programs that encourage you to bring your best every day and be recognized for doing so.
• An engaging, people-first work environment offering work/life balance, employee resource groups, and social events to promote interaction and camaraderie.