Diego – Golang, Kubernetes, Temporal

Multi-tenant hyper-personalization platform that integrates with agent harnesses across the company to speed-up long-running workflows and customer experience. Reduced ML engineering time by 6 months (savings ~100M USD).

• Built multi-tenant agentic infrastructure for complex reasoning loops with a robust harness that was adopted by 70+ teams using networking protocols (A2A, DIDCOMM) and agentic UI paradigms (A2UI, mcpapps).
• Designed and built the control plane for a multi-tenant AI personalization platform spanning 170+ tenants, orchestrating data pipelines, embedding generation, model evaluation, and GPU-backed workloads.
• Personalization control plane to manage workload for +50 tenants based on topology aware jobs.
• Built multi-GPU training and inference infrastructure using Slurm, PyTorch FSDP/DeepSpeed, and vLLM, and developed long-running workflows for ML and agent workloads.
• Worked closely with data scientists to build scoring and online evaluation pipelines and helped launch AI-powered products used at Amazon scale.

Payment orchestration platform that optimizes payment acceptance, fraud chargebacks and conversion for enterprise customers. Raised over 37M USD axpanded to 8 countries.

• Helped build the payments platform from the ground up, scaling it to $8B+ in GMV across 30+ enterprise merchants while the engineering organization grew from 4 to 75 engineers.
• Built microservices in Go/GRPC supporting <100ms response time TM99 and PCI DSS complaint.
• Designed distributed, multi-region infrastructure, including control-plane systems for ephemeral environments and operators for automated chaos engineering, and worked directly with enterprise merchants on technical integrations.
• Built ML systems for segmentation, routing, fraud, and checkout that improved acceptance by 10% and conversion by 50% while maintaining chargebacks below 2%.

• AWS Marketing cloud
• PXT: The scientific branch of the company's consumer/employee understanding.

• Ad platform control plane for multi-party computing to train ML models using encrypted data, let to AWS clean rooms
• Built and operated large-scale internal platforms and developer infrastructure, including a release pipeline that reduced deployment time from more than 7 days to 1 hour and a distribution platform serving 5M+ employees.
• Helped build Amazon’s design system, used by 3,000+ engineers and 1.1M+ daily users, and improved observability, canary deployments, and automated CI/CD across the organization.
• Launched a multi-tenant mobile framework for 50+ tenants delivering across multiple business units within Amazon.

A global online job-search and hiring platform connecting job seekers with employers and job listings.

• Launched a global job platform for small and medium-sized businesses.
• Revamped the design system across more than 50 components.
• Redesigned onboarding and job-posting workflows to improve the user experience.

Bitcoin based bank for VIP customers based in Switzerland working on the Institutional finance team serving OTC operations for >10M net worth individuals.

• Built infrastructure for the company's products, including OTC trading systems that supported more than $1B in Bitcoin volume and platforms serving over 1M users.
• Worked on GDPR infrastructure and the company’s Bitcoin debit-card platform, spanning backend systems, user management, analytics, and compliance.
• Led the growth team to deliver rewards programs for cards, account top-ups, and main revenue drivers.
• Built integrations with marketing APIs to track customer interactions, attribution, and sources.
• Built UI interfaces with JavaScript and Elm.
• Developed scalable microservices with Python and Django.
• Worked on distributed systems using Channels, Celery, and event-driven architecture.
• Used AWS for infrastructure and Docker for staging and production deployments.

Digital product agency that collaborates with startups to manage the development lifecycle from design to implementation.

• Implemented highly available infrastructure for scalable microservices written in Go, Node.js, and Python within AWS and GCP.
• Provided consulting for digital products in building performant mobile apps with React Native and Flutter.
• Guided the development of scalable web applications using React and Vue.js.
• Managed projects in highly complex products.

Global financial technology company built on bitcoin & blockchain with a mission to enable anyone, anywhere to take control of their money.

• Developed growth applications to increase customer fidelity.
• Built integrations with marketing APIs to track customer interactions, attribution, and sources.
• Developed UI interfaces with JavaScript.
• Built scalable microservices with Python and Django.
• Worked on distributed systems using Channels, Celery, and event-driven architecture.
• Used AWS for infrastructure.
• Used Docker for staging and production deployments.