FOUNDER PROFILE

Emmanuel Jimenez

Senior Distributed Systems & Platform Engineer · Agentic AI (NVIDIA NCP-AAI) · Workday, ex-AWS, ex-Google

Location: Dublin, Ireland·LinkedIn: linkedin.com/in/iefaj·GitHub: github.com/efaj

Studio & Production Lab: Alongside my enterprise Cloud and Platform Engineering career, I operate Crenet Games as an independent game studio and greenfield production lab in Dublin, shipping zero-install multiplayer browser games, semantic vector caching pipelines, and open-source Model Context Protocol (MCP) governance tooling.

Distributed Systems and Platform Engineer with 18 years of experience building cloud infrastructure (Workday, Amazon Web Services, Google) and an NVIDIA-Certified Professional in Agentic AI (NCP-AAI). My work focuses on distributed infrastructure, zero-trust security, and practical Agentic AI: building local-first Model Context Protocol (MCP) servers, developer Skills, asymmetric pgvector semantic caching pipelines, and authoritative real-time backends.

Experience

Crenet Games · Technical Founder & Lead Architect

Jul 2026 - Present (Founded 2012 - 2014)Featured Studio Architecture

Leading the distributed backend, semantic vector caching, and AI governance architecture for live multi-tenant browser games and open-source developer tooling.

  • Semantic Vector Caching & Agentic Orchestration: Engineered custom Model Context Protocol (MCP) servers and a PostgreSQL (pgvector) semantic cache (11k+ vectors) for The Everything Quiz using asymmetric multilingual embeddings (RETRIEVAL_DOCUMENT / RETRIEVAL_QUERY) and cosine-distance RPCs, paired with fallback sampling and async two-stage LLM batch hydration to cut inference latency and compute costs (architecture write-up).
  • Asset Governance, Git Automation & Zero-Trust Security: Built an open-source Python FastMCP server with a unified JSON Schema ledger to trace hybrid human-AI generation pipelines for IP compliance, verify_environment_isolation process monitoring to block unauthorized network bindings, and atomic-commit-chain for non-interactive topological Git commit planning (governance write-up).
  • Real-Time Multiplayer & Resilient Payments: Engineered low-latency, connection-oriented WebSocket and authoritative Node.js backends synchronizing state for multi-tenant titles including ExVector (XV), Tax & Treason, and Caelum Exercitus, backed by dual-layer webhook and scheduled reconciliation payment flows (payments write-up).
  • Open-Source Infrastructure as Code (IaC) & CI/CD: Architected and published @efaj/pulumi-dynamic-stripe, a native TypeScript Pulumi Dynamic Provider bypassing legacy Terraform-bridge constraints to resolve Stripe soft-deactivation lockups, backed by GitHub Actions, Vitest, FOSSA, and release-please.
  • Proprietary Engine Architecture: Architected and deployed a 37k-LOC C++ engine featuring a custom 2-pass scripting compiler (Flex/Bison) and recursive backtracking algorithms for procedural generation.

Workday · Senior Software Engineer

May 2023 - Present · Dublin, Ireland
  • Continuous Validation & Monitoring Architecture: Architected a Python continuous validation engine for enterprise Kubernetes cluster builds, acting as domain lead within a cross-functional tiger team. Cut deployment latency by two weeks by deprecating manual scripts and securing cross-organizational buy-in for scalable metric replacements.
  • Agentic Operational Tooling (MCP & Skills): Engineered local-first Model Context Protocol (MCP) servers and developer Skills to automate operational toil: wrapped legacy Artifactory tooling to trace CVE dependency chains during security campaigns (shared across engineering), and built a hierarchical configuration CLI and MCP workflow to generate and validate multi-tier rollout changes.
  • Platform Security Champion & Hardening: Served as sole Security Champion for the cluster build team, conducting architectural threat reviews and spearheading a secrets-management campaign to eliminate plaintext CLI credential logging by migrating to Kubernetes Secrets.
  • Zero-Vulnerability Dependency Remediation: Planned and executed an end-to-end vulnerability remediation campaign across internally maintained service forks, resolving deep transitive dependency chains to reach a zero-vulnerability baseline.
  • Enterprise Open-Source Management: Engineered a scalable strategy for internally maintained OSS forks by integrating git subtree to preserve upstream history, driving architectural alignment to isolate manual modifications into dedicated git patch files.

Amazon Web Services (AWS) · Software Development Engineer II

Jan 2020 - May 2023 · Dublin, Ireland
  • Cross-Organizational Leadership: Authored High-Level Designs (HLDs) to align configuration rendering across three engineering organizations, and mentored newly onboarded software engineers to full productivity.
  • Security Architecture Reviewer: Acted as core Security Reviewer for a 30-person organization, accelerating internal launch reviews to under two months and scaling security guidance to partner teams across global time zones.
  • Mission-Critical Incident Response: Led incident response and root-cause analysis (RCA) for service outages, designing observability strategies (metrics, logging, dashboards, and alerting) to contain blast radius during active credential leaks and workload spikes.
  • Strategic Deprecations & Metrics: Orchestrated cross-org deprecation campaigns to migrate logic out of legacy microservices, and built operational telemetry reports to support departmental planning.

Gorilla Logic · Senior Software Engineer (RMS & Vaisala)

Jul 2018 - Nov 2019 (15 months)
  • Containerized an AWS EC2 microservice distributed system with Docker within a strict deadline for smooth on-premise deployment.
  • Implemented new security and user management features, enhancing system security and usability.
  • Worked with geospatial data pipelines.
  • Mentored engineers on coding interview topics through workshops and one-on-one mock sessions.

Rivet Logic (Acquired by Capgemini) · Backend Software Engineer

Feb 2017 - Jul 2018 (17 months)
  • Containerized a single-server production environment into multiple Docker containers, improving replicability and standardizing dev/prod parity.
  • Created a Machine Learning Recommendation Engine Proof of Concept demo for an enterprise client using Amazon Machine Learning.
  • Migrated a major worldwide hospitality company from PaaS to an IaaS architecture.
  • Developed features for the knowledge management platform of MasterCard.
  • Trained newer engineers on in-house web technologies and authored open-source Liferay OSGi modules and Crafter CMS templates.

Google NYC · Software Engineering Intern (Reporting Backend)

Jul 2015 - Oct 2015 (16 weeks)
  • Developed and E2E-tested Unified Reporting, Data Transfer, and DoubleClick Search Match Table reports (DoubleClick).
  • Ensured new reporting pipelines respected privacy and complied with US regulations including COPPA.

Early Career & Foundations

2008 - 2016
  • Roles: Research Assistant (Natural Language Processing & Data Mining) at Universidad de Costa Rica; Full-Stack / Backend Developer at Curridabat Municipality & Green & Energy; Founder at Crenet Games.
  • Highlights: 2x 1st Place Winner “Símbolo” National Programming Contest; 1st Place Winner Backcountry 24h Hackathon (Machine Learning Shopping Assistant); Author of Lexicography Natural Language Processing Paper (UCR).

Skills

Agentic AI & LLM Systems

  • Model Context Protocol (MCP) & FastMCP Servers
  • Agentic Workflows & Developer Skills
  • Semantic Search & Vector Caching (pgvector, Asymmetric Embeddings)
  • AI Asset Governance (JSON Schema) & Natural Language Processing

Cloud & Distributed Infrastructure

  • Kubernetes, Docker & Zero-Trust Isolation
  • GitOps, ArgoCD & Argo Workflows
  • CI/CD, Continuous Validation & Pulumi IaC
  • Real-Time WebSockets, Distributed Caching, AWS & GCP

Security & Governance

  • Architectural Threat Modeling & Security Reviews
  • Secrets Management & Runtime Isolation
  • Supply-Chain CVE Remediation & OSS Fork Governance
  • Regulatory Compliance & IP Provenance

Core Languages & Data

  • Python, Go, TypeScript, C++, Java, Ruby
  • PostgreSQL (pgvector, Supabase), Firestore & SQL/NoSQL
  • Apache Spark, Hadoop / MapReduce
  • Observability, RCA & Operational Telemetry

Certifications & Education

  • NVIDIA-Certified Professional: Agentic AI (NCP-AAI) · NVIDIA (Issued Oct 2026 · Expires Oct 2028 · Credential ID 198557462)
  • Security Champions: Secure Coding with AI & Green Belt (Go) · SecureFlag (Issued Oct 2026 · Credential ID 885337ba-e956-48a2-9b7f-eda8885b9e6d)
  • Advanced Argo Workflows & GitOps with Argo CD · Akuity (2024 · Verified credentials: Argo Workflows & Argo CD)
  • Data Science and Big Data Analytics 2.0 · Dell Technologies (2019)
  • AI Developer on AWS (Expert) · Pluralsight (2024 Skill Assessment)
  • Master's ABD in Computing and Informatics · Universidad de Costa Rica (2016 - 2019)