Reymundo López

Enterprise IoT Hardware Fleet & Security Infrastructure (Remote)

• Enterprise Device Scale (5,000+ Daily Devices): Architect and maintain core APIs and backend subsystems directly powering 5,000+ active enterprise client devices every day with high availability and fault tolerance.
• Biometric 2FA Authentication Subsystem: Designed and implemented an innovative multi-factor authentication (2FA) mechanism leveraging native FaceID and peer-to-peer verification flows, eliminating dependence on third-party authenticator applications.
• Internal Developer Tooling & AI Skills: Built and deployed custom AI-assisted development skills and automated workflows, standardizing business logic execution and eliminating repetitive development overhead across engineering teams.
• Full-Lifecycle SDLC Traceability: Automated end-to-end SDLC tracking linking issue generation directly to Git branching strategies, commit conventions, PR templates, and CI/CD validation gates.
• Enterprise CI/CD & Security Pipelines: Architected automated build/deployment pipelines integrating HashiCorp Vault secrets management, private Docker registries, internal NPM package registries, and enterprise SSO/authentication.
• Kubernetes Orchestration & Observability: Containerized full-stack services with Docker and configured zero-downtime deployment pipelines targeting internal Kubernetes (K8s) clusters; deployed Elastic Stack (ELK) for centralized telemetry and proactive log monitoring.

Cloud Architecture & Venture Engineering (Remote)

• System Design & Architecture Governance: Guided core system architecture, load-handling strategies, infrastructure automation, and technical trade-offs across startup portfolio initiatives.
• Cloud & Backend Engineering (Mi Compa Seguros): Developed full-stack features and critical backend logic using React on AWS EC2, AWS Lambda, managed MySQL, and Terraform, accelerating feature delivery to meet strict product launch deadlines.
• CI/CD & Cloud Automation (iSana Health): Built and automated the core web foundation on Firebase and React, engineering end-to-end GitHub Actions CI/CD pipelines that automated production releases, real-time data sync, and internal operations.

Enterprise Cloud Modernization & Microservices Architecture (Remote / León, Mexico)

• Monolith-to-Microservices Modernization: Co-led the architectural decoupling of a large-scale monolithic application into domain-driven microservices, migrating workloads from a single AWS EC2 instance to multi-node Kubernetes (K8s) clusters.
• High-Volume Data Transformation & API Facades: Built high-throughput backend services that ingested, processed, and transformed massive enterprise datasets into optimized formats consumed by heterogeneous mobile clients.
• Security & Auth Layer Segregation: Designed distinct architectural layers separating authentication/authorization concerns from core data processing, cleanly bypassing legacy authentication roadblocks.
• Enterprise Mobility & Acquisition Transition (Propelics): Initially joined Propelics delivering high-performance mobile clients for US-based enterprise accounts; retained and promoted to Software Architect post-acquisition by Anexinet to lead cloud architecture and backend modernization initiatives.

Mass Transit Mobile Payments & Ticketing (León Area, Mexico)

• High-Scale Transit Platform (5M+ Users): Owned end-to-end mobile development of the Trip Planner engine on iOS and Android for the Chicago transit system (Ventra/CTA), serving over 5 million active commuters.
• First-Wave Apple Pay Integration: Implemented one of the earliest large-scale mobile Apple Pay payment flows, enabling seamless transit pass purchases and digital card management.
• Shared Runtime Architecture: Maintained a shared JavaScript business logic layer executed across iOS, Android, and backend services, ensuring consistent validation logic and accelerating cross-platform feature delivery.
• Industrial Telemetry & Tracking Client: Developed a native iOS application (Objective-C & Swift) for a North American forestry client, incorporating GPS telemetry, driver route logging, and automated compensation calculations.