Responsibilities:

• Managed and mentored a team of engineers, including 3 interns and one college graduate who advanced to Senior Software Engineer; built a strong team culture that boosted output by 20% using Agile/Scrum, regular feedback, and collaborative approaches.
• Architected the OpenEdge platform’s backend services as the second employee, enabling reliable transport-service separation across 5+ cities with AWS/Proxmox microservices and Docker; evaluated Kubernetes for scaling needs.
• Led the creation of a patented authentication protocol (US Patent 10,439,933) for systems handling up to 1M devices at 99.9% reliability; oversaw architecture, data pipelines, and secure operations, working with South American contractors on frontend.
• Built a Knowledge Base System using Python, React, LLMs, and LangChain with a Qdrant vector database; automated document uploads/parsing, reducing processing time from 1-2 hours to seconds and improving search accuracy by 90%.
• Optimized network management platform with Python, Open vSwitch/OpenFlow, and Zabbix monitoring; reduced signup time from 30 seconds to 5 seconds and improved throughput for large-scale operations.
• Designed PHP-based REST APIs for SDN orchestration, using GitLab CI/CD and Ansible for automation to maintain scalable infrastructure with SLAs across sites.
• Developed Laravel-based PHP apps as starting frameworks for 2 years, creating a reliable base for scalable solutions.
• Worked with stakeholders to align platform roadmap with business needs, integrating AI trends to enhance processes and support global teamwork.
• Acted as main R&D person, leveraging quick learning to adopt new tech (LLMs, vector databases) to solve complex problems.

Responsibilities:

• Retained continuously for 10+ years as the trusted production engineer for a high-volume SMS platform serving thousands of business customers — after architecting its core backend as a full-time engineer (2011-2015), have owned incident response, root-cause analysis, fixes, and fleet-wide deployment ever since.
• Modernized the decade-old platform architecture for reliability and consistency: brought the fleet under Ansible configuration management with repeatable rolling deployments, added systemd watchdog supervision to legacy services, and introduced modern observability with Prometheus/Alertmanager — replacing ad-hoc, per-server administration with a uniform, automated operating model.
• Root-cause every incident to the code level rather than patching symptoms: traced a runaway message-lookup incident that threatened carrier billing to a single error-handling flaw in a file-processing loop, and a fleet-wide service crash-loop to subtle Redis blocking bugs — both fixed permanently, neither recurred.
• Practice disciplined, low-risk releases: validate fixes on a single-host canary against live traffic before Ansible rolling deployment to the fleet, so customer-facing fixes ship with zero regressions.
• Tuned the monitoring stack to be trustworthy — calibrated alert thresholds and aggregation and restructured service heartbeats to eliminate false positives without losing real-outage detection.
• Extend the platform’s carrier layer directly: stood up a new TLS-encrypted SMPP bind between Kannel and Sinch for a customer short code, and turned undocumented SMS concatenation (UDH) behavior into internal reference docs the team can build on.
• Delivered the Textwire rebrand across DNS, Caddy TLS termination, and branded assets on all web servers with no customer downtime.

Responsibilities:

• Managed a team of 2 engineers for 1.5 years, maintaining 99.9% uptime for backend services and SOAP APIs (PHP/Node.js); handled 15,000+ daily transactions and millions of text messages yearly for small to midsize companies.
• Architected a high-throughput backend model on Google Cloud (GCP) that sped up messaging 100x (2,000-7,500 messages/second vs. 20-75), optimizing data I/O and securing high-volume rate deals.
• Oversaw cloud infrastructure and data pipeline optimizations, using automated testing, monitoring, and capacity planning to cut costs and boost reliability.
• Developed SOAP APIs to improve frontend-backend flow, collaborating with product teams to ensure scalability and mission-critical readiness.
• Fixed key issues with test-driven development and Agile methods, maintaining positive team dynamics and strong partnerships.

Responsibilities:

• Built backend applications in C#, PHP, and SQL for industries like e-commerce and logistics, focusing on scalable API design and system efficiency.
• Streamlined processes using Agile/Scrum, reducing delivery times by 20% across projects.
• Built project sign-off/approval process to handle complex project approvers with flexible signing methodologies.