# Calvin To > Senior Software Engineer | Cloud-Native Platforms, Distributed Systems (Go, Java), and Agentic AI Location: Phoenix, Arizona, United States Profile: https://flows.cv/calvinto I am a Senior Full-Stack Software Engineer specializing in Distributed Systems and Cloud-Native Modernization. My expertise lies in architecting high-performance Go and Java services that power massive enterprise migrations and high-throughput data workflows. I am a "solutions-first" engineer, known for building the migration tools and "control plane" logic required to transition complex customer datasets onto cloud systems with zero data loss and built-in observability. Core Expertise & Skills Systems & Infrastructure: Go (Golang), Java (Spring Boot), Microservices, Kubernetes (AKS/EKS), Docker, API-First Design (OpenAPI). Intelligent Automation: Agentic AI, Model Context Protocol (MCP), Spec-Driven Development, Python. Solutions Engineering: Technical Discovery, Proof-of-Concept (Poc) Demos, Stakeholder Alignment, React/TypeScript Prototyping. Cloud & Resilience: Cloud-Agnostic Design, Prometheus, Grafana, CI/CD Pipelines, System Resilience. Key Achievements Enterprise Cloud Migrations: Built custom migration engines that automated the transition of massive customer datasets to cloud-native platforms, significantly reducing onboarding friction and manual overhead. AI-Driven Velocity: Leveraged Agentic AI and MCP to bridge the gap between discovery and delivery—transforming raw customer requirements into AI-authored PRDs and functional prototypes to secure the "Technical Win." Strategic Stakeholder Alignment: Partnered with UX designers and business leaders to translate complex backend orchestration into intuitive React dashboards, ensuring technical solutions are directly mapped to measurable business outcomes. High-Scale Architecture: Specialized in replacing legacy monoliths with modular, resilient microservices that prioritize data integrity and real-time system health monitoring. Let’s Connect I am currently exploring opportunities in Software Engineering, Solutions Engineering, Sales Engineering, or Systems Architecture where I can use my deep technical background to drive customer value and technical evangelism. ## Work Experience ### Senior Software Engineer @ SAS Jan 2022 – Present Architectural Leadership & Design Authority: Led end-to-end project delivery by authoring Technical Design Documents (TDDs) and leading Architectural Design Reviews; made critical decisions on system boundaries and data modeling to improve throughput and delivery predictability. Platform Orchestration (Go): Owned the delivery of a greenfield Go microservice (PostgreSQL, AKS) for multi-step migration workflows; optimized processes from hours to minutes and safeguarded $1.7B in annual revenue. Diagnostic Intelligence (Java Full-Stack): Built an interactive diagnostic dashboard (Java, Spring Boot, Azure) to provide node-level analysis for 1,000+ daily migration transforms; engineered automated classification of results and actionable remediation, reducing customer-reported issues significantly. Self-Service CLI Engineering: Engineered Go-based CLI tools integrated with backend REST APIs; enabled bulk operations, automated validation, and troubleshooting capabilities that reduced dependency on manual support processes. Project Management & SDLC Orchestration: Directed small agile teams through the full software life cycle; utilized MCP servers and spec-driven development to translate meeting records into actionable PRDs, ensuring project alignment and reducing rework. Observability & Reliability: Established monitoring infrastructure using Prometheus and Grafana on Kubernetes to track latency and failure rates; eliminated guesswork from incident response and improved reliability under load. Quality & Accessibility (a11y) Governance: Transformed testing workflows using AI agents for TDD, code reviews, and automated a11y checks; established quality gates that reduced production regressions by 20%. Technical Mentorship & Stakeholder Strategy: Mentored junior engineers in system architecture and code quality while delivering Proof-of-Value (PoV) demos to customers; reduced post-delivery change requests. ### Paradox’s API and Integrations Competition @ Paradox Jan 2022 – Jan 2022 | Scottsdale, Arizona, United States • Engineered a Twilio API integration within a small team to enable simultaneous posting across social media channels, showcasing solution architecture skills and earning recognition from industry experts for rapid delivery and practical business impact. ### Product Solutions Engineer @ ON Semiconductor Jan 2021 – Jan 2021 | Phoenix, Arizona, United States • Engineered Excel-based data models using Python and R to compare MOSFET simulations with lab results, identifying discrepancies and recommending enhancements to improve the accuracy of modeling tools for end users. • Developed technical documentation and training materials, delivering knowledge transfer sessions to 25+ engineering and marketing stakeholders, reducing application troubleshooting time by 30%. ### Undergraduate Teaching Assistant - Digital Design Fundamentals @ Ira A. Fulton Schools of Engineering at Arizona State University Jan 2019 – Jan 2020 • Facilitated interactive learning sessions and targeted review meetings for 40+ engineering students in digital design coursework. Enhanced understanding through personalized office hours and collaborative exercises, improving average quiz scores by 15%. ### Public Relations Chair @ Acacia Fraternity Jan 2018 – Jan 2019 | Tempe, Arizona • Manage marketing and communication activity on all social media platforms as well as advertisements and organization relations. • Utilize Adobe Photoshop and Premiere Pro to create content and designs on for organizational promotion, including merchandise, recruitment videos, and community outreach flyers. • Represent the chapter at all fraternity and university functions. ### Sales Associate @ Under Armour Jan 2019 – Jan 2019 | Phoenix, Arizona Area Assisted/rang out customers, unboxed/processed clothing onto the sales floor, and maintained store standards. ### Sales Associate @ The North Face, a VF Company Jan 2016 – Jan 2018 | Phoenix, Arizona Assisted/rang out customers, unboxed/processed clothing onto the sales floor, and maintained store standards. ## Education ### Bachelor's degree in Computer Engineering Ira A. Fulton Schools of Engineering at Arizona State University Jan 2018 – Jan 2022 ## Contact & Social - LinkedIn: https://linkedin.com/in/calvinto14 --- Source: https://flows.cv/calvinto JSON Resume: https://flows.cv/calvinto/resume.json Last updated: 2026-03-22