Hi, I'm William To
Transferrable Skills
| 01
Communication & Stakeholder Engagement
Skilled in translating technical complexity into clear business value. Frequently present solutions to cross-functional teams and non-technical stakeholders. Led requirements workshops, authored technical documentation, and facilitated feedback loops across distributed teams and enterprise clients.
| 02
Leadership & Ownership
Proven ability to lead end-to-end delivery of critical projects. Served as technical lead on cloud migration and system modernization initiatives. Mentored junior developers, defined architecture patterns, enforced quality standards, and helped shape engineering culture within Agile teams.
| 03
Time Management & Prioritization
Able to manage competing priorities in high-pressure environments. Delivered concurrent client deliverables and internal initiatives while balancing full-time work and study. Known for consistent on-time delivery, milestone focus, and strategic delegation when leading sprints or multi-phase projects.
| 04
Agile & Cross-Functional Collaboration
Experienced in Agile delivery models including Scrum and Kanban. Comfortable collaborating across product, QA, design, DevOps, and business teams. Regularly run sprint ceremonies, backlog grooming, and Jira/Confluence-based tracking to ensure alignment and delivery velocity.
| 05
Problem Solving & Adaptability
Known for rapidly analyzing unfamiliar codebases, debugging production issues under pressure, and implementing robust, long-term fixes. Thrives in ambiguous situations by taking initiative, asking the right questions, and driving clarity in both team and system contexts.
Expertise
Proficient in building end-to-end applications using modern frontend frameworks (React, Angular, Svelte, Astro) and backend stacks (.NET 8, Flask, Node.js). Experienced in architecting modular, reusable, and testable components across the UI and API layers. Skilled in delivering pixel-perfect UIs and highly-performant backends with clean architecture principles.
Hands-on experience designing, deploying, and managing cloud-native applications on Azure and AWS. Proficient with Infrastructure-as-Code (Terraform, Bicep), containerization (Docker, ECS Fargate), and secure CI/CD automation (GitHub Actions, Azure DevOps). Delivered highly available, scalable systems with zero-downtime releases and 70% deployment effort reduction.
Built enterprise-ready platforms with zero-trust principles, RBAC, and secure token-based authentication. Designed and implemented organization-wide secrets management using Azure Key Vault and AWS Secrets Manager, eliminating plaintext credentials across cloud environments.
Developed and optimized complex ETL pipelines, RESTful APIs, and third-party integrations (Xero, Lightspeed, Hello Club, Power BI). Automated data ingestion from Excel, SharePoint, and custom formats, reducing processing time by up to 80% and cutting manual effort significantly.
Engineered test-driven development pipelines using xUnit, Moq, and containerized CI workflows. Integrated security scanning, code quality checks, and deterministic test runs into GitHub Actions and Azure DevOps. Contributed to internal tooling and test frameworks to reduce post-release bugs by 50%.
Led sprint ceremonies, estimation sessions, and stakeholder workshops. Coordinated delivery across developers, QA, analysts, and clients using Agile/Scrum methodologies. Produced onboarding docs, architectural diagrams, and delivery plans to align cross-functional teams and maintain delivery velocity.
About
I'm a Senior Software Engineer with over 5 years of experience architecting and delivering secure, cloud-native applications for healthcare, fintech, and enterprise domains. I’m passionate about designing resilient systems, optimizing developer experience, and shipping high-impact software.
I specialize in .NET 8, C#, React, Python, and cloud platforms like Azure and AWS. I’ve led full-stack and DevOps initiatives involving infrastructure as code (Terraform, Bicep), secret rotation governance, RBAC design, and real-time analytics. I thrive in fast-paced environments where security, performance, and scalability are top priorities.
Connect with Me
I'm always interested in new opportunities and collaborations. Feel free to reach out if you have questions, want to discuss potential projects, or simply connect. I look forward to hearing from you!