Turning curiosity into real products, with AI.
MelonTech.AI is a personal playground, portfolio, and collection of projects built by one curious engineer with the help of modern AI.
The story & the person behind it
Two sides of MelonTech.AI — the studio, and the engineer building it.
Hi, I'm Jack — the creator of MelonTech.AI.
MelonTech.AI is a personal playground, portfolio, and collection of projects built with the help of modern AI technology. As a one-person team, I'm fascinated by how AI can amplify creativity, accelerate development, and turn ideas into real products faster than ever before.
This website showcases apps, experiments, tools, and concepts I've built to explore what's possible when human curiosity meets artificial intelligence. Some projects are practical, some are experimental, and some simply exist because I thought they'd be fun to create. My hope is that along the way, they can also be useful, inspiring, or valuable to others.
MelonTech.AI is proof that individuals can now build things that once required entire teams. The technology is evolving rapidly, and we're only beginning to discover what's possible.
If you find something interesting, have an idea you'd like to explore, or simply want to connect, I'd love to hear from you. Let's discover new possibilities together.
Jack (Encheng Zhang)
Engineering Leader · Cloud & Security Architect · Solo BuilderDynamic engineering leader with extensive experience specializing in cloud solutions and CI/CD methodologies. Proven track record architecting scalable systems and mentoring cross-functional teams — with deep expertise across AWS, Azure, Kafka, and enterprise security.
View LinkedIn ProfileSkills & Tools
Experience
- Led and mentored cross-functional engineering teams, setting priorities and managing end-to-end project workloads.
- Designed an enterprise-grade CI/CD pipeline for mobile app security scanning with automated compliance reporting and audit evidence management.
- Built scalable, secure cloud solutions using Terraform, AWS Lambda, S3, ECS, and API Gateway.
- Implemented a Kafka webhook for stream processing of automated audit evidence, improving data accessibility.
- Created daily Python jobs to extract, parse, and aggregate compliance data from Splunk.
- Developed an internal Python utility package published to Artifactory for seamless cross-team reuse.
- Aggregated data from Azure Table Storage using dynamic query selectors for real-time analytics.
- Developed a Customer Field API back-end to capture user touchpoint data via URL parameters.
- Built back-end importers and exporters for data mining and migration tools.
- Developed a Meeting Service using Go and AWS cloud infrastructure to improve service reliability.
- Led development of a profile service in C# integrated with existing back-end architecture.
- Designed software solutions for expense management and travel integration.
- Introduced Multi-Factor Authentication in SQL Server Management Studio 17.2.
- Led Azure security and Microsoft SQL Database security initiatives to enhance data protection.
- Developed Skype messaging integration for Windows Phone with photo management features.
Education
Research & Projects
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UW Web Programming Teaching Assistant (2013–2015) — Led quiz and lab discussion sections, held office hours, and graded assignments at the University of Washington.
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ATLAS Inner Detector Alignment — LHC (CERN Accelerating science) ↗ (2013–2014) — Used C++ and Python to simulate particle movement in 3D space and build alignment software for optimizing travel-path calculations. -
UW Ubiquitous Computing Lab ↗ (2012–2014) — Maintained lab servers and databases, managing POST requests and status updates across a global network of testing devices.
Certifications
- AWS Certified Cloud Practitioner
- Certified Information Security Manager (CISM)
Projects & Experiments
A growing showcase of things I've built along the way. Click any project to try it.
SimplePDF
A full-featured, cross-platform PDF editor. View, annotate, sign, merge and compress for free, plus AI OCR, file conversion (PDF ↔ Word/PowerPoint), URL → PDF, and cloud storage. Native iOS/Mac apps share one backend, login, and subscription.
Solid
A real-estate investment analyzer. Search any US address for full property records, value & rent estimates with comps on a map, live cash-flow modeling, 30-year projection charts, an AI-written verdict, and a downloadable PDF report.