I’m Harsh, a software engineer who loves turning complex, large-scale problems into elegant, resilient systems.

I started my career curious about how millions of people stream, interact, and trust large platforms every day — and that curiosity has shaped my journey:

• From hacking together IoT projects with Alexa in my early days,
• To re-architecting Amazon Music’s WebPlayer at 1M TPS scale,
• To filing a patent on intelligent caching & DDoS resilience.

What excites me most is building systems that feel invisible yet powerful: the kind that make products smoother, developers faster, and infrastructure cheaper.

Outside work, you’ll usually find me:

• Writing about system design, developer experience, and infra hacks on Medium
• Building experimental tools (like local-function-proxy and load-shedder)
• Brainstorming startup ideas that merge technology, scalability, and real-world impact

• 📝 Patent Filed (2025): Advanced Caching Service for Dynamic Content Delivery of Videos → bringing intelligence to CDNs & DDoS mitigation
• ⚡ Performance at Scale: Optimized Amazon Music Web to handle 1M TPS while cutting infra costs by 82%
• 🛠 Open Source Creator:
  • @amazon/local-function-proxy – lightweight local proxy for AWS Lambda-style dev
  • load-shedder – middleware to keep systems alive under heavy load
• ✍️ Tech Writer: Articles on latency reduction, Kubernetes CI/CD, serverless structuring, and intelligent caching
• 🤝 Mentor & Builder: I enjoy sharing ideas with other engineers, startups, and teams about scalability and developer experience

I’m currently working on reshaping internet security by proposing a new approach to mitigate cross-site scripting (XSS) vulnerabilities.
This work is being put forward to the W3C as part of a standards discussion, and you can follow the journey in my explainer repo:

👉 XSS Mitigation Explainer (W3C Proposal)

• Languages: JavaScript/TypeScript, Python, Go, Java, Swift, Kotlin
• Infra & Cloud: AWS (Lambda, ECS, CloudFront, DynamoDB), GCP (GKE, Datastore), Kubernetes, Docker, IaC (CDK/Terraform)
• Specialties: Distributed systems, CDN optimization, DDoS mitigation, developer productivity tooling, performance engineering

1. Beyond Static: Intelligent Caching & DDoS Mitigation with AWS CloudFront
2. Reducing User-Perceived Latency in iOS Using View Lifecycle
3. Setup Kubernetes CI/CD for Backend Applications
4. Structuring Services for AWS Lambda with Serverless

I see myself not just as an engineer, but as a builder of systems that empower innovation:

• Helping businesses scale without breaking the bank
• Reducing CO₂ by optimizing infra efficiency
• Enabling developers to move faster with the right tools

My ultimate goal? To keep pushing the boundaries of secure, scalable infrastructure while inspiring others to do the same.

• 📧 Email: harsh.singhal040@gmail.com
• 💼 LinkedIn: linkedin.com/in/harsh-singhal
• 📝 Medium: harsh-singhal.medium.com
• 🤝 IEEE: Collabratec Profile

⭐️ “I love building systems that are robust enough to withstand a 1M TPS DDoS attack, yet simple enough that developers enjoy working with them.”