Rahul K (@rahulk27)

Cost Awareness: Building Systems That Know What They Cost

In cloud-native and highly scalable architectures, performance and speed often take the spotlight. But behind every request, background job, or extra compute cycle is a price tag—sometimes small, sometimes unexpectedly large. Cost Awareness is about ...

Jul 16, 2025 · 9 min readengineeringtheinvisible.dev

Using CompletableFuture for Asynchronous Processing in Spring Boot

In application development, responsiveness and scalability are paramount. While Spring Boot provides a robust framework for building microservices, handling long-running or I/O-bound tasks synchronously can block resources and degrade performance. On...

Jul 3, 2025 · 6 min readengineeringtheinvisible.dev

Caching Strategy: Designing for Speed without Compromising Truth

Modern software users expect speed — not just functionality. Whether it's loading product details, retrieving a dashboard, or populating a feed, response time often makes or breaks user experience. Caching plays a vital role in making systems feel re...

Jun 30, 2025 · 8 min readengineeringtheinvisible.dev

Data Retention: Designing for the Right Memory Span

Every digital system forgets eventually. The question is — when, what, and how. In a world governed by evolving compliance frameworks, rising storage costs, and growing user expectations around privacy, how long data is kept isn’t a backend detail. I...

Jun 28, 2025 · 8 min readengineeringtheinvisible.dev

Data Privacy: Designing with Dignity in Mind

In a world where nearly every digital interaction leaves a trace, ensuring privacy isn’t just a regulatory checkbox—it’s a matter of respect. People trust their data with your system, sometimes without fully realizing the depth of what they’ve shared...

Jun 26, 2025 · 9 min readengineeringtheinvisible.dev

Rahul K

About

Available for

Rahul K's blogs

Cost Awareness: Building Systems That Know What They Cost

Using CompletableFuture for Asynchronous Processing in Spring Boot

Caching Strategy: Designing for Speed without Compromising Truth

Data Retention: Designing for the Right Memory Span

Data Privacy: Designing with Dignity in Mind

Rahul K

About

Available for

Rahul K's blogs

Cost Awareness: Building Systems That Know What They Cost

Using CompletableFuture for Asynchronous Processing in Spring Boot

Caching Strategy: Designing for Speed without Compromising Truth

Data Retention: Designing for the Right Memory Span

Data Privacy: Designing with Dignity in Mind

Rahul K

About

Available for

Rahul K's blogs

Cost Awareness: Building Systems That Know What They Cost

Using CompletableFuture for Asynchronous Processing in Spring Boot

Caching Strategy: Designing for Speed without Compromising Truth

Data Retention: Designing for the Right Memory Span

Data Privacy: Designing with Dignity in Mind

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Rahul K

About

Available for

Rahul K's blogs

Cost Awareness: Building Systems That Know What They Cost

Using CompletableFuture for Asynchronous Processing in Spring Boot

Caching Strategy: Designing for Speed without Compromising Truth

Data Retention: Designing for the Right Memory Span

Data Privacy: Designing with Dignity in Mind