A code editor showing a Java cache implementation with architecture diagrams and terminal output.

Build a Google Guava-like Cache From Scratch: A Portfolio Project That Signals Systems Skill

A step-by-step build guide for a from-scratch caching library inspired by Google Guava’s cache. You’ll implement LRU eviction, TTL expiration, concurrent access, and observability — a CV project that signals real distributed-systems engineering skill.

September 17, 2026 · 10 min · 1956 words · martinuke0
Illustration of a circuit breaker protecting a microservice.

Architecting Resilience with Resilience4j Circuit Breakers and Retry Policies at Scale

A practical guide to wiring Resilience4j circuit breakers and retry strategies into Java services, ensuring graceful degradation under failure.

September 14, 2026 · 7 min · 1468 words · martinuke0
Abstract visualization of tri-color object graph with moving collector threads.

Implementing Concurrent Garbage Collection with Tri-Color Marking: From Theory to Production-Ready JVM Tuning

How modern concurrent collectors like G1 and ZGC use the tri-color invariant to do most of their work without stopping your threads, and the JVM flags you actually need in production.

September 3, 2026 · 11 min · 2154 words · martinuke0
Abstract visualization of event streams merging and branching through nodes, representing a Kafka Streams topology.

Designing Kafka Streams Topologies: A Deep Dive into Real-Time Stream Processing for Production

How to design Kafka Streams topologies that survive real production workloads — covering topology shapes, state store sizing, exactly-once semantics, and the failure modes that bite at scale.

September 2, 2026 · 11 min · 2284 words · martinuke0
Illustration of a heap with colored nodes representing tri‑color marking.

Implementing Concurrent Garbage Collection: Tri-Color Marking Architecture and Production Heap Management Strategies

Explore how tri‑color marking powers low‑pause concurrent collectors, see concrete architecture diagrams, and learn production‑grade heap management tricks.

May 30, 2026 · 6 min · 1269 words · martinuke0
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