What’s a reliable way to sync offline edits across multiple devices?
I'm building a personal media tracker with clients on Linux and Android, plus an always-online server that acts as a backup and synchronization point. Each client should work…
distributed systems
What’s a reliable way to sync an offline media tracker across devices?
I'm building a personal media tracker with clients on Linux and Android, plus an always-online server that acts as a backup. Each client should work offline and synchronize…
How do you implement a circuit breaker across multiple service replicas?
In a single Node.js process, a circuit breaker can track failures with a ring buffer, threshold, and timestamps. But when the same service runs on twenty replicas, each…
What’s a good project for learning Docker and microservices?
I'm trying to learn Docker, Docker Compose, and Docker Swarm through a practical project. I'd like to build an application from several cooperating services, then containerize the entire…
What Should I Prepare for a Mid-to-Senior Java Backend Interview?
I have a backend developer interview coming up in a few days and would like to focus my preparation on questions that demonstrate solid mid-to-senior-level knowledge. Topics I…
What should I prepare for a mid-to-senior Java backend interview?
I have a backend developer interview coming up in a few days and want to focus on the topics that best demonstrate solid mid-to-senior-level knowledge. I'm considering sync…
Which MS specialization fits a Java and backend engineering background?
I'm considering pursuing a master's degree and want to choose a specialization that builds on my software engineering experience rather than making it irrelevant. Most of my background…
How Should I Break Down a Complex Video-Streaming Backend Project?
I'm an intern at a small startup. Over the past three months, I've been learning Java and Spring Boot and building small CRUD applications. I'd now like to…
Which MS specialization fits a Java and backend engineering background?
I'm considering pursuing a master's degree and want to choose a specialization that builds on my software engineering experience rather than making it irrelevant. My main experience is…
How should I break a Java video-streaming project into manageable stages?
I'm an intern at a small startup and have spent the last three months learning Java and Spring Boot by building small CRUD applications. I'd now like to…
Is Designing Data-Intensive Applications the Right Book for Learning Hosting, APIs, and Updates?
I recently decided that I want to build a complete project instead of only running code locally, but I'm unsure where to begin with deployment and communication between…
Is Designing Data-Intensive Applications the Right Book for Learning Hosting and Deployment Basics?
I recently decided that I want to build a complete project instead of only experimenting locally. Before I start, I'm trying to understand a few practical concepts: how…
How Can I Find Guidance on Azure and Distributed Systems Architecture?
I'm a .NET developer with about four years of experience, mostly working on traditional ASP.NET MVC applications. I recently joined a new company and was assigned to a…
How Can I Find Guidance While Designing My First Azure Distributed System?
I'm a .NET developer with about four years of experience, mostly building traditional ASP.NET MVC applications. I recently joined a company where I was placed on a new…
How Can I Grow From DevOps Implementation to Infrastructure at Scale?
I have about four years of experience as a DevOps engineer—two years at a large company and two at a startup. I've worked with AWS, GCP, Terraform, Kubernetes,…
What skills are actually expected from a junior programmer?
A friend told me that becoming a junior programmer mainly requires three things: high-school-level math, the ability to build a simple application such as a to-do app while…
When should intermittent service timeouts become a reliability problem?
A couple of our internal services occasionally time out under load. They retry with backoff, usually recover, and users generally don't notice. The problem is that this has…
Redis or Infinispan for Non-Sticky Tomcat Sessions Across Three Availability Zones?
I'm evaluating session storage for a Tomcat deployment spread across three availability zones, where requests may reach different application instances. Each HTTP session is essentially a 40–100 KB…
How deeply should a software engineer understand the JVM, compilers, and concurrency?
I understand the basic story that Java source is compiled into bytecode and that the JVM eventually executes or JIT-compiles that bytecode into machine instructions. Beyond that, I…
How do you reproduce intermittent production bugs that depend on system state?
A checkout service was randomly returning 500 errors on the same endpoint several times a day. The failures happened during both peak traffic and quiet periods, and the…