4 Common Challenges Every Backend Team Faces (And How Interns Can Tackle Them)

Alibaba's 2019 campus internship recruitment has begun, and to help incoming backend interns we compiled an article titled “Four Problems Every Technical Team Encounters,” presenting practical perspectives on typical backend challenges.

How to Predict Capacity for Business Peaks

Early approaches relied on load testing in development environments, but differences between test and production machines make accurate capacity prediction difficult. The key question is: what is the maximum peak capacity?

Effective practice is to conduct full‑link load testing in the production system, allowing real traffic to validate each stage’s performance, capacity, and stability.

How to Improve System Stability

Operational events can generate massive traffic spikes. Besides full‑link load testing, building high‑availability safeguards is crucial, involving components such as load balancers, configuration centers, service routing, messaging, containers, rate limiting, and fallback mechanisms.

When traffic exceeds capacity, rate‑limiting can temporarily block excess requests, preserving overall platform stability.

How to Enhance Monitoring Capabilities

Distributed systems excel in collaboration, scalability, and fault tolerance, yet monitoring, operations, and diagnostics remain challenging. A comprehensive full‑link tracing system is needed to diagnose call‑chain issues across numerous micro‑services and containers.

Such a platform‑wide, cross‑domain, 360° monitoring solution dramatically reduces recovery time when problems arise.

How to Boost Development Efficiency

Development efficiency varies by role and scenario. Several tools are highlighted for backend engineers:

Cloud Toolkit – an IDE plugin for rapid development, testing, diagnostics, and one‑click deployment to ECS, EDAS, or Kubernetes.

MacOS Spotlight and Alfred – powerful search utilities for files, emails, and commands.

Diagramming tools – essential for creating architecture diagrams that convey system structure and evolution.

JSON‑handle – a JSON viewer/editor with tree‑style visualization and live editing.

Java code‑style scanning plugins – integrate PMD rules into IDEs to enforce coding standards, reduce bugs, and improve code quality.

Beyond ready‑made tools, improving a team's overall efficiency may require building or refactoring internal systems such as collaboration platforms or service‑oriented architectures, fostering an efficiency mindset that benefits future work.

This content partially originates from senior Alibaba middleware product expert Dan Chen’s internal sharing “Alibaba Middleware Cloud Practice.”