Tech Interview Preparation for Senior Developers

Master backend, frontend, architecture, distributed systems, DevOps, and data fundamentals — with clear, practical guides.

ZeeCod is a modern platform designed to help software engineers prepare technical interviews efficiently. You’ll find interview-ready explanations and checklists for .NET, Angular, System Design, Microservices, DevOps, and SQL.

Explore Tracks How to Start

Why ZeeCod

.NET Interview Questions & Performance

CLR, memory management, async/await, threading, performance, ASP.NET Core.

Prepare .NET technical interviews covering CLR internals, garbage collection, async await patterns, and performance tuning.

Open .NET Guide

Angular Interview Guide & RxJS

Change detection, RxJS, signals, state management, and performance.

Prepare Angular interviews with RxJS, change detection strategies, state management and performance best practices.

Open Angular Guide

Clean Architecture & Design Patterns

Clean Architecture, Hexagonal, DDD, CQRS, Events, Outbox patterns.

Learn software architecture interview topics including clean architecture, hexagonal design, DDD, CQRS and event-driven patterns.

View Architecture

Microservices Interview Preparation

Service boundaries, async messaging, resilience, Docker, observability.

Microservices interview guide covering service boundaries, messaging, reliability patterns, Docker basics and observability.

Explore Microservices

Python for Data & Automation

Pandas, NumPy, data processing, scripting for engineers.

Python interview and fundamentals track focusing on data processing, pandas, numpy and automation scripts.

Open Python Track

DevOps & CI/CD Interview Guide

Docker, CI pipelines, environments, deployments, monitoring.

DevOps interview preparation covering Docker, CI/CD pipelines, deployment strategies and monitoring fundamentals.

Open DevOps Guide

System Design Interview Preparation

Scalability, caching, queues, CAP theorem, consistency trade-offs.

System design interview track covering scalability, caching, queues, CAP theorem, and consistency models.

Study System Design

SQL & Databases Deep Dive

Indexes, query plans, transactions, PostgreSQL & SQL Server.

SQL interview preparation covering indexing, query plans, transactions, PostgreSQL and SQL Server fundamentals.

Open Database Guide

Behavioral & Soft Skills (STAR)

Senior interviews, leadership, communication, STAR answers.

Behavioral interview preparation with STAR method, leadership principles, communication and senior-level expectations.

Prepare Behavioral

Get Started

  1. Pick a track (e.g., .NET or System Design) and follow the roadmap.
  2. Study the “pitfalls” sections and practice explaining trade-offs out loud.
  3. Do timed drills: 30–45 minutes per topic, then recap in your own words.