About withsoon
Interactive system design and data-engineering interview prep for candidates who want interview-ready answers, diagrams, and follow-up handling.
What is this?
withsoon started as a personal set of interview prep notes — real system design walkthroughs, production-style data pipeline diagrams, and Q&A banks built while preparing for senior engineering roles.
The goal is simple: make the best interactive system design and data-engineering prep platform, not just another blog. Every guide, diagram, and question bank is built around what actually gets asked in senior backend, data engineer, and AI engineer interviews.
Who is it for?
Backend / System Design
Preparing for distributed systems, API design, and architecture interviews at FAANG or high-growth companies.
Data Engineer
Kafka, Spark, Airflow, dbt, SQL — from local setup to production patterns and interview Q&A banks.
AI / LLM Engineer
RAG pipelines, vector databases, agents, fine-tuning, and prompt engineering for AI-focused roles.
Content standards
- →Every system design page includes: requirements, capacity estimates, APIs, data models, flows, failure scenarios, trade-offs, and a 10-minute answer
- →Every Q&A article includes: expected answer, senior-level answer, common mistake, and follow-up questions
- →Setup guides include exact versions, Docker commands, verification steps, and a last-verified date
- →No empty categories — sections only appear when real content exists
- →No "Top 50" titles unless all 50 items are actually present
Built by
withsoon is built and maintained by Prasoon Parashar — a data and backend engineer who got tired of scattered, incomplete, and theory-heavy interview prep resources.
Suggest a correction
Found an error, outdated information, or a missing edge case? Please open an issue on GitHub — corrections are always welcome.
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