44 free, in-depth guides on technical interviews, system design, company placement rounds and building a career in the AI era.
Reviewed by the Intervio engineering team · last updated October 6, 2026
The Intervio blog is a free library of 44 interview preparation guides for software engineers. It covers technical and DSA rounds, system design, behavioural interviews, engineering tech stacks, and company-specific placement processes for TCS, Infosys, Wipro, Accenture, Cognizant, Capgemini and FAANG. Every guide is free to read with no account, and each one pairs with a matching AI voice mock interview.
The definitive software engineering interview question bank. Spoken answers, code patterns, and architectural trade-offs across OOPs, DSA, System Design, SQL, and STAR behavioral rounds.
Real-world developer benchmark comparison and Reddit sentiment analysis of late-2026 frontier models: Gemini 4 Argon, Claude Opus 5.5, and GPT-6 Astra, and how tech interviews evolved.
Real-world developer benchmark comparison and Reddit sentiment analysis of late-2026 frontier models: GPT-6 Astra, Claude Opus 5.5, Claude Fable 5, and Gemini 4 Argon.
Reddit analysis from r/ExperiencedDevs: the collapse of uninspected AI code, the slopsquatting security crisis, and why 2026 technical interviews test systems defense.
Master GMP scheduler internals, channel synchronization, Tricolor GC, escape analysis, interfaces, gRPC, and microservice resilience in 2026 technical rounds.
The definitive guide to cracking live technical interviews with AI coding tools. Learn the new grading rubric, TDD with AI, avoiding prompt looping, and vocalizing code.
Master stdio vs SSE transports, ReAct loops, LangGraph state machines, Pydantic tool schemas, infinite loop termination guards, and sandboxing in 2026 interviews.
Analyzing 3,000+ Reddit comments across r/cscareerquestions and r/ExperiencedDevs: the missing bottom rung, rubber-stamp developers, and how tech interviews evolved.
Why AI coding assistants are slowing down some engineering teams — review fatigue, cognitive load taxes, configuration drift, and the new 2026 interview bar.
Head-to-head comparison of the three dominant frontier models — benchmarks, agentic capabilities, cybersecurity tiers, and what they mean for software engineer interviews.
Complete preparation roadmap for Cognizant recruitment, core OOPs, SQL queries, coding, and TR questions.
Master Capgemini pseudocode bitwise logic, technical interview questions, OOPs, DBMS, and HR scenarios.
Apache Spark internals, broadcast joins, data skew salting, advanced SQL window functions, and Delta Lake.
The most frequently asked React.js interview questions from hooks to performance — with detailed answers and tips.
How Perplexity, ChatGPT Search, Gemini & Claude rank content, information gain scores, and llms.txt.
Coordinate reference systems, PostGIS spatial indexing, Uber H3 hex grids, and satellite foundation models.
Distributed web crawlers, inverted indexing, BM25, hybrid vector search, SSR prerendering, and Core Web Vitals.
Spring 6 / Boot 3, Bean lifecycle, Hibernate N+1 resolution, Resilience4j, and Java 21 Virtual Threads.
Ninja vs Digital vs Prime requirements, core Python theory, OOPs, decorators, GIL, and SQL coding.
HTTP methods, idempotency, status codes, REST vs GraphQL vs gRPC, authentication (JWT), and rate limiting.
Online assessments, live coding rounds, managerial behavioral scenarios, and HR round negotiation tips.
16 essential DSA patterns, 4-phase system design framework, company rubrics for Google, Meta, and Amazon.
Kubernetes control plane, debugging CrashLoopBackOff, Docker multi-stage builds, Terraform, and CI/CD GitOps.
RAG pipelines, Cross-Encoder re-ranking, LoRA/QLoRA fine-tuning, KV caching, vLLM, and agentic workflows.
Window functions (RANK, DENSE_RANK), CTEs, query optimization, indexing, ACID transactions & execution plans.
Master Python interviews with 50+ questions covering OOP, decorators, generators, GIL, asyncio, and data structures.
From closures and the event loop to async/await and ES6+ — all the JS interview concepts you need to master.
Write an ATS-friendly software engineer resume that beats applicant tracking systems and impresses recruiters.
Wipro NLTH exam pattern, 30-day roadmap, top technical & HR interview questions, and Turbo vs Project Engineer guide.
Analyzing the breakout incident, autonomous agent vulnerability vectors, and how system design rounds test AI security.
Inside the SK Group + NVIDIA $500B AI factory deal and how software engineers can master hardware-aware system design.
Complete guide to TCS NQT exam pattern, 30-day preparation roadmap, top 15 technical questions & HR secrets.
Master pseudo-code tracing, SQL queries, Accenture communication tests, and top technical interview questions.
Data structures, system design, behavioral questions — everything you need to ace your next tech interview.
We compare AI-powered mock interviews with traditional human practice sessions to find what works best.
Master scalability, databases, and architecture patterns to nail your system design round.
Learn how to structure your answers using Situation, Task, Action, and Result with real-world examples.
Everything you need to master Data Structures & Algorithms for placement rounds — patterns, practice plans, and tips.
Learn the perfect Present-Past-Future framework to structure your self-introduction professionally in 90 seconds.
Curated Angular questions covering Standalone Components, Signal Reactivity, and advanced RxJS stream pipelines.
A realistic analysis of AI coding automation, macro-economic industry shifts, and developer job security in 2026.
Explore the shift from simple text chatbots to autonomous multi-step agents and how they change coding workflows.
Analyze the productivity paradox of AI code generation and why verification and review are critical engineering skills.
Common questions about the Intervio blog and how to use it to prepare.
Yes. Every guide on the Intervio blog is free to read, with no account, paywall or email gate. The collection currently contains 42 guides covering technical interviews, system design, behavioural rounds, engineering tech stacks and company placement processes.
The blog covers technical and DSA rounds, system design, behavioural and STAR-method answers, frontend (React, Angular, JavaScript), backend (Node.js, Java, Spring Boot, REST APIs), databases and SQL, DevOps and Kubernetes, data engineering, AI and machine learning, plus company-specific placement guides for TCS, Infosys, Wipro, Accenture, Cognizant, Capgemini and FAANG.
New guides are published regularly and existing guides are reviewed against the current hiring market. The article list is ordered newest first, and the collection was last reviewed in October 2026.
No account is needed to read any guide. To run a voice mock interview with Sophia you can start free — 5 complete sessions are included and no credit card is required.
Read the guide for your target role first, then practise the same topic out loud with the AI interviewer. Speaking the answer is what exposes the gaps in your explanation; reading alone does not. Most candidates pair one guide with one 20 to 30 minute mock session.