Late-Career Pivot: Engineering Management vs IC at 50+
4 min read The choice between engineering management and senior IC tracks is one of the most consequential career decisions for engineers in […] Read article
Returnship & Late-Career
Returnship & Late-Career
Returning to Tech After Travel or a Sabbatical: Telling the Story
4 min read The 9–18-month sabbatical or travel break is a particular kind of career gap. Unlike caregiving or layoff returns, the engineer Read article
Frontend Engineering
Build a Custom Select / Dropdown That Beats Native
3 min read “Build a custom select” is a frontend machine-coding question that looks simple and is genuinely hard. The native <select> element Read article
Frontend Engineering
Frontend Authentication 2026: SAML, OIDC, OAuth, and Passkeys
4 min read Authentication is one of the topics where senior frontend engineers are expected to know more than the basics. Interviews increasingly Read article
Frontend Engineering
Build a Bottom Sheet Component for Mobile Web
3 min read “Build a bottom sheet” is a mobile-web frontend question that punishes shortcuts. Apple Maps, Apple Music, Slack iOS, Linear iOS Read article
Frontend Engineering
Frontend System Design: Build Linear / Project Management UI
3 min read “Design Linear” is a senior+ frontend system-design prompt that captures the modern SaaS-app shape — fast keyboard-driven UI, offline-first sync, Read article
AI-Era Interviewing
Interviewing for AI Wrapper Series A Companies in 2026
4 min read “AI wrapper” became a 2024 pejorative for products that are mostly an LLM call wrapped in a UI. By 2026 Read article
AI-Era Interviewing
AI Safety Engineering Interview Topics 2026
3 min read “AI safety engineer” is a 2026 specialty that did not exist as a job title in 2020. The work spans Read article
AI-Era Interviewing
Transitioning from Classic ML to LLM Engineering: The 2026 Move
3 min read Many of the strongest classic ML engineers in 2026 are weighing whether to stay in their current specialty (ranking, recsys, Read article
AI-Era Interviewing
Domain Expertise vs AI Fluency: The 2026 Senior Interview Tradeoff
4 min read Senior engineering interviews in 2026 surface a real tradeoff that did not exist in 2022: the candidate with 15 years Read article
Mobile System Design
Design a Mobile Workout / Fitness Coaching App
3 min read “Design a fitness coaching app” is the structured-workout cousin of the Strava-style activity-tracking question. Peloton App, Nike Training Club, Apple Read article
Mobile System Design
Design a Mobile Personal Finance App: Mint-Style Aggregation
3 min read “Design Mint” is a fintech-flavored mobile system design prompt that combines bank-data aggregation, transaction categorization, budgeting UX, and the strict Read article
Mobile System Design
Design a Mobile Online Course App: Coursera-Style Learning
2 min read “Design an online course app” is a content-and-progress mobile system design prompt — Coursera, Udemy, Khan Academy, Duolingo, Brilliant. The Read article
Mobile System Design
Design a Mobile Translation Camera: Google Lens-Style Real-Time
3 min read “Design a translation camera” is a vision-and-AR mobile system design prompt — Google Lens / Translate, Apple’s Live Text + Read article
Frontend Engineering
Build a Code Editor: CodeMirror, Monaco, and the Tradeoffs
3 min read “Build a code editor” is the meta-version of the rich-text-editor question — the same content-editable challenges plus syntax-aware features (highlighting, Read article