Overall Progress
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0 / 16 skills complete
01
Foundation
The non-negotiable base. Without this, nothing else sticks.
Junior Level
Computer Science Basics
Binary, memory, how CPUs work, compilation vs interpretation. The mental model that makes everything else click.
Version Control (Git)
Branching, merging, rebasing, pull requests. Used every single day — master it early and completely.
Programming Fundamentals
Variables, functions, loops, OOP and functional concepts. Language-agnostic thinking — not just syntax.
CLI & Linux Basics
File system, permissions, pipes, grep, ssh. Every professional environment runs on Linux.
02
Core Dev
The skills that define a competent developer. Most engineers stop here.
Mid Level
Data Structures & Algorithms
Arrays, hashmaps, trees, graphs, sorting, dynamic programming. Focus on the 20% used in 80% of real problems and interviews.
📄 Get Big-O Cheatsheet $7
Databases & SQL
Relational vs NoSQL, query optimization, indexing, transactions. Data is the center of most applications.
APIs & HTTP
REST, GraphQL, HTTP methods, auth patterns (JWT/OAuth), status codes and error handling.
Testing Fundamentals
Unit, integration, E2E. TDD mindset. The skill most developers skip and every senior wishes they'd learned earlier.
03
Advanced
What separates senior engineers from mid-level. Most promotions hinge on this phase.
Senior Level
System Design
Scalability, load balancing, CDNs, microservices, message queues, CAP theorem. The single highest-ROI skill for senior interviews.
📄 Get System Design Kit $24
Architecture Patterns
MVC, Clean Architecture, Domain-Driven Design, SOLID principles. How to structure code that scales over years.
Performance & Caching
Profiling, N+1 queries, Redis, CDN strategy, lazy loading. How to make slow things fast.
Security Fundamentals
OWASP top 10, SQL injection, XSS, CSRF, secrets management. Every developer is also a security engineer.
04
Senior & Leadership
The 20% of skills that account for 80% of senior-to-staff promotion decisions.
Staff Level
Technical Leadership
Code reviews, mentoring, tech specs, driving alignment. The leverage multiplier — your output through others.
📄 Get Senior Dev Roadmap $19
Architecture & Scalability
Distributed systems at scale. Designing for 10x, 100x growth. The conversations that matter at the staff+ level.
Engineering Culture
Hiring, onboarding, incident reviews, documentation culture, team norms. How great teams run.
Technical Communication
Writing RFCs, communicating to non-technical stakeholders, negotiating technical debt. The skill that gets engineers promoted.
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