Better ProgrammerFrom Writing Code to Leading Change
A practical course for experienced developers who want stronger foundations, better engineering judgment, and the ability to lead reliable product changes. Every module starts with individual concepts, explains how they work, and only then combines them into real systems.
The learning path
Understand the parts before designing the whole
You will first learn how requests, data, performance, and failures work as separate concepts. Only after those foundations are clear will you combine them into delivery systems, technical decisions, and leadership practice.
01
Foundations
Understand requests, data, performance, and failure one part at a time.
02
Engineering
Build clear contracts, tests, delivery loops, and production feedback.
03
Judgment
Choose proportionate complexity and make risk visible.
04
Leadership
Connect technical work to product outcomes and team capability.
Each chapter explains what a component is, why it exists, and how it works before it is used inside a larger design.
The course starts with request, data, and delivery foundations. Later modules combine those ideas into reliability and leadership decisions.
Scenarios, quizzes, exercises, and the capstone turn concepts into artifacts you can apply in an engineering role.
Course outline
Foundations → Engineering practice → Judgment → Leadership
Foundations
After this module
Explain how a browser finds a service, exchanges secure HTTP messages, reaches application code, and receives a response.
- 01Client, Server, Request, and Response
- 02DNS: Names to Addresses
- 03HTTP and HTTPS with TLS
- 04Application Servers and APIs
- 05State and Statelessness
- 06Trace One Request End to End
After this module
Choose and explain practical data models, indexes, transaction boundaries, consistency behavior, replication, and partitioning strategies.
- 01Data Models and Storage Basics
- 02Relational Tables and Keys
- 03Queries and Indexes
- 04Transactions and ACID
- 05Consistency
- 06Replication
- 07Sharding and Choosing Storage
Recommended first: system-foundations
Open this moduleAfter this module
Use latency and throughput evidence to locate bottlenecks, evaluate scaling, caching, and CDN options, and produce a measured performance plan.
- 01Latency and Throughput
- 02Percentiles and Bottlenecks
- 03Vertical Scaling
- 04Horizontal Scaling and Load Balancers
- 05Browser and Application Caching
- 06Content Delivery Networks
- 07Build a Measured Performance Plan
Recommended first: data-storage
Open this moduleCore Engineering
After this module
You will be able to model failures, set safe deadlines and retries, design idempotent writes, use queues honestly, and build a complete reliability plan for one user journey.
- 01Failure Models: Name What Can Go Wrong
- 02Timeouts: Stop Waiting Forever
- 03Retries and Exponential Backoff
- 04Idempotency: Make Repeated Requests Safe
- 05Circuit Breakers: Stop Calling a Failing Dependency
- 06Graceful Degradation: Preserve the Core Journey
- 07Queues and Workers: Move Work Out of the Request
- 08Combine the Tools into a Reliable Async Workflow
Recommended first: performance-scale
Open this moduleAfter this module
You will be able to choose maintainable boundaries, design a balanced test strategy, review changes effectively, and connect CI/CD to real production health.
- 01Contracts and Interfaces
- 02Readable Code and Local Reasoning
- 03Abstraction and Coupling
- 04Unit Tests: Fast Feedback on Small Rules
- 05Integration Tests: Verify Real Boundaries
- 06End-to-End Tests: Protect Critical User Journeys
- 07Version Control and Code Review
- 08CI/CD and Observability: Build a Safe Feedback Loop
Recommended first: reliability-async
Open this moduleAdvanced Practice
After this module
You will be able to frame problems, choose proportionate solutions, manage debt and automation, estimate through uncertainty, and document decisions at the right level.
- 01Frame the Problem Before Choosing a Solution
- 02Choose the Simplest Sufficient Solution
- 03Understand Duplication Before Removing It
- 04Technical Debt as a Trade-off
- 05Automate Repeated, Stable Work
- 06Recognize Overengineering
- 07Estimate Work by Exposing Uncertainty and Risk
- 08Decision Records and Reversible Choices
Recommended first: technical-excellence
Open this moduleLeadership
After this module
You will be able to frame engineering work through outcomes, define useful metrics, lead clear decisions and conflict, give feedback, delegate ownership, and plan your transition into technical leadership.
- 01Business Value: Connect Work to an Outcome
- 02User Outcomes and Product Discovery
- 03Product Metrics: Measure Behavior, Not Activity
- 04Clear Technical Communication
- 05Psychological Safety and Useful Feedback
- 06Delegation: Transfer Outcomes and Authority
- 07Conflict and Decision-making
- 08From Senior Engineer to Technical Lead
Recommended first: engineering-judgment
Open this moduleCapstone
After this module
Produce and present a practical RFC for a safe product change, connecting user value to data, reliability, delivery, observability, and rollback decisions.
- 01Define the User and Business Outcome
- 02Map the Request and Data Flow
- 03Choose Storage and Consistency
- 04Design Performance and Reliability
- 05Slice Delivery and Tests
- 06Roll Out with Observability and Rollback
- 07Write and Present the Final RFC
Recommended first: system-foundations, data-storage, performance-scale, reliability-async, technical-excellence, engineering-judgment, product-leadership
Open this moduleStudy in order unless you can explain every prerequisite in your own words. After each chapter, connect the idea to one system you already know. Draw the flow, name the trade-off, and identify the evidence you would collect before changing it.
Complete the exercise before moving to the next stage. The capstone should become a real RFC or portfolio artifact that another engineer could review and implement.
The broad topic scope was inspired by the publicly visible syllabus of How to Become a Better Programmer. All explanations, examples, exercises, quizzes, and capstone material on this site are original and are not an official reproduction or certification from Skooldio.