Learn how software systemsare engineered.
Practice the fundamentals. Build working systems. Understand every decision.Start with focused coding challenges, then build simplified versions of Git, databases, servers and AI tools. Tests and clear explanations at every step help you understand how they work—and build the judgment to work confidently with AI.
Master the skills used by top engineering teams
- Amazon
- Microsoft
- Cloudflare
- Meta
- Salesforce
- Uber
- Bloomberg
- Databricks
- Adobe
- IBM
- Netflix
- OpenAI
- TikTok
- Anthropic
- Capital One
- Citadel
- Dropbox
- Elastic
- JPMorgan Chase
- NVIDIA
- Oracle
- Roblox
- Airbnb
- Apple
- Atlassian
- Cockroach Labs
- Confluent
- Datadog
- Docker
- GitHub
- GitLab
- Goldman Sachs
- HashiCorp
- MongoDB
- Pinecone
- Red Hat
- Snowflake
- Splunk
- Stripe
- Walmart Labs
- Weaviate
Go from “I solved it” to “I understand it.”
Small problems. Working models. Visible results. Follow one idea through ALGO’s Git challenge.
2. Master one idea at a time.
3. Make your code do something real.
4. See proof that it works.
5. Turn a failed test into understanding.
6. Build a system you can explain.
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Tell us what you want to learn with ALGO.
Systems engineering, explained.
Go beyond passing tests: understand correctness, failure, scale, and performance.