Build Systems,
Not Just APIs.
Go beyond CRUD. Master high-scale architecture, observability, and industrial-grade engineering with Node, Python, and Go.
Trusted by Developers
Building Real Systems
Engineers across startups, enterprises, and independent teams use DELY to master backend architecture, concurrency, and production systems.
Advanced Architecture Topics
In-Depth Backend Lessons
Production-Focused Content
Lifetime Access
Our Core Values
Production Ready
Stop learning basics. We focus on real-world patterns used in systems handling millions of requests.
Cross-Language Mastery
Learn the concepts once, apply them anywhere.
Direct Funnel to Pro
Our premium tracks provide deep dives into deployment, security, and high-scale architecture.
Architectural Tracks
Select your specialization and start building.
Node.js Mastery
Master asynchronous architecture and high-scale Express deployments.
Python Mastery
Rapidly build secure, type-safe backends with the power of FastAPI.
Go Mastery
Achieve legendary performance with Gin and cloud-native concurrency patterns.
More Tracks Coming
Java, Rust, Zig, and more are being architected as you read this.
The Pro Community
Join thousands of backend engineers who have leveled up their careers with Dely.
"Dely's roadmap is the best I've seen. It doesn't just teach code; it teaches the thinking behind the code."
"The Go track saved me weeks of architectural research. The distributed system patterns are pure gold."
"We use Dely to onboard all our junior engineers. The consistency across languages is unique."
Choose Your Path
Transparent access for engineers at every stage. Master the fundamentals or architect the future.
| Curriculum Phase | Basic FREE ACCESS | Recommended PRO MEMBERSHIP |
|---|---|---|
Phase 1: FoundationsMaster variables, structures, and basic execution flows. | Included | Unlimited Access |
Phase 2: Core EngineeringConcurrency, I/O patterns, and service-oriented primitives. | Included | Unlimited Access |
Phase 3: Advanced SystemsDistributed locking, pub/sub architecture, and consistency models. | Locked | Unlimited Access |
Phase 4: High-Scale OpsObservability, tracing, performance tuning, and capacity planning. | Locked | Unlimited Access |
Architecture DirectivesGuided reviews and blueprints for building industrial-scale systems. | Locked | Unlimited Access |
| Start Coding | Unlock Pro Access |
Ready to Build the Future?
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