Master the
Hidden 90%
of Backend Engineering.
Most tutorials teach you how to code. We teach you how to architect. From local dev to multi-cloud deployments, master the industrial stack.
Specialized Tracks
Choose your weapon. Master the ecosystem.
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 Fiber and cloud-native concurrency patterns.
Java Mastery
Build enterprise-grade backends with Spring Boot and JVM performance.
C# Mastery
Create robust, scalable APIs using .NET and ASP.NET Core.
PHP Mastery
Power dynamic web backends with Laravel and modern PHP practices.
Ruby Mastery
Build elegant backends quickly with Ruby on Rails.
More Tracks Coming
MongoDB, SQL, Rust, Kotlin, Lua, Typescript, Swift and more are being architected as you read this.
The Roadmap to
Senior Engineer
Our curriculum isn't just a list of videos. It's a progressive system designed to build your mental model of distributed systems.
Core Foundations
Master language-specific internals and the event loop.
API Architectural Design
Beyond REST. Master GraphQL, gRPC, and WebSockets.
Scalability & Persistence
SQL, NoSQL, Caching strategies, and Sharding.
Distributed Systems
Message queues, Event sourcing, and Microservices.
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."
Industrial Patterns
Learn the exact design patterns used in production-grade systems at high-scale startups.
Deep Observability
Go beyond console.log. Master telemetry, distributed tracing, and real-time monitoring.
System Thinking
Stop thinking in lines of code. Start thinking in nodes, queues, and latency boundaries.
Free vs Pro
Every module starts free — first 4 chapters unlocked. Go deeper with Pro.
| Curriculum Phase | Basic FREE ACCESS | Recommended PRO MEMBERSHIP |
|---|---|---|
Phase 1: FoundationsFirst 4 chapters free. Master variables, structures, and basic execution flows. | Included | Unlimited Access |
Phase 2: IntermediateFirst 4 chapters free. Concurrency, I/O patterns, and service-oriented primitives. | Included | Unlimited Access |
Phase 3: AdvancedFirst 4 chapters free. Distributed locking, pub/sub architecture, and consistency models. | Included | Unlimited Access |
Phase 4: Enterprise BackendFirst 4 chapters free. Observability, tracing, performance tuning, and capacity planning. | Included | Unlimited Access |
All Remaining ChaptersEvery chapter beyond the first 4 in every phase — full depth, no limits. | Locked | Unlimited Access |
| Start Coding | Unlock Pro Access |
Common Questions
Everything you need to know about starting your journey.
Is this course suitable for beginners?
Phase 1 (Basics) is designed for those who know the language syntax but haven't built systems yet. If you are totally new to coding, we recommend learning the language basics first.
How long does it take to complete a track?
Each track (Node, Go, Python) is roughly 25-30 hours of dense educational content. With practice projects, we recommend 4-6 weeks per track.
What kind of systems will I be able to build after completing a track?
Engineers who finish a full track typically go from building basic REST APIs to designing systems that handle real-world scale — think rate limiters, distributed job queues, event-driven pipelines, multi-tenant SaaS backends, and services with proper observability and fault tolerance baked in. The later phases in particular push you to think in systems, not just in code.
Will completing these tracks help me land a better job?
Many engineers who have gone through Dely tracks have landed senior and backend engineering roles at product companies. The curriculum is built around real-world system design and production-grade patterns — exactly what interviewers and tech leads look for. That said, the outcome depends on how deeply you engage with the material. Engineers who build, break, and revisit the concepts tend to see the biggest career jumps.
Read success stories from Dely engineersReady to Architect?
Whether you're just starting or looking to hit Senior level, we have a blueprint for you.