Focus on understanding the codebase by breaking it into smaller components and studying each part systematically. Start with key modules and identify how they interact, paying close attention to the macros and their functions. Learn the basics of blockchain concepts like consensus mechanisms and state machines relevant to your product to understand the underlying principles.

Ask team members for clarification during code reviews to gain insight into the logic behind changes. Spend time on pair programming to learn directly from experienced developers. Contribute by working on smaller tasks like fixing bugs or writing documentation, as this will help you build familiarity with the code while adding value to the project.

Create your own notes and diagrams to document what you learn. Use these to improve your understanding and share them with your team to enhance collaboration. With consistent effort, you will develop the confidence to contribute more effectively.

Working with a blockchain codebase can be challenging, especially when the documentation is minimal, the code is rushed, and macros dominate the structure. With your experience in Rust, you already have a strong foundation. The key now is to adapt that knowledge to the specific requirements of blockchain development. Start by learning the core principles of blockchain systems, such as how transactions, consensus, and smart contracts work. Free resources like online courses or developer guides from platforms like Ethereum or Solana can be helpful.

To understand the codebase, focus on one key module or feature at a time. Identify its purpose, input, and output, and map its connections with other parts of the system. Whenever macros confuse you, isolate their use and try simpler examples to see how they work. Rust macro guides can simplify this process.

Talk to team members to gain insights into design decisions and shared knowledge. Pair programming or shadowing senior developers can help you catch nuances that documentation might miss. When reviewing code, ask questions about changes to clarify the logic, even if it feels uncomfortable at first.

Limit code review sessions to two hours, as your current approach indicates diminishing returns after this point. Use other parts of your day to explore the codebase or develop smaller features. Progress takes time, and improving your understanding incrementally is better than rushing through tasks without clarity.

Many new hires in startups face this exact challenge, so you’re not alone. Talk to your manager or tech lead about your biggest blockers—they need to know what’s slowing you down. Request a knowledge-sharing session to document key parts of the system; chances are, others on the team will benefit too. As you learn, improve the documentation—it’s a great way to reinforce your understanding while making life easier for future developers. Don’t rush to prove yourself. Three months isn’t enough to master a complex codebase, especially in blockchain. You got hired for a reason, so trust your skills and focus on steady progress.