Claude Code
performance
Callback Hell Making Code Unmaintainable
Code with multiple nested async operations becomes deeply nested and hard to follow (callback hell). Fixing bugs or adding features becomes dangerous due to complexity. Code written before async/await was standardized.
Refactoring to async/await would improve readability and maintainability significantly.
Error Messages You Might See
Code deeply nested with callbacks
Difficult to add error handling
Bug fixes introduce new issues (spaghetti code)
Common Causes
- Multiple chained async operations before async/await was available
- Mixing callback and Promise styles creating inconsistency
- Error handling spread across multiple catch blocks
- Code written in callback style instead of modern Promise patterns
- Complex control flow (loops, conditionals) made hard with callbacks
How to Fix It
Convert callbacks to Promises first if needed. Then use async/await for clean syntax. Example: async function load() { const user = await getUser(); const posts = await getPosts(user.id); }. Use try-catch for error handling. All error handling in one place. Much easier to read and debug than nested callbacks.
Real developers can help you.
Matthew Butler
Systems Development Engineer @ Amazon Web Services
Meïr Ankri
Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews.
Costea Adrian
Embedded Engineer specilizing in perception systems. Latest project was a adas camera calibration system.
Vlad Temian
15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox).
Cursor ambassador and agentic tooling builder.
I've scaled systems, automated deployments, and built observability tools for AI coding workflows. I specialize in taking vibe-coded apps from broken prototype to production-ready: fixing Supabase auth/RLS, Stripe integrations, deployment pipelines, and cleaning up AI-generated spaghetti.
I build tools in this space (agentprobe, claudebin, micode) and understand both sides: how AI generates code and why it breaks.
https://blog.vtemian.com/
Tejas Chokhawala
Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript.
Focused on performance, clean architecture and shipping fast.
Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools.
Stanislav Prigodich
15+ years building iOS and web apps at startups and enterprise companies. I want to use that experience to help builders ship real products - when something breaks, I'm here to fix it.
Caio Rodrigues
I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures.
I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations.
Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization.
I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems.
My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.**
David Olverson
Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production.
Rudra Bhikadiya
I build and fix web apps across Next.js, Node.js, and DBs.
Comfortable jumping into messy code, broken APIs, and mysterious bugs.
If your project works in theory but not in reality, I help close that gap.
Dor Yaloz
SW engineer with 6+ years of experience,
I worked with React/Node/Python
did projects with React+Capacitor.js for ios
Supabase expert
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Get HelpFrequently Asked Questions
How to convert callbacks to async/await?
callback-based: fn(data, (err, result) => {}). Promise-based: fn(data).then(). async/await: const result = await fn(data).
How to handle errors with async/await?
try { const result = await fn(); } catch (error) { handle error }. All error handling in one place.
Can async/await be used with all async operations?
Yes. Any function returning Promise can be awaited. If using callbacks, convert to Promise-returning first.