"The story of every engineer. My work is about turning those desperate prayers into absolute production confidence: solid code, smart strategy, and architectures that last."
Welcome! I'm Lazar Kulasevic, a product-focused Software Engineer specializing in cutting-edge frontend architecture, serverless ecosystems, and the integration of robust developer workflows. I build things that make the "finger-crossing" moment obsolete.
We’ve all been there: you push to production, hold your breath, and pray to the server gods. But in the era of serverless, complex React state, and probabilistic AI agents, relying on a vibe isn't enough. I specialize in building the safety nets—lightweight feature flags, strict TypeScript architectures, robust CI/CD pipelines, and bulletproof health-monitoring layers—so we can deploy and play, not panic.
- 📦 Authoring Open Source: Created
react-feature-flagz— a lightweight, zero-dependency NPM package for seamless runtime feature toggling with native TypeScript support. - 🤖 Serverless & AI Infra: Architecting production-ready, multi-tenant serverless API hubs with Groq LLM integrations, self-hosted cron health checks, rate-limiting layers, and prompt injection protection.
- 🖋️ Writing Technical Deep-Dives: Sharing architectural blueprints on system design, database scaling (sharding, caching), and the human side of engineering in the AI era over at deployandpray.com/blog.
| Layer | Technologies & Tools |
|---|---|
| Languages & Core | TypeScript JavaScript (ES6+) Node.js HTML5/SCSS |
| Frontend Architecture | React Next.js Vue Vite State Management |
| Backend & Infra | Serverless Architecture Vercel / Cloudflare Workers REST / GraphQL APIs |
| Reliability & Scaling | Feature Flags (GrowthBook / Native) CI/CD (GitHub Actions) System Design |
- Nyegosh: An AI-driven CLI tool built during a Symphony AI Hackathon (where I served as Team Captain) to automate Conventional Commit generation and streamline dev workflows.
- MiaDent: A multi-lingual, highly SEO-optimized web application featuring tailored regional AI assistants.
Let's talk system design, complex React rendering challenges, or why shipping AI agents without traditional software engineering infrastructure is a recipe for disaster.
- Website & Portfolio: deployandpray.com
- Read My Thoughts: deployandpray.com/blog
- LinkedIn: Connect with me (Update with your actual URL handle if different!)


