You will get a performance and database audit that fixes your slow, crashing app
Project details
Slow pages, timeouts, or a server that falls over when traffic shows up. I find the real cause instead of guessing, then tell you in plain English what it is and what it's costing you.
The investigation is read-only. Nothing in your app changes until you approve the fix list.
What I look at: frontend load times and Core Web Vitals, your slowest API endpoints, the database (slow query log, missing indexes, N+1 patterns), and server resources like CPU, memory, and connection limits.
Starter is the audit and a prioritized report with rough effort estimates. Standard fixes the top bottlenecks, tunes queries and indexes, adds caching where it helps, and shows before/after benchmarks. Advanced goes further: crash root causes, safe schema migrations, server right-sizing that often lowers your hosting bill, monitoring so you hear about the next issue first, and load testing to prove it holds.
Send me your stack and what you're seeing. I'll tell you if I can help before you buy.
The investigation is read-only. Nothing in your app changes until you approve the fix list.
What I look at: frontend load times and Core Web Vitals, your slowest API endpoints, the database (slow query log, missing indexes, N+1 patterns), and server resources like CPU, memory, and connection limits.
Starter is the audit and a prioritized report with rough effort estimates. Standard fixes the top bottlenecks, tunes queries and indexes, adds caching where it helps, and shows before/after benchmarks. Advanced goes further: crash root causes, safe schema migrations, server right-sizing that often lowers your hosting bill, monitoring so you hear about the next issue first, and load testing to prove it holds.
Send me your stack and what you're seeing. I'll tell you if I can help before you buy.
Programming Languages
JavaScript, Python, GoCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$325
|
Standard
$850
|
Advanced
$1,950
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 14 days |
Number of Revisions | 1 | 2 | 3 |
Bug Investigation | |||
Fix Documentation | |||
Detailed Code Comments | - |
Frequently asked questions
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SM
Sugiura M.
Apr 2, 2025
Three questions survey: Choosing the Best Name for a New Dating App
Thank you for your prompt responses, great work, and clear communication!
DK
Dave K.
Dec 26, 2024
Photo/Modeling Gig P49
Excellent to work with. Followed all direction. Great communication skills and prompt with timelines. Would work with again.
About Yassin
Full-Stack Developer & DevOps Engineer | Fast Apps, Clean Deploys
100%
Job Success
Clarksville, United States - 3:14 pm local time
I'm Yassin — a full-stack developer and DevOps engineer. I build web apps that feel fast, and I clean up the infrastructure underneath them so your team can ship without holding its breath.
WHAT I DO
— Full-stack builds: Vue.js, React, TypeScript on the front; Go, Python, FastAPI and REST APIs behind it
— Frontend & UI work: responsive layouts, clean component structure, and load times clients actually notice
— DevOps & cloud: AWS, Docker, Kubernetes, GitHub Actions CI/CD, GitOps deployments
— Performance rescue: slow pages, N+1 queries, memory leaks, servers falling over under real traffic
— Database work: schema audits, index tuning, query optimization, backup and migration plans
— Automation: n8n + AI workflows that kill the manual busywork between your tools
HOW I HELP
Most of my work starts as "something is broken and nobody knows why." I trace it to the actual cause instead of patching symptoms, then fix it in a way that won't come back in three months. If the right answer is a smaller change than you expected, I'll tell you that too.
WHY CLIENTS KEEP ME AROUND
— I explain things in plain English. No jargon walls, no vague status updates.
— I scope honestly. Real timelines, clear pricing, and a heads-up the moment something shifts.
— I document what I touch. You keep the knowledge, not just the code.
— I finish. I run a software studio (Nuri Softworks), so you get agency process with one accountable person on the other end.
I'm a US-based military veteran in Clarksville, TN, working 30+ hrs/week and usually replying within a few hours.
Tell me what's broken, what you've already tried, and what a win looks like. I'll reply with how I'd approach it — no pitch deck, no pressure. Happy to jump on a quick call if that's easier.
Steps for completing your project
After purchasing the project, send requirements so Yassin can start the project.
Delivery time starts when Yassin receives requirements from you.
Yassin works on your project following the steps below.
Revisions may occur after the delivery date.
Read-only investigation
I profile the frontend, backend, database, and server without changing anything.
Report and fix list
You get a plain-English report ranked by impact, with effort estimates for each fix.