You will get a technical code audit for your Node.js React or Next.js application

Vlad K.Status: Offline
Vlad K. Vlad K.

Let a pro handle the details

Buy Web Application Programming services from Vlad, priced and ready to go.
Vlad K.Status: Offline
Vlad K. Vlad K.

Let a pro handle the details

Buy Web Application Programming services from Vlad, priced and ready to go.

Project details

You will get a practical technical code audit for your Node.js, React, Next.js or TypeScript application, with prioritized findings instead of generic comments. I will review architecture, code quality, security risks, performance, scalability, maintainability, dependencies, testing & deployment concerns within the purchased scope.

I have 10+ years of software development experience across web, mobile, backend, API & cloud systems. My report explains what is wrong, why it matters, how urgent it is & what your team should address first.

Starter covers up to 20K lines with a focused report. Standard covers up to 50K lines with deeper architecture, security & performance analysis. Advanced covers up to 100K lines and includes diagrams, a remediation roadmap & a 60-minute technical call.

Each package covers one repository and one branch. Dependencies, generated files, build outputs & vendored code are excluded from the line count. Implementation of fixes, new features, penetration testing & infrastructure changes are not included. Please contact me before purchasing if your codebase or scope is unclear.
Programming Languages
HTML & CSS, JavaScript, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security
What's included
Service Tiers Starter
$199
Standard
$399
Advanced
$799
Delivery Time 3 days 5 days 7 days
Number of Revisions
123
Number of Pages
51015
Design Customization
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Content Upload
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Responsive Design
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Source Code
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Optional add-ons You can add these on the next page.
Additional Revision
+$75
Additional 25K Lines of Code (+ 2 Days)
+$199
Database & API Deep Dive (+ 3 Days)
+$299
Post-Fix Verification (+ 3 Days)
+$249

Frequently asked questions

Vlad K.Status: Offline

About Vlad

Vlad K.Status: Offline
React Developer | Full Stack Next.js React Native Node.js | AI Mobile
Vinnytsya, Ukraine - 6:21 am local time
🏆Senior Full stack developer & mobile developer 𝟭𝟬+ 𝘆𝗲𝗮𝗿𝘀 building web and mobile apps that carry real revenue. I migrated session management for 𝟭𝗠+ users to Auth0 with 𝘇𝗲𝗿𝗼 𝗱𝗼𝘄𝗻𝘁𝗶𝗺𝗲, engineered platforms behind ~$𝟭𝟬𝗕/year in ecommerce for 𝗟'𝗢𝗿𝗲́𝗮𝗹, 𝗨𝗻𝗱𝗲𝗿 𝗔𝗿𝗺𝗼𝘂𝗿 & 𝗖𝗿𝗼𝗰𝘀, delivered enterprise data & BI trusted by 𝟴𝟬%+ of the 𝗙𝗼𝗿𝘁𝘂𝗻𝗲 𝟭𝟬𝟬 & shipped mobile apps still live 𝟴+ 𝘆𝗲𝗮𝗿𝘀 after launch. I'm a full-stack developer & a mobile app developer in one hire.
◆ On the web I work across Node.js · React · Next.js · TypeScript · iOS · React Native · AWS · TypeScript · Angular · Vue · Nuxt · NestJS & Express.js with PostgreSQL · MongoDB & Redis · designing GraphQL & REST APIs. On mobile I ship native iOS Swift · native Android Java & Kotlin · Wear OS smartwatch apps and cross-platform React Native. I bring AI into products - Python-powered offline LLM chat with code capabilities, AI-assisted PR review adopted as a team standard & AI chatbots - I own DevOps end to end on AWS · Docker · Kubernetes & Linux

◆ Full stack web development
Scalable, production-grade applications from architecture to release - Node.js · TypeScript · Java · Spring & Kafka event streaming on the backend & React · Next.js · Redux · Angular · Vue.js on the frontend. I design clean GraphQL & REST APIs & own the data layer in PostgreSQL · MongoDB & Redis, with a focus on 𝗿𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆 𝗮𝘁 𝘀𝗰𝗮𝗹𝗲

◆ Mobile app development iOS · Android · Wear OS
Native and cross-platform apps that stay live for 8 years. I've shipped ride-hailing (native Android + iOS, 2-tap ordering, real-time driver tracking), golf performance tracking Android + Wear OS, sensor-based auto shot detection, GPS, fully offline & offline-first travel guides - several still live & updated on the App Store & Google Play years after launch, with on-device processing and offline-first architecture

◆ AI-augmented development
I integrate AI where it earns its place: an offline, Python-powered LLM chat with code capabilities for an air-gapped enterprise, AI-assisted code review that improved review speed & quality across the team & AI chatbots. Python is my core tool for AI data & automation

◆ DevOps · cloud & reliability
AWS · serverless · EC2 · Lambda · Docker · Kubernetes · nginx · Linux · plus CI/CD & production monitoring with New Relic. I own alerting, root-cause analysis & reliability on live, revenue-critical systems. I've built & operated self-hosted infrastructure end to end

◆ E-commerce engineering
Salesforce Commerce Cloud · SFCC/SFRA · Demandware · ISML & headless commerce SCAYLE · commercetools · VueStorefront. I've integrated Klarna · Adyen · PayPal & reCAPTCHA into live checkout, built queue-based API services with retries & idempotency & led SFCC delivery for storefronts behind 𝗯𝗶𝗹𝗹𝗶𝗼𝗻𝘀 𝗶𝗻 𝗰𝗹𝗶𝗲𝗻𝘁 𝗿𝗲𝘃𝗲𝗻𝘂𝗲

◆ Data BI integration & automation
Multi-source data aggregation & business-intelligence platforms that become a single source of truth, low-code / no-code data integration & n8n-style workflow automation - reliable, idempotent, queue-based API services and GraphQL / REST integrations

◆ How I work
I own architecture as a tech lead, mentor junior-to-senior developers, set documentation standards & turn business requirements into shipped software with clear, proactive communication & a bias for reliability

◆ Services
Full stack development · Web application development · Node.js backend development · React & Next.js development · Full-stack development · TypeScript development · Fullstack development · Angular & Vue.js · Mobile app development · iOS & Android app development · React Native · API integration & API development · GraphQL · DevOps & Cloud infrastructure · AWS · Docker · Kubernetes · AI development · LLM integration · Python automation · n8n workflow automation · Salesforce Commerce Cloud · headless commerce · payment integration · SEO · Node.js developer · React developer · iOS app developer · Android app developer · full-stack engineer · TypeScript developer · Next.js developer · Vue.js developer · NestJS developer · GraphQL API development · microservice architecture · real-time applications · WebSockets · serverless architecture · e-commerce development · SaaS development · Full stack developer · data engineering · chatbot development · Fullstack developer · database design · cross-platform development · front-end development · Full-stack developer · HTML5 · CSS · Mobile app developer · 10+ years experiences · mobile apps still live 8+ years after launch

Stack: Node.js · TypeScript · JavaScript · React · Next.js · Angular · Vue.js · Nuxt.js · NestJS · Express.js · GraphQL · Redux · PostgreSQL · MongoDB · Redis · Firebase · iOS · Swift · Android · Kotlin · Java · Wear OS · React Native · Python · AI Development · AWS · Docker · Kubernetes · Linux · CI/CD · Salesforce Commerce Cloud · n8n

Last updated: July 2026

Steps for completing your project

After purchasing the project, send requirements so Vlad can start the project.

Delivery time starts when Vlad receives requirements from you.

Vlad works on your project following the steps below.

Revisions may occur after the delivery date.

Requirements & Audit Scope

Review repository access, package limits, priorities, technology stack, known issues & expected outcomes.

Codebase Setup & Mapping

Set up the project where possible and map its modules, dependencies, data flows, architecture & critical paths.

Review the work, release payment, and leave feedback to Vlad.