You will get a full audit of your React and Node codebase with fixes
Project details
I audit codebases for teams who need to know what's actually wrong before they spend money fixing it.
Full stack developer with 5 years shipping production SaaS, PropTech, and HealthTech platforms - one serving 15,000+ users, integrated with Lloyds, Barclays, NatWest and Nationwide, winner of two UK industry awards.
This audit covers architecture, performance, and security across React, Next.js, Node.js, NestJS, TypeScript, PostgreSQL, MongoDB and REST APIs.
You get a written report ranked by impact versus effort, not a generic checklist - the same process I used to cut PPTX export time by 50% and API response times by 30% on live production systems.
I work as a full stack developer, backend developer, and React developer depending on what the codebase needs, and I flag exactly where technical debt is costing you speed, security, or reliability.
If something is slow, breaking, or you're inheriting a codebase from a developer who left, this tells you what to fix first and what can wait.
Delivered in 3 days, plus a 30-minute call to walk through the findings together.
Full stack developer with 5 years shipping production SaaS, PropTech, and HealthTech platforms - one serving 15,000+ users, integrated with Lloyds, Barclays, NatWest and Nationwide, winner of two UK industry awards.
This audit covers architecture, performance, and security across React, Next.js, Node.js, NestJS, TypeScript, PostgreSQL, MongoDB and REST APIs.
You get a written report ranked by impact versus effort, not a generic checklist - the same process I used to cut PPTX export time by 50% and API response times by 30% on live production systems.
I work as a full stack developer, backend developer, and React developer depending on what the codebase needs, and I flag exactly where technical debt is costing you speed, security, or reliability.
If something is slow, breaking, or you're inheriting a codebase from a developer who left, this tells you what to fix first and what can wait.
Delivered in 3 days, plus a 30-minute call to walk through the findings together.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $100
These options are included with the project scope.
$100
- Delivery Time 3 days
- Number of Revisions 1
Optional add-ons
You can add these on the next page.
Fix implementation (per priority item)
+$100Frequently asked questions
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PV
Pavlo V.
Apr 16, 2026
Full-Stack Developer for Responsive Landing Page (Language School)
It was a pleasure working with Artem and his team! Communication was smooth, collaboration was professional and efficient. I would definitely consider working together again in the future! Every member of team who I worked with is professional! Their tech expertise really helped us with website development. Totally recommend!
About Artem
Full Stack Developer | React Node | SaaS, PropTech, HealthTech MVPs
Lviv, Ukraine - 8:54 pm local time
Over the last 5 years I have shipped web apps, mobile apps and platforms that run every day for real businesses. Systems that handle payments, patient records, real-time video and multi-country operations without falling over.
WHAT I HAVE BUILT
Conveyo, a UK property transaction platform. 15,000+ users, completions up to 5x faster than the traditional route, integrated with major UK lenders. Winner of the UK PropTech Industry Innovation Award and the UK Award for Revolutionising the Consumer Journey.
SlideCamp, a slide library that lives inside PowerPoint for enterprise teams. Cut PPTX export time from 10 seconds to 4.6 seconds by rearchitecting the job queue.
Health of Your Space, a HIPAA-compliant clinic platform that removed paper forms entirely. Patient data flows straight into the practice management system.
Chatter, a React Native social app built from zero. Real-time group audio and video, communities, creator tools, live on iOS and Android.
Haircut Express, a multilingual platform running 153 salon locations across 3 countries with a custom loyalty system.
WHAT I DO FOR CLIENTS
- Take an idea to a launched MVP, usually 4 to 8 weeks
- Rescue a codebase that is slow, unstable, or built by someone who left
- Own a product end to end so you are not coordinating three contractors
- Make things fast. 50% faster exports, 30% faster API responses, measured on live systems, not projected
STACK
Frontend and mobile: React, Next.js, TypeScript, React Native, Redux, Tailwind CSS
Backend: Node.js, NestJS, Express, REST API, GraphQL, WebRTC, SocketIO, BullMQ
Databases: PostgreSQL, MongoDB, MySQL, Redis, Firebase
Cloud: AWS, GCP, Docker, CI/CD, App Store and Play Store releases
Integrations: Stripe, OpenAI, Google Maps, LiveKit, Yoti, Twilio
HOW WE START
A free call where I listen to the idea and tell you exactly how I would build it, what it costs, and what could go wrong. If it is not a fit I will say so.
Send me a message and let's talk about what you are building.
Steps for completing your project
After purchasing the project, send requirements so Artem can start the project.
Delivery time starts when Artem receives requirements from you.
Artem works on your project following the steps below.
Revisions may occur after the delivery date.
Review your codebase
I read through the architecture, dependencies, and how data and requests move through the system - React and Node.js, front to back.
Measure, analyze
I profile real performance (query times, bundle size, render cost) and check authentication, input handling, and access control against actual risk, not a generic checklist.