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Nazarii
@nazarii_voitkiv
Level 2
Next js Developer, Bug Fixes, Deployment, SaaS
Poland
Ukrainian, Russian, Polish
About me
Hi, I’m Nazarii, a Full Stack Developer from Ukraine focused on fixing, deploying, and extending Next js apps.
I help founders and small teams with Next.js bugs, Vercel or Render deployment issues, Node.js errors, API integrations, Stripe billing, Supabase, OpenAI features, dashboards, and lean SaaS MVPs.
If you have an existing app, repo, or product idea, I can help debug the issue, connect the missing piece, or get the app live with clean code and clear communication.
Skills
Nazarii
$25/hour
Offline •
Average response time: 1 hour
See my services
Bug Fixes
I will fix next js bugs node js errors and vercel deployment issues
Custom Websites
I will build a lean saas mvp with next js supabase and stripe
Want to work on an hourly basis?
Tell Nazarii what you need.
$25
/
hourPortfolio
Work experience
Full Stack Developer
Tanda • Full-time
Mar 2024 - Jan 2026 • 1 yr 10 mos
As a Full Stack Developer at Tanda (tanda.spot) — an innovative platform for discovering local events — I am responsible for building, scaling, and maintaining the core web architecture. My key responsibilities and achievements include: Frontend Development: Building responsive, high-performance user interfaces using Next.js to ensure a seamless, engaging experience across all devices. Backend Architecture: Developing robust server-side logic, managing databases, and creating RESTful APIs using Node.js. System Integration: Engineering smooth data synchronization and API communication between the web platform and the companion mobile application. Performance & SEO: Optimizing the web application for speed and implementing technical SEO best practices to boost organic event discoverability. Code Quality: Writing clean, maintainable, and scalable code while focusing on an intuitive user journey for both "Explorers" (attendees) and "Local Creators" (organizers). Core Technologies: Next.js, Node.js, REST APIs, Web Performance Optimization.
25 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 25 Reviews
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Most relevant
dmitrybagrov
Kazakhstan
Exceptional work. I ordered a technical discovery for an existing web project and received a 28-page audit — architecture, data model, security, GDPR, risks, and a phased plan with realistic estimates. He studied our codebase in detail, flagged issues we hadn't noticed, and was honest about the hard...
Helpful?
tanzer81
Repeat Client
Germany
I am very satisfied working with Nazarii. As always, he delivered the tasks quickly, professionally, and with great attention to detail. What I appreciate most is that he really understands the system and thinks about stability, architecture, and long-term quality instead of just rushing through tasks....
Helpful?
tanzer81
Repeat Client
Germany
Nazarii has been an outstanding developer throughout our collaboration. He consistently delivers high-quality work, pays great attention to detail, and always thinks beyond the requested tasks by suggesting practical improvements. Thank you.
Seller's Response
Helpful?
colsusername
Repeat Client
New Zealand
I knew nothing of what we were doing, so Nazarii has made it easy so far so most appreciated. thanks. highly recommended
Helpful?
lumine2026
Repeat Client
United States
Fixed my forms and Vercel deployment successfully. Very responsive. I highly recommend and look forward to working with him again.
Seller's Response
Helpful?
