Full-Stack Developer | React, Next.js, Node.js, Django, Laravel | AI-Powered SaaS & Scalable Web Apps

Hi, I’m Nikola, a full-stack developer with a passion for creating modern, user-focused web applications that are fast, secure, and built to scale. For the past several years, I’ve helped startups, companies, and entrepreneurs turn ideas into polished products—from backend architecture to clean, intuitive front-end interfaces.

I specialize in building high-quality, full-stack solutions using the technologies that power today’s best web products:
Frontend: React, Next.js, Vue, Tailwind
Backend: Node.js, Express, Django, Flask, Laravel
Databases: PostgreSQL, MySQL, MongoDB, Redis
API Development: REST, GraphQL, Webhooks
DevOps: Docker, CI/CD, AWS, DigitalOcean
AI Integrations: OpenAI (GPT-4, GPT-4o, GPT-5), Claude, vector search, embeddings, fine-tuned models

My experience includes building everything from custom APIs and complex dashboards to full SaaS platforms with subscription billing, authentication, user management, live data pipelines, and AI-powered features.

✔️ What I Deliver
Clean, maintainable code following best practices
Fast turnaround and clear communication
Scalable architecture and optimized database design
Pixel-perfect frontend implementation
Solid testing, documentation, and deployment support
Long-term reliability and ongoing development if needed

✔️ AI-Powered & SaaS Development
I have built multiple AI-driven applications using OpenAI, ClaudeAI, embeddings, RAG pipelines, fine-tuning, and prompt-engineering techniques. I can help you integrate AI capabilities into your product or build a full SaaS tool from scratch including dashboards, authentication, payments, and admin features.

✔️ Who I Work With
Founders building their MVP
Companies needing long-term full-stack development
Teams looking for fast API development or integrations
Businesses upgrading legacy systems
Anyone needing stable, scalable, and well-architected software

✔️ Why Clients Choose Me
100% commitment to quality
Strong sense of UI/UX even as a backend-focused engineer
Ability to handle full product lifecycle (design → development → deployment → support)
Fluent, proactive communication and availability across time zones
A positive, problem-solving attitude with zero excuses

If you have an idea, a feature, or a full platform in mind, I’d be happy to help bring it to life—efficiently, professionally, and with code you can trust.

Work Terms

Availability:
Flexible hours, available for full-time, part-time, or project-based work.

Communication:
Daily updates available through Guru, Slack, Zoom, or Teams. I value transparent communication and quick responses.

Payments:
All payments are made securely through Guru’s SafePay system. I prefer milestone-based payments for larger projects, but I can adapt to your workflow.

Project Process:
Requirements discussion
Technical planning
Milestone breakdown
Development + testing
Delivery & deployment
Continued support (optional)

Guarantee:
I stand behind my work and provide bug fixes, optimizations, and ongoing support for all delivered projects.

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