Hi, I'm Viktoras

Full-Stack Developer & API Specialist

Specializing in scalable web applications, custom API development, and cloud-native solutions. With over 8 years of professional experience, I transform complex problems into elegant, efficient code and robust APIs.

API Solutions for Modern Applications

REST APIs
GraphQL
Serverless
Secure Auth

About Me

My Professional Journey

My journey in web development began over 8 years ago. What started as a curiosity quickly evolved into a passion for creating digital solutions that solve real-world problems. Throughout my career, I've progressed from frontend-focused roles to full-stack development, embracing new technologies and methodologies along the way.

I've had the privilege of working with diverse teams across multiple industries, from startups to enterprise organizations. These experiences have shaped my approach to development and reinforced my belief in the power of well-crafted software to transform businesses.

Development Philosophy

I believe in writing clean, maintainable code that stands the test of time. My approach centers on user-focused design principles, ensuring that the end product not only functions flawlessly but delivers an intuitive experience. Performance and accessibility are never afterthoughts but core considerations from day one.

My Approach to Projects

Each project begins with a deep understanding of its goals, users, and business context. I follow an agile methodology that emphasizes collaboration, iterative development, and continuous feedback. This ensures that we can adapt quickly to changing requirements while maintaining focus on delivering tangible value.

I'm committed to staying at the forefront of emerging technologies and best practices. This allows me to recommend the most appropriate solutions for each unique challenge, whether that means leveraging established frameworks or adopting cutting-edge approaches.

Beyond Coding

When I'm not writing code or designing APIs, I dedicate time to mentoring junior developers and contributing to the tech community through knowledge sharing. I believe that a balanced approach to work and life not only prevents burnout but actually enhances creativity and problem-solving abilities.

I'm an active participant in local tech meetups in Kaunas, where I enjoy connecting with like-minded professionals and staying connected to the broader developer ecosystem.

8+
Years Experience
30+
Completed Projects
15+
Happy Clients
50+
API Endpoints Built

My Skills

Frontend Development

JavaScript/TypeScript 95%
React.js & Next.js 90%
HTML5/CSS3/Tailwind 95%

Backend Development

Node.js & Express 90%
RESTful API Design 95%
GraphQL 90%

Database Technologies

MongoDB 90%
PostgreSQL 85%
Redis 80%

Cloud & DevOps

AWS Services 85%
Docker 80%
CI/CD Pipelines 85%

API Development

API Security & Auth 95%
API Gateway Implementation 90%
Swagger/OpenAPI 90%

Project Management

Agile Methodologies 90%
Team Leadership 85%
Technical Documentation 90%

API Services

Custom API Solutions

I specialize in developing robust, scalable, and secure APIs that power modern applications. Whether you need to connect disparate systems, build a foundation for your mobile app, or create a public API for your services, I deliver solutions that are tailored to your specific requirements.

My API development process emphasizes security, performance, and comprehensive documentation, ensuring that your API not only functions flawlessly but is also easy to integrate with and maintain.

Why Choose My API Services

  • Comprehensive security implementation with JWT, OAuth, and API keys
  • Detailed API documentation with Swagger/OpenAPI specifications
  • Optimized performance with caching and efficient data handling
  • Scalable architecture designed to grow with your business
  • Comprehensive testing and monitoring solutions

Enterprise Integration APIs

Connect disparate business systems and enable seamless data flow across your organization. My enterprise integration APIs securely bridge CRM, ERP, and other business-critical systems.

Technologies:
RESTful APIs SOAP JWT Auth

Mobile App APIs

Optimized backend APIs designed specifically for mobile applications. These lightweight, fast-responding APIs are built to minimize data transfer and maximize battery efficiency.

Technologies:
GraphQL Firebase Push Notifications

E-commerce APIs

Comprehensive APIs for online retail platforms with product catalog management, secure payments, order processing, and inventory tracking functionalities.

Technologies:
Node.js Stripe Integration Inventory APIs

Data Analytics APIs

APIs for collecting, processing, and visualizing complex data. Includes data aggregation, filtering, and transformation capabilities for business intelligence needs.

Technologies:
Python Data Streaming Real-time Analytics

Serverless APIs

Cost-effective, auto-scaling API solutions using serverless architecture. Ideal for unpredictable workloads and pay-per-use pricing models.

Technologies:
AWS Lambda API Gateway DynamoDB

Secure Financial APIs

Highly secure APIs for financial services with robust encryption, multi-factor authentication, and compliance with financial regulations and standards.

Technologies:
OAuth 2.0 HTTPS/TLS Rate Limiting

Featured Projects

E-Commerce Platform

E-Commerce Platform

A customizable e-commerce solution for small businesses with payment processing, inventory management, and analytics dashboard. Included a comprehensive API for third-party integrations and mobile apps. Reduced client operating costs by 35%.

Next.js MongoDB AWS Lambda RESTful API
Real-Time Collaboration Tool

Real-Time Collaboration Tool

A real-time document collaboration system with WebSockets for live updates and conflict resolution between multiple users. Implemented a GraphQL API for efficient data fetching and a custom rich text editor with Markdown support.

React TypeScript Socket.io GraphQL API
Healthcare Patient Management System

Healthcare Patient Management System

A HIPAA-compliant patient management system with secure API endpoints, OAuth-based authentication, and comprehensive audit logging. Developed a secure API for integration with third-party healthcare systems and medical devices.

React Node.js PostgreSQL OAuth 2.0
Sustainable Energy Monitoring Dashboard

Sustainable Energy Monitoring Dashboard

A data visualization platform for renewable energy installations with real-time processing of sensor data. Created a scalable API architecture for IoT device integration and implemented predictive maintenance alerts using machine learning.

React D3.js Python IoT API

Get In Touch

Contact Information

Location

Saulės g. 30
51366
Kaunas, Lithuania

Send Me a Message