You will get Full Stack Developer consultation for web app Full Stack Development
Project details
As an experienced Full Stack developer specializing in Java Spring Boot and modern frontend frameworks like React, I offer fast and practical solutions to real-world development challenges.
What sets this consultation apart is my ability to dive deep into your code or architecture and quickly identify the root of the issue — whether it’s a backend bug, API integration, OAuth flow, or a question of scalability.
Whether you're stuck, validating ideas, or just need a second pair of expert eyes — this session is tailored to deliver real technical value.
What sets this consultation apart is my ability to dive deep into your code or architecture and quickly identify the root of the issue — whether it’s a backend bug, API integration, OAuth flow, or a question of scalability.
Whether you're stuck, validating ideas, or just need a second pair of expert eyes — this session is tailored to deliver real technical value.
Programming Languages
HTML & CSS, JavaScript, JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included $18,000
These options are included with the project scope.
$18,000
- Delivery Time 5 days
- Number of Revisions 5
- Number of Pages 3
- Design Customization
- Content Upload
- Responsive Design
- Source Code
About Yaroslav
Senior Full Stack Developer | Java Spring Boot Architect | iGaming
Warsaw, Poland - 2:22 am local time
I am a Senior Full Stack Developer with a proven track record of building enterprise-grade solutions for global leaders (including EPAM Systems and Netcracker). From launching MVPs from scratch to decoupling complex monoliths into resilient microservices, I deliver products that drive measurable growth.
Key Performance Metrics:
- 8+ Years of intensive Full Stack development.
- 100% Success Rate in migrating legacy systems to Microservices (Event-driven & REST).
- C1 Advanced English: Seamless communication and technical leadership in international teams.
- Expert in High-Load: Specialized in system throughput, latency optimization, and distributed systems.
Technical Mastery (The Arsenal):
- Backend: Java (Expert), Spring Boot (Security, Cloud, Data, MVC), Node.js, Python (Django).
- Frontend: React.js, Redux, TypeScript, Next.js, Angular 7.
- Infrastructure & DevOps: Kubernetes (EKS), Docker, Terraform, Helm, GitLab CI/CD, Jenkins.
- Data & Messaging: PostgreSQL, MySQL, MongoDB, Kafka, Redis, RabbitMQ.
- Cloud: AWS (Lambda, S3, RDS, CloudWatch), Azure Cloud, GCP.
Domain Expertise:
- iGaming & Betting: Built and optimized betting solutions, integrated third-party data providers.
- Logistics & FinTech: Developed complex delivery calculation systems and product storage flows.
- Architecture: Deep experience in architectural meetings, decision-making, and code reviews.
My guarantee: I don’t just write code; I ship innovative, resilient solutions that solve complex business challenges and deliver real ROI.
Steps for completing your project
After purchasing the project, send requirements so Yaroslav can start the project.
Delivery time starts when Yaroslav receives requirements from you.
Yaroslav works on your project following the steps below.
Revisions may occur after the delivery date.
Step 1: Review your submitted details (before the call)
I carefully review the project summary, tech stack, code (if shared), and your goals in advance.
Step 2: Live consultation call (Zoom)
We'll jump on a Zoom call where you explain the issue, show code (optional), and ask your questions. I provide detailed answers, explanations, and actionable solutions during the session.