You will get I will build scalable REST API with Spring Boot and Java
Rising Talent
Rising Talent
Project details
I design and build scalable backend systems using Spring Boot, following clean architecture principles and production-ready standards.
Whether you're building a SaaS platform, internal system, or API-driven application, I help you create a reliable, maintainable, and high-performance backend.
What makes this service different?
✔ Clean and scalable architecture (Controller → Service → Repository)
✔ Production-ready API design (REST standards, best practices)
✔ Secure and structured backend development
✔ Database integration (PostgreSQL, SQL Server, MySQL)
✔ Optional event-driven architecture (Kafka)
I don’t just write code — I design systems that grow with your business.
You will receive a backend that is:
• Easy to maintain
• Ready to scale
• Built with industry best practices
Use cases:
• SaaS platforms
• E-commerce systems
• Fintech applications
• Internal business tools
If you need a backend that works today and scales tomorrow, you're in the right place.
Whether you're building a SaaS platform, internal system, or API-driven application, I help you create a reliable, maintainable, and high-performance backend.
What makes this service different?
✔ Clean and scalable architecture (Controller → Service → Repository)
✔ Production-ready API design (REST standards, best practices)
✔ Secure and structured backend development
✔ Database integration (PostgreSQL, SQL Server, MySQL)
✔ Optional event-driven architecture (Kafka)
I don’t just write code — I design systems that grow with your business.
You will receive a backend that is:
• Easy to maintain
• Ready to scale
• Built with industry best practices
Use cases:
• SaaS platforms
• E-commerce systems
• Fintech applications
• Internal business tools
If you need a backend that works today and scales tomorrow, you're in the right place.
Programming Languages
JavaScript, Java, TypeScriptCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$120
|
Standard
$350
|
Advanced
$1,000
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
API Documentation (Swagger)
(+ 1 Day)
+$50
Authentication Setup (JWT)
(+ 2 Days)
+$150Frequently asked questions
About Thiago Reis
AI Prompt Engineer | LLM Systems | AI Automation | Software Engineer
Belo Horizonte, Brazil - 9:24 pm local time
I'm an engineer with a bachelor's and postgraduate degree, with experience across both large private companies and government projects. My work today focuses on applying Artificial Intelligence and Large Language Models (LLMs) to solve real business problems.
I design structured prompt systems, AI workflows, and automation solutions using tools such as ChatGPT, Claude, and Gemini. My background in software engineering allows me to approach AI not just as a tool, but as a scalable system that can be structured, tested, and optimized.
I’ve worked across diverse sectors including regulatory agencies, automotive, mining, and healthcare — contributing to innovation, operational efficiency, and high-impact technical solutions.
✔What I Do ⚙️🤖
✔AI Prompt Engineering & Automation
Prompt engineering for ChatGPT, Claude, and Gemini
Design of structured prompt systems and reusable prompt libraries
Prompt optimization and reverse-engineering weak AI outputs
AI content generation systems and automation workflows
AI-assisted research, documentation, and operational support
✔Software Engineering & AI Systems
Full-stack systems using Node.js, React, and modern web technologies
Integration of AI capabilities into existing platforms and workflows
Scalable APIs and backend services
Automation pipelines and internal productivity tools
✔Creative AI Support
AI-assisted content creation and workflow automation
Short-form video editing (Reels, Shorts, TikTok) with CapCut
Visual design with Canva Pro (presentations, social media assets)
Automation of content production using AI tools
✔Why Hire Me
A rare combination of AI prompt engineering and software engineering
Ability to design AI systems, not just individual prompts
Strong analytical mindset for optimizing LLM outputs
Clear communication and reliable delivery
Focused on practical solutions that improve productivity and results
✔Tools & Technologies
AI & LLMs: ChatGPT, Claude, Gemini, Prompt Engineering
Automation: AI workflows, AI-assisted productivity systems
Frontend: React, Angular, JavaScript
Backend: Node.js, .NET Core, Java Spring Boot
Databases: PostgreSQL, SQL Server
DevOps: Docker, Kubernetes, CI/CD, GitHub Actions
Design & Video: Canva Pro, CapCut, Figma
Productivity: Notion, Trello, Meta Business Suite
✔What Clients Say
⭐⭐⭐⭐⭐ “Thiago saved our hospital by replacing an expensive third-party system with a custom, efficient solution. Using BPM, ECM, and analytics, he helped us save millions.” — Dr. Marcelo Fontes
⭐⭐⭐⭐⭐ “He orchestrated our entire operation like a pro — inbox, CapCut, Canva, content. Our productivity skyrocketed. A true growth partner.” — Daniela Costa
⭐⭐⭐⭐⭐ “Thiago turned our podcast clips into high-performing Reels and used AI to triple our content output.” — Alex Ferreira
⭐⭐⭐⭐⭐ “After the Brumadinho disaster, his real-time dashboards helped monitor dam safety and protect lives. His work is mission-critical.” — Ricardo Nascimento
Steps for completing your project
After purchasing the project, send requirements so Thiago Reis can start the project.
Delivery time starts when Thiago Reis receives requirements from you.
Thiago Reis works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis
Understand business goals, API needs, and system requirements.
Architecture Design
Design scalable backend architecture with clean structure and flow.