Bruno Prates

Bruno Prates

Full Stack Developer

Multidisciplinary expert who unites Business, Data, and Technology. Proficient in Python, Django, Vue.js, and DevOps, I focus on developing systems that integrate Artificial Intelligence (AI/ML) and data analysis. My work transforms business requirements into automated solutions that deliver actionable insights, enhance decision-making, and create operational efficiency and growth.

Location

Helsinki, Finland (UTC+3)

Availability

Freelance & Contract

Core Competencies

Backend Development 85%

Frontend Development 75%

Databases & Data Integration 80%

DevOps & Automation 70%

AI & Data Analytics 90%

Business Analysis & Strategy 90%

Process Optimization 87%

Leadership & Collaboration 85%

Technology Stack

Python

Python is the foundational language across all my backend solutions. I leverage its robust ecosystem for developing scalable RESTful APIs (FastAPI/Django Ninja), complex business logic, and advanced data applications. My experience includes full-stack development (Django/Vue.js) for a Custom Business Management Platform and driving process automation by integrating proprietary AI models via the Gemini API. Python is crucial in my work to ensure stability, efficiency, and data-driven decision-making.

Django

Extensively used Django to build structured, secure, and feature-rich web applications. Key projects include a monolithic Mentorship Platform (MatkaMestre), a robust Task Management System, and applications integrating Stripe Payment Processing. I utilize Django's built-in functionalities for secure authentication, ORM for efficient database management, and asynchronous task handling using Celery and Redis.

Django Ninja

Utilizing Django Ninja, I specialize in creating fast, easy-to-use RESTful APIs within the Django ecosystem. I applied this framework in the FreudLens project to handle the backend logic for AI-powered psychological analysis. I also built a dedicated Task Management API using Django Ninja, securing all endpoints with JSON Web Tokens (JWT) for robust authentication and authorization.

FastAPI

FastAPI have been used to build modern, high-performance, and asynchronous API backends. This is demonstrated in the FastAPI Authenticator project, where I implemented a secure user registration and login system. The solution relies on SQLAlchemy for efficient database interaction (PyMySQL) and robust security practices, including password hashing via Bcrypt and Passlib, ensuring secure credential storage.

Flask

While my recent projects emphasize high-level frameworks like Django and FastAPI, I maintain strong proficiency in lightweight frameworks like Flask. I am prepared to leverage Flask for building efficient microservices, rapid-deployment prototypes, and applications where minimal overhead is required, demonstrating versatility and the ability to select the optimal framework for specific architectural demands.

Vue.js

I utilized Vue.js for building dynamic, modern, and high-performance user interfaces. My experience includes full-stack development using Vue.js for the Custom Business Management Platform and developing the complex frontend for the FreudLens application. I employ Vue.js to deliver responsive Single-Page Application (SPA) experiences, often optimized using fast build tools like Vite.

Tailwind CSS

Tailwind CSS is my preferred utility-first framework for rapid and responsive UI design. I used this approach to style critical project interfaces, including the dedicated user dashboard and features in FreudLens, the mentor/mentee platform MatkaMestre, and the user-friendly homepage and questionnaire for NutriSelf.

Bootstrap

While my current stack favors utility frameworks, I maintain strong proficiency in traditional component-based systems like Bootstrap. I am prepared to leverage its extensive library for rapid prototyping or integrating into projects that demand a standardized, widely recognized design language, demonstrating versatility and ensuring fast time-to-market.

JavaScript

JavaScript is fundamental to my entire frontend development stack. I utilized it extensively in the NutriSelf application to ensure a dynamic, responsive user-friendly interface. Its application, often coupled with frameworks like Vue.js, is key to handling user interactions, performing client-side validation, and enabling smooth, efficient data exchange with backend APIs.

Vite

To ensure maximum development speed and optimized production performance, I leverage Vite as the modern build tool for my Vue.js applications. In the FreudLens project, Vite was crucial for rapid local development and delivering highly performant client-side assets.

PostgreSQL

While utilizing other databases for rapid prototyping, I maintain strong expertise in PostgreSQL for production environments. My background includes preparing and configuring applications (which are easily configurable to support PostgreSQL) to leverage its advanced features, ensuring data integrity, transactional reliability, and scalability for enterprise-grade applications.

MySQL

I have practical experience using MySQL in high-performance API backends. In the FastAPI Authenticator project, I utilized PyMySQL alongside SQLAlchemy to manage user data efficiently. This demonstrates proficiency in setting up and securing relational databases for efficient data storage and retrieval in modern API architectures.

SQLite

SQLite is the core database used for ease of setup and local development across nearly all my Python/Django projects. I leveraged it in projects like FreudLens and MatkaMestre to ensure rapid prototyping and a robust development environment. My designs ensure that projects are easily configurable for migration to enterprise-level database systems like PostgreSQL or MySQL.

Firebase

As a developer skilled in multiple database paradigms, I am proficient in leveraging Firebase for projects requiring a NoSQL solution. I am prepared to implement Firebase's real-time features and secure authentication layer for dynamic web or mobile applications, providing fast, scalable, and responsive data synchronization for modern user experiences.

Redis

I utilize Redis primarily as a high-performance message broker for asynchronous task processing in Django applications. In the Django Celery Online Event Management and Django Stripe Payment Integration Event projects, Redis was crucial for the efficient and reliable scheduling and management of background tasks, such as sending automated invitations and access codes via email.

Docker

I utilize Docker extensively to ensure consistency and isolation across development and production environments. I successfully implemented Docker for containerization in the FreudLens project, which runs a multi-container architecture, and for streamlining the deployment of the MatkaMestre platform and the NutriSelf application.

AWS

I possess practical, hands-on experience managing infrastructure in AWS. This includes deploying and hosting my complete portfolio, securely managing subdomains for project access, and configuring the necessary services to run scalable Python web applications efficiently.

Git

Git is the foundation of my version control workflow. I use standard practices for branching, merging, and collaborating effectively. This essential tool ensures reliable tracking of changes and facilitates the robust CI/CD pipeline integrated into projects like NutriSelf.

GitHub

GitHub serves as the central repository for all my development work, ensuring transparent version control and collaboration. I leverage GitHub’s features not only for code storage but also as the primary platform for deploying continuous integration pipelines via GitHub Actions

GitHub Actions

I implement GitHub Actions to automate critical stages of the development lifecycle. This technology is instrumental in establishing efficient CI/CD pipelines, automating tests, and streamlining deployment processes, as demonstrated in the NutriSelf project.

CI/CD

I practice CI/CD (Continuous Integration/Continuous Delivery) using automation tools like GitHub Actions. This methodology is applied to projects like NutriSelf to ensure automated testing, rapid deployment cycles, and the efficient delivery of updates while maintaining application stability.

Docker Compose

I use Docker Compose to define and manage multi-container applications efficiently using a single configuration file. This was crucial for orchestrating the distinct backend and frontend services required by the FreudLens application and the MatkaMestre platform.

Celery

Celery is integral to enhancing application responsiveness by handling background and asynchronous tasks. I utilized Celery in the Django Celery Online Event Management project for automated email invitation sending and in the Stripe Payment Integration Event project for reliably sending access codes upon successful payment. I configure Celery using Redis as a high-performance message broker.

Nginx

I am proficient in using Nginx as a high-performance reverse proxy. My expertise includes managing the live infrastructure where I utilized Nginx to securely handle and route traffic, specifically for managing subdomains created for various portfolio projects hosted on AWS.

Gunicorn

Gunicorn is a core component of my production Python stack. I am adept at configuring Gunicorn to serve Python web applications (including Django and FastAPI solutions) efficiently behind a reverse proxy like Nginx, guaranteeing high concurrency and stability for applications in production environments.

Prometheus

As an expert in building scalable infrastructure, I am proficient in leveraging Prometheus for robust, real-time service monitoring and alert management. I am prepared to integrate Prometheus into production environments to collect critical metrics, ensuring proactive identification and resolution of performance bottlenecks and system failures.

Grafana

Complementary to Prometheus, I utilize Grafana to build compelling, insightful dashboards. I can transform complex monitoring data into clear, actionable visualizations, enabling data-driven operational decisions and improving the overall health and observability of deployed applications.

Webhooks

Webhooks are crucial for building robust, event-driven communication architectures. I am proficient in utilizing webhooks for asynchronous processing, which is critical for integrations where immediate, guaranteed notification of events is required [2, My previous response]. This approach ensures reliable data exchange, such as in the Stripe Payment Integration Event project, where successful payment confirmation triggers necessary background tasks.

WebSockets

I maintain strong proficiency in implementing WebSockets for applications requiring persistent, bi-directional communication channels. This technology is essential for developing features that demand real-time data flows and highly interactive user experiences, such as live notifications or instant data updates, providing dynamic and responsive application features [My previous response].

Stripe

Stripe is integral to my event management and e-commerce solutions. I implemented Stripe for secure payment processing in the Django Stripe Payment Integration Event project. This integration included automated workflows, utilizing Celery and Redis, to send access codes via email immediately upon successful payment, ensuring reliable post-transaction communication.

Gemini

I utilized the Google Gemini API to integrate powerful AI capabilities into key business systems. In the Custom Business Management Platform project, Gemini was implemented to automate analytical report generation and support strategic decision-making. It was also central to the FreudLens application, where it generated personalized psychological insights based on user questionnaire responses guided by Freudian principles.

OpenAI (ChatGPT)

My expertise allows me to leverage these powerful Large Language Models (LLMs) for diverse applications such as advanced content generation, complex data extraction, and fine-tuning proprietary models to enhance customized business workflows.

Anthropic (Claude)

My expertise extends to utilizing various industry-leading LLMs, including Anthropic's Claude. I am adept at designing systems that utilize Claude for secure, long-context reasoning and sophisticated dialogue generation, ensuring solutions meet high ethical standards and deliver reliable performance for enterprise use cases.

Grok

I maintain cutting-edge knowledge of emerging LLM technologies like Grok. My focus is on rapidly implementing and evaluating new models to ensure my projects can harness real-time data processing and high-speed inferences, positioning solutions for competitive advantage and utilizing dynamic data sources effectively.

LangChain

I specialize in developing complex, multi-step LLM applications using the LangChain framework. I am prepared to build sophisticated AI agents, optimize complex Retrieval Augmented Generation (RAG) pipelines, and orchestrate diverse tools to solve specific business challenges and provide context-aware insights.

LangGraph

As a specialist in AI workflow orchestration, I am proficient in using LangGraph to model complex, stateful multi-agent systems. This expertise ensures I can build robust and cyclical LLM applications that require planning, reflection, and iterative execution to achieve optimal results.

CrewAI

I leverage CrewAI to design autonomous AI teams capable of executing high-level tasks through cooperative agent workflow design. This methodology allows for the automation of complex processes, such as simulating expert teams for market research, detailed report generation, and multi-step, data-driven decision-making pipelines.

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Business & Strategic

Strategy

Strategic goals defined and initiatives aligned across technical and business domains. Market analysis research produced, directly informing executive decisions, leading to the identification of key risks and the maximization of market share opportunities. Strategic planning contributed to a 200% expansion in the client base year-over-year. Integrates AI (Gemini API) and business analysis into technical solutions (Custom Business Management Platform) to automate reports and support data-driven decision-making.

Analysis

Specialization in transforming business data into actionable insights. Custom business management platforms developed, integrating proprietary business analysis methodologies and AI (via Gemini API) to automate complex analytical reports. Advanced Excel models created to track key metrics, successfully reducing report preparation time by 50% and improving the frequency and depth of performance reviews. Market trends and business performance analyzed to align initiatives.

Finance

Practical experience managing core financial functions for business sustainability and growth. Budget and cash flow managed, ensuring financial stability. Achieved a 12% increase in monthly revenue through targeted promotions. Budgets and operational costs controlled effectively, maintaining financial stability while reducing costs by 15%.

Optimization

Operational efficiency enhanced through innovative process optimization. Document processing workflows optimized, successfully ensuring 100% daily case updates by noon across three countries. Advanced Excel models developed, reducing report preparation time by 50%, improving the frequency and accuracy of analyses. Operational costs controlled, contributing to a 15% reduction in costs.

Automation (RPA)

Key contributor to a European-wide Robotic Process Automation (RPA) project, defining bot workflows and automating repetitive tasks. Process automation integrated into the Custom Business Management Platform, utilizing the Gemini API to automate analytical reports. Technical solutions leverage Celery and Redis to handle asynchronous background tasks

Scalability

Expertise in establishing scalable infrastructure for technical applications, demonstrated in the Custom Business Management Software development. Ensured organizational scalability by reorganizing operations for a major client and developing a comprehensive instructional manual for department scalability. Technical backends built using frameworks like Django and FastAPI are inherently designed as scalable, maintainable, and secure applications.

Organization

Robust organizational management techniques applied to complex operational challenges. Workflows managed effectively to ensure daily updates and better process management across three international countries simultaneously. Reorganization of operations resulted in the regularization of 100% of pending cases within two months.

Marketing

Marketing and sales promotion strategies led successfully. Initiatives resulted in a 100% increase in the client base within the first two months. Innovative solutions applied to optimize processes and double the customer base quickly, demonstrating proficiency in targeted promotional campaigns.

Revenue Generation

Expertise in aligning business performance with strategic goals, leading to tangible financial growth. Market trends and business performance analyzed, contributing to an increase in revenue. Financial stability ensured, achieving a 12% increase in monthly revenue through targeted promotions.

Expansion

Strategic planning and goal-setting contributed directly to significant scaling, resulting in a 200% expansion in the client base year-over-year. Successful optimization methodology extended from the Portuguese market to the Spanish and French markets, ensuring the same high level of efficiency across three international countries.

Retention

High performance achieved in customer loyalty, resulting in an 80% client retention rate. Open and transparent communication established in client relationships led directly to greater customer satisfaction and sustained high retention rates.

Proactivity

A proactive approach demonstrated by creating advanced Excel models that reduced the time spent preparing reports by 50%, improving the frequency and accuracy of analyses by anticipating needs. Initiative taken to automate repetitive tasks via the Robotic Process Automation (RPA) project, which significantly increased productivity and reduced processing time.

Problem Solving

Applied to clear a complex backlog of insurance processes, resulting in the regularization of 100% of pending cases in two months. Market research conducted strategically identified risks and opportunities, contributing to an increase in market share. Demonstrated expertise in transforming complex business needs into actionable technical solutions.

Communication

Effective communication channels established with international teams, ensuring the successful implementation of automated processes across three countries (Portugal, Spain, and France). Transparent client relationships established, leading directly to greater customer satisfaction and an 80% client retention rate. Skills reinforced by specific training in negotiation and effective communication.

Innovation

Innovative marketing strategies developed successfully doubled the customer base in 2 months. Innovative solutions applied to optimize document processing workflows, ensuring 100% daily updates across international markets. Technical innovation includes integrating AI for automated reporting (via Gemini API) and participating in a pilot project to implement Artificial Intelligence for document recognition and decision-making support.

Negotiation

Developed expertise in Strategy and Negotiation in Oratory through the Master Mind PLENO program. Applied communication skills to establish effective channels with international teams.

Teamwork

Effective collaboration with teams across different countries to implement automated systems, significantly improving efficiency and productivity. Worked alongside a partner to achieve a 200% annual expansion in the client base and successfully maintain an 80% client retention rate through partnership and shared goal-setting.

Legal Credential

Holds a Bachelor of Law (LLB) degree and maintains membership in the Brazilian Bar Association (OAB) since 2013.

Legal Support

Provided during business analysis activities. Expertise specialized in the creation and analysis of commercial contracts, including those necessary for new business development, strategic partnerships, purchase and sale agreements, and property leasing. Ensures that all commercial agreements are secure and legally sound.

Compliance

Ensures business and strategic decisions adhere to necessary compliance standards. Expertise applied to the creation and analysis of commercial contracts, including those for new business development, partnerships, purchase/sale agreements, and leasing, guaranteeing that all commercial agreements are secure and legally sound. Legal support provided during business analysis activities.