Roberto

Backend Developer (Python, Django, Flask) and Data Engineer

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Overview

Looking for full-time work (8 hours/day)

at $14.21/hour ($2,754.72/month)

Bachelors degree

Last Active

May 31st, 2026 (7 days ago)

Member Since

June 24th, 2022

Profile Description

Backend Engineer & Data Engineer | Python, Django, ORM, Kafka, ClickHouse, ETL / APIs
I’m a skilled engineer with 4+ years of hands-on experience building backend systems and data pipelines for SaaS, internal tools, and analytics platforms. I bring deep expertise in Python / Django / DRF, ORM (Django ORM, SQLAlchemy), real-time streaming with Kafka, efficient storage and query systems with ClickHouse, and relational databases like PostgreSQL / MySQL.
I’ve worked on:
- Building and scaling APIs and microservices
- Designing and optimizing ETL / data ingestion pipelines
- Implementing real-time data processing and analytics
- Developing ORM-based models and queries for maintainable, efficient data access
- Integrating APIs, external services, and workflow automations
- Ensuring high code quality, testing, and maintainable architecture
What you’ll get when you hire me:
"Reliable, clean, documented code"
"Systems built for scale and performance"
"Seamless data flow and integrity"
"Proactive communication, transparency, and delivery on time"
?? Tech stack & tools:
- Backend & Frameworks: Python, Django, Django REST Framework, Flask
- Data Engineering & Databases: Kafka, ClickHouse, PostgreSQL, MySQL, ORM (Django ORM, SQLAlchemy)
- Frontend (supporting): Vue.js, React.js, JavaScript, Bootstrap, HTML/CSS
- SaaS & Automation: GoHighLevel (CRM, workflows, funnels)
Other: API Integrations, Agile/Scrum, CI/CD, Data Modeling
Let’s talk—happy to review your project and propose the optimal backend + data solution.

Top Skills

Experience: 2 - 5 years

I have solid experience working with Python, a versatile and powerful programming language known for its readability and efficiency. I use Python not only as the backbone of web development with Django, but also for automation, scripting, data handling, and problem-solving in various projects. Key Python Skills: Clean, Readable Code: Write well-structured, PEP8-compliant code with a focus on maintainability and clarity. Object-Oriented Programming (OOP): Proficient in building reusable and modular applications using Python’s class-based approach. Data Structures & Algorithms: Strong understanding of core Python data types (lists, dictionaries, sets, tuples) and efficient algorithm design for real-world applications. File Handling & Scripting: Experienced in writing scripts for automation, batch data processing, and integration with APIs or third-party services. Error Handling & Debugging: Skilled in using try-except blocks, logging, and debugging tools to handle exceptions and maintain robust code. Testing: Use unittest and pytest to write automated tests and ensure reliability of the codebase. Libraries & Frameworks: Familiar with popular Python libraries such as: requests, json, re for web pandas, openpyxl for data manipulation and Exce API Integration: Comfortable working with REST APIs, handling responses, authentication tokens, and data parsing. Version Control: Use Git and GitHub for collaboration, version tracking, and code management in Python projects.

Experience: 2 - 5 years

I have strong proficiency in Django, a high-level Python web framework that encourages rapid development and clean, pragmatic design. My experience with Django includes building scalable, secure, and maintainable web applications from scratch, as well as improving existing systems for better performance and reliability. Key Django Skills: Model-View-Template (MVT) Architecture: Skilled in structuring applications using Django’s MVT pattern, ensuring a clean separation of logic and presentation. Django ORM (Object-Relational Mapping): Proficient in designing and managing complex databases using Django’s ORM, including relationships, custom model methods, and query optimization. REST API Development: Experienced in building and consuming RESTful APIs using Django REST Framework (DRF), with support for authentication, permissions, filtering, and pagination. Authentication & Authorization: Implemented secure login systems, role-based access control (RBAC), and third-party OAuth integrations. Form Handling & Validation: Comfortable working with Django Forms and ModelForms for secure data input, validation, and processing. Admin Customization: Customized Django’s built-in admin interface for efficient backend management tailored to business needs. Testing & Debugging: Familiar with Django’s testing framework for writing unit and integration tests, along with debugging tools like Django Debug Toolbar. Deployment & Configuration: Hands-on experience with deploying Django apps using Gunicorn, Nginx, and Docker on platforms like Heroku, DigitalOcean Third-party Integrations: Integrated apps with Stripe, Celery, Redis, and other tools to extend functionality.

Other Skills

Experience: 2 - 5 years

Experience: 6 months - 1 year

Experience: 2 - 5 years

I have hands-on experience designing, building, and integrating RESTful APIs, primarily using Django REST Framework (DRF). I focus on creating efficient, scalable, and secure APIs that serve as the backbone for frontend applications, mobile apps, and third-party integrations. Key REST API Skills: Django REST Framework (DRF): Proficient in building RESTful APIs with DRF, including ViewSets, Serializers, Routers, and Class-Based Views. CRUD Operations: Built full-featured APIs that support Create, Read, Update, and Delete operations using DRF and Django models. Authentication & Authorization: Implemented token-based authentication using DRF’s built-in system and third-party libraries (e.g., JWT, OAuth2), with support for role-based access control (RBAC). Pagination, Filtering, and Search: Enhanced API usability with built-in pagination, custom filters, and search functionality using django-filter. Validation: Created custom serializer fields and validators to ensure data integrity and meaningful API responses. API Documentation: Used tools like drf-yasg and Swagger UI to generate interactive, auto-updating API documentation. Cross-Origin Resource Sharing (CORS): Configured CORS policies to allow safe API access from frontend clients like Vue.js, React, and mobile apps. Error Handling & Status Codes: Implemented consistent and meaningful error responses with appropriate HTTP status codes and custom exception handling. Versioning & Security Best Practices: Managed API versioning and followed best practices for securing endpoints and preventing data leaks.

Experience: 6 months - 1 year

Experience: 1 - 2 years

Experience: 1 - 2 years

Experience: 2 - 5 years

Basic Information

Age
33
Gender
Male
Website
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Address
Cagayan de Oro City, Misamis Oriental
Tests Taken
None
Government ID
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