my-expedition
Lv. 6Next.js / TypeScript
Next.js 15 portfolio with localized routes, expedition-inspired visuals, and a typed content layer built to evolve without rework.
EXPEDITION 25
Jonathas
Oliveira
« Kaironn »
Developing solutions for those who come after
Mining some data...
2+ yearsJourney time
2Production projects
Python - TypeScriptCurrent stack
I.
About
- Field profileSoftware engineer with 2+ years of experience, specialized in Python, automation, large-scale data extraction, and distributed systems.
I currently work with data extraction and processing pipelines, focusing on performance, scalability, and operational cost reduction. Key results include:
- Up to 90% reduction in execution time for extraction processes
- Optimized flows with more than 100 thousand items, reducing from 9 to 4 requests per item
- Over 50% reduction in infrastructure consumption through architecture and request-flow improvements
I also have experience building backend and frontend applications with technologies like TypeScript, Django, React, and Next.js.
In my free time, I contribute to the modding community by localizing games from English to Portuguese, currently reaching 100 thousand downloads. From that experience, I built Icosa, a desktop application made with Electron + TypeScript to support translation workflows for Baldur's Gate 3 files.
The project has already helped 500+ translators around the world, offering tools for translation management, dictionaries, and localization workflows.
II.
Career
- Combat recordCURRENTMar 2026 - Present · Remote
Software Engineer
Data OpportunityEngineering large-scale data extraction systems with focus on performance, reliability and external API integration.
- Optimized scraping pipelines by up to 90%, cutting runs from roughly 20min to 2min and from 3h to 20min.
- Refined a 104,000-item workflow by reducing requests per item from roughly 9 to 4, cutting infrastructure usage.
- Built FastAPI webhooks and integrated external APIs for service-to-service communication.
- Created validation and normalization routines to raise data consistency and ingestion quality.
- Python
- FastAPI
- Scrapy
- Postgres
- Redis
- Digital Ocean
- Docker
Level4Oct 2025 - Mar 2026 · Internship
Software Engineering Intern
Data OpportunityContributed to data extraction and processing workflows, supporting pipeline maintenance and routine organization.
- Developed and maintained workflows using Python and Scrapy.
- Analyzed internal requests and implemented quality-focused automation.
- Supported pipeline maintenance and extraction processes.
- Python
- Scrapy
- SQL
- Git
Level3Sep 2025 - Dec 2025 · Remote
Volunteer Software Engineer
ONG GabrielREST APIs, SPA/SSR frontend and containerized infrastructure for a non-profit.
- REST APIs and backend services with Django/DRF.
- SPA/SSR frontend with TypeScript and Next.js, integrating dynamic CMS content.
- Refactored architecture for scalability and maintainability.
- Containerized stack with Docker, Compose and Traefik.
- Django
- Next.js
- TypeScript
- Postgres
- Docker
- Traefik
- Hostinger
Level2May 2024 - Oct 2025 · Feira de Santana, BA
Automation Developer
Loja Sangue LatinoAutomation workflows and data pipelines impacting logistics, support and finance.
- Automated 90% of shipment tracking across 4 carriers, eliminating 6h/day of manual work.
- ETL workflows for invoice and freight auditing, improving cost analysis.
- Automated email and WhatsApp notification systems cutting transport-related support by more than 50%.
- Operational automations with Google Apps Script and real-time integrated spreadsheets.
- Python
- Selenium
- lxml
- Apps Script
- Office 365
Level1
III.
Skills
- ArsenalFamiliarity level - 1 to 100
01Backend
- PythonFamiliarity level: 95/100
- FastAPIFamiliarity level: 87/100
- DjangoFamiliarity level: 81/100
- REST API DesignFamiliarity level: 91/100
- PydanticFamiliarity level: 85/100
- SQLAlchemyFamiliarity level: 78/100
02Frontend
- TypeScriptFamiliarity level: 81/100
- ReactFamiliarity level: 79/100
- Next.jsFamiliarity level: 78/100
- ElectronFamiliarity level: 63/100
- Tailwind CSSFamiliarity level: 77/100
03Data & Infra
- PostgreSQLFamiliarity level: 81/100
- RedisFamiliarity level: 79/100
- DockerFamiliarity level: 83/100
- NginxFamiliarity level: 76/100
- TraefikFamiliarity level: 71/100
- AWSFamiliarity level: 51/100
04Scraping & RPA
- ScrapyFamiliarity level: 96/100
- Requests / HTTPXFamiliarity level: 92/100
- lxmlFamiliarity level: 87/100
- PlaywrightFamiliarity level: 77/100
- Distributed CrawlingFamiliarity level: 79/100
- ETL PipelinesFamiliarity level: 74/100
05Architecture & Messaging
- Distributed SystemsFamiliarity level: 66/100
- Task QueuesFamiliarity level: 74/100
- System DesignFamiliarity level: 64/100
- CeleryFamiliarity level: 71/100
- RabbitMQFamiliarity level: 69/100
06Tooling & Enviroment
- GitFamiliarity level: 91/100
- LinuxFamiliarity level: 82/100
- PytestFamiliarity level: 81/100
- uvFamiliarity level: 86/100
- AlembicFamiliarity level: 72/100
- CI/CDFamiliarity level: 71/100
IV.
Projects
- Production artifacts
Icosa
Lv. 7Electron / TypeScriptElectron + TypeScript desktop app that helps Baldur's Gate 3 mod translators manage files, dictionaries, and localization workflows.
V.
Certifications
Next records
Coming soon
VI.
Courses
Training and studies
Coming soon
VII.