Future
Computer
Scientist
Full Stack Developer · Data Enthusiast · CS student at UFCG. Building software and solving real problems since 2022.
Full Stack Development
Web Development
Java Programming
SQL Database Management
Data Analytics
Full Stack Development
Web Development
Java Programming
SQL Database Management
Data Analytics
I’ve been Full-Stack Developer and Tech Professional Since 2022
I build software using Java, Python, JavaScript, and PHP — with Spring Boot, Laravel, and Node.js. Currently working as CX & Data Specialist at Cupom Fiscal Sistemas and Online Content Manager at Ajardine Imóveis.
I also study Data Analytics (Google Certificate), algorithms & data structures, and IoT sensing platforms. Proficient in Figma, Photoshop, and Illustrator. Pursuing a B.Sc. in Computer Science at UFCG (est. 2028).
Jessé Chagas
These Are My Certifications
Software registration
Software registration granted by the National Institute of Industrial Property (INPI) in Brazil.
Python Developer Training
Certificate awarded by DIO upon completion of the Python Developer Training bootcamp. See certificate details below: www.dio.me/certificate/B39962E5
SQL Database Specialist Training
Certificate awarded by DIO upon completion of the SQL Database Specialist Training Bootcamp. See certificate details below: www.dio.me/certificate/CB7EDA33
Computer Technician Diploma
Diploma awarded upon completion of the integrated computer technician course during high school at IFPB.
Article Published — WICS 2024
"IA burlada: elaboração de prompts maliciosos no ChatGPT e seus impactos para a sociedade" — published at WICS 2024 (Jul/2024), developed at LAPLIN / IFPB with João Paiva, Danyllo Albuquerque and Golbery Rodrigues.
2024 – 2026
Foundations: Data, Data, Everywhere
Google · Coursera 15h · May 2026Foundations: Data, Data, Everywhere
Introduction to data analytics, data ecosystem fundamentals and the role of the data analyst. Part of Google Data Analytics Certificate.
Verify Certificate ↗Ask Questions to Make Data-Driven Decisions
Google · Coursera 15h · May 2026Ask Questions to Make Data-Driven Decisions
Structured questioning techniques to support data-driven decisions, analytical thinking and problem-solving. Part of Google Data Analytics Certificate.
Verify Certificate ↗Data Structures & Algorithms for HW — Basic
VIRTUS / UFCG · Cap.ON 10h · Apr – May 2026EDA for Hardware — Basic
Intro to algorithms, Big O / Big Theta / Big Omega notation, linear & binary search, brute force and backtracking techniques.
Cap.ON · VIRTUS / UFCGData Structures & Algorithms for Hardware
VIRTUS / UFCG · Cap.ON 30h · Sep – Oct 2024EDA for Hardware
Algorithm complexity analysis, design techniques (divide & conquer, greedy, dynamic programming) and graph theory (BFS/DFS, MST, Shortest Path).
Cap.ON · VIRTUS / UFCG · 2024Fundamentals of Intelligent Sensing Platforms for Industry
VIRTUS / UFCG · Cap.ON 20h · Apr – May 2026Intelligent Sensing Platforms
Smart sensing platform concepts, physical & connectivity components, sensor data infrastructure, and IoT security for industrial environments.
Cap.ON · VIRTUS / UFCG · 2026These Are My Portfolio
Lajedo do Marinho
Ajardine Imóveis
Brasil Representações
BE HUMBLE Bot
Promo Bot
Crise Habitacional
Lajedo do Marinho
The project was carried out through a partnership between IFPB Campus Campina Grande and social agents from the Marinho District in the municipality of Boqueirão. It involves the creation of a website for tourist-educational empowerment in Lajedo do Marinho in Boqueirão/PB. I was able to contribute my skills and knowledge to create innovative and efficient solutions. Additionally, I worked in a team, collaborating effectively for the project's success. HTML, Java, PHP, and CSS were used for the website development
- Client: Social Agents from Lajedo do Marinho
- Services: Web Development
- Date: 1 Jan 2023
- Budget: R$2999+
The Lajedo do Marinho tourist site in Boqueirão/PB had zero digital presence — visitor reach was limited entirely to word-of-mouth.
Built a full website via an IFPB + community partnership, covering socio-historical research, image repository, content strategy, and HTML/PHP/CSS development.
Live at lajedodomarinho.com.br — the region's cultural heritage became discoverable nationwide for the first time.
Project Description
- Socio-historical research of Lajedo Marinho in Boqueirão/PB;
- Selective collection of strategic images of Lajedo do Marinho to organize a virtual image repository that constitutes the website;
- Cataloging of contents that make up the textual contribution in verbal language for the website;
- Development of templates for the website, based on pre-selected textual and image contents;
- Initiation of the effective construction phase of the website, under the supervision and monitoring of the group of social partners; and consolidation of the website.
Research on Lajedo Marinho
Conducted in-depth socio-historical research on Lajedo Marinho, providing key insights for cultural preservation.
Image Repository Organization
Strategically selected and organized images of Lajedo do Marinho, enhancing the visual appeal of the website.
Template Design and Construction
Created visually appealing templates, seamlessly integrating textual and visual content for an engaging website experience.
Ajardine Imóveis
Creation of a website for a real estate company with the goal of promoting properties for sale or rent, expanding the reach of advertisements, thereby increasing the number of sales.
- Client: Adriana Cecília
- Services: eCommerce Development - Web Development
- Date: 01 Sep 2023
- Budget: R$11999+
Real estate agency had no digital presence — all leads were phone-only, losing buyers who search for properties online.
End-to-end real estate platform with a property database, responsive layout, SEO, and strict brand adherence to the client's IDV manual.
Live at ajardine.com.br — digital presence expanded client reach well beyond the local market with measurable new inquiry volume.
Project Description
Market Analysis:
Conducted a thorough analysis of the real estate market to identify trends, target audience, and competitive landscape.
IDV Manual Adherence:
Ensured the website's design followed the IDV manual meticulously, covering aspects such as colors, fonts, and images to maintain brand consistency.
Content Strategy:
Developed a comprehensive content strategy, outlining the type of information to be featured on the website, including property details, images, and relevant textual content.
Database Integration:
Integrated a robust database system to manage and showcase properties efficiently, allowing for easy updates and modifications.
User Experience Optimization:
Implemented user-centric design principles to enhance the overall experience, including intuitive navigation, responsive layout, and clear calls-to-action.
SEO Implementation:
Applied search engine optimization (SEO) techniques to improve the website's visibility on search engines, ensuring a broader reach for property listings.
Image Gallery Management:
Created a visually appealing image gallery, showcasing property images in a way that aligns with the overall aesthetic and user experience.
Contact and Inquiry Forms:
Integrated user-friendly contact and inquiry forms, facilitating communication between potential clients and the real estate company.
Responsive Design:
Developed a responsive website design, ensuring optimal performance and usability across various devices and screen sizes.
Collaboration with Social Partners:
Collaborated closely with social partners during the construction phase, incorporating feedback and ensuring the website met the collective vision and goals.
Design Consistency with IDV Manual
Ensured a seamless integration of the website with the IDV manual created by Ajardine logo designers. Adhered to guidelines for colors, fonts, and images, maintaining brand consistency throughout the site.
Color Harmony Implementation
Implemented a cohesive color palette as specified in the IDV manual, enhancing the website's visual appeal and reinforcing brand identity.
Font and Image Alignment
Aligned fonts and images according to the IDV manual specifications, creating a unified and professional look across the website.
Promo Bot
A Python automation system that monitors Mercado Livre and Shopee for deals, filters them by discount, price range, category and coupon availability, generates branded product images and delivers curated affiliate promotions to multiple WhatsApp groups simultaneously — fully hands-off after setup.
- Type: Affiliate Marketing Automation
- Stack: Python · WhatsApp API · Shopee Affiliate API · Telethon
- Year: 2024
- Category: Automation · Affiliate
Running WhatsApp promo groups manually meant hours of searching deals across Mercado Livre and Shopee, converting links to affiliate URLs and formatting messages by hand.
Python system that polls ML + Shopee APIs, filters by discount %, price range, national/imported flag and coupon ratio, generates branded images and pushes affiliate-linked posts to multiple WhatsApp groups.
Zero manual effort after setup — multiple groups, each with its own category config, receive curated deals 24/7 with deduplication and ML coupon mirroring from Telegram channels.
Project Description
- Polls Mercado Livre and Shopee APIs on a configurable interval, filtering by minimum discount, price range and national/imported flag;
- Multi-group routing: each WhatsApp group has its own category JSON with keywords, so tech deals go to one group and beauty deals to another;
- Coupon-ratio engine (e.g. every 10 posts, at least 1 must have a coupon) with automatic fallback;
- Telegram userbot mirrors coupon posts from promo channels and re-delivers them to WhatsApp with affiliate links;
- Image generator wraps product photos in a branded frame (per-group configurable);
- Deduplication cache with 120h TTL prevents the same deal from being sent twice;
- Tier distribution system prioritises high-value deals (60% high / 30% mid / 10% low) per cycle.
Multi-group Routing
Each WhatsApp group has its own category config — tech deals, beauty, electronics — all managed from a single bot instance.
Telegram Mirror
Userbot watches curated Telegram promo channels and re-delivers ML coupon posts to WhatsApp with affiliate links injected automatically.
Smart Filtering
Discount threshold, price range, coupon ratio, tier distribution and a 120h dedup cache ensure only quality deals reach the groups.
Crise Habitacional — A Jornada da Família Sonhadora
Educational advergame that blends classic Pong mechanics with a social narrative about Brazil's housing crisis. The player takes the role of the Família Sonhadora, collecting bricks (homeownership milestones) while dodging eviction notices thrown by the Mercado Explorador antagonist. Built in Godot 4 with statically-typed GDScript — includes 4 difficulty modes, an in-game educational survey, a real-time global leaderboard, and standalone builds for Windows and Android.
- Type: Educational Advergame / Arcade
- Engine: Godot 4 · GDScript (strict static typing)
- Theme: SDG 11 — Sustainable Cities
- Year: 2024
- Platforms: Windows · Android · Web panel
- Size: ~600 KB standalone
A social awareness campaign needed high engagement and public opinion data — static materials failed to retain attention or generate actionable insights.
Godot 4 advergame with a 3-act narrative, 4 difficulty modes, a 6-question in-game survey, and a global online leaderboard — all in ~600 KB with zero external dependencies.
Survey responses collected automatically to Google Sheets with offline local backup; Competition mode features a real-time leaderboard synced across all devices via 5-second polling.
Project Description
- Pong mechanics adapted with a 3-act social narrative (opening, pre-match confrontation, ending cutscenes);
- 4 modes: Easy / Medium / Reality (10 bricks, 3 evictions) / Competition (survival + live ranking);
- 6-question educational survey intercalated into gameplay — answers sent to Google Sheets via HTTP POST, with offline local TXT backup (unique timestamped filename per device);
- Real-time global leaderboard via dreamlo.com API with 5-second auto-polling; standalone HTML panel (~12 KB) for projector / tablet / QR Code display;
- Characters with multiple poses and dynamic dialogue; original chiptune soundtrack (8 SFX + 2 tracks generated programmatically);
- Windows standalone build + Android fullscreen landscape with touch controls (left/right half-screen tap);
- Strict static typing throughout GDScript 4 with warnings treated as errors.
Integrated Research Survey
6 housing-crisis questions intercalated into gameplay. Answers go straight to Google Sheets with an offline local backup — unique timestamped filename per device guarantees zero data loss.
Real-time Online Ranking
Global leaderboard via dreamlo.com with 5-second polling — any run completed on any device instantly updates everyone's ranking. Standalone HTML panel for projector / tablet display via QR Code.
Social Narrative + SDG 11
"Reality" difficulty mirrors the lives of Brazil's 8 million people without adequate housing. Characters, cutscenes and antagonist dialogue reinforce the SDG 11 — Sustainable Cities message throughout.
Brasil Representações
Full institutional website for a company specialising in educational materials and equipment for public sector organisations. Built in WordPress, the site presents the company, its products, client testimonials, partners, a book catalogue and a contact form — with a professional design aligned to the brand's navy-blue and teal identity.
- Client: Brasil Representações / VN Soluções
- Stack: WordPress · CSS3 · JavaScript
- Services: Web Development · UI Design
- Start: 10 Apr 2025
- Delivery: 15 Jul 2025
- Duration: ~3 months
Educational materials supplier for public organisations had no digital presence — impossible to reach new municipalities and education secretariats without a professional institutional website.
Multi-section WordPress site with hero, secretary and director testimonials, partner logos, product catalogue, "Why choose us?" feature cards, and an About page with mission, vision and values.
Full digital presence delivered in 3 months — responsive, SEO-ready design aligned to the brand identity, with a content structure that scales as the product catalogue grows.
Project Description
- Institutional hero with a prominent CTA and a clear value proposition targeted at public sector managers;
- Testimonials section featuring reviews from Education Secretaries, School Principals and Pedagogical Coordinators;
- Partners section with supplier logo grid;
- Product catalogue and dedicated textbook catalogue area;
- "Why choose VN Soluções?" section with differentiator cards (experience, procurement ease, quality guarantee);
- "About us" page with mission, vision, values and an institutional photo;
- Responsive layout with a navy-blue / teal palette aligned to the brand identity;
- Integrated contact form.
Target Audience Focus
Copywriting and layout directed at municipal education managers and secretaries — institutional language that conveys credibility and simplicity in public procurement processes.
Cohesive Visual Identity
Navy-blue palette with teal accents, clean typography and children-in-education imagery — identity aligned to the brand's mission of transforming public education.
Strategic Social Proof
Testimonials from an Education Secretary, a School Principal and a Pedagogical Coordinator placed as social proof for decision-makers — the exact buyer profiles of the company's target market.
BE HUMBLE Bot
A Python Discord bot built to automate the full member onboarding flow on a Discord server. When a new member joins, the bot assigns a restricted role, sends a DM welcome message, collects four key pieces of information (nickname, full name, birthday and availability), reports them to a moderators-only channel, saves data to an XLSX spreadsheet, then renames the user and grants them full server access — all without admin intervention.
- Type: Discord Bot · Community Management
- Stack: Python · discord.py · openpyxl
- Category: Automation · Bot Development
- Year: 2024
- Commands: /Ping · /Limpar · /Embed · /Registro
Onboarding new Discord members manually was slow and error-prone — admins had to collect info, rename users, assign roles and log data one by one for every new arrival.
Python bot that automates the entire pipeline: restricted role on join → DM survey → moderator report → XLSX data logging → user rename and full role grant, with daily birthday checks as a bonus.
Zero admin effort per new member — the full onboarding flow runs autonomously; daily birthday messages boost community engagement automatically.
Project Description
- On member join: assigns a restricted role limiting access to an instructions channel, then sends a DM welcome message;
- DM survey collects 4 fields: Nickname, Full Name, Birthday and Available Hours;
- After survey completion, sends a formatted embed to a moderators-only channel with all collected data;
- Saves nickname and birthday to an XLSX spreadsheet (openpyxl) for persistent storage;
- Renames the user with the provided nickname, removes the restricted role and grants the full-access role — all automatically;
- Daily birthday checker reads the spreadsheet and sends an embed mention in the general channel for any member celebrating that day;
- 4 slash commands: /Ping (latency), /Limpar (bulk delete, mods only), /Embed (custom embed builder), /Registro (manual survey trigger without rename/role change).
Automated Onboarding
Full pipeline from join event to full server access — restricted role, DM survey, moderator notification, XLSX logging, rename and role upgrade, all without a single admin click.
Birthday System
Daily async task reads the XLSX sheet and fires an embed mention in the general channel for every member whose birthday matches the current date.
Slash Commands
Four utility commands: latency check, moderator-only bulk message deletion, custom embed builder and a manual registration flow for existing members.
Published Work
IA burlada: elaboração de prompts maliciosos no ChatGPT e seus impactos para a sociedade
Investigates the creation of malicious prompts capable of bypassing ChatGPT's safety filters and analyses the societal impacts of such techniques, including misinformation, fraud, and the erosion of AI trust. Published by the Brazilian Computer Society (SBC).
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- Campina Grande - PB
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