Freelance Backend Engineers in São PauloFreelance Backend Engineers in São Paulo
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Fernando Freitas's avatar
Fernando Freitas
São Bernardo do Campo, Brazil
AI & ML Engineer | Full Stack, data-driven solutions expert
AI & ML Engineer | Full Stack, data-driven solutions expert
Cover image for Gmail AI | AI agent for email auto labeling
Gmail AI | AI agent for email auto labeling
3
25
Cover image for 2048 | Full-stack replica in a web app
2048 | Full-stack replica in a web app
4
14
Cover image for Copilot | AI assistant for data exploration
Copilot | AI assistant for data exploration
3
12
Cover image for Insights AI | Web app for auto data analysis
Insights AI | Web app for auto data analysis
3
13
Backend Engineer(2)
André Felipe Rosa's avatar
André Felipe Rosa
São Paulo, Brazil
web develop build responsive and modern websites
New to Contra
web develop build responsive and modern websites
Cover image for Built an Educational SaaS MVP
Built an Educational SaaS MVP
0
1
Cover image for AI Keyword Generator SaaS A modern
AI Keyword Generator SaaS A modern
0
1
Cover image for Task Management REST API Developed a
Task Management REST API Developed a
0
0
Cover image for FIVAM - Full Stack Frontend
FIVAM - Full Stack Frontend
0
0
Backend Engineer(4)
Eduardo Batalha's avatar
Eduardo Batalha
São Paulo, Brazil
Creative Fullstack Engineer 🚀
Creative Fullstack Engineer 🚀
Cover image for Product Management API
Product Management API
0
17
Cover image for Registration System
Registration System
0
2
Cover image for Adress Info Verificator app
Adress Info Verificator app
0
12
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Backend Engineer(2)
Pedro Welison's avatar
Pedro Welison
São Paulo, Brazil
Full-Stack Developer | Python, Automation & Data
New to Contra
Full-Stack Developer | Python, Automation & Data
Cover image for Rule-Driven Probability & Conditional Logic Calculator
Rule-Driven Probability & Conditional Logic Calculator
0
7
Cover image for Automated Data Pipeline & Cloud Publishing Workflow
Automated Data Pipeline & Cloud Publishing Workflow
0
5
Cover image for THE CHALLENGE Client relationships become difficult
THE CHALLENGE Client relationships become difficult to manage when projects, conversations, account health, and revenue signals live in separate places. THE SOLUTION Clientio is a client management SaaS concept that gives teams one clear view of clients, active work, project health, timelines, and the next conversation. WHAT I BUILT • Client portfolio and health indicators • Project status, revenue, and timeline views • Central inbox and client activity feed • Responsive management dashboard • Clear information hierarchy for daily account work DESIGN APPROACH A bright blue workspace with warm orange highlights makes dense operational data approachable while preserving a confident professional feel. THE OUTCOME A polished CRM product demonstration combining product strategy, dashboard UX, visual design, and frontend engineering. LIVE PRODUCT https://clientio-saas-demo.almond-bowl-2897.chatgpt.site
0
45
Cover image for THE CHALLENGE Revenue teams lose momentum
THE CHALLENGE Revenue teams lose momentum when leads sit between a form submission, qualification, routing, and the next meaningful follow-up. THE SOLUTION Pipelin is a lead automation platform concept that captures, qualifies, and routes prospects without manual follow-up. It makes the flow of work visible from first signal to sales ownership. WHAT I BUILT • Visual lead-capture and routing workflow • Qualification rules with scoring thresholds • Automated welcome and nurture sequences • Real-time activity feed and pipeline analytics • Routing controls for market, company size, and priority • Responsive dark-mode SaaS dashboard DESIGN APPROACH A high-contrast operations interface uses deep navy, teal, and lime signals to make automation states, decisions, and performance easy to understand at a glance. THE OUTCOME A deployment-ready product demonstration combining workflow UX, data visualization, automation strategy, and frontend engineering. LIVE PRODUCT https://pipelin-automations-demo.almond-bowl-2897.chatgpt.site
0
46
Backend Engineer(2)
Henrique Oliveira Dos Santos's avatar
Henrique Oliveira Dos Santos
São Paulo, Brazil
Certified AWS Architect & DevOps Engineer
Certified AWS Architect & DevOps Engineer
Cover image for Programe.TECH
Programe.TECH
0
15
Cover image for HenriqueOs98/-Haunted-House-Three.js
HenriqueOs98/-Haunted-House-Three.js
0
32
Cover image for HenriqueOs98/sb-backend-challenge
HenriqueOs98/sb-backend-challenge
0
11
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Backend Engineer(1)
Felipe Silva Lima's avatar
Felipe Silva Lima
São Paulo, Brazil
Fullstack Developer & UI/UX Designer
Fullstack Developer & UI/UX Designer
Cover image for D&D Adventure Manager App
D&D Adventure Manager App
1
20
Cover image for RSVP Webapp for Wedding
RSVP Webapp for Wedding
0
19
Cover image for Plataform for medical Staudies
Plataform for medical Staudies
0
24
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Backend Engineer(1)
Lucas Nicolau's avatar
Lucas Nicolau
São Paulo, Brazil
Expert Mobile Apps with Flutter & React Native
5.0
Rating
2
Followers
Expert Mobile Apps with Flutter & React Native
Cover image for Teacher AI
Teacher AI
1
27
Cover image for Digital Version of "Choreography Cards for Pole Dancers"
Digital Version of "Choreography Cards for Pole Dancers"
0
34
Cover image for Secure Banking Application for Neon
Secure Banking Application for Neon
0
46
Cover image for Open Source Podcast App using TuneURL SDK
Open Source Podcast App using TuneURL SDK
0
28
Backend Engineer(1)