Senior Software Engineer | React, Next.js, Node.js I turn business ideas into solid, scalable digital products — with clarity, quality, and technical precision. Key achievements: • Built a facial recognition system integrated with cloud services, enabling secure document validation for a large financial organization. • Completely redesigned the frontend of a core platform responsible for risk prevention of multi-million losses in a large financial organization, significantly improving stability and usability. • Developed a full-featured coupon platform in record time for a fast-growing startup, contributing to the acquisition of thousands of new users. • Delivered custom e-commerce and SaaS platforms with smart dashboards, automations, and conversion-optimized UX. From MVPs to robust digital infrastructures, I focus on real results that support growth and long-term success. Let’s bring your vision to life with confidence.…

Valdery Alves Paes Júnior

Senior Software Engineer | React, Next.js, Node.js I turn business ideas into solid, scalable digital products — with clarity, quality, and technical precision. Key achievements: • Built a facial recognition system integrated with cloud services, enabling secure document validation for a large financial organization. • Completely redesigned the frontend of a core platform responsible for risk prevention of multi-million losses in a large financial organization, significantly improving stability and usability. • Developed a full-featured coupon platform in record time for a fast-growing startup, contributing to the acquisition of thousands of new users. • Delivered custom e-commerce and SaaS platforms with smart dashboards, automations, and conversion-optimized UX. From MVPs to robust digital infrastructures, I focus on real results that support growth and long-term success. Let’s bring your vision to life with confidence.…

Available to hire

Senior Software Engineer | React, Next.js, Node.js
I turn business ideas into solid, scalable digital products — with clarity, quality, and technical precision.

Key achievements:
• Built a facial recognition system integrated with cloud services, enabling secure document validation for a large financial organization.
• Completely redesigned the frontend of a core platform responsible for risk prevention of multi-million losses in a large financial organization, significantly improving stability and usability.
• Developed a full-featured coupon platform in record time for a fast-growing startup, contributing to the acquisition of thousands of new users.
• Delivered custom e-commerce and SaaS platforms with smart dashboards, automations, and conversion-optimized UX.

From MVPs to robust digital infrastructures, I focus on real results that support growth and long-term success.
Let’s bring your vision to life with confidence.

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Skills

Experience Level

JavaScript
Expert
MongoDB
Expert
MySQL
Expert
Node.js
Expert
PostgreSQL
Expert
React JS
Expert
TypeScript
Expert
Amazon Web Services
Intermediate

Language

English
Advanced
Portuguese
Fluent

Work Experience

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Education

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Qualifications

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Industry Experience

Software & Internet, Financial Services, Professional Services
    Njord Store — Whitelabel Marketplace
    Njord Store is a premium-grade e-commerce and marketplace platform built for businesses that sell with elegance and scale — the kind of brands that need more than a basic store. Inspired by the quality level of companies like Nike, the platform delivers a fully customizable shopping experience. I led the full development using React, Next.js, Node.js, and TypeScript, focusing on performance, security, and maintainability. Key contributions included: User authentication and role-based access, ensuring a secure multi-tenant experience. Dynamic project configuration flows that allow each client to tailor their version of the platform — from visual branding to functional modules — adapting the same core structure for different businesses. High-performance backend supporting real-time dashboards, sales analytics, and advanced marketplace interactions. The platform is not just elegant — it’s technically robust and designed for brands that care about long-term growth, data security, and customer experience.…
    Marketplace Whitelabel
    I designed and developed this complete multivendor marketplace solution — from backend to frontend and UI/UX. The platform includes both a full-featured admin dashboard (for managing products, users, companies, permissions, promotions and orders) and a client-facing marketplace, where users can register, log in, manage addresses, browse menus and stores, add products to the cart, and complete purchases with a real-time order tracking flow. Built to be modular and easily customizable, this project can be adapted to serve different business niches (ecommerce, food delivery, services, etc.). I handled everything solo: backend (Node.js), frontend (React + Next.js), database structure, UI design and application architecture.…
    Landing page Animators Club
    I designed and developed this sales landing page for an online course on video creation with AI. The page not only promotes the course but also offers access to exclusive AI tools for students. I wrote all the copywriting, crafted the visual design, and structured the layout to drive conversions with clarity and impact. The project is fully integrated with Google Tag Manager and Meta Pixel, enabling precise event tracking and performance analysis across traffic sources — essential for scaling paid media campaigns. Stack: React • Next.js • TypeScript • Conversion-focused design react softwareengineer webdesigner…