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Full Stack Software Engineer with 4 years of experience building scalable web applications and distributed systems using React, Node.js (NestJS/Express), Next.js, and C#/.NET. Skilled in microservices, REST APIs, and event-driven solutions to improve performance, scalability, and resilience. I develop responsive, accessible UIs with strong performance optimization, reusability, and clean architecture. I’m a collaborative Agile/Scrum team member who focuses on delivering well-documented, high-quality, customer-focused solutions and actively shares knowledge to strengthen the team.…Full Stack Software Engineer with 4 years of experience building scalable web applications and distributed systems using React, Node.js (NestJS/Express), Next.js, and C#/.NET. Skilled in microservices, REST APIs, and event-driven solutions to improve performance, scalability, and resilience. I develop responsive, accessible UIs with strong performance optimization, reusability, and clean architecture. I’m a collaborative Agile/Scrum team member who focuses on delivering well-documented, high-quality, customer-focused solutions and actively shares knowledge to strengthen the team.

Marcus Dantas

Full Stack Developer, Software Engineer, Back-End Developer, +2

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Full Stack Software Engineer with 4 years of experience building scalable web applications and distributed systems using React, Node.js (NestJS/Express), Next.js, and C#/.NET. Skilled in microservices, REST APIs, and event-driven solutions to improve performance, scalability, and resilience. I develop responsive, accessible UIs with strong performance optimization, reusability, and clean architecture. I’m a collaborative Agile/Scrum team member who focuses on delivering well-documented, high-quality, customer-focused solutions and actively shares knowledge to strengthen the team.…Full Stack Software Engineer with 4 years of experience building scalable web applications and distributed systems using React, Node.js (NestJS/Express), Next.js, and C#/.NET. Skilled in microservices, REST APIs, and event-driven solutions to improve performance, scalability, and resilience. I develop responsive, accessible UIs with strong performance optimization, reusability, and clean architecture. I’m a collaborative Agile/Scrum team member who focuses on delivering well-documented, high-quality, customer-focused solutions and actively shares knowledge to strengthen the team.

Available to hire

Full Stack Software Engineer with 4 years of experience building scalable web applications and distributed systems using React, Node.js (NestJS/Express), Next.js, and C#/.NET. Skilled in microservices, REST APIs, and event-driven solutions to improve performance, scalability, and resilience.

I develop responsive, accessible UIs with strong performance optimization, reusability, and clean architecture. I’m a collaborative Agile/Scrum team member who focuses on delivering well-documented, high-quality, customer-focused solutions and actively shares knowledge to strengthen the team.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Portuguese

Fluent

Work Experience

Software Engineer at Monument

December 1, 2025 - Present

Worked on a SaaS platform for self-storage operators across 10+ U.S. states, handling $1M+ monthly payments. Built and improved features across billing, payments, and tenant operations using React, Node.js (TypeScript), MySQL, and AWS. Implemented surcharge support to recover 1–3% in credit-card processing fees previously absorbed by operators. Reduced document turnaround times from days to minutes by building a document-generation and e-signature framework. Eliminated 100% of manual tax reversals for tax-exempt organizations by designing an end-to-end tax-exemption system (invoice generation, adjustments, recurring services). Improved billing query performance by 70% using SQL optimization, targeted indexing, and join reduction based on business/domain knowledge. Led a responsiveness initiative for full property-management workflows on mobile, improving responsiveness and reducing INP on core pages.

Software Engineer at Jalasoft

January 1, 2024 - December 1, 2025

Contracted for a mid-sized U.S. company providing global workforce management solutions (employee engagement, finance, recruitment). Contributed to modernization of a legacy .NET (Razor/C#) system by extending a Node.js Backend-for-Frontend (BFF) REST API and a React (Material UI, Redux) SPA. Reduced HTTP requests and improved performance by enabling reusable UI components, responsive design, and accessibility compliance. Reduced API response time by 80% by integrating the BFF with an email microservice via Azure Service Bus, converting synchronous email calls into asynchronous processing. Improved UI performance by increasing FPS (11 to 35) and reducing INP by 150+ ms using list virtualization. Cut build cycle time from 2 minutes to near-instant updates by optimizing workflow in a .NET MVC + React project, avoiding rebuilding React on every change.

Full Stack Developer at Driven Education

October 1, 2022 - December 1, 2023

Implemented new features and enhancements in a Next.js (React, Tailwind CSS) application with a Node.js REST API for Driven Education, an EdTech startup. Supported student task management, deadlines, reminders, and study schedule organization. Built a Student Progress Dashboard using an internal GraphQL API to show task completion, grades, and overall learning progress. Designed and implemented a microservice integrating with Microsoft Graph API for Outlook calendar event management. Deployed and managed services on AWS (EC2, S3, SNS) to ensure reliable, scalable, and secure hosting.