M
Marcos Vinícius Ferreira Nulman
From Brazil
03:15 PM
(GMT-03:00)
$25/hr
or
$100,000/yr
Active 1 hour ago
Frontend Developer
Front-end Engineer
Available for hire
Years of
experience
4+ years
Experience
level
Mid-level
Available
for
Full-time, Contract
Available from
24 Aug 2026
I'm a Frontend Developer with 4+ years of experience building scalable, responsive, and user-focused web applications, mainly with React, TypeScript, and modern frontend technologies.
What makes my journey a little different is my background beyond software development. Before becoming a developer, I worked in areas such as sales, operations, and marketing, which gave me a strong understanding of users, business needs, and communication.
Throughout my frontend career, I've worked on large applications, improved performance, modernized legacy codebases, built reusable component systems, implemented automated tests, and collaborated closely with product, design, and backend teams.
I'm currently looking for a Mid-Level Frontend Developer role where I can continue growing technically, contribute to meaningful products, and work with a collaborative team that values clean code, good user experiences, and continuous improvement.
Skills
Languages
Employment History
Mid-Level Frontend Developer at
Laclaw Consultoria Tributária
Current
2026
-
Now
Develop and enhance a corporate web platform for tax and fiscal management using React, TypeScript, Vite, and Material UI, contributing to more than 30 modules, including SPED, tax return amendments, reports, document management, Lei do Bem, tax reports, and access permissions.
Build scalable interfaces and reusable components, contributing to greater application standardization, reduced code duplication, and faster delivery of new features.
Develop features integrated with Artificial Intelligence services, including prompt execution, processing history, response validation, and token usage and cost tracking.
Build complex form flows, validations, and state management using React Hook Form, Zod, React Query, Redux Toolkit, and Zustand.
Participate in the continuous development and delivery workflow through Azure DevOps, including version control, branch organization, boards, code reviews, and deployments.
Collaborate with backend and product teams to define and deliver new features, contributing to more efficient development cycles and reduced rework.
Frontend Developer at
Troupe Tecnologia
2022
-
2026
Contributed directly to the implementation and evolution of the Educa Digital system for the municipalities of Bragança Paulista, Valinhos, and Cosmópolis, continuously developing and improving a platform used by 3,500+ monthly users including administrators, teachers, students, and education teams, ensuring day-to-day stability, performance, and usability.
Refactored the legacy design system (Semantic UI + Styled Components) into a more modern stack using shadcn/ui + Tailwind CSS, reducing development time for new screens by up to 30% through more reusable and performant components.
Migrated the build setup from Create React App to Vite, reducing build time by 40-60%, cutting development reload time by more than 70%, and providing a smoother development experience.
Contributed to the development of PEI (Individualized Education Plan) within the Educa Digital system for schools in Valinhos, Cosmópolis, and Bragança Paulista.
Implemented unit tests with Jest, later migrating to Vitest and React Testing Library, improving code reliability and reducing recurring issues, which cut team rework time by approximately 20-30%.
Collaborated directly with backend and UI/UX teams, accelerating bug identification and helping shorten release cycles by an average of 15% through smoother cross-functional communication and faster response times.
WordPress Developer at
Hagooa Agency
2021
-
2022
Implemented WordPress project management practices, helping accelerate delivery of new pages by up to 25% through more organized processes.
Performed troubleshooting and fixes with an average response time of under 24 hours, ensuring high website availability.
Monitored and applied WordPress ecosystem best practices and trends (themes, plugins, and SEO), improving average project performance by 20-30% (PageSpeed).
Operations Assistant at
Yamit FS (Israel)
2020
-
2021
Successfully trained new team members, significantly raising service quality standards.
Played a key role in streamlining internal organizational processes, resulting in a highly efficient and agile daily workflow.
Supported a comprehensive quantitative analysis of internally used products, helping reduce unnecessary expenses and optimize the budget.
Oversaw the overall management of received and stored materials, ensuring efficient control and organization.
Sales Executive at
Lider Saúde Ocupacional
2014
-
2019
Played a key role in supporting the implementation of the SIGO W3 system, a comprehensive software solution used to manage the company's departments and processes, supporting smooth end-to-end operations.
Proactively identified and targeted prospective clients, contributing to the development of new business opportunities.
Developed engaging graphic and informational content for the company website and social media platforms.
Actively participated in the strategic redesign of the company's visual identity, brand positioning, and the creation of a new website.
Prepared commercial proposals and contracts, negotiating agreements with new and existing clients through in-person meetings.
Played a key role in maintaining and strengthening partnerships among the company, clients, and suppliers.
Managed partner and supplier accreditation nationwide, ensuring compliance with company standards and requirements.
Education
Bachelor of Computer Science at
Centro Universitário FAM
Current
2026
-
Now
Full Stack Developer Bootcamp at
Developers Institute (Israel)
2021
-
2021
Associate Degree in Marketing Management at
Centro Universitário FMU
2015
-
2017