Fernando Camargo Del Buono - Senior Front-End Developer

Q: Where is Fernando based?

Fernando is based in Berlin, Germany .

Q: What languages does Fernando speak?

Fernando speaks the following languages: Portuguese (Native), English (Advanced) .

Q: How many years of experience does Fernando have?

Fernando has at least 9 years of experience. During this time, Fernando has worked in at least 2 different roles and for 7 different companies . The average length of individual experience is 1 year and 4 months . Note that Fernando may not have shared all experience and actually has more experience.

Q: What is Fernando's latest experience?

Fernando's most recent position is Senior Front-End Developer at Moss .

Q: What companies has Fernando worked for in recent years?

In recent years, Fernando has worked for Moss , Solsten , and expertlead .

Q: Which industries is Fernando most experienced in?

Fernando is most experienced in industries like Information Technology (IT) , Banking and Finance , and Tourism and Hospitality . Fernando also has some experience in Retail .

Q: Which business areas is Fernando most experienced in?

Fernando is most experienced in business areas like Information Technology (IT) , Product Development , and Accounting . Fernando also has some experience in Procurement and Purchasing .

Q: Which industries has Fernando worked in recently?

Fernando has recently worked in industries like Information Technology (IT) and Banking and Finance .

Q: Which business areas has Fernando worked in recently?

Fernando has recently worked in business areas like Information Technology (IT) , Product Development , and Accounting .

Recommended expert

Berlin, Germany

Experience

Jul 2024 - Present

1 year 8 months

Senior Front-End Developer

Moss

Moss is a spend-management platform for SMEs that bundles corporate cards, web-based applications and reimbursements, AP/procurement and advanced accounting in one place.
Splits time across Accounting, Spending and Growth tribes, handling requirements gathering, public product design, coding, testing, debugging and internal apps.
Participates in development and maintenance of the design system/UI kit and supports tooling, documentation and developer experience.
Builds form-heavy UIs, drawer-based editing, high-density/resilient tables with server-side filters, pagination, column configurations, CSV/Excel export and bulk operations, all wired for permissions and auditability.
Works with complex cross-entity relationships without a single-schema solution.
Uses React, Redux Toolkit, styled-components, react-hook-form, React PDF, Vite, Lokalise, React Testing Library and Playwright.

Aug 2022 - Jul 2024

2 years

Berlin, Germany

Senior Front-End Developer

Solsten

Developed dashboards segmented into two products (Traits and Navigator) with extensive functionalities and complex state and business rules.
Implemented user profile-based permissions, preview mode with UI obfuscation and data shuffling, and white labeling with external authentication.
Employed D3 visualizations to clarify intricate system information, entities and relationships.
Translated requirements into detailed design and UX artifacts and collaborated with the front-end team to relieve backlog and address technical debt.
Working on a greenfield project with LLM, implementing application-level architecture layers, ergonomic APIs (i18n, mocked content, external authentication, persistence via query parameters), experiments, prototypes and POCs.
Migrated existing solutions for better scalability: replaced CSS modules with styled-components, removed Redux Saga in favor of Redux Toolkit; migrating useEffect to XState and React Router loaders; exploring GraphQL and schema-based solutions with extensive refactoring into composable parts.

Dec 2019 - Jul 2022

2 years 8 months

Berlin, Germany

Senior Front-End Developer

expertlead

Led reviews of major front-end development decisions and maintained core products.
Ported rudimentary, class-based components into an extensible hooks-based architecture.
Created the company’s most complex UI product from scratch: a tool for conducting candidate interviews with question selection by category and difficulty, interview execution and performance reporting.
Evolved architecture using macros to reduce code complexity and boilerplate.
Led form manager projects using macros and Formik and developed presentation components for an internal design system.
Mentored peers on React philosophy and mental models.

Jun 2018 - Dec 2019

1 year 7 months

Berlin, Germany

Senior Front-End Developer

Sellics

Designed and developed a front-end architecture uniformly adopted across products to accelerate creation of screens and dashboard functionalities.
Migrated existing features from a Java/JSF monolith to React as a pilot.
Abstracted Redux and redux-persist to simplify state management, reduce boilerplate and define persistence via browser local storage; open-sourced this layer.
Created a package to manage asynchronous operations with retry, undo and optimistic updates.
Implemented key dashboard components (currency, modal, form, table, recursive tree structures) focusing on behavior over visuals, migrating from recompose to hooks.

Nov 2016 - Apr 2018

1 year 6 months

Bamberg, Germany

Lead Front-End Developer

Artirigo/Proxipedia

Maintained a content management system feeding mobile app and website using React, Redux, Immutable, Reselect, Redux Saga, UI Material components, React DnD, React Intl and React Router, built with Webpack via Create React App.
As Lead Front-End Developer, re-created the product from scratch, shifting architecture from content-entity focus (tours, views, attractions) to feature-centric (datasets, forms).
Aimed to shrink the codebase surface and share behaviors via components and higher-order components (Recompose).

Sep 2016 - Mar 2017

7 months

São Paulo, Brazil

Lead Front-End Developer

B2W/Skyhub

Headed future front-end team, delivered new features and reviewed technical debt.
Continued migration to React and Redux/Webpack from jQuery-bound backend views.
Developed prototypes and led meetings across marketing, support, sales and development to approve concepts.
Collaborated with backend on API design and with designer on visual identity.
Built the application core with a complex routing layer enabling recursive cross-content navigation.

Sep 2016 - Mar 2017

7 months

São Paulo, Brazil

Senior Front-End Developer

Love Mondays

Coded and architected front-end solutions for desktop, tablet and smartphone using HTML5, CSS3, JavaScript and jQuery plugins.
Created new features and refactored existing ones, notably the first customers/companies section with multiple data and report views using Highcharts.
Proposed SPA migration to React but faced SSR and SEO concerns.
Improved user experience by summarizing information, reducing clicks and drafting concepts that influenced later changes.

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (8 years), Banking and Finance (1.5 years), Tourism (1.5 years), and Retail (0.5 years).

Information Technology

Banking and Finance

Tourism

Retail

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (9.5 years), Product Development (7.5 years), Accounting (1.5 years), and Procurement (1.5 years).

Information Technology

Product Development

Accounting

Procurement

Summary

Passionate developer focused on crafting high-quality solutions for web-based applications and interactive websites. Extensive background across the full software development lifecycle, including requirements gathering, design, coding, testing, debugging, and maintenance. Proven track record of designing and implementing flexible solutions that support frequent changes to UI and functionality

Skills

Methodologies & Approaches

Object-oriented Analysis And Design
Design Patterns, Mvc
Agile, Scrum, Pair Programming
Test-driven Development, Behavior-driven Development, Refactoring
Responsive Web Design, Progressive Enhancement
Usability, Accessibility, User Experience Design
Web Services, Rest, Soap
Web Standards
Module Definitions/formats, Amd, Commonjs
Microformats & Seo Techniques

Personal

Motion Development
Ability To Simultaneously Address Multiple Projects And Manage Priorities And Deadlines
Excellent Communication With Technical And Non-technical People
Responsible, Self-organized, Self-taught, Proactive
Team Integration, Motivation, Coaching
Taste For Challenges, New Technologies, Innovative Projects
Agency Experience In A Creative Environment
Eye For Detail, Performance, Optimization

Languages

Portuguese

Native

English

Advanced

Profile

Created

January 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Fernando based?

Fernando is based in Berlin, Germany.

What languages does Fernando speak?

Fernando speaks the following languages: Portuguese (Native), English (Advanced).

How many years of experience does Fernando have?

Fernando has at least 9 years of experience. During this time, Fernando has worked in at least 2 different roles and for 7 different companies. The average length of individual experience is 1 year and 4 months. Note that Fernando may not have shared all experience and actually has more experience.

What roles would Fernando be best suited for?

Based on recent experience, Fernando would be well-suited for roles such as: Senior Front-End Developer, Lead Front-End Developer.

What is Fernando's latest experience?

Fernando's most recent position is Senior Front-End Developer at Moss.

What companies has Fernando worked for in recent years?

In recent years, Fernando has worked for Moss, Solsten, and expertlead.

Which industries is Fernando most experienced in?

Fernando is most experienced in industries like Information Technology (IT), Banking and Finance, and Tourism and Hospitality. Fernando also has some experience in Retail.

Which business areas is Fernando most experienced in?

Fernando is most experienced in business areas like Information Technology (IT), Product Development, and Accounting. Fernando also has some experience in Procurement and Purchasing.

Which industries has Fernando worked in recently?

Fernando has recently worked in industries like Information Technology (IT) and Banking and Finance.

Which business areas has Fernando worked in recently?

Fernando has recently worked in business areas like Information Technology (IT), Product Development, and Accounting.

What is the availability of Fernando?

Fernando is immediately available full-time for suitable projects.

What is the rate of Fernando?

Fernando's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.