Stefan Mares - Frontend Engineer

Q: Where is Stefan based?

Stefan is based in Brașov, Romania and prefers 100% remote projects.

Q: What languages does Stefan speak?

Stefan speaks the following languages: English (Advanced), Romanian (Advanced) .

Q: How many years of experience does Stefan have?

Stefan has at least 7 years of experience. During this time, Stefan has worked in at least 2 different roles and for 3 different companies . The average length of individual experience is 1 year and 2 months . Note that Stefan may not have shared all experience and actually has more experience.

Q: What is Stefan's latest experience?

Stefan's most recent position is Senior React Frontend Engineer at Milo Solutions .

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

In recent years, Stefan has worked for Milo Solutions , Endava , and Cerner .

Q: Which industries is Stefan most experienced in?

Stefan is most experienced in industries like Information Technology (IT) , Healthcare , and Real Estate .

Q: Which business areas is Stefan most experienced in?

Stefan is most experienced in business areas like Information Technology (IT) , Product Development , and Business Intelligence . Stefan also has some experience in Marketing and Quality Assurance (QA) .

Q: Which industries has Stefan worked in recently?

Stefan has recently worked in industries like Information Technology (IT) , Healthcare , and Real Estate .

Q: Which business areas has Stefan worked in recently?

Stefan has recently worked in business areas like Information Technology (IT) , Product Development , and Business Intelligence .

Recommended expert

Brașov, Romania

Experience

Jan 2025 - May 2025

5 months

Brașov, Romania

Senior React Frontend Engineer

Milo Solutions

Led frontend development of an internal MVP for Viewly, a real estate scheduling platform designed to automate and streamline property viewing bookings for agents and clients.
Built a performant dashboard using React, TypeScript, and Mantine UI, enabling users to manage viewings, plan and share invites, and review historical activity.
Delivered account management features and custom audio-player components for voice introductions.
Developed the marketing landing page, integrating Google Tag Manager, Google Analytics, Hotjar, and Cookiebot for analytics, tracking, and consent management.
Applied SEO best practices including meta descriptions, semantic tags, and structured content.
Collaborated closely with backend, marketing, and UX teams to make key architectural decisions around communication patterns, infinite pagination, and overall code and app quality.

Jan 2025 - Mar 2025

3 months

Senior React Frontend Engineer

Milo Solutions

Built the store management page using React with TypeScript and Mantine UI, allowing store owners to manage and assign users and devices to stores.
Implemented the recommendations page featuring tables, audio players, and audio transcripts using React, Mantine UI, and Wavesurfer.js, supporting playback and review of 100+ audio sessions per day.
Ensured a clean code solution and a user-friendly app by collaborating with the UX/UI designer and focusing on features such as filters, authentication flow, and error handling.

Jan 2023 - Dec 2025

3 years

Senior React Frontend Engineer

Milo Solutions

Built interactive charts with Chart.js and implemented feature-rich forms for data comparisons, attachments, and logs.
Enhanced forms and tables with sorting, filtering, and customizable options for improved usability.
Integrated React with paged.js to implement PDF exports for four application modules, enhancing report generation, sharing, and printing functionality.
Created multiple dashboards and data comparison pages using React, Chart.js, and Ant Design to offer a seamless and interactive data viewing experience.
Collaborated on seamless integration of new features and functionalities into the UI within an Agile environment.

Jan 2022 - Mar 2022

3 months

Senior React Frontend Engineer

Endava

Rebranded three parts of the application including the login flow, main pages, and shipment pages using React and SCSS modules.
Implemented accessibility improvements for color contrast, UI labels, and error messages for edge cases in collaboration with the UI/UX designer.
Added unit tests and fixed reported vulnerabilities for critical components using React, Jest, JavaScript, and SonarQube, doubling the code quality of the codebase.

Jan 2021 - Dec 2022

2 years

Senior React Frontend Engineer

Endava

Migrated component styling from SCSS to JSS to achieve a 100% match between application functionality and new styling.
Refactored components to React functional components with inline styling and covered them with unit tests, passing all quality gates.
Maintained strong communication with the tech lead to understand project requirements and implement conversions effectively.

Jan 2019 - Dec 2021

3 years

React Frontend Engineer

Cerner

Implemented responsive UI components using React with TypeScript, HTML, and CSS to ensure 100% device type compatibility.
Developed an optimization algorithm that automatically adjusts UI component responsiveness, reducing application maintenance time by 50%.

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 (5 years), Healthcare (3 years), and Real Estate (0.5 years).

Information Technology

Healthcare

Real Estate

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 (7 years), Product Development (6 years), Business Intelligence (3 years), and Marketing (0.5 years).

Information Technology

Product Development

Business Intelligence

Marketing

Summary

I am a senior React engineer / Contractor / Freelancer with 6+ years of experience. I use my enthusiasm and attention, along with my skills and expertise, to develop high-quality User Interfaces for businesses around the world. Need to transform your Business Digital Presence? Let’s connect!

Skills

Javascript, Typescript 6 Years
Html, Css, Scss 6 Years
React Js 6 Years
React Query 3 Years
Next Js 1 Year
Git 6 Years
Tailwind Css 2 Years
Node Js 1 Year
Aws 1 Year
Firebase 1 Year
Supabase 1 Year
Figma 6 Years
Angular 8+ 3 Years
Agile Work 6 Years
Jest 4 Years
Jenkins 3 Years
Storybook 2 Years
Sonarqube 3 Years
Cloudflare 1 Year
Azure Devops 1 Year

Languages

English

Advanced

Romanian

Advanced

Education

Oct 2017 - Jun 2020

Transilvania University

Bachelor in Computer Science · Computer Science · Brașov, Romania

Profile

Created

February 2026

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Frequently asked questions

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

Where is Stefan based?

Stefan is based in Brașov, Romania and prefers 100% remote projects.

What languages does Stefan speak?

Stefan speaks the following languages: English (Advanced), Romanian (Advanced).

How many years of experience does Stefan have?

Stefan has at least 7 years of experience. During this time, Stefan has worked in at least 2 different roles and for 3 different companies. The average length of individual experience is 1 year and 2 months. Note that Stefan may not have shared all experience and actually has more experience.

What roles would Stefan be best suited for?

Based on recent experience, Stefan would be well-suited for roles such as: Senior React Frontend Engineer, React Frontend Engineer.

What is Stefan's latest experience?

Stefan's most recent position is Senior React Frontend Engineer at Milo Solutions.

What companies has Stefan worked for in recent years?

In recent years, Stefan has worked for Milo Solutions, Endava, and Cerner.

Which industries is Stefan most experienced in?

Stefan is most experienced in industries like Information Technology (IT), Healthcare, and Real Estate.

Which business areas is Stefan most experienced in?

Stefan is most experienced in business areas like Information Technology (IT), Product Development, and Business Intelligence. Stefan also has some experience in Marketing and Quality Assurance (QA).

Which industries has Stefan worked in recently?

Stefan has recently worked in industries like Information Technology (IT), Healthcare, and Real Estate.

Which business areas has Stefan worked in recently?

Stefan has recently worked in business areas like Information Technology (IT), Product Development, and Business Intelligence.

What is Stefan's education?

Stefan holds a Bachelor in Computer Science from Transilvania University.

What is the availability of Stefan?

Stefan is immediately available part-time for suitable projects.

What is the rate of Stefan?

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