05/19/2026 updated

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100 % available

Senior Frontend Developer

Budapest, Hungary
Only remote
N/A
Budapest, Hungary
Only remote
N/A

Profile attachments

mherczeg-cv.pdf

About me

I am a Hungarian software developer with 15+ years of professional experience, specializing in frontend development. I primarily work with the Angular and React stacks, amd I have a strong specialization in automation, encompassing CI/CD processes and end-to-end testing

JavaScriptBusiness Transaction ManagementArchitectureAutomationTest AutomationDatabasesContinuous IntegrationUser Interface DesignTypeScriptTypingTestingReact.jsCypress (Programming Language)Puppeteer (Software)BackendAngularJSFull Stack DevelopmentFront End Software DevelopmentRegion ManagementApi Design
Frontend Development
Angular and React expertise with 10+ years of architectural experience, specializing in frontend development and full-stack engineering

JavaScript Technologies
Advanced proficiency in Angular, React, TypeScript, and modern JavaScript frameworks for building scalable applications

Full-Stack Development
Experience with both frontend and backend technologies, including API development and database integration

Angular Framework
Extensive experience with Angular migrations, component architecture, and application optimization

React Development
Proficient in React ecosystem including hooks, state management, and component lifecycle

TypeScript
Strong typing skills for building maintainable and scalable applications

Testing & Automation
Experience with automated testing frameworks and continuous integration practices

UI/UX Implementation
Converting designs into responsive and interactive user interfaces

Experience

Professional experience10+ years
Freelancer since2020

Languages

GermanBasic knowledgeEnglishFluentHungarianNative speaker

Project history

Founder

Self-employed · Independent engineering R&D
Solo R&D at the intersection of AI tooling and game development. Built and operate an AI dev orchestrator that drives Claude Code agents through spec-decomposed tasks, shipping feature work on a Godot game from human-authored specs.

Frontend Engineer

Erste Bank
Owned frontend implementation on a 10-person full-stack team building a corporate-banking permission management module; shipped the module across Austria, Romania, and Czechia on a country-per-year cadence with maintenance for prior markets.

Implemented features and authored their step definitions in the team’s Cypress/Cucumber end-to-mock suite; supported the QA function on test design. The team’s coverage discipline kept production incidents at ~1/4 the bank’s cross-team average.

Frontend Engineer

Diesdas Digital
Built a custom conversational UI for a chatbot product, partnering with their lead engineer and UI/UX designer.

Lead Frontend Engineer

Charly Education
Stepped in after the FE tech lead’s departure with a two-part mandate: ship the new e-learning platform before the next university exam window (only two such windows per year, so missing it meant a 6-month slip) and prepare the in-house mid-level engineer to take over the Lead role.

Shipped on time; handed Lead off cleanly to the mid-level engineer on rollout.

Lead Frontend Developer

SimpledCard
Led the AngularJS → Angular migration of the main application; mentored the mobile team through their NativeScript rewrite.

Note: Transitioned to Freelancing during this project, spent about half of it as outside support/handover to the new Lead Dev

Software Engineer

Cloudera
Working on Cloudera ML platform, contributing to valuable learning experience and team management practices

Senior Frontend Developer

IT Wave
Developed user interface for new machine learning product using Angular stack and standard technology

Senior Frontend Developer

Hearsay Systems
Created custom UI solutions for company clients, handling challenging CMS requirements and monolithic architecture

Software Developer

T.E.L.L Software
Transitioned from being full stack to focusing on frontend, working on desktop and mobile applications

Web Developer

MadTatu
Beginning of developer career, progressed from junior to mid-level full-stack developer gaining experience with various technologies

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