Frontend Software Engineer (Lovable + React) — miio

Frontend Software Engineer (Lovable + React) — miio
Aveiro
Aveiro, Aveiro District, Portugal

About miio

At miio, we’re building the next generation of sustainable mobility and energy experiences—helping people and businesses consume and manage energy smarter. In 2026, we’re scaling miio and launching major web experiences that support our next growth phase.

Job Description

We are looking for a skilled Frontend Software Engineer with strong React experience and practical fluency using Lovable to prototype, iterate, and ship polished web interfaces faster. You’ll help build and evolve dashboards and web products that power miio’s B2B and platform initiatives, with a focus on simplicity, onboarding conversion, and great UX .

Key Responsibilities

• Build and maintain modern, scalable web frontends using React (Type
  Script preferred).
• Use Lovable to rapidly prototype UI flows and accelerate delivery from concept →
  - ready implementation.
• Collaborate with Product, Design, and Backend to define, design, and ship features
  -
  - end.
• Create and maintain reusable UI components, design systems, and consistent interaction patterns.
• Integrate frontend experiences with backend APIs (REST/JSON), handling auth, errors, loading states, and edge cases cleanly.
• Optimize for performance , accessibility , and responsive behavior across devices.
• Write maintainable,
  - tested code; participate in code reviews and frontend best practices.
• Help improve CI/CD workflows and overall developer experience (tooling, linting, build reliability).
• Debug production issues and contribute to incident resolution when needed.
• Stay up to date with modern frontend trends—and apply them pragmatically.

Required Qualifications

• 3+ years of professional experience as a software engineer (frontend-focused).
• Strong experience with React and modern Java
  Script/Type
  Script.
• Experience building production web apps (routing, state management, component architecture).
• Comfortable working with REST APIs and collaborating closely with backend engineers.
• Practical experience with Lovable (or strong motivation + evidence you can ramp fast and use it effectively).
• Familiarity with Tailwind CSS.
• Experience translating Figma designs into UI components.
• Familiarity with Git, code review practices, and shipping in a team environment.
• Proficiency using AI tools like Chat
  GPT and Cursor to write, optimize, and debug code effectively.

Soft Skills

• Excellent
  - solving and analytical skills.
• Strong communication and collaboration abilities.
• Proactive mindset and ownership: you push work to completion.
• Passion for learning and improving product quality.
• Proficiency in English , written and verbal.

Nice to Have (Bonus)

• Next. js / SSR experience.
• UI testing (Playwright/Cypress), unit testing (Jest/Vitest), and component testing.
• Data visualization and dashboards (e. g. , Recharts/D3).
• Experience with design systems, accessibility standards (WCAG), and performance profiling.
• Familiarity with Docker and basic CI/CD concepts.
• Javascript, Typescript, React, HTML, Tailwind, Lovable, Aplicativos web, Git

What We Offer

• Competitive salary and benefits package.
• Opportunities for professional growth and development.
• Flexible working hours,
  - friendly options, and a supportive environment.
• A chance to work on impactful projects in sustainable mobility and energy.
• A collaborative team that values innovation, simplicity, and shipping.

Requirements added by the job poster (suggested)

• Comfortable working in a hybrid setting and commuting to Aveiro when needed.
• 3+ years of experience with React .
• Strong proficiency in Portuguese (preferred: native or bilingual).