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Senior Frontend Engineer (React)

Senior Frontend Engineer (React)

Opinov8Sussex, Wisconsin, United States
Hace más de 30 días
Tipo de contrato
  • A tiempo completo
Descripción del trabajo

ROLE OVERVIEW

We are seeking a talented Frontend Engineer with deep expertise in React to join our Engineering team. You will be responsible for building and maintaining high-performance, data-centric web applications that integrate seamlessly with third-party services and in-house APIs.

Our Engineering team is responsible for delivering customer's core web products. You will collaborate with other developers and UX / UI designers to build and style professional, premium-looking web applications, while also working alongside their Data Analytics and Market Intelligence teams to define and implement functional requirements

The ideal candidate has a strong background in building scalable, efficient frontends, along with experience in state management, design systems, and close collaboration with backend teams.

IN THIS ROLE, YOU WILL

  • Work closely with the Web App Delivery team, including the Product Owner and Technical Architect, to support the development of multiple web applications.
  • Develop high-quality, performant web applications using React and associated libraries, with an emphasis on clean, maintainable code.
  • Build reusable components and front-end libraries, following modern best practices.
  • Implement responsive designs with cross-browser compatibility and accessibility in mind.
  • Contribute to quality assurance through unit and integration testing to ensure robust, bug-free functionality.

WE’RE LOOKING FOR SOMEONE WHO HAS

  • 4+ years of experience with React.js and related libraries.
  • Strong knowledge of modern JavaScript (ES6+), CSS, and HTML .
  • Proficiency in React core concepts, including hooks, context API, Redux (or other state management), routing, error handling, and debugging .
  • Experience working with TypeScript , including static typing, interfaces, and generics.
  • Experience with design systems and UI libraries, such as Material UI (MUI) .
  • Experience building data-heavy applications , including integration with REST APIs.
  • Familiarity with charting libraries like Highcharts or Plotly.js .
  • A passion for crafting user-friendly, high-performance applications , especially in data-intensive or visualization-rich environments.
  • Experience with mapping libraries (e.g. MapboxGL ).
  • Understanding of version control systems ( Git ) and dependency managers ( npm , yarn ).
  • Excellent communication skills and the ability to collaborate in a remote, distributed environment.

    • NICE TO HAVE

  • Experience with Python , particularly in collaboration with backend teams.
  • Familiarity with CI / CD pipelines and deployment platforms, such as GitHub Actions , CircleCI , Vercel , or serverless architectures .
  • Hands-on experience with modern build tools , such as Vite or similar.
  • Previous experience with automated testing frameworks , e.g. Playwright .
  • Experience working with GraphQL .
  • Interest or background in commodities, energy, or financial markets , ideally within a market intelligence environment.

    • AS AN OPINOV8R, YOU WILL HAVE

  • Hybrid Work Model :  Balance your professional and personal life with our flexible working conditions. We offer a hybrid setup that empowers you to be productive and deliver your best from anywhere. We’re planning to open a Lisbon office soon, but you’ll only be expected to come in approximately once per week..
  • Exciting Projects :   Dive into impactful projects across various industries that challenge and spark your creativity. Work on innovative solutions that push boundaries, giving you the chance to make a difference and drive change.
  • Boost Your Expertise :  Elevate your career with unmatched experiences that expand your knowledge and master skills. We foster continuous learning and development opportunities that allow you to grow and reach new heights.
  • Join the Best Team Ever :  Collaborate with our diverse and сross-cultural team of passionate technologists and creative thinkers who inspire and support. Together, we develop services that make a real impact on the world.

    • HOW’S THE HIRING PROCESS GOING

    We strive to make a smooth and transparent hiring process to find the perfect match for both sides. Steps may differ depending on the position — here's what to expect :

  • Initial Interview :  If your background fits the role's criteria, we'll invite you for an interview with a Talent Acquisition Specialist to get to know you better.
  • Client’s Interview :   Meet with client representatives to discuss the role specifics and gain insights into the project's scope and expectations.
  • Final Decision :  After completing all interviews and assessments, we'll reach a final decision and get back to you with the result.
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    Senior Frontend Engineer • Sussex, Wisconsin, United States

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