Frontend Developer (React) - Mid/Senior

Description

Job Summary: We are looking for a Mid-level Frontend Developer with solid React experience to build and evolve modern, high-performance web interfaces while collaborating with multidisciplinary teams. Key Highlights: 1. Building modern and high-performance web interfaces with React. 2. Collaborating with multidisciplinary squads and participating in technical decisions. 3. Working in an agile environment focused on autonomy and efficiency. **Welcome to OpenCircle!** At OpenCircle, we believe in the power of collaboration, innovation, and continuous growth. We are on an exciting journey to transform the world through software—and you can be a key part of this mission. **Who We Are** We are a technology company specializing in Systems Development, offering a complete portfolio for digital transformation—with a focus on innovation and tangible results. Our purpose is to become the world’s best Technology Consulting firm, delivering an extraordinary journey for our clients. **Our Values** Deadlines Are Sacred: We deliver on time with excellence, fully understanding their importance to our clients’ success. We Are Accountable for Our Actions: We take full responsibility for our decisions and outcomes. We Act with Transparency: Open and honest communication to ensure clarity and trust. We Focus on Results: We deliver impact and quality, exceeding expectations. We Put Ourselves in Others’ Shoes: We practice empathy, considering others’ needs. We Pursue Excellence: We constantly surpass our own standards. We Are Fully Committed: We demonstrate unwavering dedication to our goals and clients. We Are Ambitious and Passionate About the Journey: Our motivation stems from passion for what we do. * **️ What We Do** We were founded to bring innovation and top-tier technology into enterprises—simplifying people’s daily lives.**Our Services** Managed Squads: Dedicated teams for complex projects. Talent Allocation: Experts to strengthen our clients’ teams. Project Studios: End-to-end solutions—from planning to execution. Managed Services (AMS): Ongoing IT operations support. Open as a Service (OaaS): Access to OpenCircle’s full technology ecosystem. **Our Studios** Digital Studio Mobile, Web, and Modern App development. Cloud & DevOps for scalability. Solution Architecture, Quality Assurance, and Low-Code Apps. Innovation Studio Product Management. Agile Methodologies. User-Centered Design. Data AI & Automation StudioData & Analytics. Artificial Intelligence (AI). Robotic Process Automation (RPA). **What We’re Looking For?** We seek a Mid-level Frontend Developer with solid web development experience and strong React expertise to build and evolve modern, high-performance, and well-structured interfaces. We want someone with mature technical skills—capable of proposing solutions, collaborating effectively with the team, and delivering consistent results. We look for a hands-on professional with strong communication, product mindset, and ability to thrive in an agile environment—without rigid methodological constraints. We value adaptability, autonomy, and a focus on efficiency. **Responsibilities:** Develop and evolve web interfaces using React with high technical quality; Implement reusable components following UI/UX best practices and design standards; Transform business and product requirements into functional, scalable solutions; Optimize performance, accessibility, and user experience; Participate in technical discussions, architectural decisions, and continuous improvements; Collaborate with multidisciplinary squads (product, backend, QA, design); Conduct code reviews, suggest improvements, and maintain consistent coding standards; Work with agile methodologies (Scrum/Kanban), flexibly and delivery-oriented. **✨ Nice-to-Haves:** Knowledge of design system tools (Storybook, Figma, etc.); Experience with SSR/SSG (Next.js); Understanding of UX and accessibility best practices (WCAG); Experience with complex integrations and large-scale products; Experience with CI/CD and cloud environments. **Behavioral Profile** Clear communication and collaborative attitude; Proactivity and technical autonomy; Consistency in deliveries and sense of accountability; Ability to prioritize tasks and solve problems efficiently; Flexible, adaptable, and continuously improvement-oriented. Requirements: **Technical Requirements:** Solid experience as a Mid-level Frontend Developer; Proficiency in React—including hooks, lifecycle, state management, and global state (Redux, Zustand, Recoil, etc.); Strong knowledge of JavaScript/TypeScript; In-depth knowledge of HTML5, CSS3, Styled Components, Sass or similar frameworks; Experience consuming REST and/or GraphQL APIs; Solid understanding of frontend architecture and componentization; Experience with Git and development pipelines; Familiarity with unit testing and frameworks (Jest, React Testing Library, Cypress, etc.); Experience with agile methodologies—but without rigid implementation.