We are seeking a dynamic, proactive Senior React Engineer to join our collaborative development team. Our client specializes in providing cutting\-edge simulator technology for the energy industry. Our advanced simulation software empowers organizations to optimize subsurface modeling, improve recovery, and enhance operational efficiency. The front\-end project leverages React, TypeScript, and modern UI/UX patterns to provide real\-time results, intuitive workflows, and collaboration features that empower engineers worldwide. **Key Responsibilities:** * Develop and implement scalable React applications and components. * Collaborate closely with UI/UX designers, backend engineers, QA, and product managers to deliver intuitive user experiences. * Lead technical discussions, review code, and mentor team members. * Communicate effectively to capture requirements, provide feedback, and support other stakeholders. * Demonstrate proactivity by identifying areas for improvement, suggesting new solutions, and leading the adoption of best development practices. * Foster a dynamic and engaging culture—energizing the team for creative breakthroughs and supporting peers. * Ensure maintainability, performance, and reliability of front\-end code. **Qualifications:** * 5\+ years of experience building production React applications. * Strong proficiency in JavaScript/TypeScript, HTML, and CSS. * Proven ability to communicate across multidisciplinary teams. * Experience integrating RESTful APIs and working on complex state management (e.g., Redux, Context API). * Strong desire to work in a collaborative and diverse environment. * Proactive mindset with a passion for continuous learning and innovation in engineering practices. * Experience with unit/integration testing frameworks (e.g., Jest, React Testing Library). * Understanding of accessibility, responsive design, and performance optimization. * Previous experience in technical domains (energy, simulation, scientific modeling) is an asset but not required. * Upper\-intermediate or Advanced English level is mandatory **We offer\*:** * Flexible working format \- remote, office\-based or flexible * A competitive salary and good compensation package * Personalized career growth * Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) * Active tech communities with regular knowledge sharing * Education reimbursement * Memorable anniversary presents * Corporate events and team buildings * Other location\-specific benefits * not applicable for freelancers