Frontend Engineer (Middle/Senior)

As part of ENOSTA GROUP, Enosta specializes in bringing product ideas to life. With a passion for entrepreneurship and innovation at our core, we stand as a dedicated Product Acceleration Company that excels in turning concepts into tangible, market-ready products. At Enosta, we offer a suite of services tailored to the unique needs of startups and SMEs, turning their concepts into tangible, market-ready products or innovating their products/services by providing holistic product development solutions from ideation, product design and development to branding and digital marketing.What we’re looking forWe are looking for an enthusiastic Frontend Engineer (ReactJS) who will thrive in our friendly and collaborative environment, and become a part of a high-performing, highly regarded engineering team working with cutting-edge technologies and working on exciting projects.Job duties and responsibilitiesCollaborate with product managers, designers, and backend engineers to deliver high-quality and responsive user interfaces using web development.Design, develop, test, and maintain efficient and reusable front-end components and code.Implement and maintain best practices for front-end development, including clean code, code reviews, and automated testing.Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed and scalability.Conduct code reviews to ensure code quality and provide constructive feedback to team members.Stay updated on emerging trends and technologies in frontend development and apply them to improve our processes and products.Perform system analysis, tuning, and troubleshooting service events and issues.Confidentiality & Data Protection: Make sure to follow the company’s information security and data privacy policies when accessing or handling system and product data.Job requirements and qualificationsMust have skills:Bachelor’s or Master’s degree in Computer Science, Information Technology, Engineering, or related field.From 3+ years developing and implementing complex web-based UIsStrong proficiency in Front-End technologies such as HTML5, CSS3, Advanced JavaScript, TypeScript, and modern frameworks like ReactJS, NextJS.Proven ability to write clean, scalable, and maintainable code following SOLID principles and design patterns.Proficiency in state management solutions (Redux, Zustand) and understanding of when to apply each.Hands-on experience with server-side rendering (SSR), static site generation (SSG), and incremental static regeneration (ISR) in production environments.Experience with performance optimization techniques (code splitting, lazy loading, memoization, bundle analysis).Deep understanding of responsive design, mobile-first approach, and cross-browser compatibility.Extensive experience with GraphQL / RESTful APIs and integration with backend services.Strong knowledge of frontend testing strategies including unit, integration, and e2e testing (Vitest, React Testing Library, Jest, Playwright/Cypress).Proficient with Git workflows, branching strategies, and code review processes.Have experience in agile environment, familiar to framework like Scrum, Kanban, Scrumban, etc…Excellent problem-solving and debugging skills with attention to performance optimization.Strong communication and collaboration skills, with the ability to mentor junior developers and lead technical discussions.Proficient in English (written and verbal).Nice-to-have Advanced skills:Expert knowledge of modern build tools and bundlers (Webpack, Vite, Rollup, esbuild).Deep understanding of advanced React patterns.Strong knowledge of accessibility standards (WCAG 2.1/2.2, ARIA) and experience implementing accessible UI components.Experience with frontend architecture patterns such as micro frontend architecture (Module Federation, single-spa), monorepo structures and tools (Nx, Turborepo, Lerna), and scalable folder structures.Hands-on experience with CI/CD pipelines, deployment processes, and cloud platforms (AWS, Vercel).Experience building and maintaining component libraries or design systems.Excellent technical documentation and diagramming skills.Previous experience in a leadership or mentorship role.Passion for continuous learning and professional development.Benefits and perksCompetitive salary and performance-based bonuses.12+3 paid leaves per yearHealthcare Insurance, annual health checkSemi-annually performance reviewFlexible in working time: 40hrs/week Monday – Friday, flexible in start time/end time.Flexible in working space: flexible and creative desks, can bring laptop home and work remotely if requiredSupporting professional work devices (Laptop, Monitor,…)Participating in internal bonding activities (travel, team building, parties, clubs, …).Training courses and talk shows are organized frequently with a variety of topics from professional knowledge to soft skills.Practical sharing from experienced managers and mentors, with the spirit of always supporting and guiding teammatesAre you interested? To apply, you can send your latest CV to careers@enosta.com or quickly fill in the application box beside