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Technologies-expected : Type Script SCSS React Jest Cypress Graph QL technologies-optional : Java Spring Angular Vue Figma Jira about-project : We seek a highly skilled and motivated Front-End Lead Engineer to join our growing Samsung Ads team. As Front-End Lead Engineer, you will contribute to development and buildout of components of Samsung’s DSP platform. You will be closely working with local team in Warsaw, having also many opportunities of collaboration with Samsung’s remote teams across the globe (US, Korea, India, UK) to help implement and deploy services. Expertise you bring to the team, will play a crucial role in building modern, well performing, services which we will use to deliver targeted ads to our users. On daily basis, you will be collaborating with other professionals around design, implementation, and review of the source code, followed by delivery of proper documentation and quality. Samsung Ads is a highly successful and fast-growing business for over last six years. This business and its continued future success depend on the products, technologies, and tools owned by Samsung. Hundreds of people strong, with a substantial presence in five countries, Samsung Ads team is a dynamic and complex organization operating across a broad spectrum of product and strategic domains. Join our team and play a key role in shaping the future of our ad tech platform. Technologies in use FE Type Script SCSS React Jest Cypress Graph QL BE Ruby on Rails AWS responsibilities : Design and implement scalable and maintainable front-end architectures, ensuring high performance and reliability. Lead the development of responsive, user-friendly, and visually appealing complex front-end applications and components. Establish and follow best coding practices. Set and maintain high standards for code quality, code reviews, and best practices within the front-end team. Identify and resolve performance bottlenecks, improve loading times, and optimize user experiences. Collaborate with product managers, UX/UI designers, back-end engineers, and data scientists to define requirements and implement effective solutions. Collaborate with peers and leaders across the various sites of Samsung Ads, driving cross-site efforts to improve Samsung Ads capabilities. Maintain comprehensive documentation for front-end systems and processes. Ensure robust testing procedures and continuous integration to guarantee the reliability of our front-end applications. Plan and oversee development of new features. Prepare technical requirements. Being a mentor for younger developers. Prepare solutions, initiatives to improve quality and improve team performance. requirements-expected : At least 8 years of experience in creating web applications (Front-End or Full-Stack) At least 5 years of experience with React and Typescript Good practical knowledge of CSS, SCSS Good practical knowledge of performing meaningful code reviews Experience with leading team of engineers Experience with writing and maintaining documentation Experience in test-driven development and ability to write automated tests (Jest) Experience with performance optimization, responsive design, and cross-browser compatibility Fluency in English University degree in Computer Sciences, Telecommunication and/ or similar offered : Friendly working atmosphere Wide range of trainings and a huge support in developing algorithmic skills Opportunity to work in multiple projects Working with the latest technologies on the market Monthly integration budget Possibility to attend local and foreign conferences Start of work between 7 a.m. and 10 a.m. PC workstation/Laptop + 2 external monitors Office in Warsaw Spire near metro station Attractive relocation package Hybrid model of work – 3 days from the office per week benefits : sharing the costs of sports activities private medical care sharing the costs of foreign language classes life insurance corporate products and services at discounted prices integration events dental care no dress code leisure zone pre-paid cards baby layette charity initiatives unlimited free access to Copernicus Science Center mentoring program psychological support possibility to test new Samsung products