We are looking for a Senior Frontend Engineer to join our Data storage team in Helsinki HQ. You can also work remotely from Finland, Netherlands, Ireland, UK, Spain, Lithuania, Poland and Portugal. Here’s what you’ll help us deliver : <ul> <li>Our next generation data transfer system: We are currently redesigning our data transfer system to be more scalable, more resilient and handle larger volumes of data for our customers</li> <li>Supermetrics storage layer:  We are continuously improving our storage solution to help customers make their first steps with data warehousing. </li> <li>Agentic AI integration: With the technology progressing at rapid pace we are looking at how best we can integrate AI agents to our customers journeys to better analyze and activate their data.</li> </ul> Your day-to-day work and responsibilities include… <ul> <li>Participating in developing the user interfaces of our products, ensuring a seamless user experience.</li> <li>Participating in planning new initiatives and features.</li> <li>Work with product, design, and other development teams to deliver features and improvements</li> <li>Participating in code reviews to maintain code quality standards.</li> <li>Mentor and share knowledge with your colleagues.</li> <li>Optimize user experience by improving load times, and ensuring smooth interaction.</li> <li>Use and collaborate on improvements to our design system.</li> </ul> Technologies you’ll be using… <ul> <li>React</li> <li>TypeScript</li> <li>Next.js</li> <li>React Query</li> <li>Chakra UI</li> <li>Jest</li> <li>Playwright</li> <li>Datadog</li> <li>Git</li> <li>GitHub Actions</li> </ul>  This position is for you if you have… <ul> <li>5+ years of front-end development experience, with a strong focus on React and TypeScript.</li> <li>Proficient in creating complex UI patterns and advanced UI development, with a deep understanding of user experience.</li> <li>Strong experience with all parts of the testing pyramid, especially component testing.</li> <li>Knowledge of web security best practices, to ensure the safety of our customers data.</li> <li>Expertise in web performance best practices minimizing resource usage, and ensuring a smooth user experience.</li> <li>Knowledge of web accessibility guidelines like WCAG, to provide best-in-class support to all of our customers.</li> <li>Experience or interest in using visualization libraries such as D3.js, Chart.js, and Highcharts to create dynamic and interactive data visualizations.</li> <li>Expertise in Front-end toolings like package managers, linters, build tooling and testing libraries</li> <li>Fluent communication skills in English, with the ability to clearly convey technical concepts and collaborate effectively with team members.</li> </ul> Nice to have… <ul> <li>Familiarity with backend development (PHP or Python) to understand full-stack product needs.</li> <li>Understanding of monitoring tools and ability to interpret monitoring data. This includes tools such as Datadog, OpenSearch, Grafana, etc., which are used to track application performance and system metrics</li> <li>Knowledge of the advertising industry and experience with data connectors for advertising platforms.</li> <li>Proficient use of AI tools</li> </ul>   Benefits we offer… <ul> <li>Competitive compensation package, including equity</li> <li>Great work equipment, and home office allowance for those working in our fully remote locations</li> <li>Health care benefit and leisure time insurance</li> <li>Sports and wellbeing allowance </li> </ul> Benefits may vary depending on location.    Hear why our team likes it here at <a href="https://supermetrics.com/careers/life-at-supermetrics">supermetrics.com/careers/life-at-supermetrics</a>. Get to know our Engineering team at <a href="https://supermetrics.com/careers/engineering">supermetrics.com/careers/engineering</a>. #LI-Remote / #LI-Hybrid #LI-FullTime #LI-MiddleToSeniorLevel<div>  Join us on our mission to make data a marketing superpower   Supermetrics is a frontrunner in data integration technology, with 15% of global advertising spend reported through our products.    We help marketers turn their data into insights that improve business results and predict the best next step. Our technology streamlines marketing data for over 200,000 businesses through a network of agencies and customers like Shopify, HubSpot, and Nestlé.  Since our founding in 2013, weve grown profitably to reach 750K+ users and over 60M€ in annual recurring revenue.   Were a team of 360+ growth-minded people from diverse backgrounds. Together, we make a multicultural, resourceful, and collaborative team.   Supermetrics operates on trust, transparency, and a keen customer focus. Forward-looking and action-oriented, we work hard to raise the bar in our industry. As team players, we help each other and win together.   Were hiring for a diverse, skilled, and collaborative team and building an inclusive workplace where everyone is treated fairly and respectfully.   It all started with a Google t-shirt... Read the rest of our growth story at <a href="https://supermetrics.com/about" target="_blank">supermetrics.com/about</a>.</div>