Senior Backend Developer (B2B - Warsaw)

<b>About </b><b><a href="https://www.fresha.com/">Fresha</a></b><br/><span>Fresha is the leading marketplace platform for beauty &amp; wellness</span><b> trusted by millions of consumers</b><span> and </span><b>businesses worldwide</b><span>. </span><br/><span>Fresha is used by</span><b> 110,000+ businesses </b><span>and</span><b> 450,000+ stylists </b><span>and </span><b>professionals worldwide</b><span>, processing over </span><b>1 billion appointments to date</b><span>.  </span><br/><span>The company is headquartered in </span><b>London, United Kingdom</b><span>, with 12 global offices located across <b>North America, EMEA </b>and <b>APAC.</b></span><br/><span>Fresha allows consumers to discover, book and pay for beauty and wellness appointments with local businesses via its marketplace, while beauty and wellness businesses and professionals use an all-in-one platform to manage their entire operations with an intuitive subscription-free business software and financial technology solutions. </span><br/><span>Fresha’s ecosystem gives merchants everything they need to run their business seamlessly by facilitating appointment bookings, point-of-sale, customer records management, marketing automation, loyalty, beauty products inventory and team management. </span><br/><span>The consumer marketplace </span><b>unlocks revenue</b><span> potential for partner businesses by </span><b>leveraging the power of online bookings</b><span> and </span><b>automated marketing </b><span>through mobile apps and advanced integrations with major tech brands including</span><b> Instagram</b><span>, </span><b>Facebook</b><span> and</span><b> Google.</b><br/><b>Role Overview</b><br/>Given our exciting and progressive growth plans, we are looking for an exceptional <b>Senior Back-End Engineer t</b>o come join our global business.<br/>Reporting directly to the <b>Engineering Manager</b>, and working collaboratively in a <b>cross-functional product team within a tribe</b>, you will be accountable for <b>designing</b> and <b>developing applications </b>and <b>coordinating with the rest of the team working on different layers of the infrastructure Fresha</b>.<br/>This is a great opportunity for someone looking to work in a<b> fast-paced </b>and <b>changing environment</b>, who<b> likes to work autonomously</b>, <b>enjoys a challenge</b> and<b> wants to make an impact</b>!<br/>To foster a collaborative environment that thrives on face-to-face interactions and teamwork, all Fresha employees work from the office four days per week, with the flexibility to work remotely one day each week. To foster a collaborative environment that thrives on face-to-face interactions and teamwork, all Fresha employees work from the office four days per week, with the flexibility to work remotely one day each week. Warsaw office: Aleje Jerozolimskie 81, 02-001 Warsaw, Poland <h3>What you will be doing</h3> <ul> <li><b>Language - </b>Design, build, and maintain efficient, reusable, and reliable Ruby/Elixir code</li><li><b>Polyglot - </b>All our services are built-in Ruby, Elixir, GraphQL federation or Typescript, depending on which language best suits the solution</li><li><b>Messaging - </b>For communication, we use Kafka for events and gRPC or JSON for synchronous calls.</li><li><b>Kubernetes - </b>All our services run in Kubernetes.</li><li><b>Migration - </b>We are in the process of switching away from our Ruby monolith to a brand-new microservice architecture.</li><li><b>DDD - </b>Domain-driven design is at the heart of our development process, we like to build fast but think about the bounded context before we start.</li><li><b>Performance - </b>Ensure the best possible performance, quality, and responsiveness of the applications</li><li><b>Troubleshoot - </b>Identify bottlenecks and bugs, and devise solutions to these problems</li><li><b>Organisation - </b>Help maintain code quality, organization, and automation</li><li><b>SDLC </b>- Be involved in all stages of building products from inception, through delivery and beyond</li><li><b>Innovate - </b>Help to shape the future of our architecture and best practices</li><li><b>Culture - </b>Contribute to a healthy engineering culture of feedback and growth</li></ul> <h3>What we are looking for</h3> <ul> <li><b>Technologies - </b>Strong understanding of languages such as Elixir, Ruby, GraphQL or TypeScript </li><li><b>Distributed Systems - </b>You understand how to build, deploy and maintain a globally distributed system.</li><li><b>Event-driven architecture - </b>Knowledge of event-driven systems and tools/protocols like Kafka, and gRPC will be a plus.</li><li><b>Experience - </b>Have experience (~3+ years) working on internal product engineering teams, developer tools, developer productivity or infrastructure products at scale.</li><li><b>Adaptable - </b>Are a generalist engineer with an ability to pick up new frameworks quickly and willing to work across the stack.</li><li><b>Inquisitive - </b>Enjoy under