About WinSPin: WinSPin is an exciting new mobile/web application designed for students and young adults to win free prizes (like food, coffee, and ice cream) by spinning a wheel. Users can exchange points earned for delicious rewards at partnered retail locations while helping promote these businesses through reviews. Retailers benefit from increased visibility, reviews, and customer engagement, while users enjoy free goodies! We're building an app that's fun, rewarding, and useful—not a game, but a great way for young people to score free treats and discover new spots. WinSPin will be free for customers, with retailers subscribing for the exposure and engagement. Tech Stack: Backend: Go Frontend: React (Web), React Native (Android), Swift (iOS) Infrastructure: Google Cloud Platform (GCP) Databases: Relational and NoSQL Who We're Looking For: We are on the hunt for a Senior Backend Developer with 5+ years of experience in Go . If you're passionate about creating reliable, high-performance systems and love solving complex problems, we'd love to hear from you! Responsibilities: Design, develop, and maintain our backend services using Go Collaborate with frontend and mobile teams (React, React Native, Swift) to integrate APIs and deliver seamless user experiences Manage and optimize database performance (both relational and NoSQL) Deploy and maintain infrastructure on Google Cloud Platform (GCP) Work closely with product teams to ensure our app is efficient, scalable, and secure Ensure code quality and best practices are followed What You Bring: 5+ years of hands-on experience with Go Familiarity with cloud platforms (GCP preferred) Experience working with RESTful APIs Knowledge of React and/or React Native is a plus Strong problem-solving skills and the ability to work in a fast-paced startup environment A passion for building user-focused, scalable products Why join us: Ability to work remotely from anywhere in the world Close cooperation with the development team and client Opportunity to influence product development Professional growth: the certification preparation course is free for our specialists. The company pays for two attempts to pass the exam, regardless of the exam result We cover English classes (with a native speaker) Boost professional brand: you can participate in local conferences as a listener or as a speaker Regular team buildings: have fun with teammates Gifts for significant life events (marriage, childbirth) Tech and non-tech Zazmic Communities: support and share experience with each other