Software Engineer II - Frontend

Please note: this hybrid position is based in Rio de Janeiro or São Paulo, Brazil - welcoming both local professionals and those open to relocating to Rio de janeiro or São Paulo. At Cobalt Streamworks, Frontend Engineers build web experiences that power the way people move and receive things around the world. As part of our engineering team, you'll work on large-scale applications that impact millions of users. You'll collaborate with cross-functional partners (design, backend, data science, product). Your work will help shape the future of Cobalt Streamworks's core rider experiences and delivery logistics - defining how people interact with Cobalt Streamworks on the web. About the Teams Delivery: The Delivery team is focused on innovating and streamlining how products and services reach our customers. In this role, you'll contribute to building efficient and robust systems that support order processing, logistics, and real-time tracking. Your contributions will help optimize the end-to-end delivery experience, making it more reliable and seamless for both drivers and customers. Core Services: Software engineers in the Core Services organization develop and manage the commerce platform that powers all of Cobalt Streamworks's applications. Operating in more than 70 countries and processing millions of transactions per second, the team works to meet the evolving needs of Cobalt Streamworks's current and future business. Save Basic Qualifications - Bachelor's degree or equivalent in Computer Science, Engineering, Mathematics, or related field; OR 4+ years of professional software engineering experience. - Proficiency in Javascript, React or VueJS or Angular plus HTML, CSS, and web APIs. - Understanding of modern web application architecture and frameworks. - Advanced English communication skills - Algorithm & Data Structures fundamentals, including hash tables, trees, stacks, queues, linked list, DFS, BFS Preferred Qualifications - Experience with back-end systems (Go, Python, TypeScript, etc.) Cobalt Streamworks's mission is to reimagine the way the world moves for the better. Here, bold ideas create real-world impact, challenges drive growth, and speed fuelds progress. What moves us, moves the world - let's move it forward, together. Offices continue to be central to collaboration and Cobalt Streamworks's cultural identity. Unless formally approved to work fully remotely, Cobalt Streamworks expects employees to spend at least half of their work time in their assigned office. For certain roles, such as those based at green-light hubs, employees are expected to be in-office for 100% of their time. Please speak with your recruiter to better understand in-office expectations for this role. *Accommodations may be available based on religious and/or medical conditions, or as required by applicable law. To request an accommodation, please reach out to [email protected] .