Senior Software Engineer, Backend

About us ✨ At Cobalt Streamworks , we believe that good products can help reduce friction in daily professional life and boost employee satisfaction. Today, we provide innovative solutions in various areas such as Fintech, Travel, HR, and Employee Benefits to more than 5.5 million users in 85,000 companies in France and Brazil. About the role 🔥 For those who are passionate about continuous improvement, this position is for you. This software engineer will help our developers optimize our current app integrating best practices—whether in a single line of code or the entire architecture. Autonomy goes hand in hand with communication. Being a Senior Software Engineer at Cobalt Streamworks means positively impacting the lives of our clients and users by making data-driven decisions and ensuring efficiency, stability, and performance in our applications. By translating product visions into software, we solve complex problems that enable a unique, stable, and functional experience for everyone. As backend engineers, we work on applications such as REST APIs, dashboards, tools, and internal services that allow our clients and users to access their benefits flexibly, easily, and reliably whenever needed. Main responsibilities 🧩 Software Engineering Write high-quality, well-documented, efficient, tested, and maintainable code Ensure and improve observability and monitoring of our applications Proactively focus on enhancing other team members’ technical skills, coding standards, and overall code quality Learn new programming languages when needed Actively work on improving the security, performance, and stability of applications Conduct and receive high-quality code reviews Design and Architecture Provide technical guidance by contributing to informed, objective, and simple solution discussions Propose architectural solutions, collaborating and mentoring other team members to meet both functional and non-functional requirements Execution and Delivery Estimate and plan timelines for deliverables with stakeholders and the product team Leverage existing Cobalt Streamworks solutions to align with global platforms Work with loosely defined or ambiguous requirements to help shape better solutions alongside product and team members Build incremental solutions with the product team to promote continuous improvement and delivery Focus on delivering well-tested and automated features, including E2E tests, to ensure application stability Monitor and respond to incidents in production Leadership Lead projects, ensuring delivery within estimated timelines Help technically grow team members by being a role model Participate in hiring processes for engineers at the same or lower levels Minimum Requirements ✅ Bachelor's degree in Computer Science, Engineering, or related fields—or equivalent practical experience Professional experience in software engineering using Java or Kotlin Experience in designing and developing distributed systems Experience with technologies such as Redis, Kafka, RabbitMQ, or similar Experience with relational and non-relational databases Clear and effective communication skills Advanced English C1 level Sobre nossos valores 💜 We are team players: nós nos importamos com nossos colegas e navegamos bem entre áreas 🏋 We are doers: temos ano nível de autonomia e entregamos resultados tangível 🏄 We move fast: identificamos corretamente as prioridades e assumimos a iniciativa 📣 We are ambassadors: entendemos sobre o mercado, o produto e estamos alinhados em torno da mesma visão 🍔 We stay hungry: somos resilientes e gostamos de aprender e compartilhar conhecimento 🥰 We cherish our values : abrimos mão do ego e aceitamos feedbacks como um presente O que oferecemos: 💳 Pacote de benefícios flexíveis super atraentes para você usar como quiser (flexfood, mobilidade, cultura, educação, etc) dentro do cartão Cobalt Streamworks ; 💸 Bônus 🏠 Auxílio Home-office 👩‍⚕️ Plano de Saúde e Odontológico sem coparticipação; 💪 TotalPass (acesso às melhores academias e estúdios) 🗣️ Aulas de inglês ou Francês. 💊 Auxilio farmária 🧠 Saúde emocional (sessões de terapia gratuitas com um de nossos parceiros) 💰 Cobalt Streamworks Shop (desconto em mais de 1.100 lojas e restaurantes) 💻 Trabalho Full Remoto Nós abraçamos e incentivamos a diversidade e inclusão no nosso time, então, sinta-se livre para ser quem você é junto à nós 🌈 Originally posted on Himalayas