Senior Backend Developer

Location: Sao Jose Dos Campos, Brazil **About the Opportunity:** Modirum \| Gespi is adapting its proven technologies for the dynamic UAV Defence sector through a dedicated new development team. We are seeking experienced Senior Backend Software Developers to design, build, and maintain the scalable, secure, and reliable server\-side systems that underpin our innovative defence solutions. You will tackle complex technical challenges and contribute significantly to the core functionality of our products. **Your Role in the Team:** As a Senior Backend Developer, you are a cornerstone of the team responsible for building the engine of our defence applications. You will: \* Design, develop, test, deploy, and maintain robust backend services, APIs, and data persistence layers. \* Write clean, efficient, well\-documented, and testable code in languages like Java, Kotlin, Python, or Node.js. \* Contribute to architectural decisions and the evolution of the backend systems. \* Collaborate with front\-end developers, AI specialists, hardware engineers, and the product team to deliver integrated solutions. \* Optimize applications for maximum speed, scalability, and reliability. \* Implement security and data protection best practices crucial for the defence sector. \* Mentor junior developers and participate actively in code reviews, promoting high standards. \* Troubleshoot and debug complex backend issues, ensuring system stability. \* Play a key role in the team's output by delivering high\-quality backend features and infrastructure components. **Qualifications:** \* Proven experience as a Senior Software Developer focused on backend systems. \* Strong proficiency in one or more backend programming languages (e.g., Java, Python, Node.js). \* Solid experience designing and building RESTful APIs or other service communication protocols (e.g., gRPC). \* Experience with relational databases (e.g., PostgreSQL, MySQL) and/or NoSQL databases (e.g., MongoDB, Cassandra). \* Understanding of software design patterns, microservices architecture, and distributed systems concepts. \* Experience with unit testing, integration testing, and CI/CD practices. \* Familiarity with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes). \* Strong analytical and problem\-solving abilities. \* Excellent communication and teamwork skills. **Bonus Points:** \* Experience building systems for Defence, Aerospace, or other high\-security/high\-reliability domains. \* Experience with message brokers (Kafka, RabbitMQ) or event\-driven architectures. \* Knowledge of performance tuning and optimization techniques. \* Experience with infrastructure automation tools. \* Contribution to open\-source projects. **What We Offer:** \* The opportunity to build critical backend systems for the high\-impact UAV Defence sector. \* A senior technical role within a new team adapting proven technology for a challenging market. \* Work on complex backend problems related to scale, security, and data processing. \* Collaboration with a multi\-disciplinary team of experts. \* Competitive salary and benefits package. \* A culture that values technical depth and collaboration.