Team: Backend

Location: São José dos Campos, SP, 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:

As a Senior Backend Developer, you are a cornerstone of the team responsible for building the engine of our defence applications. You will:

• 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.