Job Summary: We are looking for a Senior Backend Developer to lead architecture design, make strategic technical decisions, and optimize systems by implementing high-availability solutions. Key Highlights: 1. Leadership in architecture design for critical systems 2. Strategic technical decision-making 3. Performance optimization of transactional systems IDM Technology, IT solutions specialists, is seeking a Senior Backend Developer to join a major company in the region. **Responsibilities:** * Collaborate in leading architecture design for critical systems. * Make strategic technical decisions. * Optimize performance of transactional systems. * Implement high-availability solutions. * Collaborate with architects on standards. * Research and implement new technologies. * Manage technical debt. **Requirements:** * Bachelor’s degree or higher in Systems Engineering or related field. * Minimum 5 years of experience. * 3 years of experience in the banking sector. * Solid proficiency in at least one backend language (Java, Node.js, etc.). * Experience with corresponding frameworks (Spring, .NET, Express, Django/Flask). * Knowledge of relational databases and schema design. * Experience integrating external APIs. * Experience with authentication protocols (OAuth 2\.0, JWT). * Intermediate knowledge of cloud (AWS). * Implementation of well-structured RESTful APIs. * Experience with microservices. Benefits: * On-site work (Lima, Peru) * Innovative projects Employment Type: Full-time Application Question(s): * Do you authorize the use of your personal data in accordance with Law No. 29733 to include you in our database and consider you for future selection processes and employment opportunities? * What is your minimum salary expectation on payroll? * How many days would it take you to join the organization? * Which programming languages do you use? (Java, Node.js, Git.NET Core, PHP, Python) * Are you proficient in frameworks such as Spring Boot, .NET, or Express, Django/Flask? * Do you have experience in microservice design, API Gateway, and message queue management? (Kafka, RabbitMQ) * Have you implemented robust RESTful APIs and integrated with external systems? * Do you have experience with OWASP Top 10 and authentication protocols? * Do you work with cloud services (AWS/Azure/GCP)? * Do you have experience with relational databases and SQL queries? * Do you have experience in the banking sector? Work Location: Hybrid in Miraflores, Lima