Application Development & Maintenance (60%)

- Develop, maintain, and enhance features for web applications using React.js, Node.js, and Java Script.
- Design and implement RESTful APIs and microservices following best practices and security standards
- Optimize application performance, including database queries, caching strategies, and frontend rendering
- Implement responsive, accessible user interfaces supporting multiple languages (Spanish, Portuguese, English)
- Integrate applications with enterprise systems and third-party services

Production Support & Incident Management (25%)
- Provide Level 2/3 support for production applications
- Troubleshoot and resolve complex technical issues across the full application stack
- Perform root cause analysis and implement permanent fixes to prevent recurring incidents
- Monitor application health using APM tools and proactively address performance degradation
- Collaborate with business users to understand and resolve functional issues

Technical Modernization & Innovation (15%)
- Implement security best practices including OWASP standards, secure coding, and vulnerability remediation
- Modernize batch processing workflows to event-driven architectures
- Contribute to technical debt reduction and architectural improvements
- Document technical designs, APIs, and operational procedures

Required Qualifications

Technical Skills

- 4+ years of full-stack development experience with production applications
- Strong proficiency in JavaScript/TypeScript,



React.js, and Node.js
- Experience with Java and Spring for backend development
- Solid understanding of SQL and experience with relational databases (SQL Server, PostgreSQL)
- Experience with RESTful API design and microservices architecture
- Familiarity with cloud platforms, preferably Microsoft Azure
- Knowledge of containerization technologies (Docker, Kubernetes basics)
- Experience with Git version control and CI/CD practices

Soft Skills

- Fluent Spanish and professional English (written and verbal)
- Strong problem-solving abilities with attention to detail
- Excellent communication skills for interacting with business stakeholders
- Ability to work independently and manage multiple priorities
- Collaborative mindset with experience in Agile methodologies

Preferred Qualifications

- Experience with Azure services (App Service, SQL Database, Key Vault, Blob Storage, Azure Kubernetes Service)
- Knowledge of Redis or similar caching solutions
- Familiarity with authentication protocols (OAuth 2.0, SAML, OpenID Connect)
- Experience with monitoring tools (Application Insights, Splunk, AppDynamics)
- Understanding of financial/procurement processes in enterprise environments
- Experience with Angular or Vue.js frameworks
- Knowledge of message queuing systems (Service Bus, RabbitMQ)
- Exposure to Infrastructure as Code (Terraform, ARM templates)
- Professional Portuguese (written and verbal)

Hibrid 3x2

📌 Fullstack SR - ID (Buenos Aires)
🏢 Werben Hr
📍 Buenos Aires