Senior Backend Developer

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🕒 September 17, 2025

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Aliancers

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11 - 50 employees

Somos una consultora de Selección de Talento en Mandos Medios y posiciones operativas en todas las áreas de negocios de todas las industrias.

📋 Description

• Architect and develop high-performance backend services using NestJS, ensuring scalability and maintainability • Design and optimize PostgreSQL database schemas and query performance • Implement complex business logic and integration patterns for financial service workflows • Create and maintain RESTful APIs with exceptional performance characteristics • Develop robust data modeling strategies that support complex financial service configurations • Lead backend system design and technical decision-making • Leverage AWS cloud services to build scalable and reliable infrastructure • Mentor junior engineers and contribute to the overall engineering team culture • Implement comprehensive testing strategies, including unit and integration testing • Establish and maintain backend observability and monitoring infrastructure • Collaborate closely with frontend, product, and design teams to ensure seamless system integration

🎯 Requirements

• 7+ years of professional JavaScript development experience • 7+ years of professional Node.js development experience • Extensive experience with NestJS framework • 6+ years of professional experience with PostgreSQL and relational database design • Fluency in English & Spanish (Must) • Proven track record of designing scalable, high-performance backend systems • Deep understanding of TypeScript and advanced JavaScript patterns • Strong experience with RESTful API design and implementation • Expertise in database optimization and performance tuning • Comprehensive knowledge of backend testing methodologies • Substantial AWS cloud services experience: Amazon EC2, Amazon RDS, AWS Lambda, Amazon S3, AWS CloudWatch • Infrastructure as Code experience (CloudFormation or Terraform) • Experience with microservices architecture • Strong debugging and systems troubleshooting skills • Candidate must be located in Argentina (Need only Argentina candidates who speak both fluent English and Spanish) • Bonus: Knowledge of financial services domain; CI/CD pipeline configuration; Docker; Message queue systems (RabbitMQ, Kafka); Backend observability tools

🏖️ Benefits

• Completamente remoto • Organización dinámica y flexible que valora competencias, habilidades y potencial de las personas