Senior Backend Developer (C#/.Net + Node.Js)

Encora; Municipio de Rincón de los Sauces; Remote; ARS 1,800,000 - 3,400,000; Full time

Job summary

Encora is seeking a Senior Backend Developer to architect and build high-performance services using NestJS. You will optimize PostgreSQL schemas, implement complex financial workflows, and lead system design while mentoring juniors.

The role requires English and Spanish fluency and offers a full-time remote position across Argentina. Responsibilities include building scalable RESTful APIs, shaping data models for financial configurations, and ensuring observability with AWS services, testing,

Qualifications

• 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). The team primarily communicates in Spanish, so strong written and verbal Spanish skills are essential.
• Proven track record of designing scalable, high-performance backend systems.
• Strong experience with RESTful API design and implementation.
• Expertise in database optimization and performance tuning.
• Comprehensive knowledge of backend testing methodologies.
• Experience with microservices architecture.
• Knowledge of the financial services domain
• Backend observability tools experience.

Responsibilities

• 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.

Skills

Node.js

NestJS

PostgreSQL

RESTful APIs

AWS

Backend design

Mentoring

Testing

English

Spanish

Tools

Amazon EC2

Amazon RDS

AWS Lambda

Amazon S3

CloudWatch

Terraform

CloudFormation

Microservices

Job 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

You'll be a great fit if you have:

• 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). The team primarily communicates in Spanish, so strong written and verbal Spanish skills are essential.
• Proven track record of designing scalable, high-performance backend systems
• Strong experience with RESTful API design and implementation
• Expertise in database optimization and performance tuning
• Comprehensive knowledge of backend testing methodologies
• Amazon EC2
• Amazon RDS
• AWS Lambda
• Amazon S3
• AWS CloudWatch
• Infrastructure as Code (CloudFormation or Terraform)
• Experience with microservices architecture
• Strong debugging and systems troubleshooting skills

Bonus points if you have:

• Knowledge of the financial services domain
• Backend observability tools experience

Need only Argentina candidates who speak both fluent English and Spanish

995 - Backend Developer (Java) · Senior · Remoto · ARG

Disclaimer – Lectura obligatoria: Compromiso y dedicación Este rol requiere dedicación full-time, con prioridad clara sobre los proyectos de Darwoft durante el horario laboral establecido. No es compatible con otros compromisos profesionales full-time. Cualquier actividad profesional adicional deberá ser informada previamente y no deberá interferir con las responsabilidades del rol.

Sobre Darwoft

Darwoft es una software factory dedicada al desarrollo de soluciones de software a medida y a la provisión de servicios de staff augmentation IT para clientes internacionales, con foco principal en Estados Unidos y Latinoamérica. Colaboramos estrechamente con startups y compañías en crecimiento para impulsar productos digitales de alto impacto.

Nuestra cultura se define como people-first: priorizamos la cercanía humana, la calidad técnica, el trabajo colaborativo y la construcción de relaciones de largo plazo. Buscamos profesionales que compartan esta visión y deseen generar un impacto real en el negocio de nuestros clientes.

Software Engineer Java SR (Relación de Dependencia - Argentina)

Información general

• Ubicación: Argentina
• Tipo de contrato: Relación de Dependencia.
• Industria / Proyecto: Desarrollo de productos digitales de alto impacto y escala internacional.
• Zona Horaria: Horario laboral de Argentina

Sobre el Rol / About the Role

Buscamos un Software Engineer Java Senior con mentalidad de owner y una sólida trayectoria técnica para sumarse a nuestro equipo de