Senior Ai-Driven Backend Engineer — Serverless Node.Js (Remote)

Aditi Consulting; Neuquén; Remote; ARS 2,800,000 - 3,600,000; Full time

Job summary

Aditi Consulting is seeking a Senior Backend Developer to architect and implement scalable backend services using Node.js and NestJS. You will optimize PostgreSQL schemas, design complex financial workflows, and build high-performance RESTful APIs.

The role requires guidance to junior engineers and close collaboration with frontend, product, and design teams. The position is remote for Argentina-based candidates, with a strong emphasis on English and Spanish fluency and experience with AWS

Qualifications

• 7+ years of Node.js development experience
• Extensive experience with NestJS framework
• 6+ years of PostgreSQL and relational DB design
• Fluency in English & Spanish (Must)
• Proven track record designing scalable backend systems
• Strong RESTful API design experience
• Experience with AWS services and IaC
• Experience with microservices architecture
• Strong debugging and troubleshooting skills

Responsibilities

• Architect and develop high-performance backend services using NestJS
• Design and optimize PostgreSQL schemas and queries
• Implement complex business logic for financial service workflows
• Create and maintain RESTful APIs with performance focus
• Develop data modeling strategies for complex configurations
• Lead backend system design and technical decisions
• Leverage AWS services to build scalable infrastructure
• Mentor junior engineers and contribute to team culture
• Establish backend observability and monitoring
• Collaborate with frontend, product, and design teams

Skills

Node.js

NestJS

REST APIs

Backend design

PostgreSQL

Tools

AWS

EC2

RDS

Lambda

S3

CloudFormation or Terraform

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