Senior Python Backend Developer | Ai Tools & Aws

Southbay; Rosario; On-site; ARS 1,100,000 - 2,000,000; Full time

Job summary

Southbay is seeking a Backend Developer to design, build, and maintain scalable systems for a Product-led engineering team. The role involves Java and/or Kotlin with Spring Boot, GraphQL, MongoDB, and Aurora MySQL on AWS, covering operational tooling and system architecture.

Responsibilities include taking on lower-priority engineering work—compliance, cost-savings, observability, and tooling—and designing robust, scalable software systems.

Qualifications

• 3+ years of backend-focused software development experience.
• Proficiency in Java and/or Kotlin.
• Proficiency with MongoDB (Atlas).
• Proficiency with Aurora MySQL on AWS.
• Experience building cloud-native distributed systems on AWS.
• Experience with Spring Boot.
• API development with GraphQL (Netflix DGS).
• Experience building and operating large-scale, high-performance systems on a major cloud platform.

Responsibilities

• Take on lower-priority engineering work the team lacks bandwidth for, including compliance and engineering maintenance, cost-savings, observability, experiment clean-up, and operational tool development.
• Design, build, and maintain scalable, performant, and reliable software systems.

Skills

3+ years

Java

Kotlin

MongoDB

Aurora MySQL

AWS

Spring Boot

GraphQL

Job description

WHY JOIN US

If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!

ABOUT THE ROLE

We are looking for a Backend Developer to design, build, and maintain scalable systems for a Product- led engineering team. This person works in Java and/or Kotlin with Spring Boot, GraphQL, MongoDB, and Aurora MySQL on AWS, covering everything from operational tooling to system architecture. Comfort picking up compliance, cost-savings, and observability work matters here.

MUST HAVES

• 3+ years of professional, backend-focused software development experience.
• Proficiency in Java and/or Kotlin .
• Proficiency in a modern NoSQL database, MongoDB on Atlas.
• Proficiency in a modern relational database, Aurora MySQL on AWS.
• Experience building cloud-native distributed systems on AWS.
• Experience with the Spring Boot framework.
• API development with GraphQL (Netflix DGS) .
• Experience building and operating large-scale, high-performance, and resilient systems on a major cloud platform.

NICE TO HAVES

• Event-driven system development, ideally with Apache Kafka and/or SQS.
• AI-assisted coding experience.
• Terraform.
• Experience building microservices.
• API development with gRPC and REST.

WHAT YOU WILL DO

• Take on lower-priority engineering work the team lacks bandwidth for, including compliance and engineering maintenance, cost-savings, observability, experiment clean-up, and operational tool development.
• Design, build, and maintain scalable, performant, and reliable software systems.