Senior Java Backend Engineer - Cloud-Native Microservices Lead

Webflow, Inc.

Buenos Aires

Híbrido

ARS 108.178.000 - 185.448.000

Jornada completa

Hace 4 días
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Professional growth
Competitive USD-based pay
Exciting projects
Flextime

Descripción de la vacante

AgileEngine is seeking a Backend Developer to design, build, and maintain scalable systems for a product-led engineering team. The role focuses on Java and/or Kotlin with Spring Boot, GraphQL, MongoDB, and Aurora MySQL on AWS, handling everything from tooling to architecture.

You will contribute to observability, cost-savings, and compliance work as needed. The ideal candidate has 3+ years of backend experience, strong English and Spanish skills, and a proven track record building reliable,

Formación

  • 3+ years of backend-focused software development experience.
  • Proficiency in Java and/or Kotlin.
  • Proficiency in MongoDB Atlas and Aurora MySQL on AWS.
  • Experience building cloud-native distributed systems on AWS.
  • Experience with Spring Boot and GraphQL (Netflix DGS).
  • Upper-intermediate English.

Responsabilidades

  • Design, build, and maintain scalable, high-performance backend systems.
  • Contribute to architecture and design reviews to validate solutions.
  • Collaborate with cross-functional partners (engineers, product, data teams).
  • Partner with a Product Manager to clarify requirements and perform mid-level design work.
  • Mentor junior engineers and contribute to engineering culture.
  • Implement comprehensive testing and observability practices.

Conocimientos

Backend development
Java/Kotlin
MongoDB Atlas
Aurora MySQL
AWS
Spring Boot
GraphQL
Distributed systems
English (Upper‑intermediate)

Herramientas

NestJS
PostgreSQL
REST APIs
Terraform
CloudFormation

Descripción del empleo

AgileEngine

AgileEngine is an Inc. 5000 company that creates award‑winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people‑first culture has earned us multiple Best Place to Work awards.

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.
  • Upper‑intermediate English level.
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.
  • Contribute to system architecture and technical design, validating solutions through data and experimentation where appropriate.
  • Participate in code reviews and design reviews to maintain high engineering standards.
  • Collaborate closely with cross‑functional partners, including software engineers, product managers, data scientists, and designers.
  • Partner with a Product Manager and fellow engineers to clarify requirements and perform mid‑level design work, focusing primarily on coding, testing, and documentation.
PERKS AND BENEFITS
  • Professional growth: Mentorship, TechTalks, and personalized growth roadmaps.
  • Competitive compensation: USD‑based pay with education, fitness, and team activity budgets.
  • Exciting projects: Modern solutions with Fortune 500 and top product companies.
  • Flextime: Flexible schedule with remote and office options.
Requirements

+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.

  • 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.

Job Description

AgileEngine is an Inc. 5000 company that creates award‑winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people‑first culture has earned us multiple Best Place to Work awards.

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.
  • Upper‑intermediate English level.
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.
  • Contribute to system architecture and technical design, validating solutions through data and experimentation where appropriate.
  • Participate in code reviews and design reviews to maintain high engineering standards.
  • Collaborate closely with cross‑functional partners, including software engineers, product managers, data scientists, and designers.
  • Partner with a Product Manager and fellow engineers to clarify requirements and perform mid‑level design work, focusing primarily on coding, testing, and documentation.
PERKS AND BENEFITS
  • Professional growth: Mentorship, TechTalks, and personalized growth roadmaps.
  • Competitive compensation: USD‑based pay with education, fitness, and team activity budgets.
  • Exciting projects: Modern solutions with Fortune 500 and top product companies.
  • Flextime: Flexible schedule with remote and office options.
Requirements

+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.

  • 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.

We are seeking a dynamic, street‑smart Backend Developer with strong Python experience and a passion for problem‑solving using modern AI tools and approaches. This role is ideal for someone who can think critically, move fast, and contribute to building scalable backend systems, while also suggesting innovative and efficient solutions to help us achieve MVPs quickly.
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