Senior Java Integration Developer (AWS)

Location: CABA, Buenos Aires, Argentina; candidates must be within local travel distance to Buenos Aires. The role starts remotely until a coworking space is established in CABA.

Company

hirify.global delivers ultra-luxury hospitality and guest services at sea as an extension of the Ritz-Carlton brand.

What you will do

• Convert MuleSoft applications built with Mule XML and DataWeave into Spring Boot and plain-Java services running on AWS Lambda or Fargate.
• Design configuration-driven integration services that allow multiple integrations to share a common codebase.
• Build, deploy, and operate services using Docker, ECR, Secrets Manager, S3, SNS/SQS, EventBridge, and CloudWatch.
• Create CI/CD pipelines with automated testing, container publishing, multi-environment deployments, approvals, and rollbacks.
• Automate migrations with reusable scaffolds, templates, common libraries, code generators, smoke tests, and drift checks.
• Mentor developers, conduct code reviews, document standards, and collaborate with D365, Workday, and platform teams on integration contracts.

Requirements

• 5+ years of professional Java development with modern Java 17/21, collections, streams, concurrency, HTTP clients, and Jackson.
• Strong Spring Boot and REST API design experience, including contracts, validation, error handling, and versioning.
• Hands-on experience with AWS Lambda, Fargate/ECS, S3, Secrets Manager, IAM, CloudWatch, EventBridge, and SNS/SQS.
• Strong CI/CD experience with GitHub Actions or comparable tools, Docker, multi-environment promotion, pipeline secrets, and automated rollbacks.
• Working knowledge of Infrastructure as Code using Terraform, AWS CDK, SAM, or CloudFormation.
• Daily professional use of AI coding assistants, with the ability to evaluate their limitations and protect code quality through reviews and tests.
• Ability to read MuleSoft flows and DataWeave or ramp up quickly; knowledge of SOLID, layered architecture, testability, idempotency, observability, and Git workflows.

Nice to have

• Experience migrating MuleSoft or other iPaaS applications to Java and Spring Boot.
• Experience with Dynamics 365 FO, OData, Data Management APIs, Kafka, GraphQL, OAuth2, or Azure AD.
• Exposure to React or Angular, Python or Node.js, and cross-language development.
• Experience creating custom prompts, agents, MCP servers, or Copilot extensions.
• Familiarity with Datadog, New Relic, OpenTelemetry, OpenAPI, JSON Schema, MapStruct, JUnit 5, Mockito, or Testcontainers.

Culture & Benefits

• Work in an inclusive hospitality environment guided by trust, honesty, respect, integrity, and commitment.
• Prioritize pragmatic solutions, automation, reliable production outcomes, and sensible trade-offs.
• Use AI tools to accelerate delivery while reviewing every change, writing tests, and owning the result.
• Collaborate across backend, platform, ERP, and front-end areas when needed.