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Open nowPosted 38 days ago

Senior Fullstack Software Engineer (Backend-focused, Java/Spring Boot)

Workable (global search)109,826 open roles

Where
Argentina
Work mode
Remote
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Your applicationOpen nowSenior Fullstack Software Engineer (Backend-focused, Java/Spring Boot)Workable (global search) · Argentina

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Early applications get read.

7.9% of postings close within 7 days. Measured by our own scanner across the market. Workable (global search) postings stay open a median of 2 days.

Share of postings closed within
  1. 1.6%1 day
  2. 3.6%3 days
  3. 7.9%7 days
  4. 14.9%14 days
  5. 34.0%30 days
This job: posted 38 days ago

Workable (global search) median: 2 days open

The posting

We are looking for Senior Fullstack Software Engineers (Backend-focused) to join FusionHit’s fast-paced, high-impact environment supporting. In this role, you will lead backend architecture and modernization initiatives for enterprise retail and supply chain systems built on Java/Spring Boot, driving design decisions and elevating engineering standards across teams, while remaining comfortable working across the stack.

You will play a key role in transforming legacy platforms into scalable, maintainable, and performance-driven services while collaborating closely with frontend engineers (working across multiple JS frameworks), DevOps, and product stakeholders.

This project focuses on modernizing enterprise-level retail systems that directly support business-critical store and supply chain operations.

Location: Remote – Latin America (must reside and have work authorization in LatAm)

Availability: Significant overlap with Mountain Standard Time (MST)

Requirements

  • BS/MS in Computer Science, Software Engineering, or related field.
  • 6+ years of experience in Backend/Fullstack Engineering.
  • 5+ years of hands-on experience with Java and Spring Boot building enterprise-grade REST APIs and microservices.
  • Strong experience with Postgres-backed data layers and API design for high-traffic retail systems.
  • Working knowledge of modern JS/TS frontend frameworks (React, Next.js, Angular, or Vue), sufficient to integrate and troubleshoot end-to-end across our multi-framework frontend stack.
  • Strong understanding of phased modernization strategies over legacy backend systems.
  • Deep experience with automated testing for backend services (unit, integration, contract) and Playwright/Jest awareness for E2E coordination.
  • Experience managing CI/CD pipelines in GitLab.
  • Experience implementing monitoring and observability strategies using Datadog.
  • Retail, store operations, or supply chain system experience (strong plus).
  • Comfortable engaging with stakeholders and incorporating real-world user feedback.
  • Excellent communication skills in English (C1 preferred, strong B2 may be considered).

Key Responsibilities

  • Lead backend architecture decisions and modernization strategy for Java/Spring Boot services.
  • Design scalable, secure REST APIs and microservices on Postgres-backed data stores.
  • Drive best practices in code quality, testing, and CI/CD automation.
  • Collaborate cross-functionally with frontend, DevOps, and product teams across multiple JS framework stacks.
  • Mentor mid-level engineers and promote engineering excellence.
  • Ensure performance optimization and monitoring using Datadog.
  • Lead phased migration from legacy backend systems to modern service architecture.
  • Incorporate stakeholder feedback and real-world retail workflows into system design.

Benefits

  • Certified as a Great Place to Work, offering a supportive and inclusive work culture.
  • Work from home position.
  • Personal and Professional Development Courses & Certifications.
  • Flexible Schedule.
  • 3 Sick Days per year.
  • Birthday Off.
  • Extra Days for Special Occasions.
  • Team Building Meal Reimbursement.
  • Equipment Granted.
  • Monthly Recognitions.
  • High Impact Committees.
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