Description
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 a

📌 Senior Fullstack Software Engineer (Perú)
🏢 FusionHit
📍 Perú