Senior Fullstack Software Engineer (Backend-focused, Java/Spring Boot)
Empresa : Fusionhit
Tipo de empleo : Jornada completa
Remote / Work from Home
Descripción del trabajo - Senior Fullstack Software Engineer (Backend-focused, Java/Spring Boot)
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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📌 Senior Fullstack Software Engineer (Backend-Focused, Java/Spring Boot) (Rincón de los Sauces)
🏢 FusionHit
📍 Rincón de los Sauces