{"id":722504,"url":"https://alion.io/job/fusionhit-senior-fullstack-software-engineer-backend-focused-javaspring-boot","title":"Senior Fullstack Software Engineer (Backend-focused, Java/Spring Boot)","company":{"id":677689,"name":"FusionHit","domain":"fusionhit.com","url":"https://alion.io/company/fusionhit","size_band":"51-200","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Peru"],"countries":["PE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":34000,"max_usd":102000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":7270},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"CI/CD","optional":false},{"name":"Datadog","optional":false},{"name":"GitLab","optional":false},{"name":"Java","optional":false},{"name":"Jest","optional":false},{"name":"Next.js","optional":false},{"name":"Playwright","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"Vue.js","optional":false},{"name":"JavaScript","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-08-27T00:00:00Z","employer_posted_date":"2026-08-27","last_verified_at":"2026-10-23T22:27:20Z","board_verified":true,"closed_at":null,"days_open":58,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":58},"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.\nYou 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.\nThis project focuses on modernizing enterprise-level retail systems that directly support business-critical store and supply chain operations.\nLocation: Remote - Latin America (must reside and have work authorization in LatAm)\nAvailability: Significant overlap with Mountain Standard Time (MST)\nRequirements\nBS/MS in Computer Science, Software Engineering, or related field.\n6+ years of experience in Backend/Fullstack Engineering.\n5+ years of hands-on experience with Java and Spring Boot building enterprise-grade REST APIs and microservices.\nStrong experience with Postgres-backed data layers and API design for high-traffic retail systems.\nWorking 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.\nStrong understanding of phased modernization strategies over legacy backend systems.\nDeep experience with automated testing for backend services (unit, integration, contract) and Playwright/Jest awareness for E2E coordination.\nExperience managing CI/CD pipelines in GitLab.\nExperience implementing monitoring and observability strategies using Datadog.\nRetail, store operations, or supply chain system experience (strong plus).\nComfortable engaging with stakeholders and incorporating real-world user feedback.\nExcellent communication skills in English (C1 preferred, strong B2 may be considered).\nKey Responsibilities\nLead 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