FullStack - Java (W2 Candidate Only)

Role: Senior Backend Engineer (W2 Only) Location: 100% Remote Duration: 8+ Months Lead Engineer – POS Managed Services Highly experienced Lead Engineer with strong Java and backend expertise, responsible for leading support and development activities for critical POS systems in a managed services environment. This role requires deep technical knowledge, strong ownership, and the ability to lead incident triage, drive architecture discussions, and guide the team in a fast-paced, continuously changing environment involving store systems, device integrations, and cloud/backend platforms. Responsibilities ● Lead production incident triage calls and drive issues to resolution across store, backend, and cloud systems ● Troubleshoot complex issues involving POS applications, backend services, databases, and store devices ● Support and debug integrations with store peripherals (payment devices, printers, scanners, cash drawers, pin pads, etc.) ● Design and review solutions for new requirements, enhancements, and system integrations ● Understand and support deployment architecture across store, cloud, middleware, and backend layers ● Coordinate with offshore, onshore, vendors, and cross-functional teams during incidents and releases ● Own multiple workstreams simultaneously and ensure timely resolution of issues ● Guide and mentor engineers, working hands-on with the team on daily support and development tasks ● Drive root cause analysis and implement long-term fixes for recurring production issues ● Participate in release planning, deployment validation, and production readiness activities ● Ensure system stability during high-volume events, store rollouts, and holiday readiness periods ● Contribute to improving monitoring, alerting, automation, and operational processes Required Skills ● Strong Java and backend development / troubleshooting experience ● Strong SQL / PostgreSQL / relational database expertise ● Proven experience leading production incident triage sessions ● Strong understanding of retail or store systems architecture ● Experience working with device integrations (payment terminals, printers, scanners, cash drawers, peripherals) is an add on. ● Strong understanding of deployment architecture and distributed systems ● Experience with cloud platforms (GCP / Kubernetes / GKE or similar) ● Ability to work in fast-paced, continuously changing environment ● Strong problem-solving and root cause analysis skills ● Strong communication and leadership skills ● Ability to guide team members and work hands-on with them daily ● Experience coordinating with offshore teams ● Self-driven, highly accountable, and able to own multiple critical areas Nice to Have ● Retail / POS domain expertise ● Experience with payment integrations (Adyen / Verifone / Ingenico / payment gateways) ● Experience in managed services / production support environments ● Experience designing architecture for new features or integrations ● Experience with store deployments and large-scale rollouts ● Experience supporting high-volume retail events / holiday readiness