Technical Support Engineer (Java) — E‑Commerce SaaS

Full job description
About PhaseZero PhaseZero CxCommerce™ is a Composable, AI‑native B2B commerce platform delivering unified customer experiences for manufacturers and distributors across automotive, industrial, and heavy‑duty sectors. As a MACH Alliance–certified solution with embedded AI agents, prebuilt ERP/catalog integrations, and a cloud‑native, composable architecture, PhaseZero accelerates enterprise digital transformation while protecting existing systems and data. Recognized as an IDC Innovator (2025) in AI‑enabled B2B Digital Commerce, PhaseZero powers hundreds of millions of dollars in digital sales for customers ranging from mid‑market to Global Fortune 500 —including Dana Corporation and distributor groups such as VIPAR—on our CxCommerce™ platform.
The role
We're hiring a Technical Support Engineer who loves solving customer problems, digging into Java/Spring services, and partnering with Product &
Engineering to drive outcomes. You'll be the primary technical point of contact for enterprise customers: triaging, troubleshooting, and resolving issues; coordinating hotfixes and monthly releases; and ensuring an outstanding, measurable customer experience.
This is a hands‑on, customer‑facing role in a product company (not a services/SI model). Ideal for engineers with 5–10 years building, supporting, or operating commercial software products —especially B2B commerce or enterprise SaaS.
What you'll do
Own incident triage and resolution: reproduce issues, analyze logs, identify root causes, and drive fixes across Java/Spring services, integrations, and data layers.
Coordinate hotfixes and monthly releases with Product, QA, and Engineering; validate fixes and change notes.
Serve as a trusted technical advisor to customers and backup to the Customer Success Manager; translate business impact into technical priorities.
Build