The L3 Support Engineer is the deep technical investigation specialist within the support
organization. This role exists to permanently eliminate the root causes of recurring tickets, not
to process individual incidents. L3 engineers work on the hardest problems: payroll
back-calculation failures, integration breakdowns, compliance regulation misconfigurations,
deployment-caused regressions, and cross-system issues that span configuration, product, and
infrastructure layers. L3 engineers do not own client accounts or manage queues. They receive
escalations from Support Engineers, investigate to root cause, coordinate fixes with Product,
Engineering, Compliance, and Configuration teams, and close the loop by documenting findings
that feed both the knowledge base and AI training data. Their success metric is not tickets
resolved — it is recurring issues permanently eliminated.
Qualifications / Skills
Minimum Requirements for Candidates
Demonstrated expertise in root cause analysis methodologies; able to trace complex, multi-system issues through multiple layers (UI, API, configuration, regulation, database)
Strong technical writing; able to produce clear root cause reports and KB articles usable by both humans and AI systems
Effective cross-team collaboration; able to drive accountability for fixes through influence and clear documentation
Experience with dev task creation, CI/CD pipeline awareness, and deployment impact analysis
Understanding of gross-to-net payroll calculations, statutory compliance requirements, back-calculation methodology, and country-specific regulation steps
Expectations for Ideal Candidates
Bachelor's degree in Computer Science, Engineering, Mathematics, or equivalent
Minimum 3 years in L3/Tier 3 technical support, application engineering, or payroll system Implementation
Deep experience with at least one of: payroll regulation/compliance, HCM system