Senior Technical Support Engineer L3-L4

We are expanding our Technical Support team and are looking for a highly experienced Technical Support Engineer (L3-L4) to join a long-term enterprise project in the energy sector.

You will be working on a mature enterprise project in the energy sector in Northern Ireland
, where the system has been in production.

This is an existing client
, and the focus is on advanced support, maintenance, and continuous improvement
.

The environment is highly regulated, making system reliability and billing accuracy critical
.

The system is actively used by end customers, which means: real data, real financial flows, real impact of every issue.

Support here is not a “ticket-processing role” – it is a core function ensuring system stability, revenue continuity, and customer trust
.

Responsibilities:

• Provide L3–L4 support for a live enterprise billing & CRM system
• Investigate and resolve complex production issues (data, logic, integrations)
• Work closely with customers (in English) to clarify issues and provide solutions
• Analyze logs, database records, and system behavior to identify root causes
• Support billing, invoicing, rating, and customer lifecycle processes
• Collaborate with development, QA, and delivery teams on issue resolution
• Participate in post-release stabilization and continuous system improvements
• Contribute to knowledge base and documentation

Requirements:

• 7+ years of experience in technical support (L3/L4 level) or similar roles
• Strong hands-on experience with production troubleshooting
• Confident in writing and analyzing SQL queries
• Ability to understand complex systems end-to-end (backend + integrations)
• Strong analytical and investigative thinking
• Experience working with enterprise systems (CRM, billing, financial systems)
• Advanced English (C1) – must be comfortable communicating with customers
• Ability to work independently without step-by-step guidance

Will Be a strong advantage:

• Experience with Oracle databases
• Background in QA or software development
• Experience in energy / utility domain
• Experience supporting live billing systems.

Working with Max Bill, you will receive:

• 20working days ofannual vacation per year, plus paid public holidays.
• Provision ofsick/personal leave.
• Paid trainings, conferences, seminars, and certification courses, classes in English.
• On-the-job mentoring program tolearn from experienced colleagues.
• The possibility ofremote work and aflexible schedule.