Open to opportunities

Ferzerino User

@ferzerinouser

Application support engineer specializing in L2–L3 incident resolution, SQL diagnostics, and client-server troubleshooting for corporate systems.

Thailand

Message

What I'm looking for

I’m looking for full-time remote work as an Application Support/L2–L3 Support Engineer, handling ticket workflows, SQL-based data validation, and incident diagnosis to resolve issues end-to-end with clear technical documentation.

I’m an IT specialist with more than 3 years of experience in supporting and maintaining corporate information systems, with a focus on L2–L3 service ownership and end-user issue resolution. I process and handle requests in the OTRS ticketing system, analyze problems, and oversee cases until successful resolution.

I specialize in working with SQL (PostgreSQL, Oracle), diagnosing incidents using logs, metrics, and monitoring tools (Grafana, ELK Stack), and analyzing client-server interactions to identify root causes. I also reproduce defects, perform software testing, prepare detailed tasks for development, and create technical documentation while collaborating with analysts, developers, and business users.

Experience

Work history, roles, and key accomplishments

L2-L3 Support Engineer

LifeIT

Aug 2022 - Nov 2025 (3 years 3 months)

Processed and resolved user requests in the OTRS ticketing system, diagnosing incidents and monitoring high-load corporate information systems. Supported cases through resolution, worked with PostgreSQL and Oracle via SQL (including PL/SQL), and prepared technical documentation.

Education

Degrees, certifications, and relevant coursework

MIREA — Russian Technological University

Information Systems and Technologies

2022 -

Higher education at MIREA—Russian Technological University in Information Systems and Technologies, specializing in Artificial Intelligence Technologies in Security.