Денис

Diemientov Denys
HEAD OF TECHNICAL MONITORING

CONTACTS
[відкрити контакти](див. вище в блоці «контактна інформація») PROFILE
[відкрити контакти](див. вище в блоці «контактна інформація») Technical Monitoring Leader with hands-on experience in fintech
LinkedIn operations, payment systems monitoring, incident management, and
transaction processing within banking environment. Proven track record in
Telegram leading teams, coordinating critical incident resolution, improving
monitoring processes, and ensuring stability of business-critical services.
Kyiv, Ukraine
Strong background in Grafana, SQL, payment flows, operational reporting,
TECHNICAL SKILLS and cross-functional collaboration.

Monitoring Systems: Grafana, WORK EXPERIENCE
Alerting Tools
Oschadbank
SQL: queries, joins, aggregations,
Head of Technical Monitoring
reporting Department | Apr 2026 - Present
Databases: Oracle, Lead daily operations of Technical Monitoring Department and team
PostgreSQL(basic/intermediate) coordination.
Manage monitoring processes, incident response flow, and
Excel / Google Sheets (advanced) escalation procedures.
Database Tools: Toad, DBeaver Ensure continuous supervision of payment services, transaction
systems, and critical IT services.
Incident Management
Coordinate internal teams during high-priority incidents and service
Operational Reporting disruptions.
Improve operational procedures, reporting processes, and service
Process Automation
stability.
Payment Systems Operations
Deputy Head of Technical Monitoring
CORE Department | May 2025 - Apr 2026
COMPETENCIES Supervised monitoring operations and task execution within
department.
Coordinated incident handling and communication between
IT Systems Monitoring
technical teams.
Incident Management Controlled issue resolution timelines and escalation efficiency.
Participated in optimization of monitoring standards and internal
Escalation Coordination
procedures.
Team Leadership Chief Engineer, Technical Monitoring
Payment Systems Monitoring Department | Sept 2022 - May 2025
Transaction Flow Control Monitored transaction systems, payment flows, and infrastructure
alerts.
Root Cause Analysis
Investigated incidents, processing failures, and root causes.
Operational Process Worked with SQL queries for operational analytics and reporting.
Maintained Grafana dashboards, alerts, and performance metrics.
Improvement
Supported Visa / MasterCard related operational requests and
Cross-functional Collaboration transaction issues.
Service Stability Management
24/7 Operations Control
SLA / Response Management
SOFT SKILLS
EDUCATION
Leadership 2017 - 2021
National Academy of the
Analytical Thinking Security Service of Ukraine
Problem Solving Bachelor’s Degree in Cybersecurity
Decision Making Under Pressure
Responsibility & Ownership
Communication Skills
Attention to Detail
Prioritization
Adaptability
Team Development

LANGUAGES
English - Intermediate
Ukrainian - Native