Максим

MAKSYM SUKHAREV
OPS Engineer / Security Engineer
tan4ik1​@gmail.com [открыть контакты](см. выше в блоке «контактная информация») Chernihiv, Ukraine

[открыть контакты](см. выше в блоке «контактная информация»)

Professional Experience

Information Security Engineer 08/2024 – 12/2025
Lemtrans⁠ Ukraine
Orchestrated internal penetration testing, Cisco ASA/​FTD stress-testing, and Oracle
WAF auditing, developing custom Bash/​Python scripts for attack simulation and
fine-tuning detection logic.
Proactively tracked emerging attack vectors (e.g., ClickFix), developing and testing
AppLock rules and ESET HIPS policies to neutralize zero-day threats and malware
delivery techniques.
Engineered Splunk workflows: developed advanced SPL queries for threat hunting,
designed real-time dashboards for anomaly detection, and automated incident
response triggers.
Implemented comprehensive vulnerability management using containerized toolsets
(Nmap, Nikto, Wapiti, Docker, SQLmap), ensuring continuous automated assessment
and rapid remediation.
Automated Privileged Access Management (Delinea PAM) via Ansible and managed
advanced email security (Amavis, SpamAssassin) by performing forensic analysis and
tuning heuristic filters.
Led monthly CTF-style workshops for engineering teams and delivered strategic
reports to management on security posture, AI/​LLM usage policies, and Quantum
threats.

Production Engineering Specialist Ops Department 08/2021 – 04/2024
FORM⁠ Ukraine
Installation, configuration, and maintenance of customer Java applications on Solaris
and Linux operating systems, ensuring operational stability and high availability of
services.
Predominantly used Solaris for mission-critical applications, with additional instances
on Linux.
Maintenance, configuration, and updating of a distributed application, guaranteeing
its continuous operation.
Provided technical support to clients using this application, including solving clients'
technical issues and consultations on optimal system use.
Installation and configuration of a distributed Java application with a modular
architecture in a data center.
Used nginx on Solaris and Linux.
Installation and regular updates of client SSL certificates configured in nginx.
Also experienced in using IIS.
Experience in using MySQL and MSSQL.
Possess basic knowledge of Oracle DB.
Worked with email systems like sendmail, addressing issues with email blacklists and
subsequent removal from these lists.
Configuration and management of DNS, ensuring correct domain name resolution,
creation, and maintenance of client domains.
Creation and use of bash scripts for simplifying routine tasks and processes.
Participation in recovery processes after serious failures, minimizing data loss and
restoring application functionality within critically short timelines.
Worked with GitLab/​GitHub and TeamCity for continuous integration and delivery
of projects.
Used Ansible for automation of configuration and management.
Used Docker to enhance development flexibility and efficiency.
Completed courses on Google Cloud to expand competencies in cloud technologies.
Experienced in servicing QlikView servers.
Technologies: Solaris, Linux, Windows, nginx, MySQL, MSSQL, DNS, bash,
virtualization technologies, basics of working with AWS, Google Cloud.
Skills: MySQL - Shell scripting - Tomcat - Solaris - Customer Support - QlikView -
Troubleshooting - Software Deployment - Server Administration - SQL - sendmail -
Oracle DB - Bash - nginx - F5 BigIP - Linux System Administration - Technical
Support - IT Hardware Support - System Deployment - Linux - rundeck - Microsoft
SQL Server - IIS - DNS - Infrastructure - Active Directory - mssql

Production Engineering Specialist 11/2019 – 08/2021
FORM⁠ Ukraine
Installation, configuration, and maintenance of customer Java applications
on Solaris and Linux operating systems, ensuring operational stability and
high availability of services. Predominantly used Solaris for mission-critical
applications, with additional instances on Linux.
Maintenance, configuration, and updating of a distributed application,
guaranteeing its continuous operation.

Production System Administrator 04/2007 – 11/2019
WORLDAPP, Inc.⁠ Ukraine
Providing security for company and monitoring security of production system.
Updating and deploying web applications on production system (ant scripts,
CruiseControl).
Making custom (to meet specific demands) installation of application for
customer (creating installation CD, writing instructions) and performing
application installation in different configurations (DBMS - MySQL, MS
SQL, ORACLE, DB2; Web – apache, IIS; jsp container/​app server – tomcat,
WebSphere, F5 Big-IP).
Remote (30 servers) and local server hosting administration (10 servers).
Updating technical documentation on the production system. Participation in
preparing answers on RFI for customers (security related questions).
Analyzing demands and choosing solutions for providing collaboration and
documentation (SharePoint, JIRA, Confluence).

System Administrator 06/2004 – 03/2007
State administration of the Treasury of Ukraine in Chernihiv region Chernihiv, Ukrane
Installation and supporting antivirus system.
Setting up and supporting router for organization (routing, firewall).
Performing tasks due to providing informational and network security.
Supporting mail servers with MailSweeper and MS Exchange.
Working with DBMS MS SQL (doing reports and back-up).
Solving problems with servers and workstations software.

System Administrator 08/1999 – 08/2003
ITEC Chernihiv, Ukraine
Maintaining local servers (Mail+antivir+antispam,Web, CVS, FTP, samba,
proxy).
Local network and remote workplaces administration and support, office and
system software installation and control of efficiency.
Protecting network and server from the unauthorized access and virus
attacks.
Consulting and teaching staff how to work with different software products.
Analyzing demands and choosing software for company and branch
establishments.
Taking part in joint actions (with Ukrtelecom company) to connect people to
Internet using xDSL (Sirius-128) equipment.

System Administrator 05/1998 – 08/1999
Advertising agency 'Gold Future' Chernihiv, Ukraine
Installing, tuning and supporting software for company.
Solving problems with software and network (network equipment's, OS and
services network settings).
• Consulting and teaching staff how to work with different software products.

Education

Technologist, Organization management 2000 – 2002
Central Institute of post diploma pedagogical education. Chernihiv, Ukraine

Engineer, IT 1996 – 1997
Chernihiv Technological University Chernihiv, Ukraine

Technologist, Radio electronics 1992 – 1996
Chernihiv Radio-Mechanical technical secondary school. Chernihiv, Ukraine

Profile

As a technology enthusiast and experienced specialist in system administration with over 15 years of experience
and an emerging interest in the world of DevOps, I possess profound knowledge and practical experience in
infrastructure management, configuration of client and distributed applications, and their environments.
Currently, I am expanding my expertise into cloud technologies. I am dedicated to attaining a deeper
understanding of DevOps practices to facilitate my professional development further.InterestsIn my free time, I
enjoy outdoor activities with my family and reading books. I am particularly interested in the development of
artificial intelligence, the gaming industry and cybersecurity and their application in professional activities and
their impact on life.
Skills

Working in mission-critical prod environments Willingness to learn and adapt to new technologies

Attention to detail and responsibility