Certifications

Microsoft Learn profile: https://learn.microsoft.com/en-us/users/sergeykozlov/

ClickHouse Database Professional

Issued by: ClickHouse
Date issued: April 17, 2026
Badge URL: https://www.credly.com/badges/b965e83c-b91d-4f51-b777-fcb271cec3ae/public_url
Description: Earners of the ClickHouse Database Professional badge can solve real-time analytical problems and build workflows using ClickHouse. In addition to understanding the architecture of how ClickHouse works, earners can define optimized tables, write efficient queries, and optimize the joining of tables. Earners also know how the updating and deleting of data can be done efficiently in ClickHouse using lightweight updates and deletes or the various deduplication table engines.

ClickHouse Observability Professional

Issued by: ClickHouse
Date issued: April 13, 2026
Badge URL: https://www.credly.com/badges/1c8a33ff-5281-443b-91f9-b22b6e6b14fd/public_url
Description: Earners of the ClickHouse Observability Professional badge understand ClickHouse internals and how to customize primary keys, partitions, and data types for the observability use case. Earners have practiced data enrichment, schema on read and schema on write with ClickHouse and how to use advanced techniques, such as materialized views and skipping indexes to improve query performance. Finally, earners will know how to set up alerts.

ClickHouse Observability Associate

Issued by: ClickHouse
Date issued: April 13, 2026
Badge URL: https://www.credly.com/badges/057bd52f-1c03-4205-a73c-76ba2e1cdaaa/public_url
Description: Earners of the ClickHouse Observability Associate badge understand the three Observability silos and how ClickHouse, OpenTelemetry, and HyperDX offer the best open-source solution. Earners have practiced ingesting logs, metrics, and application events, explored how to connect different data sources, and learned the basics of querying data using SQL and Lucene syntax in the HyperDX UI.

chDB Professional

Issued by: ClickHouse
Date issued: April 12, 2026
Badge URL: https://www.credly.com/badges/e688dbfc-8648-4abc-8e38-88e3dfef6347/public_url
Description: Earners of the ClickHouse chDB Professional badge understand how to use the fast in-process SQL OLAP engine chDB to speed up their analytics or ML workflow. Earners understand how to quickly query from a variety of sources and datatypes with chDB, how to optimize their workflow with chDB, and how to use chDB in their workflow with various chDB integrations.

ClickHouse Data Warehousing Professional

Issued by: ClickHouse
Date issued: April 12, 2026
Badge URL: https://www.credly.com/badges/c7f72280-5014-41e3-af75-b6bd8e9d8da9/public_url
Description: Earners of the ClickHouse Data Warehousing Professional badge understand how to ingest, structure, and manage data with ClickHouse. They are able to ingest data both in batches and continuously, and they understand the nuances of updating and deleting data with ClickHouse. Badge earners also know how to efficiently structure data in their ClickHouse data warehouse, and they can use ClickHouse to implement data governance and data quality assurance best practices.

ClickHouse Data Warehousing Associate

Issued by: ClickHouse
Date issued: April 12, 2026
Badge URL: https://www.credly.com/badges/8180f350-c967-4f94-a86c-a6b13b209a37/public_url
Description: Earners of the ClickHouse Data Warehousing Associate badge understand the fundamentals of ClickHouse architecture, including the foundational differences that make ClickHouse unique like the primary key, primary index, granules and parts. Earners are also able to use ClickHouse as a query engine. They are able to perform ad-hoc analyses using ClickHouse and they can execute queries on external data sources.

Apply AI: Analyze Customer Reviews

Issued by: Cisco
Date issued: November 24, 2025
Badge URL: https://www.credly.com/badges/5104fa8f-5eac-4763-bacf-68e987f3d2c7/public_url
Description: Cisco verifies the earner of this badge successfully completed the Apply AI: Analyze Customer Reviews Course. The learner has applied thematic analysis to analyze tables of text data with assistance of AI and spreadsheet apps. The learner has practiced choosing the right AI or non-AI tool for each task.

Reactive Architecture: Distributed Messaging Platforms

Course code: LB0109EN
Provided by: Akka
Issued by: Cognitive Class
Certificate URL: https://courses.cognitiveclass.ai/certificates/b27d15b9761b4c6e967b8f2411b7b1de
Issued on: September 21, 2025

Data Science for Business - Level 1

Issued by: IBM
Date issued: April 11, 2025
Badge URL: https://www.credly.com/badges/8acd062f-133d-439b-820a-3b9d37369a84/public_url
Description: This badge earner understands the relationship between collection and dissemination of data in technology. The individual also understands the public expectation of privacy and the legal and political issues surrounding them.

Advanced Kubernetes Operators

Issued by: IBM
Date issued: April 11, 2025
Badge URL: https://www.credly.com/badges/bb6cebda-08cd-46bc-b180-2002cf16c0a4/public_url
Description: This badge earner has developed advanced skills on building operators with Operator-sdk. They have demonstrated an understanding of the advanced topics of operator control loop reconciliation, deployment and management of operators using Operator Lifecycle Manager, and ways to test deployed operators.

Intermediate Kubernetes Operators

Issued by: IBM
Date issued: April 07, 2025
Badge URL: https://www.credly.com/badges/53672eb5-d2f5-42c4-891f-dfc37b6e491e/public_url
Description: This badge earner has developed skills for building operators with Operator-sdk. They have demonstrated an understanding of the ideas and architecture underlying Kubernetes operators, and successfully constructed and deployed simple Golang, Helm, and Ansible operators.

Beyond the Basics: Istio and IBM Cloud Kubernetes Service

Issued by: IBM
Badge URL: https://www.credly.com/badges/5faf169f-dbbd-4982-aa37-347396671d41/public_url
Issued to: Sergei Kozlov
Date issued: March 30, 2025
Description: The badge earner can install Istio in a cluster, deploy a sample app, and set up the Istio Ingress controller. The individual knows how to use metrics, logging and tracing to observe services. The earner is also able to perform simple traffic management such as A/B tests and canary deployments, secure a service mesh, and enforce policies for microservices.

Python Essentials 2

Issued by: Cisco
Badge URL: https://www.credly.com/badges/5c53ca12-3098-4ac7-a182-a9663c9af233/public_url
Issued to: Sergei Kozlov
Date issued: March 16, 2025
Description: Cisco, in collaboration with OpenEDG Python Institute, verifies the earner of this badge successfully completed the Python Essentials 2 course and achieved the student level credentials. Earners have knowledge and skills in intermediate aspects of Python programming, including modules, packages, exceptions, file processing, as well as general coding techniques and object-oriented programming (OOP), and prepares the learner for the PCAP – Certified Associate in Python Programming certification.

Python for Data Science

Issued by: IBM
Badge URL: https://www.credly.com/badges/0fc84102-5b6d-47d9-9333-1ea7d051fb42/public_url
Issued to: Sergei Kozlov
Date issued: February 22, 2025
Description: The badge earner is able to write their own Python scripts and perform basic hands-on data analysis using IBM’s Jupyter-based lab environment.

Python Essentials 1

Issued by: Cisco
Badge URL: https://www.credly.com/badges/7c9babe2-01f7-4e1f-8b86-4ef7140092d3/public_url
Issued to: Sergei Kozlov
Date issued: January 25, 2025
Description: Cisco, in collaboration with OpenEDG Python Institute, verifies the earner of this badge successfully completed the Python Essentials 1 course and achieved the student level credentials. Earners have knowledge of the concepts of computer programming, the syntax and semantics of the Python language as well as demonstrate the ability to accomplish coding tasks related to the essentials of programming in the Python language and resolve implementation challenges using the Python Standard Library.

Network Support and Security

Issued by: Cisco
Badge URL: https://www.credly.com/badges/1204fa8c-4028-450b-b1cf-a28692a7ac23/public_url
Issued to: Sergei Kozlov
Date issued: January 11, 2025
Description: Cisco verifies the earner of this badge successfully completed the Network Support and Security course and achieved this student level credential. Earner has knowledge to support endpoints, networks, and users including diagnostics and documentation as a member of a help desk team as well as an in-depth view of troubleshooting of networks and endpoints and knowledge and skills regarding supporting users and networks remotely. Participated in up to 10 labs and Cisco PT activities.

English for IT 2

Issued by: Cisco
Badge URL: https://www.credly.com/badges/d8bdc862-228b-446e-9545-e265802e2157/public_url
Issued to: Sergei Kozlov
Date issued: December 31, 2024
Description: Cisco, in collaboration with OpenEDG, verifies the earner of this badge successfully completed the English for IT 2 course and achieved the student level credentials. Earners know how to use grammar related to mood, sentence structure and conjunctions; they have an upper-intermediate knowledge of tenses; they can make logical deductions and polite requests, use key phrases related to networking, customer support, software and security engineering, and communicate in English at CEFR B2 level.

Simplifying Data Pipelines with Apache Kafka

Issued by: IBM
Badge URL: https://www.credly.com/badges/87eee3fa-a5e7-45be-b9c3-259570d34d22/public_url
Issued to: Sergei Kozlov
Date issued: December 08, 2024
Description: The badge earner understands the architecture, components and practical application of Kafka for addressing data engineering needs. This includes hands-on demonstration of the essential measures necessary to produce and consume messages using command-line tools, Java APIs, working with Kafka Connect and connecting Kafka to Spark.

Working in a Digital World: Professional Skills

Issued by: IBM SkillsBuild
Badge URL: https://www.credly.com/badges/4f7e9bde-f014-4354-a40a-c36973325226/public_url
Issued to: Sergei Kozlov
Date issued: October 26, 2024
Description: This credential earner understands key skills for professional success and core soft skills needed in the information technology workforce. This includes creating and delivering presentations; using agile approaches for working professionally to deliver quality work and experiences to customers; collaborating effectively with teams; communicating with impact; dealing with challenges in a controlled and focused manner; and solving problems and implementing solutions.

English for IT 1

Issued by: Cisco
Badge URL: https://www.credly.com/badges/b0ea56f5-9e93-4c64-b72a-858ed08d5215/public_url
Issued to: Sergei Kozlov
Date issued: October 26, 2024
Description: Cisco, in collaboration with OpenEDG, verifies the earner of this badge successfully completed the English for IT 1 course and achieved the student level credentials. Earners know how to use complex grammatical concepts correctly; they are familiar with concepts related to information security and job roles, and are able to understand phrases related to customer support; they can use vocabulary related to user experience, fraudulent calls, and network and software engineering.

Jira Agile Project Management + Jira Administration + Jira Agile

Issued by: EC-Council
Date issued: October 25, 2024
Certificate URL: https://codered.eccouncil.org/certificate/387ee32b-dc34-439e-86b3-f86925c58532?logged=true

Configure Juniper SRX Router Using J-Web

Issued by: EC-Council
Date issued: October 25, 2024
Certificate URL: https://codered.eccouncil.org/certificate/2f40e683-3c15-4003-9cc3-8dfe8130f400?logged=true

Fortinet Certified Fundamentals Cybersecurity

Issued by: Fortinet
Badge URL: https://www.credly.com/badges/5ea1ff5f-93f7-4a02-86da-f9bf2a31ced1/public_url
Issued to: Sergei Kozlov
Date issued: October 20, 2024
Description: The Fortinet Certified Fundamentals in Cybersecurity certification validates that the earner has mastered the technical skills and knowledge that are required for any entry-level job role in cybersecurity. The curriculum covers today’s threat landscape and the fundamentals of cybersecurity.

Introduction to the Threat Landscape 2.0

Issued by: Fortinet
Badge URL: https://www.credly.com/badges/18057159-6555-4d46-a599-587c0db06d5f/public_url
Issued to: Sergei Kozlov
Date issued: October 20, 2024
Description: The Introduction to the Threat Landscape 2.0 badge recognizes a fundamental understanding of the cyber threat landscape. The badge earner has demonstrated essential knowledge of the threats that endanger computer networks, the cast of bad actors who are behind cyber threats, and the cyber security principles that can keep users and computer networks safe.

LFEL1010: XSS Exploits and Defenses

Issued by: The Linux Foundation
Badge URL: https://www.credly.com/badges/21bc26a3-0550-45dc-9622-ed47052ce3d0/public_url
Issued to: Sergei Kozlov
Date issued: October 14, 2024
Description: Earners of the LFEL1010: XSS Exploits and Defenses badge understand the key concepts and practical applications of XSS vulnerabilities. They have hands-on experience identifying, exploiting, and mitigating reflected, stored, and DOM-based XSS using Arduino-based hardware setups.

Technical Introduction to Cybersecurity 1.0

Issued by: Fortinet
Badge URL: https://www.credly.com/badges/90419943-5234-4466-9c1c-caeefd033021/public_url
Issued to: Sergei Kozlov
Date issued: October 12, 2024

Advanced SQL

Issued by: Kaggle
Certificate URL: https://www.kaggle.com/learn/certification/sergeikozlovadmin/advanced-sql

Python

Issued by: Kaggle
Certificate URL: https://www.kaggle.com/learn/certification/sergeikozlovadmin/python

Cybersecurity Awareness - CAPC

Issued by: Certiprof
Badge URL: https://www.credly.com/badges/51d52629-50a0-424f-8fe8-d0334571fd2c/public_url
Additional certificate URL: https://app.kajabi.com/certificates/a869f766
Issued to: Sergei Kozlov
Date issued: October 04, 2024
Description: The holders of this badge have validated and demonstrated a comprehensive understanding of cybersecurity principles and best practices. This badge highlights the individual’s ability to recognize and address common cyber threats, implement effective protective measures, and contribute to a secure digital environment. They understand the importance of cybersecurity and its economic and legal implications.

Introduction to ITIL® V4

Certificate URL: https://simpli-web.app.link/e/Fl9xK2TpoNb
Duration / validity note: 03.10.2024 – 90 days

Scrum Foundation Professional Certification - SFPC™

Issued by: Certiprof
Badge URL: https://www.credly.com/badges/b34b474c-a26e-4dcc-9965-9721f30a53ff/public_url
Additional certificate URL: https://certiprof.com/pages/scrum-foundation-professional-certificate-sfpc-en-sp
Issued to: Sergei Kozlov
Date issued: October 01, 2024
Expires on: October 01, 2027
Description: Scrum Foundation Professional Certification holders have developed entry-level skills in Scrum that endorse their fundamental knowledge in this framework. They have demonstrated an understanding of the empirical Scrum pillars of transparency, inspection, and adaptation. Their primary focus is on the work of Sprint to make the best possible progress toward these goals.

Enterprise Security in Practice

Issued by: IBM SkillsBuild
Badge URL: https://www.credly.com/badges/65ab72ae-8273-487f-a69c-9a7b7a6267bc/public_url
Additional certificate URL: https://skillsbuild.org/college-students/digital-credentials
Issued to: Sergei Kozlov
Date issued: September 18, 2024
Description: This badge earner has completed all the learning activities included in this online learning experience, including hands-on experience, concepts, methods and tools related to the enterprise security domain. The individual has demonstrated skills and understanding in the approaches to elevate an organization’s overall security posture, by adopting practices, methods and tools that increase enterprise cyber resilience.

Containers & Kubernetes Essentials

Issued by: IBM
Badge URL: https://www.credly.com/badges/98bc128c-ea37-4b8a-a333-c8b671401c1c/public_url
Additional certificate URL: https://courses.cognitiveclass.ai/certificates/b77fd79bc6da4e62a7734037e865ebee#
Issued to: Sergei Kozlov
Date issued: September 04, 2024
Description: This badge earner is able to build and run a container image and understands Kubernetes architecture. They know how to: write a YAML deployment file; expose deployment as a service; manage applications with Kubernetes; use ReplicaSets, auto-scaling, rolling updates and service binding; deploy services; and reap the benefits of OpenShift, Istio and other key tools.

LFEL1006: Securing Projects with OpenSSF Scorecard

Issued by: The Linux Foundation
Badge URL: https://www.credly.com/badges/6e9bd9fe-5008-4e95-ba83-92846bf487f3/public_url
Issued to: Sergei Kozlov
Date issued: August 22, 2024
Description: Earners of the LFEL1006: Securing Projects with OpenSSF Scorecard badge have demonstrated a working knowledge of OpenSSF Scorecard. They have a strong understanding of how Scorecard can be integrated with any GitHub project, and how to strategically incorporate it to help improve security on any software development lifecycle.

IBM Cloud Essentials

Issued by: IBM
Badge URL: https://www.credly.com/badges/df3d9d45-dff7-47cc-b80b-37307be60230/public_url
Issued to: Sergei Kozlov
Date issued: August 19, 2024
Description: This badge earner is able to relate how the IBM Cloud enables the different service (IaaS, PaaS, SaaS) models and different deployment (Public, Hybrid, Private) models of cloud computing. They know how to: access the IBM Cloud using various tools and interfaces; discover appropriate IBM Cloud products or services available for specific functionality; articulate the different ways IBM Cloud delivers services to developers and operational teams; and summarize core groups of available services.

AWS Knowledge: Architecting

Issued by: Amazon Web Services Training and Certification
Badge URL: https://www.credly.com/badges/7b54a75f-a1c2-4f7a-a1c5-d4452818f9f8/public_url
Issued to: Sergei Kozlov
Date issued: August 06, 2024
Description: Earners of this badge have developed technical skills and knowledge of AWS concepts and services with a focus on designing solutions on AWS using best practices.

LFS111: Open Source and the 5G Transition

Issued by: The Linux Foundation
Badge URL: https://www.credly.com/badges/01dc8be9-d29c-44df-854e-b2003a866fba/public_url
Issued to: Sergei Kozlov
Date issued: August 04, 2024
Description: Earners of the LFS111x: Open Source and the 5G Transition badge are equipped to make informed decisions, support initiatives, and contribute to projects that relate to open source networking and emerging technologies. They carry an understanding of the open source ecosystem with discernment on how to support collaboration between open source projects and their own organization, including sustainable implementation through an Open Source Program Office.

AWS Knowledge: Cloud Essentials

Issued by: Amazon Web Services Training and Certification
Badge URL: https://www.credly.com/badges/5e694540-ba36-4da2-b333-1c68efc87754/public_url
Issued to: Sergei Kozlov
Date issued: July 19, 2024
Description: Earners of this badge have developed knowledge of foundational AWS Cloud concepts with a focus on AWS Compute, Storage, Networking and Database services, security, architecture, pricing, and support.

Ethical Hacker

Issued by: Cisco
Badge URL: https://www.credly.com/badges/b1969e00-9bf9-44f0-925c-63f48a1335cf/public_url
Issued to: Sergei Kozlov
Date issued: July 16, 2024
Description: Cisco verifies the earner of this badge successfully completed the Ethical Hacker course. The holder of this student level credential has a broad understanding of the legal and compliance requirements and is proficient in the art of scoping, executing, reporting vulnerability assessments, and recommending mitigation strategies. The holder has completed up to 34 hands-on activities using Kali Linux, WebSploit, and other tools.

LFEL1005: Security Self-Assessments for Open Source Projects

Issued by: The Linux Foundation
Badge URL: https://www.credly.com/badges/41149394-decc-43bf-8938-212b6d0c341b/public_url
Issued to: Sergei Kozlov
Date issued: July 15, 2024
Description: Earners of the LFEL1005: Security Self-Assessment for Open Source Projects badge have worked to create a security self-assessment that will aid their project in planning, joint security assessments, and security audits.

LFEL1014: Scaling Cloud Native Applications with KEDA

Issued by: The Linux Foundation
Badge URL: https://www.credly.com/badges/cf3a91f5-16b3-4a91-9b9b-49c5fc2b5deb/public_url
Issued to: Sergei Kozlov
Date issued: July 14, 2024
Description: Earners of the LFEL1014: Scaling Cloud Native Applications with KEDA badge demonstrate understanding of Kubernetes autoscaling using KEDA. They can manage and scale cloud native applications in response to real-time events and scale applications with help of built-in scalers.

LFC108: Cybersecurity Essentials

Issued by: The Linux Foundation
Badge URL: https://www.credly.com/badges/7472a55a-ccd4-4b8d-ae5b-dd42eba4c3c0/public_url
Issued to: Sergei Kozlov
Date issued: July 14, 2024
Description: Earners of the LFC108: Cybersecurity Essentials badge can apply security practices and precautions during online activities to minimize risks and securely protect personal and professional information from exposure and compromise. They can also identify what to do if a data breach occurs.

Network Defense

Issued by: Cisco
Badge URL: https://www.credly.com/badges/27f48644-532b-4bfc-98aa-2b4140fe7bed/public_url
Issued to: Sergei Kozlov
Date issued: July 13, 2024
Description: Cisco verifies the earner of this badge successfully completed the Network Defense course. The holder of this student-level credential has a broad understanding of techniques to monitor and protect the network, including access control, firewalls, cloud security, and cryptography. They are also familiar with how to evaluate and respond to security alerts.

Endpoint Security

Issued by: Cisco
Badge URL: https://www.credly.com/badges/7177ed6a-04f3-4289-84e1-751e9706ebe5/public_url
Issued to: Sergei Kozlov
Date issued: July 09, 2024
Description: Cisco verifies the earner of this badge successfully completed the Endpoint Security course. The holder of this student-level credential has a broad understanding of basic concepts of network security, as well as operating systems and endpoint security.

Networking Basics

Issued by: Cisco
Badge URL: https://www.credly.com/badges/aae671f4-7c42-4a0d-8ed1-c971a470b7f5/public_url
Issued to: Sergei Kozlov
Date issued: July 05, 2024
Description: Cisco verifies the earner of this badge successfully completed the Networking Basics course and achieved this student level credential. Earner has knowledge of the types of networks, how they work, how devices send and receive data, the types of network cabling, how IP addresses find information on the Internet, how transport and applications operate, and has practiced building a home wireless network. Participated in up to 13 Cisco Packet Tracer activities.

Verified International Academic Qualifications

Issued by: World Education Services
Badge URL: https://www.credly.com/badges/2d28de4b-b1b2-4a2e-a0f2-2d483700ff59/public_url
Issued to: Sergei KOZLOV
Date issued: October 13, 2023
Description: This badge indicates that World Education Services (WES) has evaluated the associated credential on behalf of the holder, verifies the authenticity of the claimed credential, provides assurance that the awarding institution and/or program was accredited at the point that the credential was issued, and indicates that the associated credential has been assessed for its Canadian equivalency. Please see the evidence link below which is verification of only the credential with which it is associated.