Serhii Chikunkov

***** ******** **, *****, ***, Utah, 84094. Phone: 801-***-****

e-mail: ad11sa@r.postjobfree.com Linkedin: https://www.linkedin.com/in/sergiichikunkov GitHub: https://github.com/zlinuxfan CodePen: https://codepen.io/collection/OLvkeP Summary

Software developer with over 7 years of experience, mainly in Java. I have experience with high load systems built with Java and Python. Basic knowledge of data science, machine learning algorithms. I have worked with development of modules and functions of enterprise- level products, working on problems with a modern architecture of mathematical algorithms, analyzing requirements, providing feedback and suggestions for improvement, supervising the entire project.

I seek to use proven software development and engineering skills to expand and improve applications.

Technical skills

Programming languages: Java, Python, JavaScript.

Platforms: Linux, Mac OS X.

Automation tools: Selenium WebDriver (Java), TestNG/JUnit, Jasmine, Mockito/JMock.

Frameworks: Spring, Hibernate, jQuery.

CI/CD: Jenkins, TeamCity.

Cloud solutions: AWS Services, Google Cloud.

Databases: PostgreSQL, MySQL, Oracle, MongoDB, Redis.

Issue Tracking: Jira, Bugzilla.

Version control: Git, SVN.

Experience

11/2022 — present time, Senior Software Engineer at Nu Research And Development. (nurd.com)

Responsibilities:

● Design and develop backend solutions web applications.

● Build and maintain APIs.

● Optimizing applications for performance, scalability, and reliability.

● Designing and implementing databases and data models to support the applications.

● Troubleshoot production issues and provide effective solutions. Technologies: Java EE, Postgres, Spring, REST API, Swagger, Redis, RabbitMQ, Docker, AWS services.

12/2021 — 10/2022, Software Engineer at Grid Dynamics. (griddynamics.com) Responsibilities:

● Component migration support and implementation of missing functionalities on the Macy's services on GCP migration project.

● PFL Improvements, Supply Chain, Supply Chain IVM. Analysis and prediction of combinational relationships of applications as well as the resolution of deep dependencies.

Technologies: Java EE, Spring, SOAP Web Services, RabbitMQ, Google services. 06/2016 — 08/2021, Software Engineer at Comodo Threat Research Lab.

(threatlabs.comodo.com)

Responsibilities:

● Advanced File Analysis System. Valkyrie - Comodo. (verdict.valkyrie.comodo.com)

● Quickly determine the characteristics and status of user files.

● Determining the status of files. Unlike traditional signature-based malware detection methods, multiple analysis is performed using run-time behavior. Technologies: PostgreSql, Java EE, Python, JSLibrary, Spring SOAP WebServices, RabbitMQ, Redis, Elasticsearch.

05/2014 — 06/2016, Software Engineer. (freelancing) Responsibilities:

● Cluster analysis for applications: probability and mathematical statistics: applying machine learning for pattern recognition.

● Multidimensional Particle Swarm Optimization for Machine Learning and Pattern Recognition.

● Computer vision:

o compute the harmonic variance into a graph Laplacian spectrum based segmentation framework in order to accurately align the in- focus measure responses on the image;

o energy Efficient Data Flow Transformation for Givens Rotation based QR Decomposition;

o detection of manipulated regions on a single image using ELA methods and pre-trained neural network (TensorFlow).

● Applications for CEO:

o translation sites using Google translator;

o creation of database quick Google tips (Live search); o packet monitor activity of selected branches forums; Technologies: Java SE, Python, C++, C#, TensorFlow, C#/.NET, OracleDb, MS SQL Server, PostgreSql, JSLibrary and SOAP WebServices

06/2012 — 05/2014, Director at Midas Group.

Responsibilities:

● Development of business plans and investment return strategies.

● Budget preparation and control of project implementation.

● Supervision of sales managers and technical personnel. Technologies: Microsoft Excel, Life Business.

09/2010 — 06/2012, Director at Ltd Food Trading Group. Responsibilities:

● Development of business plans and investment return strategies.

● Budget preparation and control of project implementation.

● Supervision of sales managers and technical personnel. Technologies: Microsoft Excel, Life Business.

07/2008 — 09/2010, Technical director at Ltd Crane Service Build. Responsibilities:

● Development, testing and installation of the module for overload prevention for industrial heavy lifting equipment.

● Software (Firmware) development of micro-controllers.

● For ARM, AVR, PIC - printed circuit design.

Technologies: C++, Assembler, P-CAD, SPECCTRA.

Education and Certificates

1997 — 2002, Physics M.S. (semiconductor physics), Odessa Mechnikov National University.

2002 — 2005, Physics (semiconductor physics), postgraduate school, Odessa Mechnikov National University.

2005 — 2008, Economist M.S. (enterprise economy), Odessa National of economics University

2014, ITBursa – Courses of « JavaScript»

2015, BananaLeague – Courses of « Junior Project Manager»

2022 — present, Granite Peaks learning Center SLC, Utah, English as Second Language

All skills

Fluent in ukrainian and russian, works well with other, ability to act on problems References

Andrey Tobak, Team Lead, Nu Research and development, ad11sa@r.postjobfree.com

Pavel Katasonov, PMP, Grid Dynamics, ad11sa@r.postjobfree.com

Sergey, Team Lead, Valkyrie - Comodo, ad11sa@r.postjobfree.com

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