Denys

DENYS STARCHENKO
Software engineer
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PROFESSIONAL SUMMARY

Experienced Software Engineer with over 17 years of experience in developing enterprise applications based on 2-tier and 3-tier architectures. Expert in database design, writing and optimizing complex queries, stored procedures, functions, optimizing algorithms at the database level, and creating custom migration mechanisms. I have a broad development stack: from client-side desktop applications (Delphi) to full-featured web solutions (PHP, JavaScript, HTML, CSS). I have successful experience leading a cross-functional team of developers, business analysts, and testers.

TOOLS & TECHNOLOGIES
Programming languages: Java, Delphi, php, C++, JavaScript, SQL, PL/SQL, HTML/CSS
Databases: Oracle, PostgreSQL, MS SQL Server, MySQL
Tools & Infrastructure: Apache Tomcat, Maven, Git, Jira, Confluence.

PROFESSIONAL EXPERIENCE

Diasoft
Head of Property Insurance software development Remote, 08/2018 – 02/2022
Key achievements:
• Turned around an unprofitable Property & Casualty (P&C) software development business unit to profitability within 6 months; eliminated maintenance SLA penalties, stabilized support KPIs above the 700-point target, and scaled the volume of delivered client requirements.
• Reduced software defects by over 10x and transitioned the team from chronic SLA breaches to predictable, penalty-free delivery. Achieved this by establishing clear code ownership, introducing test automation, and decoupling Tier 1 support.
• Built and led an 8-member cross-functional team of developers, business analysts, and QA engineers. Overhauled development workflows, established code quality ownership, and optimized planning and client engagement processes. Which led to a significant reduction in errors and an increase in the volume of fulfilled client requirements by 29%.
• Maintained 100% team retention during a critical project workload deficit by building a product improvement backlog, initiating new client solutions, and cross-training the team on adjacent insurance domains.
• Transformed client engagement from an opaque, conflict-driven process into a structured, manageable framework; involved the client in backlog prioritization, introduced data-backed estimation, and ensured predictable delivery timelines.
• Led the end-to-end migration of an enterprise product from Oracle to PostgreSQL, covering database schema, server layer, reference data migration, and rewriting DB packages. As a result, the product successfully achieved official state registration.

Chief Software Engineer 03/2015 – 08/2018
• Engineered a custom multi-threaded migration engine from scratch to successfully transfer a high-volume dataset of complex life insurance contracts where standard Oracle tools failed. This solution enabled a successful test migration, including complex multi-year corporate contracts involving thousands of insured persons, preserved data integrity, and fulfilled a critical technical prerequisite to secure a major enterprise contract.
• Accelerated the processing of large group life insurance contracts by over 10x; identified a systemic performance bottleneck, fully rewrote the risk calculation algorithm for database-level execution, and implemented parallel processing. A critical performance issue was resolved, allowing the software implementation phase to be completed.

OSSystem Chornomorsk, Ukraine Software Engineer 09/2012 – 10/2014
• Development of custom software modifications on the Master Enterprise Seven platform. This is ORM - system that uses Oracle or MS SQL Server DB for storing information. It is using Object Oriented Delphi Script for application development and Master SQL (SQL like language) for data manipulation. This system is a base for many solutions in Insurance business. 2 large projects were successfully completed.
• Support and addition of new functionality to the software used in the Chornomorsk commercial port.

Red Media Group
Software Engineer Remote, 02/2011 – 06/2012
• Support and development of the RM Production software. This CRM system monitors and manages most of the company's business processes, including TV program production, purchasing and selling video and audio content, managing content licenses, translating content into other languages, editing content, managing partner agreements, and more.
• Developed a module for integrating RM Production with WinTV (software for creating a television broadcast grid), which significantly simplified the process and reduced the user's labor costs by 2.5 times.

Illichivsk Oil and Fat Plant Chornomorsk, Ukraine
Software Engineer 01/2009 – 11/2010
• Developed a software model for each of the 11 production lines. The main purpose of this model is to forecast the consumption of non-core production resources (such as electricity, hot and cold water, nitrogen, etc.). What made it possible to optimize the costs of electricity production by 20%.

JSC "Kharkivgaz" Izyum, Ukraine
Software Engineer 02/2005 – 01/2008
• Several projects for solution one global task for company and their branch offices. It is subscribers accounting, printing subscriber receipt, receiving all kinds of reports and etc. I had developed more improvements and further development of existing software for new capabilities. This led to a 2-fold increase in employee productivity

State Enterprise "Izyum Instrument-Making Plant" Izyum, Ukraine
Software Engineer 10/2003 – 02/2005
• Developed project «Not Finished Production Estimation». This project shows the estimation of not finished production in real-time or on set date. The user can find one or several details of products or completed product, and in real time looks where they are right now. (on what workshop, storage and etc.). Obtaining data necessary for production planning and analysis has been reduced by 3 times.

EDUCATION
Chuvash State University Cheboksary, Chuvash Republic
Master degree in Software Engineering 09/1998 – 06/2003

V. N. Karazin Kharkiv National University Kharkiv, Ukraine
Master degree in Psychology 09/2005 – 06/2008

LANGUAGES

English — B1 (Intermediate) Russian - Advanced Ukrainian — Native