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Valerii Makieienko

@valeriimakieienko

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Experienced software engineer specializing in distributed systems and big data.

Zimbabwe

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What I'm looking for

I am looking for a challenging role in a dynamic company that values innovation and offers opportunities for professional growth.

With over 18 years of experience as a software engineer, I have honed my skills in creating distributed software and big data solutions using modern technologies such as Java, C++, and Python. My expertise lies in data structures, algorithms design, and object-oriented design, enabling me to tackle complex challenges in high-volume systems and microservices.

Throughout my career, I have successfully led projects at renowned companies like Google and PDF-Parser, where I implemented innovative solutions that improved performance and efficiency. For instance, at Google, I reduced inference calls by 70% and enhanced data processing pipelines, earning recognition for my contributions. I thrive in collaborative environments and enjoy working with diverse teams to deliver high-quality software.

Experience

Work history, roles, and key accomplishments

Current

Fullstack Software Engineer

Current

PDF-Parser

Jun 2024 - Present (1 year)

Implemented data extraction from PDF documents and created a UI for data review and editing. Developed data export functionality in Excel format.

Java 21+SQL JOOQ Apache PDFBox Apache POI GCP

Software Engineer

Google

Apr 2022 - Jun 2024 (2 years 2 months)

Decreased inference calls by 70% using a memoization layer for search indexing and improved corpus freshness by 96% with an ETL Flume pipeline. Reduced memory footprint of signals by 87% through Flume pipelines and analyzed eval results using Python, Pandas, and Ranklab.

Flumes Python 3 Java 21+SQL Spanner Pandas Ranklab Servomatic

Senior Java Engineer

Jelurida Swiss SA

Jun 2018 - Mar 2022 (3 years 9 months)

Implemented asset-specific properties and added a sub-chain specific permissioning model for the Ardor Blockchain Platform. Contributed to a fast state snapshot save/restore feature based on hash tries.

Java 8 SQL JOOQ Docker Concurrency Data Structures Security

Software Engineer

IPsoft Inc.

Jun 2016 - May 2018 (1 year 11 months)

Implemented WSMan and Powershell over WSMan connections support and changed equipment discovery to support multiple connections per host. Developed client-specific ticket handling flow selection and an ad-hoc logs processing pipeline with Apache Spark.

Java 8 Python 3 Golang Spring Boot Microservices RabbitMQ Apache Spark Kubernetes Docker Kibana

Software Engineer

comScore

Sep 2010 - May 2016 (5 years 8 months)

Increased maximum reporting period by 30% by implementing alternative data storage and read approaches. Designed and implemented a new visitor identification mechanism, unblocking onboarding for a major customer.

Hibernate JAXB Ant+Ivy SQL MySQL Tomcat YourKit VisualVM

Software Engineer

EPAM Systems

Mar 2009 - Aug 2010 (1 year 5 months)

Suggested and implemented a multithreading architecture, increasing content delivery service speed by up to 70%. Developed a new client-server application for media content redistribution based on REST and SOAP web-services.

Java 6 Spring Framework Hibernate SQL MySQL Tomcat

Software Engineer

Luxoft

Nov 2007 - Mar 2009 (1 year 4 months)

Accomplished integration with upstream systems for a real-time billing and reporting system. Developed monitoring utilities with a rich web interface, crucial for acceptance testing.

Java 6 Spring Framework Hibernate JMS GWT Ant SQL Oracle Tomcat

Java Software Developer

UPT Ltd.

Apr 2007 - Nov 2007 (7 months)

Implemented a mini-framework to smooth portlet-JSF integration. Developed several portlets for client registration, billing information retrieval, and settings changes.

Portlet Spring Framework JSF Portlets Maven

Software Engineer

Ciklum

Apr 2006 - Apr 2007 (1 year)

Implemented a parameter selection wizard for a company comparison feature and created integration tests for a new calculation engine. Modified the calculation engine, reducing data processing time by six times and drastically improving precision.