Committer → PMC → PMC Chair, Apache Ignite- Apache Ignite Native Persistence: Direct IO plugin created.- Durable Memory page rotation with disk optimized.- Knowledge base: Wiki page series 'Under the hood’, GitHub description, mini-training for Apache Ignite- TeamCity Bot created and donated to the ASF: Bot notifies the community about test failures and protects master from new bugs.Committer & PPMC, Apache Training (incubating)- Apache Ignite introductory slides… Show more Committer → PMC → PMC Chair, Apache Ignite- Apache Ignite Native Persistence: Direct IO plugin created.- Durable Memory page rotation with disk optimized.- Knowledge base: Wiki page series 'Under the hood’, GitHub description, mini-training for Apache Ignite- TeamCity Bot created and donated to the ASF: Bot notifies the community about test failures and protects master from new bugs.Committer & PPMC, Apache Training (incubating)- Apache Ignite introductory slides contributed Show less

training.ru (May 2020-...)Trainer, Java Core course- running lectures, live coding, preparation, and validation of students' homework.(Nov 2020-...)- Conducting technical interviews for developersThomson Reuters (June 2020-Nov 2020)Performance optimization for batch document processing, x100 boost in throughput- Architecture review done with key stakeholders- Bottleneck microservices were redesigned for batch processing- MongoDB-based cache over… Show more training.ru (May 2020-...)Trainer, Java Core course- running lectures, live coding, preparation, and validation of students' homework.(Nov 2020-...)- Conducting technical interviews for developersThomson Reuters (June 2020-Nov 2020)Performance optimization for batch document processing, x100 boost in throughput- Architecture review done with key stakeholders- Bottleneck microservices were redesigned for batch processing- MongoDB-based cache over Oracle was added- Pure JDBC used instead of Hibernate- Solution design aligning with stakeholders, technical design for cache replication was developed- Full asynchronous replication Oracle<->Mongo implementedMOEX (Oct 2019-May 2020)Product: Marketplace (Spring Stack Microservices-based product) Module: Storage for product customers and sensitive information - Architecture review - Design for implementation of features - Architecture decisions reviewKnowledge transfer, reverse engineering of the domain model, extraction of bounded contexts Show less

- Developers and architects training; blogger; speaker on community events. Community Star Award for Q3 2018.- Technical and organizational support of enthusiasts (developers) in Apache Ignite community.- Mentoring developers for the company-partner.

Product: Host Card Emulation (HCE): Android application (2015 – 2017) - PayPass (MCBP) supported.- Admin Web UI created.- Data Grid independence added: Gigaspaces XAP IMDG / Apache Ignite- Existed prototype converted into a production-ready solution.Product: Payment Smart Cards, EMV Issuing (2008 – 2015) Tech lead & product owner: solution architecture, requirements analysis, aligning solution with customers, planning, security review.- Issuing card data… Show more Product: Host Card Emulation (HCE): Android application (2015 – 2017) - PayPass (MCBP) supported.- Admin Web UI created.- Data Grid independence added: Gigaspaces XAP IMDG / Apache Ignite- Existed prototype converted into a production-ready solution.Product: Payment Smart Cards, EMV Issuing (2008 – 2015) Tech lead & product owner: solution architecture, requirements analysis, aligning solution with customers, planning, security review.- Issuing card data preparation made parallel, 3x performance boost.- Automated tests code coverage 0 -> 60%, continuous integration set up- Number of production defects were 2 times reduced.- Legacy modules migrated C->Java, proprietary to open source- VISA PayWave, M/Chip Advance were supported. - Wiki knowledge base was created.- Smart Card Inspector (EMV card personalization) validation tool developed. Show less

SAP enterprise portal tech leader: mentoring, POCs for features, code review.- Java class loading mechanism for SAP enterprise portal extension developed.- Service for RSS news migration into SAP portal was developed.

Product: Medical information system for hospitals and laboratories. - Automated code-requirement traceability implemented.- Module javadocs improved, unit tests developed, performance bugs and memory leaks fixed.

- Digital signature & hash & encryption implemented using GOST (inc. algorithm modifications).

Product: Integrated vessel control & dynamic position system. - Build Server developed.- UI controls for the captain's dashboard development.