I led the transformation of the existing language services platform into a human data annotation platform tailored for AI applications. Spearheading critical initiatives to streamline business processes and enhance operational efficiency. I leveraged my leadership and technical acumen to navigate the 2023 language services industry crisis, support the CEO in pivoting the company's strategic direction, and position it successfully within a new niche market despite resource constraints.Key Achievements: - Strategic Innovation: Conceptualized and implemented a groundbreaking technology solution, realigning the company's focus to a lucrative new market. Achieved a dramatic reduction in project onboarding time from three weeks to under 24 hours. - Scalability Enhancement: Architected a scalable solution that increased the system's capacity to manage a 50-fold workload, significantly boosting operational efficiency. - Operational Efficiency: Optimized team structure, reducing the engineering workforce by 50% while maintaining productivity and quality.Responsibilities: - Strategic Leadership: Guided cross-functional teams in the ideation and execution of cutting-edge technology solutions aligned with organizational objectives. - Team Management: Managed a streamlined engineering team, fostering a high-performance culture and supporting professional growth. - Performance Optimization: Led comprehensive performance evaluations, significantly improving system scalability and efficiency. - Stakeholder Engagement: Collaborated closely with stakeholders to translate business needs into technical strategies, promoting a collaborative and innovative work environment. - Innovation & Execution: Directed end-to-end development processes, ensuring projects were delivered on time and within budget constraints.TechStack: Python, Node.js, Typescript, React, MySQL, PostgreSQL, Qdrant, AWS, DataDog, Langfuse, Langchain, Kubernetes.

At Ntrinsec, we are transforming the crypto industry by shortening cryptographic periods and eliminating the misuse of cryptographic materials (patent pending). Starting as a Senior Back-End Engineer, I quickly became a pivotal team member and key contributor, embracing various roles typical in early-stage startups.Key Achievements: - 10x Accelerated Service Adoption: Reduced third-party service support implementation time from 300-500 man-hours to under 40 hours man-hours. - 3x Enhanced Feature Delivery Speed: a 3x reduction in ETA for new features, ensuring faster delivery. - Optimized R&D Costs: Achieved 1.5 x cost reduction while increasing team maturity and seniority by 3x, leading to higher productivity and expertise. - Patent Application: Co-authored the 'Cryptographic Material Inventory System' patent application alongside the CEO and VP of Engineering.Responsibilities: - Architectural Design and Strategy: Develop and maintain the overall architecture strategy, ensuring alignment with business objectives and industry best practices. - Technical Leadership: Provide technical guidance and mentorship, fostering a culture of innovation and continuous improvement within the engineering teams. - Performance Optimization: Continuously analyze and optimize system performance, scalability, and reliability. - Product Roadmap Development: Collaborated with stakeholders to determine the product roadmap, aligning technical strategies with business objectives. - Critical Code Implementation: implementing the most critical parts and ensuring high-quality and efficient development practices. - Team building: Recruited and developed a strong engineering team, enhancing technical capabilities and fostering a collaborative cultureTechStack: Golang, Node.Js, Typescript, C, Python, AWS, GCP, Azure, Docker, React, MySQL, SteamPipe, LocalStack, HashiCorp Consul, HashiCorp Vault, Kubernetes, Auth0.

Fully engaged with team members to achieve the highest levels of productivity: • Developing core concepts • Performing code reviews • Creating architectural designs • Building development processes • Writing critical parts of codeJava: Guice, Testcontainers, iBATIS, Hibernate, GlassFish, Apache GuacamoleC++: gcc, ffmpeg, freeRDPJS: NodeJs, Angular 1, NestJSPython: OpenCVCloud: AWS, Azure, GCPDB: MariaDb, Cassandra, PostgreSQLOthers: Apache Guacamole, Docker, Jira, Boot Camp, OpenSIPS

At Intelisecure, I led the engineering workstream, overseeing the development of innovative custom Privileged Access Management (PAM) solutions. I wore multiple hats in this role, including Solution Architect, Team Lead, Lead Engineer, and part-time DBA.Key achievements: - Leadership/Ownership Transition: Took ownership of the entire engineering team's work, replacing a team of 10 engineers within a month. Assumed full responsibility for the solution's codebase and architecture. - Efficiency Improvement: Halved issue resolution time and tripled the simplicity of the development environment - 2x Streamlined Onboarding: Simplified the onboarding process for new applications. - PCI Compliance: Implemented TLS 1.3 support, a significant technical achievement to pass the PCI Compliance audit.Responsibilities: - Strategic Leadership: Directed the engineering team, providing vision and direction for the development of secure and efficient solutions. - Technical Oversight: Managed the architecture and codebase, ensuring alignment with best practices and company objectives. - Cross-functional Collaboration: Worked closely with stakeholders to deliver high-quality solutions that meet business needs. - Innovation & Execution: driving the implementation of new technologies and methodologies to enhance system capabilities.Tech stack: Java, C, JavaScript, Python, Lua, Cassandra, MySQL, Elastic Search, Logstash, Kibana, Kafka, OpenResty, Apache Guacamole, REST and SOAP web services, SalesForce, RemedyForce APIs, My iBatis, Google Guice, Microsoft Active Directory / LDAP.Overview: Overall system architecture used Apache Guacamole; OpenResty / Lua scripts; MySQL; Java / J2EE backend exposing JSON-based RESTful web services interacting with Angular-JS, JavaScript, HTML, CSS front-end Web-UI; SalesForce / RemedyForce; Kafka; Python; Docker; VMWare; ELK Stack (Elasticsearch, Logstash, Kibana).

Effectively supported various company initiatives with a range of timelines: • Developing core concepts • Performing code reviews • Creating architectural designs • Building development processes • Managing several development teams

Author of Riak Apache Spark Connector• 2x performance improvement: tracked down a bottleneck in Erlang - Java interop, proposed and implemented changes on the Java side.• Development of Riak Spark Connector• maintaining Riak Java Client• Managing distributed development team• pre-sales backing PoCsLanguages: Java, Scala, a very little ErlangCloud: IBM BlueMix, AWS

• Led and managed several projects involving various languages and technologies.• Had to master lots of new technologies in a tight timeline.• Managed distributed teams, created architecture, and implemented core parts.OS: Windows, LinuxJava: jBPM 5(.4), Apache Shiro, AspectJ, JAXB, Jackson, JSF, JSP, JMS, Spring, Hibernate, JPA, JUnit, Mockito, PowerMock, Bitronix, Tomcat, WebLogic, Jetty, velocity, Agile PLM API, Apache Camel, Apache CXF, JAX-RS, Swagger, JerseyDB: Oracle, H2, PL/SQL, OrientDB, CassandraOther: Pentaho Data Integration, Isomorphic Smart Client, JavaScript, Firebug, html, css, svn, bazaar, git, bamboo, Jenkins, JIRA

US customer PaaS system investigation, support, re-engineering and improvement. Main goal of team I'm member of is understand legacy system architecture, fix urgent and high priority issues to make existing customer happy and re-engineering system to make it clear, flexible, salable and easy to maintainOS: WindowsJava: maven, XStream, JAXB, Javascript, Spring, Hibernate, Apache CXF, Apache Http Client, Apache Lucene, Apache TomcatDB:MS SQL Server, OracleOther: JavaScript, html, CSS, JSON, FireBug, redmine, subversion, mercurial

Development of large telecom project, work on Media Gateways and Call Agents, integration with other equipment and systems. Porting linux pci device driver from 32 bit 2.6.18 kernel with zaptel to the 2.6.36 64 bit with dahdi. OS: Linux, Windows, SolarisJava: java core, maven, XStream, JAXB, junit, mockito, powermock, JMS, EJB, RMI, EclipseLink, jetty, FreeMarker, Apache Mina, aspectJ, Apache log4j, SLF4JC++: ms vc, gcc; boost (thread, asio, system, smart pointers), autotoolsDB: H2, BDB, OracleOther: Redmine, Nexus, Jenkins, bazaar, Visual Paradigm for UML

Development of Sales Management System, E-Commerce web solution, Enterprise Accounting System. Implemented backoffice and web site. OS: LinuxJava: Spring (Web Services, Security, JMX, RCP, Declarative transaction), SwingX, EclipseLink (JPA), SmartGWT EE, GlassFish, Apache Wicket, Dojo, google-gson, Dozer, log4j, JavaMailDB: mySQL, BDB, mongodbOther: JavaScript, html, CSS, JSON, FireBug, Jira, Subversion, Google Analytics, Apache Chainsaw

Universum - internal product, business application platformCore reengineering, development and support, GUI unification.OS: LinuxJava: Java SE, Swing/SwingX, JDBC, JavassistDB: OracleOther: Oracle SQL Developer, dotProject, Mantis, Subversion

Alarms, CCTV And Guard Tour Monitoring by MilleniumDoor And Elevator Access Control by MilleniumPresidio - Access Control System by SynergisticsGUI, back-end development and support (windows services, modules for communication with hardware and front-end)OS: WindowsC/C++ MS Visual Studio, MFC, WIN API, STL, XML, Windows Services, ActiveX, MSMQDB: MS SQL, Other: Microsoft Visual SourceSafe, Rational Purify, WWW Support

Back-end web server for Web Counter Service( request processing, manage counter statistics, render & return counter image ) with 99.9% guarantee uptime OS: Linux, FreeBSDC++: gcc, bison, ACE, GD, autotoolsDB: MySQLOther: Subversion

Manage the development of a Control/Management System for Gas StationsImplemented most critical parts: communication module for fuel dispenser(IFSF protocol over LON network), did some private changes in the RHTVision (Console UI) to support multithreaded event processing, and some private bug fixes in IBPP (Firebird client).OS: Linux, FreeBSD, WindowsC/C++: gcc, ACE, autotools, RHTVision, IBPPOther language: PostScriptDB: FirebirdOther: IB Expert, Rational Rose, Rational ClearCase.

FossDoc - Digital Document Management Systemback-end development and support, Implements: - client-server protocol reengineering; - Document history storage subsystem; - FossDoc server installer - Demostration CDOS: WindowsC++: MSVC++, STLPort, WIN APIOther: InstallShield, CVS

Aircraft Control Center for Air ForceImplements: - software part of radiolocation data extraction subsystem which includes: Linux kernel module for cusom pci device, control/monitoring utilites, daemons for retransmission extracted data over network; - simple OCI wrapper; - whole system start/stop/diagnostics procedures (as oracle stored procedures with Advanced Queuing)OS: LinuxC/C++: gcc, Gtk, WxWidgets, OCI, BSD sockets, SysV message queues, autotoolsOther language: PL/SQL, Bash, PerlDB: OracleOther: ErWin, SQL*Plus, gdb

Various projects: Windows, Unix, Delphi, C++ Builder, MS VC++, PHP.

Information system to manage miscellaneous data.Windows, Delphi 1-3, custom VCL component set, Paradox DB.