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Work Background
European CommissionEnterprise Architect | Solution Architect | Independent contractor
Apr. 2023Brussels, Brussels Region, Belgium
CognizoneSolution Architect | Semantic Architect | Technical Lead | Independent contractor
Sep. 2019 - Apr. 2023Brussels, Brussels Region, BelgiumCognizone is a leading software development company specializing in Semantic Technologies and Linked Open Data. Maintainer of ESCO multilingual classification and data provider for Europass tools. - Senior technical decision-maker, making significant design and technical decisions for software projects handling large amounts of data.
- Tackled design problems, tore down products, oversaw and executed their rebuilding to simplify architecture and improve maintenance. - Reduced technical debts, maximized performance and efficiency, optimized quality, and pioneered scaling solutions.
- Founded CI/CD processes, centralized logging with the open-source ELK stack, and distributed tracing for multiple interdependent products/applications/services.
- Formulated technical specifications.
- Developed and performance-optimized graphs and other algorithms to handle big datasets.
- Helped the organization to win the Trends Gazelles 2021 award for the fastest-growing company in the Flemish Brabant province.
- Orchestrated and designed for a diverse portfolio of products: - 27 languages - 35 repositories - 15 applications with user interfaces - 14 supporting services and APIs - 4 AI services based on python - 3 PHP-based applications - 22 Java applications and services, using Spring Boot microservices and Angular SPAs - several helper scripts, own libraries, delivery plugins - relational databases, graph databases, and triplestores - Solr and clustered Elasticsearch nodes - several batch processing
Telesero CloudSenior Consultant
Apr. 2019 - Jul. 2019Marbella Area, SpainTelesero is a start-up building Industry-Leading Call Center Software.
Designed PBX phone system, industry-leading VoIP technology.
SkillingSoftware Architect | Independent contractor
May. 2018 - Mar. 2019Marbella Area, SpainSkilling is a FinTech start-up company building a different CFD and FX trading platform. It is a simple and powerful trading platform designed by expert traders to satisfy the needs of beginner and advanced traders. - Orchestrated and integrated Spotware cTrader Ecosystem into the microservices architecture of our trading platform, built on Spring Boot-based services and with some NodeJS services.
- Redesigned communication among microservices to use gRPC (google Remote Procedure Call) with exchanging data defined by protobuf (Google Protocol buffer) instead of REST, initiated new data structures.
- Established an event-driven architecture to react to trading events promptly and maximize near real-time processing.
- Developed and designed core shared services used by all development teams and other services.
- Services used Docker containers on AWS, interacting through a combination of REST, gRPC, RabbitMQ, and Redis.
- Used enterprise integration patterns with the help of Spring Integration.
- Automated processes with Docker, AWS, Jenkins, Gradle, GitHub, Cucumber, Spock, Geb, and Jacoco.
European CommissionSoftware Architect | Independent contractor
Jul. 2014 - May. 2018Brussels Area, Belgium- Made architectural decisions and wrote specs as part of an architecture group.
- Designed processes and data structures.
- With the help of design patterns, implemented new features to Sysper2, the European Commission’s Human Resource Management information system.
- Worked initially with a mixture of legacy EJB 2/3, Struts- and Spring-based architecture, consisting of web applications interacting with a business services subsystem via SOAP.
- Utilized Oracle databases, making extensive use of PL/SQL.
- Heavy use of jQuery and lighter use of AngularJS.
Providing (i)Technical Leadership Ltd.Chief Technology Officer
May. 2014HungaryPTL serves businesses that face internal or external demands outside of their area of expertise or their focus. We aid companies struggling with deciding on employing IT professionals for a particular task or outsourcing temporary duties. PTL supports Architecture Solutions, Technical Design, Software Architecture, Cloud Computing (AWS, Azure, GCP, OCI), exotic languages/tools, building new teams for a given goal, and interviewing or hiring best fit members to an existing group. PTL provides coaching and mentoring.
LOXONSenior Software Architect
Jul. 2013 - Jul. 2014Budapest- Designed and built a Lending, Risk, and Collateral management system based on a Java EE platform.
- After only a few months of introduction at the company, I was honored to be the only technical support onsite (Moscow) for our first go-live of a big project spanned over three years of development.
Pharazon ABSenior Consultant
Jan. 2013 - Jul. 2013Helsinki, Finland- As an architect, I was responsible for prototyping an application using the newly introduced libjingle (later WebRTC). As early adopters, we gave feedback to the WebRTC development team and worked closely with them.
- Designed API architecture and implemented Symfony2 REST services for a remote website UI.
- Customized osTicket ticketing system.
JAMK University of Applied SciencesSenior Consultant
Aug. 2012 - Jan. 2013Jyväskylä, FinlandI worked on the planning and implementation of an open-source project named FreeNest. It was an application and software development life-cycle management tool. - Orchestrated various open-source projects on top of OpenStack architecture.
- FreeNest runs on the OpenStack cloud, built on rejuvenated, thrown-out PCs. (This gave a deep understanding of Cloud Computing)
Survey Sampling InternationalSenior Enterprise Java Developer
Dec. 2011 - Aug. 2012Debrecen, HungaryI supplied architectural design and development expertise on the market research software and panels to enhance project quality.
Central Unit of Hungarian National PoliceSenior Java Developer, Database Architect
Oct. 2010 - Dec. 2011Nyíregyháza, HungaryMy primary goal was to deliver an information retrieval system, identifying and analyzing performance bottlenecks and rectifying them. Our team collated information from the mass of official documents created by the Hungarian police.
My secondary goal was to maintain, evolve, architect, and administrate the extensive distributed database of the integrated case management system.
National InstrumentsPL/SQL Developer
Jan. 2010 - Oct. 2010Debrecen, Hungary- Developed different solutions on almost all aspects of the Oracle ERP ecosystem.
- Designed and built a high-volume transactional system.
- Helped data loading to our OLAP system.
Concept Websites LtdSenior PHP Consultant
Apr. 2009 - Jan. 2010Budapest, HungaryI gave professional advice, consultancy, and technical development of websites and web-related concepts.
ConnexisEnterprise Java Developer
Mar. 2008 - Apr. 2009Debrecen, HungaryI was involved in developing the first implementation of NGTP (Next-Generation Telematics Protocol), a critical, near real-time, and distributed system.
CezeConsultant Team Lead
Jul. 2007 - Mar. 2008Debrecen, HungaryI coordinated and provided expertise in designing and developing a management software project for small businesses.
UniWeb PlusLead PHP Developer
Nov. 2006 - Jun. 2007Debrecen, HungaryI was responsible for leading a group of three developers, communicating with clients, verifying business requirements, and helping with implementation.
ExcelsiorWebJunior PHP Consultant
Jun. 2004 - Jul. 2006Debrecen, Hungary- Worked on designing and implementing medium to large software systems and websites.
- Developed new functionalities, both on the backend and front end.
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