Experience

aXedras

• Switzerland
• IT Services and IT Consulting
• 1 - 100 Employee

• Software Engineer

  • Jan 2022 - Present

  kotlin, R3 Corda DLT kotlin, R3 Corda DLT



Freelance, self-employed

• Budapest

• Software Engineer

  • 2018 - Jan 2022

  Technical Head Renewal of the Customer Web Portal of the Hungarian National Tax And Customs Administration (NAV Ügyfélportál Megújítása) 5 developer teams, approx. 30 devs alltogether chief developer (decision-making responsibility in all technical matters), leading a dev team of 7 fully remote (saw team members face-to-face only once in a team building event) microservice architecure (60+ microservices) angular, spring-boot, oracle, kubernetes, Oracle Access Manager OAUTH2, JWT, KAÜ, SSE (Server Sent Events) HKIR- Unified ticketing system for national railways and bus public transport (T-Systems, fully remote): Java 8, 11, Quarkus REST microservices + Hibernate, Kubernetes deployment National Immediate Payment System (IG3, T-Systems): bank transfer within 5 seconds, a message based integration between banks (BudapestBank, MKB, Takarék Group) and ACI Shadow Balance and Payment Hub systems. Java 8 Spring Integration backend system, SOAP, JMS with IBM MQ, developer lead Resource Portal (T-Lancer for T-Systems): an internal bidding system - employees can bid for some small outstanding tasks, the lowest bidder wins and gets paid for the task. Angular 5 + Java 8 Spring microservices + Hibernate backend, Web Socket callbacks National Construction Project Administration - a large-scale project, lots of companies involved, a complex web application, angular 5, java 8 spring-boot + hibernate backend, REST, Postgres db - lead developer, coach Show less



swissQuant

• Switzerland
• Financial Services
• 1 - 100 Employee

• Software Engineer

  • Nov 2015 - 2017

  real-time portfolio optimization tools for banks, in java roles: tech lead of the adaptation layer for the Zuger Kantonalbank & taking part of development of impaQt-plus itself the product called impaQt-plus has been sold for multiple banks with some additional, specific features and adjustments for each. Our team of 3 was responsible for delivering the adaptation layer of impaQt-plus for the Zuger KB. working directly with customers, in German language some of the backend technologies used: java 8 with Guice, activeMQ, hibernate, oracle db, gurobi optimizer, Finnova core banking system Show less



Difilton-Arc Kft

• Budapest

• Software Engineer

  • Nov 2013 - Oct 2015

  research & development of a novel ultrasound-based scan technology applied in medicine for scanning human tissues. Implemented a matlab application driving a 3d positioning system and processing time series data acquired form Tektronix oscilloscope and lecoeur's us-key device . research & development of a novel ultrasound-based scan technology applied in medicine for scanning human tissues. Implemented a matlab application driving a 3d positioning system and processing time series data acquired form Tektronix oscilloscope and lecoeur's us-key device .



IMC Trading

• Netherlands
• Financial Services
• 700 & Above Employee

• Software Engineer

  • Jan 2011 - Oct 2013

  - fast paced, very dynamic environment - developed latency critical algorithms in the options trading strategy execution layer in Java running on debian linux - implemented the trader's side of exchange connectivity protocols in Java for the Korean Exchange (Krx), Nasdaq (Itch/Ouch), Eurex - developer team applied agile methodologies upon jira, crucible, fisheye, git; developer team implemented CICD using maven, teamcity, nexus - fast paced, very dynamic environment - developed latency critical algorithms in the options trading strategy execution layer in Java running on debian linux - implemented the trader's side of exchange connectivity protocols in Java for the Korean Exchange (Krx), Nasdaq (Itch/Ouch), Eurex - developer team applied agile methodologies upon jira, crucible, fisheye, git; developer team implemented CICD using maven, teamcity, nexus



GusGus Capital Kft.

• Budapest, Hungary

• quantitative researcher (contract)

  • 2010 - 2010

  GusGus is a proprietary quant trading firm I developed mathematical models of correlations between NASDAQ stocks and checked them on high frequency data GusGus is a proprietary quant trading firm I developed mathematical models of correlations between NASDAQ stocks and checked them on high frequency data



SZTAKI (Institute for Computer Science and Control)

• Hungary
• Research Services
• 100 - 200 Employee

• Research Fellow

  • 2006 - 2010

  Research at the Stochastic Systems Research Group • fitting a class of Lévy processes on market data, a project for Morgan Stanley • Insider trading detection: developed models and algorithms to detect anomalies in order flow • Reconstruction of sound from a phonograph cylinder: developed methods to estimate groove depth in a vax cylinder from cross-sectional picture records Research at the Stochastic Systems Research Group • fitting a class of Lévy processes on market data, a project for Morgan Stanley • Insider trading detection: developed models and algorithms to detect anomalies in order flow • Reconstruction of sound from a phonograph cylinder: developed methods to estimate groove depth in a vax cylinder from cross-sectional picture records



GABO mbh. Co. Kg

• Munich Area, Germany

• Senior Software Engineer

  • 2001 - 2006

  • Development of mission-critical applications for real-time storing and analysis of large amounts of traffic data in wide area telecommunication networks; • development of high-available, highly automatic server-side e-commerce applications; • member of executive advisory board • Development of mission-critical applications for real-time storing and analysis of large amounts of traffic data in wide area telecommunication networks; • development of high-available, highly automatic server-side e-commerce applications; • member of executive advisory board



Brokat Technologies Ag.

• Leipzig Area, Germany

• Software Engineer

  • 1999 - 2001

  development of internet and mobile payment systems in C++; team leader development of internet and mobile payment systems in C++; team leader



Scadasys Kft.

• Budapest, Hungary

• Software Engineer

  • 1998 - 1999

  - developing applications for the company's proprietary SCADA system in C - development of a Global Positioning System driver used to time-synchronize systems controlling PLCs - developing applications for the company's proprietary SCADA system in C - development of a Global Positioning System driver used to time-synchronize systems controlling PLCs