Daniel Mroczka Email & Phone Number

Wien, Wien, At

- Providing data for George app.- Transaction team member

Waltham, Ma, Us

Contributing to the next generation of Dynatrace Storage Engine - Grail™- contributed to the development of a scalable and distributed data ingestion system.- part of the Engineering Productivity Guild, focusing on operations and optimizations for the first production release.- led efforts to introduce self-monitoring systems, build dashboards, and foster collaboration across teams.Tech stack:Java 11/17, Spring Boot, Gradle, Kubernetes, Helm, Docker, Kafka, Dynatrace, minikube, kind

London, Gb

Implemented several prototype applications based on the core Blockchain platform developed by iov42, ready for demonstration to potential investors:Carbon Credit Ecosystem (CCE): Secure issuance of carbon credits with end-to-end transparency to prevent fraud.Know Your Customer (KYC): Simplified implementation for Banking and Telecommunication industries.Developed and maintained numerous internal microservices to support common business requirements, focusing primarily on the backend with limited DevOps responsibilities.Mostly backend area + limited devops responsibilities.Tech stack: Java 11, Spring Boot, Spring Rest, Spring Data, Spring Cloud, Google Cloud, Microservices, PostgreSQL, Gradle, Docker, Consul, Vault, Swagger, OpenAPI, Firebase, Github, CircleCI

New York, Us

Team member of Intelligent Automation Stream responsible for development of Event Engine part of Work Automation and Continuous Delivery Automation products of Automic GmbH (nowadays acquired by Broadcom Inc.)• implementing new features in Rule Engine project as Intelligence Automation team member• maintenance Automation Web Interface (AWI) projectTech stack: Java 8, Spring, Maven, Apache Kafka, Apache Flink, Vaadin, Docker

Vienna, Vienna, At

• Implemented new features in the IPS project for KSV1870: • Backend: Java 7, Java EE6, Glassfish • Frontend: AngularJS, Marklogic• Developed a booking application for Red Bull Studio from scratch: • Backend: Java 8, Spring Boot, Spring Data, Spring REST, Spring Data Rest• Implemented new features in the e-zoll (e-custom) application for Bundesrechenzentrum (BRZ)Tech stack: Java 8, Spring Boot, Angular.js, Marklogic

Developed bookkeeping software JAbacus:Engaged in the full development life cycle, including:• Analysis and investigation• Implementing new features• Bug fixing• Application deployment

Dublin, Ie

OpenJaw Technologies delivers high performance distribution solutions to leading travel companies. Since then we have transformed into a technology partner with the expertise to help our airline, OTA, loyalty program and hotel group customers excel at retailing travel products on line.My tasks:• Implementing Event Booking Mobile Web Application (Proof of Concept)• Developing new features for Platform team (core functionalities) and S7 Airline

Amsterdam, Nh, Nl

Anachron is an ASP (Application Service Provide) and EBPP (Electronic Bill Payment and Presenting) business that delivers online invoice/bill data to multiple channels and in multiple languages and currencies as a B2B and B2C solution scalable to millions of users.My tasks:• developing applications for e-Invoicing• migration data from Oracle to Cassandra• bugfixing and maintenance existing applications

Southlake, Texas, Us

Sabre, Inc. (TSG) is an American privately held travel technology company, encompassing four business units: Sabre Airlines Solutions, Sabre Travel Network, Sabre Hospitality Solutions and Travelocity. Sabre provides software to travel agencies, corporations, travelers, airlines, hotels, car, rail, cruise and tour operator companies. Divisions within each of these groups also service the business and corporate travel market.My tasks:• designing and implementing the core part of Traveler Profile Management (Sabre Profiles) application from the scratch• designing and implementing the core part of Roles Management (Users & Roles) application from the scratch• designing and implementing Data Model• implementing communication with Message-Oriented Middleware and Web Services• controlling the quality of code• mentoring other developers

The company was initiated from prof. Grahl-Madsen research carried out at the Norwegian University of Science and Technology and later at Bergen University College. The main goal was to develop a application written in Java that could perform an automated FMECA based upon Manufacturing System Theory and Markov process in order to establish critically. Several test cases was successfully carried out for Norwegian companies and the core code was completed. Management didn't succeed in getting off the ground and today the company is dormant.• designing and developing expert system used for failure detection in offshore platform assigned for industry (Statoil and other Norwegian companies). • organizing a new Norwegian startup, designing, implementing algorithms, developing software, project management, • demonstrating the product to the investors. • typical A-Z tasks :)

Brussels, Brussels Region, Be

• COBRA (Core Banking Retail Application) – designing and developing banking system for retail banking based on Globus T24 (Temenos) • Application Development Group – developing existing banking system

J2SE/J2EE/Oracle developer • Stock market• Artificial Intelligence (e.g. Artificial Neural Networks, Data Mining, Genetic Algorithms),• Data Warehousecurrently suspended but cooperation still possible

Warszawa, Pl

Developing computer system (McSpalWin) for petrol station PKN ORLEN S.A. (major Polish oil refinery and petrol retailer) Position: programmerInvoled in folowing areas:• sale module• customers• payments (cash and payment card)• fleet cards• loyalities (VITAY)

CRM Berberis Role: programmer/project manager · IRIS – Reservation ticket system for Jordan (International Travel Agency) Role: bugfixing, implementing new functionalitiesPlugin for the spreadsheet Excel for cost calculation in construction jobs Role: Agreeing upon with client, designer, database project, programmerAdministration system for telecommunications customers (Netia)Role: programmer

Msc, Computer Science

Bsc, Electronics And Telecommunications

Postgraduate, Financial Markets Analysis And Investment Advice

Technical College, Computer Systems