Nenad Tomasic - Contractor

Spreitenbach, Switzerland

Experience

Sep 2022 - Present

2 years 11 months

Zürich, Switzerland

Contractor

Swisscom

SAP Data Designer ETL, SQL Server, Docker for PharmaSuisse Data Warehouse Application (Application Manager and Developer)
SAP Business Objects, ABAP on SAP HANA for the Police of Canton Bern (Application Manager and Developer)
Avaloq Connectors to SAP BW for Banque Cantonale de Fribourg

Oct 2021 - Aug 2022

11 months

Zürich, Switzerland

Contractor

Swisscom

OpenShift, Grafana, Kafka, Splunk, MariaDB, Postgres, InfluxDB, Linux and OpenShift operations and maintenance for the Custodigit Trading Crypto Application for Sygnum Bank as 2nd Level Support

May 2021 - Sep 2021

5 months

Zürich, Switzerland

Contractor

SIX Group

Python programming, Windows PowerShell, Scala, Postgres DB for index calculation
Scala/Postgres backend coding on Scalatra framework for web application that displayed a livestream video from an Android app, bidirectional with voice for an insurance company. Used Selenium with Python for UI testing.
Introduction of Solaris packaging for Sendmail application for CS Solaris build, used as mail backbone in Credit Suisse

Jun 2020 - Nov 2020

6 months

Lenzburg, Switzerland

Contractor

Finnova AG

Scala programming with Akka framework for new services (WebSockets) around Finnova Core Banking Suite, with interfaces to Elasticsearch, Postgres, Kafka
OpenShift deployments with Jenkins pipeline and introduction of Selenium testing with Python on Selenium Grid

Jan 2019 - Dec 2020

1 year

Winterthur, Switzerland

Contractor

AXA Winterthur

Migration of JBoss with Java Swing frontend into the cloud (Azure, AWS) of the backend with Red Hat OpenShift
DB2 engineering, Artifactory, OpenShift deployments with Jenkins pipeline (CI)

Oct 2018 - Aug 2021

2 years 11 months

Zürich, Switzerland

Student

ETH Zürich

Full-time Master’s studies in MSc ETH in Applied Mathematics parallel to professional work
Computational quantum physics (C++, Python with ML Keras, PyTorch)
Combinatorial optimization, operations research (Python)
Statistical modelling, applied linear models (R)
Numerical analysis for partial differential equations (Matlab)

May 2018 - Oct 2018

6 months

St. Gallen, Switzerland

Contractor

Raiffeisen Bank

Cyber security in the e-banking application including PL/SQL, SAP HANA, C++ with Qt framework, JavaScript
Simulating attacks to identify their fingerprints and characteristics

Jun 2016 - Apr 2018

1 year 11 months

Zürich, Switzerland

Contractor

Credit Suisse

Technical project leader for offshore team in India (Scrum)
PL/SQL, shell and Python scripting on Linux (Red Hat) for data warehouse application in treasury department
Using ETL Informatica; responsible for Splunk, Jenkins continuous integration on Linux Red Hat; migration to TeamCity
Created a virtual environment for developers in VMware with build process, introducing RPM packaging and Splunk

Apr 2016 - Jun 2016

3 months

Private Project

Nov 2015 - Apr 2016

6 months

Bern, Switzerland

Contractor

Federal Office for IT

PL/SQL coding for a legacy application on Solaris for the Federal Statistical Office
Simplified legacy PL/SQL code full of global variables, including procedures with 4000+ lines of code each.

Jul 2015 - Oct 2015

4 months

Zürich, Switzerland

Contractor

AdNovum Informatik

Support of the TWINT application in production: PL/SQL, Oracle, shell scripting, Linux
Integration of Coop and Swiss Post into TWINT; mentoring a new ETH graduate in Oracle databases and PL/SQL

Apr 2014 - Jun 2015

1 year 3 months

Bern, Switzerland

Contractor

Federal Office for IT

General consulting/programming (PL/SQL, Unix) and migration of a scheduling system into Oracle Job Scheduler

Sep 2010 - Mar 2014

3 years 7 months

Zürich, Switzerland

Contractor

Credit Suisse

Java coding for J2EE WebLogic application with JSF: project involved consolidating two legacy Java applications into one J2EE application for personal account access to Unix servers; data migration from two independent DB2 databases to one Oracle schema without errors; programming interfaces like LDAP and Control-SA; extensive sudo configurations.
Second project: PL/SQL and shell scripting for exposure analytics calculation; created a build system in VirtualBox for each developer, introducing continuous integration; introduced packaging for Solaris; migrated from Redwood JCS to Control-M

Sep 2008 - Apr 2010

1 year 8 months

Bern, Switzerland

Contractor

SBB

Web application DAZU on GlassFish J2EE server for ETCS (European Train Control System): Oracle, Spring MVC, JPA; performance gains using EXPLAIN PLAN (query response time reduced from 30s to 5s)

Jan 2008 - Jul 2008

7 months

Zürich, Switzerland

Contractor

Zürcher Kantonalbank

Java and C++ for currency data from SAP, Avaloq, Reuters host interfaces, sending all data to SeeBeyond EAI

Feb 2007 - Nov 2007

10 months

Basel, Switzerland

Contractor

SBB Cargo

Backend Java/J2EE coding with Oracle TopLink, WebSphere, PL/SQL, Eclipse RCP client in project POLAR (planning of cargo, routes, and train journeys); improved SQL query performance using EXPLAIN PLAN; extensive Java coding with Oracle TopLink for DB access.

Jan 2004 - Dec 2008

4 years

Zürich, Switzerland

Consultant

e3 AG

Shell scripting, Solaris/AIX packaging, Unix system engineering, Oracle 9 DBA, MQSeries, Tivoli
Workflow programming (build-time) with MQ Workflow, J2EE, WebLogic, Control-SA
EAI (SeeBeyond ICAN 5) programming for Vontobel Bank with interfaces to Avaloq and SAP
Automated migration of 1000+ UNIX servers of Credit Suisse to the internal UACS security standard via deployment of a custom Solaris package on each server and patching for remote access via scripts.

Jan 2002 - Dec 2004

2 years

Zürich, Switzerland

Engineer

Teconomic AG

Java, Oracle 8, AIX 4, XSLT for backend insurance application (Riester pension) for Winterthur Insurance; standard Java coding and SQL query improvements for various business rules

Jan 2002 - Dec 2003

1 year

Zürich, Switzerland

Student

Seminar for Applied Mathematics, ETH Zurich

Returned to ETH for physics study (not completed); worked at SAM (Seminar for Applied Mathematics) with C++ (STL) and MPI on Solaris 8 for a numerical computation library (finite elements)

Jan 1999 - Dec 2003

3 years

Zürich, Switzerland

Engineer

AdNovum AG

C++, CORBA on Solaris, DB2, Oracle for an intranet application for UBS
C programming with PKCS#11 API integration into the OpenSSL project on Solaris and Windows NT
Testing on different hardware (smartcards) revealed bugs until all were fixed; compiling and testing on Solaris and Windows NT presented challenges and discoveries.