Go to Website
  • en
  • de

Nenad T.

Contractor

Spreitenbach, Switzerland

Experience

Sep 2022 - Present
3 years
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 at 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 the Scalatra framework for a web application that streamed live video from an Android app, bidirectional with voice, for an insurance company. Used Selenium with Python for UI testing.
  • Introduced Solaris packaging for the sendmail application in the CS Solaris build, used as the mail backbone at Credit Suisse
Jun 2020 - Nov 2020
6 months
Lenzburg, Switzerland

Contractor

Finnova AG

  • Scala programming with the AKKA framework for new services (Websockets) around the Finnova core banking suite, with interfaces to Elasticsearch, Postgres, Kafka
  • Openshift deployments with Jenkins Pipeline and introduced Selenium testing with Python on a Selenium Grid
Jan 2019 - Dec 2019
1 year
Winterthur, Switzerland

Contractor

AXA Winterthur

  • Migrated JBOSS with a Java Swing frontend to the cloud (Azure, AWS) for the backend using Redhat and 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 Applied Mathematics at ETH Zurich, done alongside work
  • Computational quantum physics (C++, Python with Keras and 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 the Qt framework, JavaScript
  • Simulated 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 teams in India (Scrum)
  • PL/SQL, shell, and Python scripting on Linux (Redhat) for a data warehouse application in the treasury department
  • Used ETL Informatica; responsible for Splunk and Jenkins continuous integration on Redhat Linux, migrated to TeamCity
  • Created a virtual environment for developers in VMware with a build process, introduced RPM packaging and Splunk
Apr 2016 - Jun 2016
3 months

Private Project

Nov 2015 - Apr 2016
6 months
Bern, Switzerland

Contractor

Bundesamt für Informatik

  • PL/SQL coding for a legacy application on Solaris for the federal statistical office
  • Simplified legacy PL/SQL code full of global variables, with some procedures over 4000 lines each
Jul 2015 - Oct 2015
4 months
Zürich, Switzerland

Contractor

AdNovum Informatik

  • Supported the TWINT application in production, using PL/SQL, Oracle, shell scripting, Linux
  • Integrated Coop and Post into TWINT. Led and mentored a new ETH graduate in Oracle databases and PL/SQL
Apr 2014 - Jun 2015
1 year 3 months
Bern, Switzerland

Contractor

Bundesamt für Informatik

  • General consulting and programming (PL/SQL, Unix) and migrated the scheduling system to Oracle Jobs Scheduler
Sep 2010 - Mar 2014
3 years 7 months
Zürich, Switzerland

Contractor

Credit Suisse

  • Java coding for a J2EE WebLogic application with JSF; project replaced two legacy Java applications with a single J2EE app for personal account access to Unix servers. Migrated data from two DB2 databases to one Oracle schema without errors; programmed interfaces like LDAP and Control-SA; managed extensive sudo configurations
  • Second project involved PL/SQL and shell scripting for exposure analytics calculation. I created a build system in a virtual box for each developer, introduced continuous integration, added packaging for Solaris, and 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) with Oracle, Spring MVC, JPA; improved performance using EXPLAIN PLAN (query time reduced from 30 sec to 5 sec)
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 with EXPLAIN PLAN. Extensive Java coding with Oracle TopLink for database access.
Jan 2004 - Dec 2007
4 years
Zürich, Switzerland

Consultant

e3 AG

  • Shell scripting, packaging for Solaris/AIX, Unix system engineering, DBA on Oracle 9, MQ Series, Tivoli
  • Workflow programming (build time) with MQ Workflow, J2EE, WebLogic, Control SA
  • EAI programming (SeeBeyond ICAN 5) for Vontobel Bank with interfaces to Avaloq and SAP
  • Automated migration of 1000+ Unix servers at Credit Suisse to the internal UACS security standard via deployment of a custom Solaris package on each server and patching each for remote access via script.
Jan 2002 - Dec 2003
2 years
Zürich, Switzerland

Engineer

Teconomic AG

  • Java, Oracle 8, AIX 4, XSLT; backend insurance application (Riester-Rente) for Winterthur Insurance. Standard Java coding and SQL query improvements for various business rules
Jan 2002 - Dec 2002
1 year
Zürich, Switzerland

Student

Seminar für Angewandte Mathematik, ETH Zürich

  • Returned to ETH for physics studies (not finished). Worked at the Seminar for Applied Mathematics with C++ (STL) and MPI on Solaris 8 for a library of concepts for numerical computations (finite elements)
Jan 2000 - Dec 2002
3 years
Zürich, Switzerland

Engineer

AdNovum AG

  • C++ and CORBA on Solaris, DB2 and Oracle for an intranet application at UBS
  • C programming with PKCS#11 API integrated into the OpenSSL project on Solaris and Windows NT
  • Testing on different hardware (smartcards) revealed new bugs until all were fixed. Compiling and testing on Solaris and Windows NT also had its challenges and discoveries.

Languages

German
Native
Croatian
Native
English
Advanced
French
Advanced
Italian
Intermediate
...and 1 more

Education

Oct 2018 - Aug 2021

ETH Zürich

MSc ETH in Applied Mathematics · Applied Mathematics · Zürich, Switzerland

Oct 1995 - Jun 2000

ETH Zürich

Master of Science ETH in Mathematics · Mathematics · Zürich, Switzerland

Certifications & licenses

Certified Java Developer

Certified Java Programmer

Certified Solaris 8 System Administrator

Oracle Certified Associate Programmer PL/SQL 9i

Oracle

Oracle Certified Professional DBA 9i

Oracle

Need a freelancer? Find your match in seconds.
Try FRATCH GPT
More actions

Similar Freelancers

Discover other experts with similar qualifications and experience

Marco S.

Business Analyst, Data Warehouse Developer

View Profile
Ursula M.

Data Scientist & AI Engineer & AI Architect

View Profile
Christoph W.

System Architect / System Engineer / Programmer

View Profile
Karl E.

Hiring Requirement

View Profile
Peter S.

Web Application Developer PHP / WordPress Plugin Application Development

View Profile
Max R.

ICT Solution Architect Senior

View Profile
Simon S.

Cloud Data Platform Product Owner & Project Manager

View Profile
Stephan S.

Senior Data/ML Consultant & Technical Lead

View Profile
Sven M.

SAP BW Development & Consulting, Ongoing Support, International Industrial Company

View Profile
Stefan A.

Data Scientist

View Profile
Stefan B.

Senior Full Stack Developer / Co-Founder / CTO / Head of Development

View Profile
Carlos M.

Migration Zend Framework 2/Laminas

View Profile
Serge K.

Senior DevOps (external)

View Profile
Reinhold S.

Senior Software Developer

View Profile
Henok A.

Founder and Managing Director

View Profile
fratch Part of Bitkom logo
linkedIncrunchbaseyoutube
  • English
  • Deutsch

2025 © FRATCH.IO GmbH. All rights reserved.