Esmail (Fani) Saberi

Senior Load and Performance Tester

Esmail Saberi
Düsseldorf, Germany

Experience

Feb 2022 - Dec 2025
3 years 11 months

Senior Load and Performance Tester

Deutsche Bahn (DB-Netz)

  • Design, development, and execution of load and performance tests for the PRISMA project
  • Use of Apache JMeter, Gatling, Apache ActiveMQ, JMS/Tibco EMS, SikuliX, Jython, Amazon AWS, PAN-Client
  • Methods: load testing, test automation
Oct 2021 - Dec 2021
3 months

Senior Tester

Baader Bank

  • Design, development, and execution of load and performance tests
  • Dynamic generation of test data (FIX messages) during load tests using JMeter
  • Use of JMeter, Robot Framework, Python, Ubuntu, IBM MQ, Git
  • Methods: load testing, test automation, sending and receiving FIX messages to IBM MQ
Jun 2021 - Oct 2021
5 months

Senior Tester

ipoque GmbH – A Rohde & Schwarz Company

  • Development and execution of automated tests, including load and performance tests
  • Reviewing user stories and adding requirements to make software testable
  • Use of JMeter, Selenium, Robot Framework, Python, Jira, Confluence, Ubuntu, Git, GitLab, CI/CD, Docker, Kafka
  • Methods: load testing, test automation, Scrum
Mar 2020 - Mar 2021
1 year 1 month

Senior Tester

Major bank in Vienna

  • Analyzing project requirements for regular load and performance tests, as well as unit tests
  • Creating a project-related test concept
  • Designing and developing functional and load tests
  • Executing load and performance tests with JMeter and unit tests with Selenium (Python)
  • Test automation and final documentation
  • Use of JMeter, Selenium, JavaScript, Java, Python, Jenkins
  • Methods: load testing, test automation, Scrum
Jul 2019 - Nov 2019
5 months

Senior Load Tester

Public sector (Hanover)

  • Setting up a digital administration for Lower Saxony
  • Creating load test concepts and proofs of concept
  • Executing load tests
  • Automating tests for microservices and REST interfaces
  • Developing a test framework for automating tests of microservices and REST interfaces
  • Use of JMeter, SoapUI, JavaScript, BeanShell, Java, Selenium
  • Methods: load testing, test automation, Scrum
Oct 2018 - Jan 2019
4 months

Test Automation Developer

Dataport Altenholz

  • Testing and test automation of REST interfaces
  • Developing a test framework using SoapUI to automate REST interfaces
  • Using SoapUI, Swagger, Git, Jenkins, Groovy
  • Methods: Test automation, Scrum
Apr 2018 - Aug 2018
5 months

Tester

CTS EVENTIM AG

  • Testing REST interfaces
  • Developing a test framework for automating REST APIs
  • Developing a test framework using Selenium for end-to-end and UI tests
  • Using Jmeter, JavaScript, BeanShell, Java, SpecFlow, SoapUI, Selenium, Postman, TeamCity, Swagger, Magento
  • Methods: Test automation, Scrum
Jul 2017 - Dec 2017
6 months

Senior Load Tester

Federal Public Service (Nuremberg)

  • Creating load test concepts and proofs of concept
  • Performing load tests at the application/frontend level
  • Developing a test framework for test automation of microservices/REST APIs
  • Using Jmeter, JavaScript, BeanShell, Java, Git
  • Methods: Load testing, test automation, Scrum
Apr 2017 - May 2017
2 months

Test Automation Consultant

SyroCon Consulting GmbH

  • Designing and supporting the project team in developing test automation for developer-level test cases, especially for newly developed microservices
  • Using Selenium, Jmeter, SoapUI, JavaScript, BeanShell, Java, Git, Jenkins
  • Methods: Test automation, Scrum
Mar 2017 - Apr 2017
2 months

Test Design and Automation

Zurich Insurance

  • Creating a comprehensive test concept including test automation for a Digital Interface
  • Extending Jmeter as a new test framework to enable fully automated tests for all users without Jmeter knowledge
  • Using Java, JSON, XML, Excel/CSV, Smalltalk, REST-API, API-Management
  • Methods: Test automation
Aug 2016 - Dec 2016
5 months

Test Automation Engineer

VHV-Versicherungen

  • Design and development of automated integration tests using Jmeter for a microservice-based web application
  • Integration of the tests into Jenkins for continuous integration
  • Development of UI tests using Selenium
  • Design and execution of load and performance tests using Jmeter
  • Use of Selenium, Jmeter, JavaScript, BeanShell, Java, Jenkins
  • Methods: Load and performance testing, test automation, Scrum
May 2016 - Jun 2016
2 months

Load and Performance Test Specialist

German major bank in Frankfurt

  • Analysis of project requirements for regular load and performance tests and creation of a project-specific concept
  • Creation of synthetic test data with JSON
  • Creation of LPT scripts for service calls and responses
  • Execution of load and performance tests and evaluation of results
  • Final documentation
  • Use of Selenium, Jmeter, JavaScript, BeanShell, Java, JSON
  • Methods: Load and performance testing, test automation
Feb 2016 - Mar 2016
2 months

Load and Performance Test Specialist

Large IT service provider in Dortmund / e-commerce provider in Freiburg

  • Design and development of a test framework for load and performance tests to replicate and analyze the root causes of performance issues
  • Support in interpreting and identifying causes of performance issues
  • Advising developers on fixing performance issues
  • Use of Linux, Jmeter, JavaScript, BeanShell, Java
  • Methods: Load and performance testing, system monitoring
Jul 2015 - Dec 2015
6 months

Load and Performance Test Specialist

Large insurance company in Munich

  • Design and execution of load and performance tests for a web-based agency system during a data migration (AIX environment)
  • Aligning requirements with the business, test, and migration teams
  • Test execution and result documentation
  • Support in interpreting and narrowing down performance bottlenecks (isolation testing)
  • Advising developers on bug fixes
  • Use of AIX, Selenium, Jmeter, Dynatrace, JavaScript, BeanShell, Java, Jira
  • Methods: Load and performance testing
Dec 2014 - Apr 2015
5 months

Load and Performance Test Specialist

Reinsurer in Hanover

  • Design and execution of load and performance tests
  • Set up of a test environment as a VM in an ESX environment
  • Isolation tests to narrow down performance bottlenecks
  • Advising developers on bug fixes
  • Stability and functional tests as well as test automation
  • Use of Selenium, Jmeter, JavaScript, BeanShell, VM, Tomcat, JBoss, Java, Maven, Jira, MS Windows, Ubuntu Linux
  • Methods: Load and performance testing, functional testing, test automation
May 2014 - Nov 2014
7 months

Senior Consultant, Test Specialist

Various Small Projects

  • Conducted various load testing projects and application monitoring
  • Adapted existing test frameworks to new application releases
  • Automated GUI testing
  • Expanded end-to-end application monitoring scripts with new requests
  • Used JMeter, AutoIt, VBScript, Java, C#, .NET, Windows, Linux
  • Methods: Load and performance testing, test automation, end-to-end application monitoring, GUI automation
Sep 2013 - Apr 2014
8 months

Test Specialist for Load and Performance Testing

T-Systems International GmbH

  • Designed and developed a custom test framework for load and performance tests
  • Automated testing and GUI/surface automation
  • Used Silk Performer, LoadRunner, Ranorex, HP QTP, AutoIt, VBScript, SQL, MS Windows, VMware
  • Methods: Load and performance testing, business and functional testing, test automation, GUI/surface automation
Nov 2012 - Aug 2013
10 months

Senior Consultant / Developer, Test Specialist for Load and Performance Testing

Major Bank in Utrecht

  • Conducted various load testing projects for web applications (online banking)
  • Performed application monitoring and automated testing of web interfaces (online banking)
  • Functional and load performance testing
  • Used Selenium (WebDriver, RC, GRID, IDE), MS Windows, Linux, JMeter, AutoIt, VBScript, Java, C#
  • Methods: Load and performance testing, functional testing, test automation, end-to-end application monitoring
Jul 2012 - Sep 2012
3 months

Senior Consultant, Project Manager, External Software Developer

Swiss Major Bank in St. Gallen

  • Developed a test data loading system to generate bulk data based on statistical guidelines
  • Developed a 24x7 monitoring system with alert functionality for a web application
  • Performed load and performance testing
  • Used AutoIt, Java, XML, Excel
  • Methods: Test automation, test data visualization
Jun 2012 - Jun 2012
1 month

External Software Developer for Test Automation

Logistics Company in NRW

  • Developed application monitoring for two communicating software systems (ORTEC and GreenCat)
  • Performed performance analysis and statistical evaluation of logged response times
  • Conducted root cause analysis and provided evidence for damage claims
  • Used AutoIt, Java, JavaScript, Excel, SQL, XML
  • Methods: Functional testing, test automation, end-to-end application monitoring
Apr 2012 - May 2012
2 months

Load and Performance Test Specialist

German major bank in Frankfurt

  • Load and performance tests by correcting, adapting, and extending existing JMeter scripts for a new software release
  • Defect management
  • Use of JMeter, Java, JUnit, JavaScript, Beanshell
  • Methods: load and performance testing, functional testing, test automation, capture-replay
Mar 2000 - Dec 2011
11 years 10 months

Lead Performance Analyst and Automation Specialist

European data center of an American major bank

  • Setting up and leading a load and performance team in the EMEA region
  • Load and performance testing and software quality assurance
  • Design and development of end-to-end monitoring solutions for critical web applications
  • Automation of processes in Microsoft Windows environments
  • Analysis and development of software solutions for complex IT issues
  • Development of validation and remediation tools for the audit department to review and adjust system settings
  • Use of MS Windows, SilkPerformer, Excel, XML, SOA, IIS 5-7, WebLogic, UNIX, SQL, Perl, Oracle, PHP, Python, Delphi, LoadRunner, JavaScript, VBScript, .NET, C, C++, Java
  • Methods: load and performance testing, business and functional testing, test data automation, test automation, end-to-end application monitoring
Nov 1998 - Feb 2000
1 year 4 months

Senior Consultant, Load and Performance Test Specialist

American IT service provider in Neuss

  • Various load testing projects for banks and insurance companies
  • Consulting on SilkPerformer in Germany
  • Design of load tests, test execution, documentation, defect logging and tracking
  • Use of SilkPerformer, SilkTest, JavaScript, C, web UI automation
  • Methods: load and performance testing, functional testing, test data automation, test automation
Jan 1998 - Oct 1998
10 months

External Project Manager / Software Developer

Dresdner Bank

  • Automation of system-level maintenance tasks using Java/shell scripts
  • Problem analysis and solution design, method consulting
  • Use of AIX/UNIX, Java, shell scripts
  • Methods: automation, programming
Apr 1997 - Dec 1997
9 months

External Project Manager / Software Developer

Automotive industry in Rüsselsheim

  • Process automation and interface programming
  • Development of a JavaBeans application for online retrieval of information leaflets for chemicals and car paints
  • System design
  • Use of MS Windows, JavaBeans
  • Methods: process automation, programming, interface programming
Apr 1996 - Mar 1997
1 year

External Project Test Staff

IT industry in Mannheim

  • Load tests and comparative measurements of various IBM mainframes according to DIN 66273/ISO 9126
  • Automatic generation and visualization of test data
  • Designing load tests, execution and documentation
  • Performance analysis
  • Use of IBM MVS, UNIX, MS Windows, custom load simulator and evaluation program, C, Excel
  • Methods: programming, test automation, automatic generation of test data, test data visualization
Oct 1994 - Mar 1996
1 year 6 months

Test Specialist for Load and Performance Tests

Telecommunications in Hamburg

  • Load tests and comparative measurements of PCs from different manufacturers according to DIN 66273
  • Automatic generation and visualization of test data
  • Designing load tests, execution, documentation
  • Performance analysis
  • Use of MS Windows, custom load simulator and evaluation program, C, Excel
  • Methods: programming, test automation, test data visualization
Jan 1991 - Sep 1994
3 years 9 months

Research Associate / Project Manager

University of Kassel / Industry

  • Development of a load test system according to DIN 66273 for measuring and evaluating computer systems
  • Problem analysis, feasibility study, development of a load simulator and evaluation program
  • Comparison of performance of Siemens BS2000, IBM MVS and UNIX
  • Use of BS2000, MVS, UNIX (Sun OS, AIX), SIMUS, TPNS, custom load simulator, statistics
  • Methods: programming, test automation, test data visualization
Jan 1990 - Dec 1990
1 year

Research Associate / Project Manager / Software Developer

University of Kassel / Industry

  • Development and programming of an interface between Apollo workstation and BS2000 computer for use as a graphical terminal
  • Use of UNIX (Sun OS), BS2000, CGI, shell scripts, C
  • Methods: programming, interface programming
Apr 1987 - Dec 1989
2 years 9 months

Research Associate / Project Staff / Software Developer

University of Kassel / Industry

  • Porting of Kyoto Common Lisp (KCL) from UNIX to BS2000
  • Adaptation of the original software for BS2000, feasibility study
  • Use of BS2000, Common Lisp, UNIX, C, assembler
  • Methods: programming, interface programming

Skills

Focus Areas

  • Software Quality Assurance
  • Load And Performance Testing
  • Analyzing And Solving Complex It Problems
  • Automation Of It Processes, Like Automatic Checks Of Systems/applications For Their Current Settings And Any Differences From Relevant Policies, And Automatic Correction Of Found Differences
  • End-to-end Monitoring Of Critical (Web) Applications
  • Software Solutions In All Procedural, Functional, Logical, And Object-oriented Programming Languages, As Well As Scripting Languages Like Vbs, Js, Ws, And Autoit, Etc.

Operating Systems

  • Windows, Unix/unix Derivatives Like Ubuntu, Linux Mint, Macos, Bs2000, Ibm Mainframes "Z/os", Etc.

Software / Tools

  • Jmeter, Gatling, Hp Loadrunner, Silkperformer, Custom-built Load Testing Tools, Hp Quality Center, Silkcentral, Autoit, Selenium-java, Selenium-python, Soapui, Ranorex, Ms Office, Excel, .Net, Intellij Idea, Eclipse, Pycharm, Git, Gitlab, Jenkins, Teamcity, Jira, Confluence, Amazon Aws, Pan-client

Programming Languages

  • C, C++, C#, Java, Python, Groovy, Scala, Javascript, Typescript, Visual Basic, Vba, Vbscript, Autoit, Pascal, Delphi, Borland Bdl, Batch, Perl, Wsh, Vb, Xml, Html, Cobol, Fortran

Databases

  • Ms Sql, Oracle

Methods / Processes

  • Working On Different Project Types: Waterfall Model, Agile Software Development (Scrum), Load Testing/benchmark Tests According To Din 66273

Others

  • Ooa/ood, Ci/cd, Amazon Web Services (Aws), Ibm Cloud, Uml, Regular Expressions, Tcp/ip, Kafka, Ibm-mq, Apache Activemq

Languages

German
Elementary

Education

University of Kaiserslautern

Diploma in Computer Science, minor in Mathematics · Computer Science · Kaiserslautern, Germany · 1.8

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