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Wallet icon Coin icon Rate 5 000 € - 6 000 € / month info

info The reward is calculated upon delivery of 20 MD per month (1MD=8h)

Timer icon Form of cooperation Freelance: Full-time
Briefcase icon Sector Telco
Location icon Location Bratislava, 25% Remote
Project duration 12-36 months with the possibility of extension
Period of cooperation 01.01.2027 - 31.12.2027
Start date 01.01.2027 or by agreement
Project duration 12-36 months with the possibility of extension
Period of cooperation 01.01.2027 - 31.12.2027
Start date 01.01.2027 or by agreement

Technology

  • TIBCO
  • SQL
  • JIRA
  • GIT
  • WS Webservice REST
  • WS Webservice SOAP
  • WSDL
  • SoapUI
  • JSON
  • XML
  • XSD
  • Postman

Languages

  • English flag English - active, B2/C1/C2
  • Slovak flag Slovak - native

Project description

  • the project focuses on integration and end-to-end testing of complex TELCO systems, particularly in the area of BSS/OSS, system interfaces, APIs, and asynchronous communication between applications
    • experience with TIBCO BusinessWorks and TIBCO EMS, which are used in enterprise integrations and messaging, is a significant advantage
  • integration testing of complex IT systems in a telecommunications environment
  • testing communication between BSS/OSS systems, CRM, order, activation, and billing platforms
  • design, preparation, and execution of integration and end-to-end (E2E) tests
  • testing of integration interfaces and web services
  • testing of REST APIs and SOAP Web Services
  • verification of the correctness of requests, responses, data structures, and integration contracts
  • preparation of positive, negative, and error test scenarios
  • testing of synchronous and asynchronous communication between systems
  • verification of message processing, request correlation, timeouts, and retry mechanisms
  • checking data transformations and mappings between systems
  • working with XML and JSON data formats
  • validation of SOAP interfaces using WSDL/XSD
  • testing of TELCO processes from order creation to service activation and billing
  • preparation and management of test data
  • verification of data and states in databases using SQL
  • analysis of application and integration logs
  • tracking requests across multiple systems through message identifiers
  • identification of integration problem causes and design of reproducible test scenarios
  • recording, documentation, and retesting of defects
  • cooperation with developers, integration specialists, analysts, and other testers
  • support for system, integration, and acceptance testing
  • cooperation in stabilizing and improving the quality of integration solutions
  • support for the automation of API and integration tests according to the technology stack used
     
  • cooperation 75% ON-SITE Bratislava mode (HOME OFFICE 5 days / month) 

Project requirements

  • min. 3 years of demonstrable practical experience with integration testing in a TELCO environment
  • experience in testing communication between multiple enterprise systems
  • good knowledge of BSS/OSS processes
  • familiarity with processes such as:
    • Order Management
    • Service Activation / Provisioning
    • Service Inventory
    • Billing
    • Customer Management / CRM
  • practical experience in testing APIs and web services
  • experience with REST API and/or SOAP Web Services depending on the interface type
  • practical knowledge of at least one of the tools:
    • Postman
    • SoapUI
    • ReadyAPI
  • ability to independently prepare API requests, verify responses, and test error scenarios
  • knowledge of XML and JSON
  • ability to control data structures, mandatory fields, and data mappings
  • familiarity with WSDL/XSD for SOAP integrations
  • understanding of the principles of asynchronous integrations and messaging
  • knowledge of principles:
    • Message Queues
    • Correlation ID
    • Retry Mechanisms
    • Timeouts
    • Duplicate Message Processing
    • Delayed Responses
  • practical knowledge of SQL
  • experience with:
    • analysis of application or integration logs
    • design and execution of integration and E2E test scenarios
    • documentation of test results and defects
  • ability to:
    • prepare test data and verify data consistency between systems
    • identify the root cause of integration errors
    • independently communicate technical issues with the development and integration team
       
  • active knowledge of Slovak and English languages (written and spoken)
     
  • a big advantage:
    • practical experience with TIBCO BusinessWorks
    • experience with:
      • TIBCO EMS
      • scripting in Java, Python, or Groovy
      • queues, topics, message headers, and correlation ID
      • automation of API and integration tests
      • Linux environment
      • analysis of logs in Splunk / Kibana / Elasticsearch
      • CI/CD
      • performance testing of integration interfaces
      • testing of complex TELCO transformation or migration projects
      • fixed or mobile telecommunication services
      • processes for activating internet, television, or mobile services
    • knowledge of:
      • JMS / Java Messaging Service
      • WireMock / SoapUI Mock Services
      • TM Forum Open APIs
      • Git
      • Jenkins or GitLab CI
      • JMeter / LoadRunner    
    • ability to analyze integration processes and data transformations in TIBCO
    • knowledge of one of the tools:
      • REST Assured
      • Karate
      • ReadyAPI Test Automation
      • pytest
      • familiarity with TM Forum eTOM / SID
         
  • very good organizational and communication skills
  • ability to effectively solve problems under pressure
  • proactivity and analytical thinking

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