Integration tester [Tibco, Telco - Senior]

Project overview

We are looking for an experienced Integration Tester for a long-term cooperation for a major telecommunications operator to join our TITANS freelancers team.

Project requirements

• 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)
• 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
• 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

Project details

• Start: 01.01.2027 or by agreement
• Duration: 12-36 months with the possibility of extension
• Location: Bratislava, SK, SK
• Languages: English, Slovak