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Senior Test Engineer

Frequentis Bratislava, Region of Bratislava, Slovakia

onsitefull-time
Posted Jan 29, 2026Apply by Feb 28, 2026

Role & seniority: QA/IV&V Engineer (mid-to-senior); several years of testing/verification experience in complex projects

Stack/tools: VOIP/telecommunications, Linux, Java, Groovy, SQL, Spring, HTML5, XML, REST API, Selenium; databases (SQL Server, PostgreSQL); tools: Wireshark, Postman, GitHub, Maven, Git, Jira, Jama, Confluence; test environments and lifecycle management

Top 3 responsibilities

  • Participate in Scrum ceremonies; collaborate with developers, product owners to embed quality from the start

  • Design, review, and refine test strategies, plans, and specifications; execute system tests in complex environments; manage defects (JIRA/JAMA) and automate where applicable

  • Document test progress and results; produce independent quality reports; review system and user requirements for clarity and quality

Must-have skills

  • VOIP domain knowledge (telecommunications, RFC 3261), IP voice/video/multimedia, analog-to-digital signal handling

  • Linux proficiency (CLI, system basics), programming experience (Java/Groovy/SQL), REST APIs, Selenium

  • Practical test management, defect reporting, and test execution in IT/telecom integration projects

  • English fluency; university technical education; willingness to travel ~10%

Nice-to-haves

  • Experience with agile software/system development; test data management; test environment management

  • Familiarity with JIRA/Jama, Confluence, and common test automation tools

  • Microsoft Office proficiency

  • Locat

Full Description

Job Introduction

FREQUENTIS Solutions & Services (FSS) as a member of the Austrian Group FREQUENTIS AG, is focused on software development, system engineering and delivery of safety-critical voice communication and information systems. Our solutions are developed and distributed in the following business segments: Air Traffic Management & Defence (civil and military air traffic control, aeronautical information management), Public Safety (police, fire and rescue services, emergency medical services) and Public Transport & Maritime (railway and urban transport solutions, vessel traffic management). Voice and data communication is crucial for any air traffic control service.

Our Independent Verification & Validation Team is responsible for the evaluation of the developed product and project solutions. Its primary task is the technical quality assurance of our systems, using various methods of verification and validation (Acceptance, Use Cases, Operational Scenarios…). Within the Independent Verification & Validation Team, the customer is at the center of attention — ensuring that the required solutions in the safety‑critical field of air traffic management are evaluated in the best possible way, assessed independently, and that the release process on the part of product development and project execution is supported to the highest standard.

Key Tasks

Take part in daily work of the Scrum team: Attend daily stand-ups, sprint planning, reviews, and retrospectives. Collaborate closely with developers, product owners, and other team members to ensure quality is built into the product from the start

Test management: Design, review and refine test strategies, test plans and test specifications based on project and product requirements as well as system design and architecture

Test execution and Defect management: Execute system tests in complex environments (incl. Acceptance Verification, Use Case Validation). Document defects with lifecycle tools such as JIRA, JAMA and automation frameworks to ensure efficient testing processes

Documentation: Document and communicate test progress clearly, from requirements through execution to final results and problem reports, create independent quality reports

Reviews: Review system and user requirements and contribute your technical perspective to ensure clarity and quality

Key Qualifications

VOIP domain: telecommunications, networking, RFC 3261 standard; software application experience - audio (voice), video, multimedia and metadata over IP networks, transformation of analog signals into data packets and ensuring efficient, secure, and high-quality delivery; legacy interfaces for voice communication

Linux domain: CLI navigation, file viewers & editors, permissions and ownership, package management, system administration & networking basics

Programming: Java, Groovy, SQL, Spring, HTML5, XML, RESP API, Selenium, VoIP Databases: SQL Server, Postgres Tools/Platforms: Wireshark, Postman, Github, Maven, Git, Jira, Jama, Confluence Several years of experience in testing, verification and validation of complex projects or product developments using various test tools Experience with integration projects in IT and telecommunications environments (VoIP)

Technical Skills & Competencies

Experience in software/hardware/network testing (Test Environment management) Experience with test phase processes (preparation, execution, evaluation) and documentation (Test Data management) Experience with a BUG reporting (Defect management) Experience with agile software/system development process is an advantage Microsoft Office, Computer literacy and general overview of IT technologies

Personality Requirements & Skills

Completed technical education (University) Strong social and communication skills, collaborative, connecting, and a reliable team player Very good English skills (written and spoken) are required; Willingness to travel up to approx. 10%

Our Values

Around 2,600 employees are committed to creating a safer world with their innovative strength and technology orientation. Our culture is based on a working environment characterized by fairness and trust, mutual respect and appreciation. As an international company, we value this diversity and recruit regardless of age, gender, origin, ethnicity, sexual orientation or religion. We value fair and good working conditions, an optimum work-life-balance and offer all our employees equal development opportunities. In doing so, we focus on long-term working relationships in order to keep the valuable know-how of our employees stable.

Benefits

We offer an international and exciting work environment with manifold opportunities to grow both personally and professionally. Happiness and commitment of our employees is a key contributor to our success and we therefore put strong emphasis on our team spirit and a healthy work-life-balance. We are located in a modern office building with good public transportation connections, close to the city center of Bratislava.

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TEAM & EMPLOYEE WORKING HOURS AT WORK OFFICE IT-EQUIPMENT PROGRAM COMPANY EVENTS REFERRAL PROGRAM Show more Show less

ScrumTest StrategyTest PlanTest SpecificationSystem Test ExecutionAcceptance VerificationUse Case ValidationDefect ManagementJIRAJAMAVoIPLinux CLIJavaGroovySQLSeleniummulti-location

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