Voice Quality / VBD Test Specialist

BT Ireland; Ipswich; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading telecommunications company in the UK seeks a Voice Quality Specialist to enhance voice quality across projects. The role requires expertise in VoIP technologies and automation, along with strong communication skills. You will collaborate with diverse teams ensuring quality assurance in production. This position offers opportunities for career growth and a supportive work environment focused on innovation and excellence.

Benefits

10% on target bonus

BT Pension scheme

25 days annual leave

24/7 private virtual GP appointments

World-class training opportunities

Qualifications

• Experience in voice platforms and systems.
• Technical skills in scripting for automation.
• Knowledge of voice codecs and related standards.

Responsibilities

• Maintain automation frameworks for applications.
• Collaborate to create test plans and manage testing.
• Integrate tests into CI/CD pipelines.

Skills

Voice Quality testing techniques

VoIP (SIP & RTP)

Echo Control

Strong communications skills

Tools

Selenium

Appium

JIRA / Xray

Amazon Web Services

Job description

The Voice Quality Specialist is a hands‑on role, and you will play a crucial role in the test of Voice Quality on several key projects, both internally and supplier developed products. You will be critical to the development of quality assurance and automation tooling to provide the best in class service customers expect. You will drive and execute the most complex workstreams to deliver the engineering strategy and roadmap that supports BT's commercial strategy through cross functional business partnering and the participation of a team that pursues innovation as well as engineering excellence.

Working in this role you will play a critical part in the operation of the QA function within a wider team of specialist engineers. In the QA team, we advocate for quality across all the phases. You will work closely with the Requirement leads/Business stakeholders, Solution Design, Engineering, Delivery & Inlife and SRE teams to ensure we deliver the requirements into production with quality as per agreed milestone.

What you’ll be doing

• Voice Quality Expert: Be an expert in the field of Voice Quality supporting multiple projects including CPE and Core equipment.
• Automation Frameworks: Maintain scalable, maintainable, and reusable automation frameworks for web, mobile, and desktop applications.
• Test Planning: Collaborate with project managers and QA leads to create test plans and define automated testing scope.
• Test Script Development: Lead the development of automated test scripts using industry-standard automation tools and programming languages (e.g., Selenium, Appium, Java, Python).
• Test Data Management: Manage test data and ensure its availability for automated testing scenarios.
• Continuous Integration/Continuous Deployment (CI/CD): Integrate automated tests into CI/CD pipelines to provide fast feedback to developers.
• Test Execution: Execute automated test suites and analyse results to identify issues and trends.
• Reporting: Create and maintain test automation reports and dashboards for tracking test coverage, pass/fail rates, and defect trends.
• Stay Current: Stay up-to-date with industry trends and best practices in test automation and incorporate them into the testing process.
• Documentation: Maintain detailed documentation of test automation processes, including test plans, test cases, and automation scripts.
• Collaboration: Collaborate with cross-functional teams to prioritize testing efforts, resolve issues, and ensure alignment with project goals.
• Drive Shift Left Automation: work across dev teams to enable reuse of automation framework and scripts with engineering teams.
• Defining, owning, continuously evolving and implementing the business unit test strategy, leading and setting the direction to keep testing at the cutting edge of new thinking and industry best practice.
• Applies technical expertise to provide direction and make commercial decisions focused on wider converged technology lifecycle, setting roadmaps and defining and driving towards a desired future state.
• Sets working standards on processes to improve and drive standardisation and repeatability of technology solutions.
• Deals with exceptions and requests for assistance with risk mitigation / issue resolution as flagged to them by their team.
• Analyses and then plans to test for major/complex functional or non-functional test projects. Allocates resources and manages these plans.

Skills and Experience

• Testing and associated experience / domain knowledge of major voice platforms and systems.
  • Writing test scopes and associated test cases and agreeing these with stakeholders.
• Technical skills in one or more of the following:
  • VoIP (SIP & RTP)
  • Voice Quality testing techniques (Objective / Subjective)
  • Echo Control
  • Voice band data (modems including Dual Tone Multi-Frequency)
  • Fax, including fax test methods.
• Knowledge of voice codecs and associated ITU-T, NICC, Openreach SIN standards relating to voice.
• Experience in one or more of the following systems:
  • Nokia HDM
  • Empirix SVMP
  • Opale Multi-DSLA
  • QualityLogic FaxLab
  • JIRA / Xray
  • Amazon Web Services – Logs Insights
• Working with wider programmes / line of business delivery organisations.
• Strong communications skills – both written and verbal.

Preferred

• Scripting (i.e. Python coding) to aid automation.
• Experience of continuous development and Continuous Improvement.
• Experience in ‘Big Data’ technologies: Kibana, Elasticsearch.
• Proficiency in modern programming languages, frameworks and tools.
• Proficiency in areas such as cloud computing, microservices architecture and containerization.
• Stakeholder Management: Owns relationships at an operational level with CFU stakeholders and technical escalation points & be able to articulate complex problems to a senior manager/director audience.
• Business Improvement: Experienced in driving performance and process improvements using data analysis and structured problem‑solving techniques to address the root cause of failures.
• Continuous Improvement: Skills in using business improvement processes to continually improve processes, anticipate risks and blockers.
• Time Management: Strong time management skills in management of own processes and a wider matrix managed team.

Benefits & Compensation

• 10% on target bonus
• BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%
• From January 2025, equal family leave: receive 18 weeks at full pay, 8 weeks at half pay and 26 weeks at the statutory rate. It’s for all parents, no matter how your family is made up.
• Enhanced women’s health support: including help with menopause symptoms, cancer screenings, period care and more.
• 25 days annual leave (not including bank holidays), increasing with service
• 24/7 private virtual GP appointments for UK colleagues
• 2 weeks carer’s leave
• World‑class training and development opportunities
• Option to join BT Shares Saving schemes

With over 175 years of heritage, BT is now the flagship business brand of BT Group. We’ve brought together our best people and capabilities into a B2B powerhouse serving 1.2 million business customers internationally.

We’re a global leader for secure connectivity and collaboration platforms for businesses of all shapes and sizes, from big household names and government departments, right through to sole traders and new start‑ups. But it’s not just the technology that matters, it’s what it can do to help them build stronger, smarter, more secure businesses.

We value diversity and inclusion and believe in making a positive impact. We connect for good by championing digital inclusion and equipping people, businesses, and communities with digital skills to thrive.

As a member of our team, you will be part of an organisation that celebrates difference, fosters innovation and provides you with opportunities to be your best. With millions of businesses relying on us daily, joining BT means you can be part of a diverse and multi-skilled team that makes a significant impact to society.

Although these roles are listed as full‑time, if you’re a job share partnership, work reduced hours, or any other way of working flexibly, please still get in touch.

We will also offer reasonable adjustments for the selection process if required, so please do not hesitate to inform us.

Studies have shown that women and people who are disabled, LGBTQ+, neurodiverse or from ethnic minority backgrounds are less likely to apply for jobs unless they meet every single qualification and criteria. We're committed to building a diverse, inclusive, and authentic workplace where everyone can be their best, so if you're excited about this role but your past experience doesn't align perfectly with every requirement on the Job Description, please apply anyway - you may just be the right candidate for this or other roles in our wider team.