Senior Voice User Interface (VUI) Designer

Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a global leader, and create technology that helps our clients further enhance their business. We are a values-driven organization and our culture of Relentless Performance has enabled over 99% of Miratech's engagements to succeed by meeting or exceeding our scope, schedule, and/or budget objectives since our inception in 1989.

Miratech has coverage across 5 continents and operates in over 25 countries around the world. Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%.

The Voice User Interface (VUI) Designer is responsible for creating intuitive, user-centered voice experiences for IVR applications across speech and DTMF channels. This role owns the design of call flows and conversational interactions, ensuring that IVR solutions are easy to use, effective, and aligned with business goals.

The position works closely with Product Owners, IVR Engineers, Application Architects, and speech scientists. It bridges customer experience design and technical implementation by translating requirements into clear call flows, design specifications, and user stories that guide development and tuning efforts.

Responsibilities:

• Creating user-centered IVR designs for speech and DTMF applications (Dual-Tone Multi-Frequency)
• Gather and analyze business and user requirements for IVR applications
• Design end-to-end call flows for speech and DTMF-based IVR experiences
• Create design specifications and documentation for IVR implementations
• Collaborate with Product Owners to shape and refine voice user experiences
• Create user stories for developers and speech scientists to implement designs
• Support speech scientists with grammar design and tuning
• Conduct usability testing and analyze results to improve IVR performance
• Tune IVR applications to optimize recognition accuracy and user experience
• Communicate design rationale and methodology to stakeholders

• 5+ years of professional experience as a user interface designer
• Strong expertise in AI conversational voice design and development
• Strong expertise in gathering and analyzing business and user requirements for IVR applications
• Background in linguistics, cognitive psychology, behavioral sciences, or a related field
• Proven experience designing speech and DTMF (Dual-Tone Multi-Frequency) IVR applications
• Excellent communication and collaboration skills

Nice to have:

• Computer science or technical background
• Experience working closely with speech scientists or NLP teams
• Familiarity with usability testing methods for voice interfaces
• Experience designing IVR systems in large-scale or enterprise environments

We offer:

• Culture of relentless performance: join an unstoppable technology development team with a 99% project success rate and more than 30% year-over-year revenue growth. 
• Competitive pay and benefits: enjoy a comprehensive compensation and benefits package, including health insurance, language courses, and a relocation program. 
• ForeverRemote work culture: make the most of the flexibility that comes with remote work. 
• Growth mindset: reap the benefits of a range of professional development opportunities, including certification programs, mentorship and talent investment programs, internal mobility and internship opportunities. 
• Global impact: collaborate on impactful projects for top global clients and shape the future of industries. 
• Welcoming multicultural environment: be a part of a dynamic, global team and thrive in an inclusive and supportive work environment with open communication and regular team-building company social events. 
• Social sustainability values: join our sustainable business practices focused on five pillars, including IT education, community empowerment, fair operating practices, environmental sustainability, and gender equality. 

* Miratech is an equal opportunity employer and does not discriminate against any employee or applicant for employment on the basis of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity, or any other protected status under applicable law.