UX Product Designer - Voice & Device Experiences

📍 Job Overview

Job Title: UX Product Designer - Voice & Device Experiences

Company: Sangoma

Location: Atlanta, Georgia, United States

Job Type: Full-Time

Category: User Experience (UX) Design / Product Design

Date Posted: March 17, 2026

Experience Level: Mid-Senior Level (3-5+ years)

Remote Status: Fully Remote (within Eastern or Central Time Zones)

🚀 Role Summary

• This role is pivotal in shaping the user experience of Sangoma’s desk phones and telephony devices, with a strong emphasis on embedded, hardware-constrained device interfaces.

• You will be responsible for the end-to-end UX design, focusing on interaction models and task-driven workflows for critical communication functions.

• The position requires a deep understanding of human-computer interaction (HCI) principles to design for speed, predictability, and low cognitive load in real-time communication scenarios.

• Collaboration with firmware engineers and product managers is key to ensuring designs are accurately implemented and align with customer needs and business outcomes.

📝 Enhancement Note: This role is specifically focused on the interaction design and workflow optimization within the firmware of physical devices, rather than purely visual UI design for web or mobile applications. The emphasis on "embedded, hardware-constrained environments" and "task-critical communication workflows" suggests a need for designers who can prioritize functionality, reliability, and efficiency over aesthetic complexity.

📈 Primary Responsibilities

• Own and execute the end-to-end user experience design for Sangoma's desk phone and telephony device firmware.

• Define and design clear, scalable interaction models and task-driven workflows for core telephony functions such as calling, transfers, conferencing, voicemail, and call handling.

• Create intuitive user experiences that prioritize speed, predictability, and minimal cognitive load for users in high-stakes communication environments.

• Develop comprehensive UX artifacts, including user flows, wireframes, detailed interaction specifications, and system behavior diagrams.

• Collaborate closely with firmware engineers to ensure accurate implementation of designs and to guarantee reliable performance in production.

• Partner with Product Management to align UX decisions with real-world usage patterns, customer requirements, and strategic business objectives.

• Proactively identify and design for edge cases, failure states, and effective recovery paths within real-time communication scenarios.

• Contribute to and leverage insights from usability testing and user feedback to iterate and improve designs.

• Drive consistency and enhance usability across Sangoma’s broader ecosystem of communication devices.

📝 Enhancement Note: The responsibilities highlight a need for designers who can translate complex technical requirements and communication protocols into user-friendly interfaces within significant hardware limitations. The focus on "real-time expectations" and "task-critical communication workflows" implies a need for meticulous attention to detail and a strong understanding of how design impacts operational efficiency for users.

🎓 Skills & Qualifications

Education: Bachelor's degree in Human-Computer Interaction (HCI), Interaction Design, UX Design, Computer Science, or a related field, or equivalent practical experience.

Experience:

• Minimum of 3 years of professional experience in UX design, user interface (UI) design, product design, or interaction design.

Required Skills:

• Demonstrated expertise in designing task-focused, workflow-driven interfaces for digital products.

• Strong theoretical and practical understanding of Human-Computer Interaction (HCI) principles, including concepts like cognitive load, affordances, error prevention, and user mental models.

• Ability to prioritize clarity, reliability, and speed of use over purely visual aesthetics when design constraints demand it.

• Excellent communication skills, with the ability to articulate UX rationale and design decisions clearly to cross-functional teams, including engineers and non-design stakeholders.

• Proficiency with industry-standard design and prototyping tools such as Figma, Sketch, Adobe XD, or similar.

• Proven experience working effectively within cross-functional Agile product development teams.

Preferred Skills:

• Prior experience designing for telephony, VoIP, Unified Communications (UCaaS), or Contact Center as a Service (CCaaS) products.

• Experience designing for constrained or non-traditional platforms, such as embedded systems, IoT devices, enterprise operational tools, or other hardware-centric products.

• Familiarity with the principles and challenges of localization and internationalization in user interface design.

• Previous exposure to conducting usability testing, user research, or field studies, especially within enterprise or operational settings.

📝 Enhancement Note: The preferred skills strongly suggest that candidates with experience in specialized or niche design areas (like embedded systems or telephony) will have a significant advantage, as these areas often involve unique design challenges and require a specific understanding of user workflows and hardware limitations.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase end-to-end UX design projects that demonstrate a clear understanding of user needs and business objectives.

• Include case studies that highlight your process for defining and refining interaction models and task flows, particularly for complex or hardware-constrained systems.

• Provide examples of how you have translated complex communication workflows into simple, intuitive user experiences.

• Present wireframes, user flows, and interaction specifications that clearly communicate your design intent and system behavior.

Process Documentation:

• Detail your methodology for user research and analysis within hardware-constrained environments.

• Illustrate your approach to designing and optimizing task-driven workflows, emphasizing efficiency and reliability.

• Explain how you ensure consistency and usability across different device interfaces and system states.

• Showcase your experience with iterative design processes, including how you incorporate feedback from usability testing and engineering reviews.

📝 Enhancement Note: For this specific role, a portfolio that features projects involving physical interfaces, embedded systems, or workflow-centric applications will be highly valued. Candidates should be prepared to discuss the specific design challenges posed by limited screen real estate, physical input methods, and real-time performance expectations.

💵 Compensation & Benefits

Salary Range: $85,000 - $95,000 per year.

Benefits:

• Comprehensive Benefit Options: Health, Vision, Dental insurance plans available.

• Disability Coverage: Long-term and Short-term Disability insurance included.

• Retirement Savings: Matching 401K program with a 100% match on 4% of salary.

• Equity Opportunity: Employee Stock Purchase Plan available after one year of service.

• Work-Life Balance: Flexible Time Off policy and paid Company Holidays.

Working Hours: Standard full-time hours (approximately 40 hours per week), with flexibility expected to accommodate project needs and collaboration across time zones.

📝 Enhancement Note: The salary range provided is specific to the United States market and the mid-to-senior level experience requested. The benefits package is competitive for a technology company, emphasizing health, financial security, and work-life balance. The requirement for candidates to be in Eastern or Central Time Zones is noted for remote work coordination.

🎯 Team & Company Context

🏢 Company Culture

Industry: Technology, specifically Unified Communications (UC), UCaaS, CCaaS, VoIP, and Hybrid Solutions. Sangoma is a provider of communication technology solutions that keep businesses connected.

Company Size: Sangoma is a publicly traded company (NASDAQ: SANG) with a significant global presence, indicating a mid-to-large size organization with established processes but also opportunities for impact.

Founded: The company has a history in telecommunications, suggesting a culture that values reliability, stability, and deep technical expertise.

Team Structure:

• The UX team likely operates within a larger Product or Engineering organization, working closely with Product Managers and Firmware/Software Engineers.

• Collaboration is expected to be cross-functional, involving teams responsible for hardware, firmware, software, and product strategy.

Methodology:

• The company operates within an Agile product development framework, requiring designers to be adaptable and iterative.

• Emphasis is placed on data-driven decision-making, user feedback, and translating business outcomes into user experience improvements.

• A focus on "building it, ship it, own it" suggests a culture that encourages ownership, accountability, and proactive problem-solving.

Company Website: https://www.sangoma.com/

📝 Enhancement Note: Sangoma's focus on enterprise-grade communication solutions means the company culture likely values reliability, security, and robust performance. The "build it, ship it, own it" slogan suggests an entrepreneurial spirit within a larger, established organization, where individuals are empowered to take ownership of their work.

📈 Career & Growth Analysis

Operations Career Level: This position is for a "UX Product Designer" with a specific focus on "Voice & Device Experiences." With 3-5+ years of experience, this is a mid-to-senior level role. It implies a significant level of autonomy and ownership over product areas, moving beyond junior design tasks to strategic contribution.

Reporting Structure: The role likely reports to a UX Design Lead, a Senior Product Manager, or potentially an Engineering Manager overseeing device firmware. The emphasis on collaboration suggests frequent interaction with firmware engineers, product managers, and potentially other UX designers.

Operations Impact: The work directly impacts the core functionality and usability of Sangoma's flagship communication devices. A well-designed user experience can lead to increased customer satisfaction, reduced support costs, improved user efficiency, and a stronger competitive position in the communications market. The designer's work is integral to the product's success and adoption.

Growth Opportunities:

• Specialization: Deepen expertise in embedded systems design, voice interaction design, or hardware-constrained UX.

• Leadership: Potentially move into a Senior UX Designer or Lead UX Designer role, mentoring junior designers and taking on larger product responsibilities.

• Cross-Functional Mobility: Gain deep understanding of firmware development, product management, and enterprise communication systems, opening doors to related roles.

• Skill Development: Opportunities to learn about new interaction paradigms, emerging communication technologies, and advanced UX research methodologies.

📝 Enhancement Note: The "mid-senior" experience level and the ownership implied by "own the end-to-end UX" suggest that growth opportunities will involve increased scope of responsibility, strategic input into product roadmaps, and potentially leading design initiatives for specific device lines or features.

🌐 Work Environment

Office Type: This is a Fully Remote position, allowing employees to work from their home office. The company is US-based, with a preference for candidates in the Eastern or Central Time Zones for easier collaboration.

Office Location(s): While the role is remote, the company has a presence in Atlanta, Georgia, United States. The remote work flexibility is a key feature of this role.

Workspace Context:

• Collaborative Environment: Expect to work closely with remote teams through digital collaboration tools (e.g., Slack, Teams, Zoom, project management software).

• Tools & Technology: Access to industry-standard design software (Figma, Sketch) and potentially internal tools for prototyping, testing, and communication.

• Operations Focus: The work environment supports focused, individual design tasks as well as collaborative sessions for brainstorming, design reviews, and technical discussions with engineers. The nature of telephony devices means a focus on reliable, uninterrupted communication tools.

Work Schedule: Standard full-time work schedule, with flexibility. The core requirement is availability for collaboration during working hours, particularly within the Eastern and Central Time Zones. This allows for efficient teamwork and timely feedback loops with engineering and product teams.

📝 Enhancement Note: While remote, the emphasis on specific time zones suggests that synchronous collaboration is highly valued. Candidates should be prepared for virtual meetings and a digital-first approach to teamwork and communication.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A brief call with HR or a recruiter to assess basic qualifications, interest, and cultural fit.

• Portfolio Review & Technical Interview: A deep dive into your portfolio with the hiring manager and/or a senior UX designer. This will focus on your process, problem-solving skills, and experience with hardware-constrained or task-driven interfaces. Be prepared to discuss specific case studies in detail.

• Cross-Functional Interview: An interview with engineering and/or product management stakeholders to assess your collaboration style, ability to communicate technical requirements, and understanding of product development cycles.

• Final Interview: Potentially a conversation with a senior leader to discuss overall fit, career aspirations, and strategic impact.

Portfolio Review Tips:

• Curate Strategically: Select 2-3 projects that best showcase your experience with interaction design, workflow optimization, and designing for constrained environments (embedded systems, hardware interfaces, enterprise tools).

• Focus on Process: Clearly articulate your design process for each project, from problem definition and research to ideation, prototyping, testing, and implementation. Use visuals to support your narrative.

• Highlight Constraints: Emphasize how you addressed specific challenges related to limited screen size, input methods, real-time performance, or complex technical requirements.

• Showcase Impact: Quantify the results of your design work where possible (e.g., improved task completion time, reduced error rates, increased user satisfaction).

• Prepare for Deep Dives: Be ready to answer detailed questions about your design decisions, trade-offs you made, and how you collaborated with engineers and stakeholders.

Challenge Preparation:

• Design Exercise: You may be given a design challenge to complete within a set timeframe. This could involve analyzing a user workflow, proposing interaction models for a new feature, or solving a usability problem for a device interface.

• Focus on Rationale: For any design exercise, clearly explain your reasoning, the assumptions you made, and the trade-offs considered.

• Communication is Key: Practice presenting your ideas concisely and persuasively, as if explaining them to a technical team.

📝 Enhancement Note: Given the specialized nature of the role, expect interviewers to probe deeply into your understanding of HCI principles applied to physical devices and complex workflows. Demonstrating a methodical approach to design, a strong grasp of technical constraints, and excellent communication skills will be critical.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Figma, Sketch (Proficiency in at least one is essential).

• Collaboration: Slack, Microsoft Teams, Zoom (for remote communication and meetings).

• Project Management: Jira, Asana, Trello (or similar tools used in Agile environments).

Analytics & Reporting:

CRM & Automation:

• Not directly applicable to the core UX design tasks for this role, but an understanding of how communication platforms integrate with CRM systems may be a plus.

📝 Enhancement Note: The core technical requirement revolves around design software proficiency. However, familiarity with the broader technology stack used in product development (like Agile tools and communication platforms) is expected for effective remote collaboration.

👥 Team Culture & Values

Operations Values:

• User-Centricity: A deep commitment to understanding and serving the needs of users, especially in critical communication scenarios.

• Reliability & Stability: Prioritizing designs that are dependable, robust, and minimize errors in real-time applications.

• Efficiency & Clarity: Designing interfaces that are intuitive, easy to use, and enable users to complete tasks quickly and effectively.

• Collaboration: A strong emphasis on teamwork, open communication, and constructive feedback across disciplines (UX, Engineering, Product).

• Ownership & Accountability: Encouraging individuals to take responsibility for their work and drive projects to successful completion.

Collaboration Style:

• Cross-Functional Integration: Designers are expected to work seamlessly with firmware engineers, product managers, and potentially QA teams.

• Iterative Design: A culture of continuous improvement through feedback loops, prototyping, and user testing.

• Knowledge Sharing: Openness to sharing insights, best practices, and design challenges within the team to foster collective learning and problem-solving.

📝 Enhancement Note: The company's emphasis on "keeping businesses connected" and the nature of telephony suggests a culture that values robust, reliable solutions. The "Build it, Ship it, Own it" mantra points towards a proactive, results-oriented team environment.

⚡ Challenges & Growth Opportunities

Challenges:

• Hardware Constraints: Designing sophisticated user experiences within the limitations of embedded systems, such as limited processing power, memory, and display capabilities.

• Real-Time Performance: Ensuring that interactions are immediate and predictable in communication-critical applications where latency can be a significant issue.

• Complexity of Telephony: Translating the intricate logic of call routing, conferencing, and voicemail management into simple, user-friendly interfaces.

• Remote Collaboration: Maintaining effective communication and collaboration with distributed teams across different time zones.

• Balancing Functionality & Usability: Striking the right balance between offering comprehensive telephony features and maintaining a simple, low-cognitive-load interface.

Learning & Development Opportunities:

• Specialized UX: Develop deep expertise in UX for embedded devices, voice interfaces, and enterprise communication systems.

• Industry Trends: Stay abreast of advancements in VoIP technology, UCaaS, and human-computer interaction for specialized platforms.

• Cross-Disciplinary Learning: Gain in-depth knowledge of firmware development processes and product strategy.

• Professional Development: Potential for attending industry conferences, workshops, or pursuing certifications related to UX design and communication technologies.

📝 Enhancement Note: The primary challenges revolve around the technical constraints of the hardware and the complexity of the communication domain. Growth opportunities will come from mastering these specific challenges and applying advanced UX principles to solve them effectively.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to design for a hardware-constrained environment. What were the key challenges, and how did you overcome them?" (Focus on process, trade-offs, and problem-solving).

• "How do you approach designing complex workflows for task-critical applications like telephony?" (Highlight your understanding of user needs, efficiency, and error prevention).

• "Walk me through a project in your portfolio where you collaborated closely with engineers. How did you ensure your designs were implemented correctly and what was the outcome?" (Emphasize communication, technical understanding, and partnership).

Company & Culture Questions:

• "What interests you about Sangoma and our focus on voice and device experiences?" (Research Sangoma's products, market position, and recent news).

• "How do you see your skills contributing to our goal of keeping businesses connected?" (Align your UX philosophy with the company's mission).

Portfolio Presentation Strategy:

• Start with the 'Why': Clearly articulate the problem you were solving and for whom.

• Show, Don't Just Tell: Use visuals (flows, wireframes, mockups, prototypes) to illustrate your design process and solutions.

• Explain Your Decisions: Justify your design choices, especially those made to address specific constraints or user needs.

• Quantify Impact: If possible, present metrics that show the positive impact of your work.

• Be Prepared for Q&A: Anticipate detailed questions about your process, challenges, and outcomes.

📝 Enhancement Note: The interview process will likely be rigorous, focusing on practical application of UX principles within a specific technical domain. Candidates should be ready to articulate their thought process clearly and demonstrate a deep understanding of how design impacts user performance and business goals in real-time communication systems.

📌 Application Steps

To apply for this UX Product Designer position:

• Submit your application through the provided link on the Workable platform.

• Tailor your Resume: Highlight experience with UX design, product design, interaction design, and any relevant work in embedded systems, hardware interfaces, or telephony. Use keywords from the job description.

• Curate Your Portfolio: Select 2-3 projects that best demonstrate your ability to design for constrained environments and complex workflows. Ensure your portfolio clearly outlines your process and impact.

• Prepare Your Case Studies: Be ready to walk through your portfolio projects in detail, explaining your design rationale, challenges, and solutions, particularly focusing on the "Voice & Device Experiences" aspect.

• Research Sangoma: Understand their product offerings, target market, and company mission to articulate your interest and fit effectively.

⚠️ Important Notice: This enhanced job description provides a comprehensive overview based on the provided details and industry standards for UX Product Design roles, particularly in specialized areas like embedded systems and communication devices. Candidates are strongly advised to review the original job posting and conduct their own research to ensure their application accurately reflects their qualifications and aligns with Sangoma's specific needs.