Product Designer, B2B SaaS

📍 Job Overview

Job Title: Product Designer, B2B SaaS

Company: T-Mobile

Location: Philadelphia, PA, United States (On-site) | New York, NY, United States (On-site)

Job Type: Full time

Category: Product Design / User Experience (UX) Design

Date Posted: 2026-08-03T00:00:00

Experience Level: 2-5 Years

🚀 Role Summary

• Design and develop user-centric B2B SaaS products that power T-Mobile's advertising solutions, focusing on intuitive and consistent user experiences.

• Drive the entire product development lifecycle, from initial discovery and user research to the final delivery of polished design solutions.

• Collaborate closely with Product Managers, Engineers, and Lead Designers to translate user needs and business objectives into effective product designs.

• Contribute to and maintain the T-Ads design system, ensuring adherence to established patterns, principles, and guidelines across the product ecosystem.

• Conduct qualitative and quantitative user research to uncover pain points and inform data-driven design decisions.

📝 Enhancement Note: While the title is "Product Designer," the description heavily emphasizes UX/UI design responsibilities, user research, and contribution to a design system. This role is critical for the user experience of enterprise software and should be positioned as a key contributor to the B2B SaaS product strategy. The connection to T-Mobile Advertising Solutions (T-Ads) indicates a focus on a specific, high-impact business unit within a large telecommunications company.

📈 Primary Responsibilities

• Contribute to the end-to-end design lifecycle, encompassing user discovery, information architecture, user flows, wireframing, high-fidelity prototyping, and the creation of detailed design guidelines to enhance user experience solutions.

• Actively participate in the evolution of the T-Ads design system by contributing to pattern libraries, design principles, and style guides, ensuring consistency and cohesion across all product interfaces.

• Partner with Product Managers and Engineering teams to refine and enhance product requirements, effectively balancing customer needs, strategic business goals, and technical constraints.

• Conduct qualitative and quantitative user research, under the guidance of senior designers, engaging regularly with both internal stakeholders and external users to identify pain points and validate design decisions.

• Translate user insights and business requirements into clear, actionable design specifications for development teams.

• Advocate for user-centered design principles throughout the product development process, ensuring that user needs are prioritized.

• Participate in usability testing sessions, analyze feedback, and iterate on designs to optimize user flows and interaction patterns.

• Collaborate with QA teams to ensure the final product aligns with design specifications and delivers a high-quality user experience.

• Stay current with industry trends in UX/UI design, B2B SaaS, and advertising technology to bring innovative ideas and best practices to the team.

• Manage and prioritize multiple design workstreams concurrently, adapting to shifting deadlines and project requirements.

📝 Enhancement Note: The responsibilities are framed around a typical product design lifecycle but are specifically tied to an enterprise B2B SaaS context and T-Mobile's advertising solutions. Emphasis on design systems, cross-functional collaboration, and user research are key.

🎓 Skills & Qualifications

Education:

• Bachelor's Degree in Computer Science, Design, or a related field, OR an equivalent combination of education and work experience. Experience:

• 2-4 years of relevant working experience as a Product Designer, with a strong focus on B2B SaaS products. Required Skills:

• User Experience (UX) Design: Proven ability in end-to-end UX design, including discovery, information architecture (IA), interaction design, and visual design.

• Prototyping: Proficient in building interactive prototypes to effectively communicate design intent and support usability testing.

• User Flows & Wireframing: Skilled in documenting and mapping user flows and workflows, and producing wireframes to convey structure, layout, and interaction patterns.

• User Interface (UI) Design: Expertise in applying UI design patterns and interaction principles to create clear, effective, and aesthetically pleasing visual solutions.

• Design Thinking: Demonstrated application of a user-centered, iterative approach to problem identification and solution evaluation.

• Communication Skills: Excellent verbal and written communication abilities, with a proven capacity to articulate and defend design decisions to diverse audiences.

• Project Management: Strong organizational skills and the ability to prioritize and manage multiple concurrent design workstreams effectively against shifting deadlines.

• Figma Proficiency: Advanced proficiency in Figma and other modern design and collaboration tools.

• Accessibility Guidelines: Solid knowledge of accessibility standards (e.g., WCAG) and UI patterns to ensure inclusive design.

Preferred Skills:

• Enterprise/B2B Software Design: Experience designing for complex workflows, operator tools, dashboards, or data-heavy interfaces within an enterprise software environment.

• User Research: Experience conducting qualitative and quantitative user research, including user interviews, surveys, and usability testing.

• Design Systems: Experience contributing to or working within established design systems.

• Agile/Scrum Methodologies: Familiarity with Agile development processes and working within Scrum teams.

📝 Enhancement Note: The required skills list is comprehensive and directly derived from the input. The preferred skills highlight valuable experience for a B2B SaaS context, particularly in enterprise environments.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• End-to-End Case Studies: Showcase 2-3 comprehensive case studies demonstrating your involvement in the entire product design lifecycle, from problem definition and user research to solution design, prototyping, and final implementation.

• Problem-Solution Framing: Clearly articulate the user problem or business challenge addressed by each design project and how your solutions effectively solved it.

• Design Process Documentation: Detail your design process, including user flows, wireframes, interactive prototypes, and visual design mockups, to illustrate your problem-solving methodology.

• Impact and Metrics: Quantify the impact of your designs whenever possible, using metrics related to user engagement, task completion rates, conversion improvements, or efficiency gains.

• Tool Proficiency Showcase: Demonstrate your advanced proficiency with Figma and other relevant design and prototyping tools.

Process Documentation:

• Workflow Design: Highlight examples where you have mapped out complex user workflows and designed intuitive interfaces to simplify them.

• System Integration Awareness: Show an understanding of how designs integrate with broader B2B SaaS platforms and backend systems.

• Iterative Design: Present examples of design iterations based on user feedback, usability testing, or evolving business requirements.

📝 Enhancement Note: Portfolio requirements are tailored to a Product Designer role, emphasizing end-to-end case studies, process documentation, and the demonstration of impact, which are crucial for evaluating a candidate's ability to deliver effective B2B SaaS solutions.

💵 Compensation & Benefits

Salary Range: $76,000 - $137,200 per year

Bonus Target: 10% Corporate Bonus Target

Benefits:

• Comprehensive Health Coverage: Medical, dental, and vision insurance.

• Financial Wellness:

  • 401(k) plan for retirement savings.
  • Employee stock grants and an employee stock purchase plan (ESPP) for wealth building.
  • Access to free, year-round money coaches.

• Work-Life Balance:

  • Paid time off (PTO) and approximately 12 paid holidays annually.
  • Paid parental and family leave.

• Family Support:

  • Family building benefits.
  • Back-up care and enhanced family support.
  • Childcare subsidy.

• Professional Development:

  • Tuition assistance and college coaching to support continuous learning.

• Income Protection:

  • Short-term and long-term disability insurance.
  • Voluntary AD&D coverage, voluntary accident coverage, voluntary life insurance, voluntary disability insurance, and voluntary long-term care insurance.

• Additional Perks:

  • Mobile service and home internet discounts.

  • Pet insurance.

  • Access to commuter and transit programs. Working Hours:

• Standard full-time hours, estimated at 40 hours per week.

📝 Enhancement Note: The salary range and bonus target are directly provided. The benefits are extensive and reflect T-Mobile's "Total Rewards" philosophy, with specific mention of financial wellness tools and family support, which are key differentiators. The "jungle gym" career analogy suggests flexibility and opportunities for growth within the benefits structure.

🎯 Team & Company Context

🏢 Company Culture

Industry: Telecommunications, Technology, Digital Advertising Solutions

Company Size: Large Enterprise (T-Mobile is a major global telecommunications company)

Founded: 1994 (T-Mobile USA)

Team Structure:

• Product Design Team: Part of the broader T-Mobile Advertising Solutions (T-Ads) unit, likely comprising Lead Designers, Product Designers, UX Researchers, and potentially UI Designers.

• Cross-Functional Collaboration: Works closely with Product Management, Engineering, Marketing, and Business Stakeholders to deliver B2B SaaS products.

• Reporting: Reports to Lead Designers or Design Managers within the T-Ads product organization.

Methodology:

• User-Centered Design: A strong emphasis on understanding and addressing user needs through research and iterative design.

• Agile Development: Likely operates within Agile or Scrum frameworks, requiring close collaboration with engineering teams.

• Data-Driven Decision Making: Design decisions are informed by qualitative and quantitative research, as well as business objectives.

• Design System Integration: Commitment to maintaining and utilizing a robust design system for consistency and efficiency.

Company Website: https://www.t-mobile.com/

📝 Enhancement Note: T-Mobile is a major player in telecommunications, and its entry into digital advertising solutions (T-Ads) signifies a strategic growth area. The company culture emphasizes employee investment ("Total Rewards," "Un-carrier") and continuous growth. The B2B SaaS focus suggests a professional, results-oriented environment within a large corporate structure.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a mid-level Product Designer (2-4 years of experience). It involves end-to-end design responsibilities but may work under the guidance of Lead Designers for more complex strategic decisions.

Reporting Structure: The Product Designer will report to a Lead Designer or Design Manager within the T-Ads product organization. They will collaborate extensively with Product Managers and Engineers.

Operations Impact: The Product Designer's work directly influences the usability