Senior UX/UI Designer

Cell C; Midrand; On-site; ZAR 750,000 - 1,050,000; Full time

Job summary

Cell C is seeking a Senior UX/UI Designer to lead end-to-end customer journeys across digital and assisted channels. You will own design systems, drive usability testing, and collaborate across marketing, product and engineering to optimize conversion and cost efficiency.

The role focuses on transforming service design, enabling omnichannel experiences on web, app, WhatsApp, USSD, and more, while maintaining high quality UI execution and a strong portfolio.

Qualifications

• Bachelor's degree or diploma in HCI, Interaction, UX, Multimedia or related field.
• Postgraduate qualification in UX or Design Thinking is advantageous.
• Proven experience leading UX/UI design from concept to delivery.

Responsibilities

• Lead end-to-end journey design for onboarding, upgrades, self-service and payments.
• Translate business requirements into user flows, wireframes and interactions.
• Own UI design and maintain the design system in Figma across touchpoints.
• Drive usability research, tests and data-driven iteration.
• Collaborate with marketing, product and engineering to align roadmaps.

Skills

Leadership & mentorship

Strong portfolio

Omnichannel design

UX/UI strategy

Communication

Conversion optimization

Education

Bachelor's Degree or Diploma in HCI/Interaction/UX design/Digital design

Postgraduate UX/Design Thinking advantageous

Tools

Figma

Adobe Creative Suite

Jira

ClickUP

Monday.com

Job description

At Cell C, we are not just a telecommunications company; we are a people-centric and consumer-focused organization committed to delivering exceptional experiences to our customers. In line with our dedication to customer-centricity, we are seeking a Senior UX/UI Designer to join our dynamic team of #Unstoppables.

Purpose of the Job:

Cell C is a leading telecommunications company in South Africa, committed to providing innovative solutions and exceptional service to our consumers (B2C) and business customers (B2B). Cell C is positioned as a Spirited Disruptor and values integrity, transparency, honesty, and simplicity.

We are seeking a talented and experienced Senior UX/UI Designer to join our dynamic team. The Senior UX/UI Designer is accountable for designing and optimising end-to-end customer experiences across digital and assisted channels, ensuring seamless, intuitive, and commercially effective interactions that drive conversion, customer satisfaction, and cost efficiency.

The role is transformational in nature and will lead the acceleration required for service design to become a leading competence within Cell C.

Main Responsibilities:

Experience and Journey Design

• Lead the design and optimisation of end-to-end customer journeys e.g. onboarding, upgrades, self-service, payment
• Translate business requirements into user flows, wireframes, and interaction models
• Simplify complex processes e.g. Interception of Communications Act registration (RICA), sim swap, credit vetting, plan selection, provisioning
• Conceptualise and enhance customer experience across the full digital lifecycle, with focus on conversion and attribution
• Enable personalized, omnichannel experiences across web, app, WhatsApp, USSD, and assisted channels

Interface Design and Design Systems

• Lead the UI design process from concept to development hand-off
• Own, maintain, and evolve the digital design system in Figma across all touchpoints
• Act as design authority and quality gatekeeper for component creation, updates, deprecation, consistency, and quality assurance across all outputs
• Design high-quality, responsive interfaces for complex products and pricing structures
• Ensure design-to-development alignment, acting as primary interface into development teams for components and template rollout

Research, Testing and Continuous Optimisation

• Drive and support user research and testing (e.g. usability testing, focus groups, surveys)
• Translate product vision into validated design solutions through prototyping and iterative testing
• Analyze user behaviour using tools such as Google Analytics 4 and heat-mapping platforms
• Identify and resolve UX/UI issues and friction points across digital platforms
• Optimise conversion funnels, content, and journeys across owned channels

Delivery, Operations and Performance

• Manage end-to-end design delivery, ensuring timeous execution across internal teams and agency partners
Oversee website and mobile platform design operations, including campaign content implementation, functional component design, and conversion tracking alignment
• Work closely with development teams to ensure on-brand execution, accurate implementation, and performance scalability
Produce high-quality outputs including journey flows, prototypes, storyboards, and visual designs

Leadership, Collaboration and Domain Influence

• Provide design leadership and mentorship to designers and cross-functional team members
• Act as final design approval authority to ensure consistency and quality across all digital touchpoints
• Collaborate with marketing, brand, commercial, and product teams to shape roadmaps based on UX insights
• Facilitate design workshops and stakeholder alignment sessions
• Stay informed on industry trends and competitor benchmarks to maintain a competitive edge
• Provide thought leadership across the organisation, driving digital experience excellence and commercial outcomes

Minimum Qualification

• Bachelor's Degree or Diploma (NQF Level 6–7) in one of the following:
• Human-Computer Interaction (HCI)
• Interaction Design
• UX Design
• Multimedia or Digital Design
• Graphic Design
• A postgraduate qualification in UX, Design Thinking, or a related field is advantageous

Experience

• 6–10+ years of experience in UX/UI or Product Design at a lead level
• Strong portfolio demonstrating end-to-end journey design and high-quality UI execution
• Proven experience managing design systems at scale
• Proficiency in Figma, Adobe Creative Suite, and modern design tooling
• Experience with workflow systems such as Jira, ClickUP and Monday.com is an advantage
• Strong understanding of digital analytics, conversion optimisation, and omnichannel ecosystems
• Experience in complex, regulated industries (telecommunications, banking, e-commerce) preferred

"Cell C is an equal opportunities employer, committed to fostering a diverse and inclusive workplace where all employees are treated fairly and with respect, regardless of race, gender, age, disability, or any other protected characteristic."