Lead UI/UX Designer

Department: Creative 
Reports To: Head of Design 
Employment Type: Full-time 
Location:
Serbia / Cyprus / Malta

About SiGMA 

SiGMA Group is a global leader in iGaming, affiliate marketing, emerging technology, media, and events. We operate over 30 business verticals with more than 450 professionals across multiple international offices. SiGMA World delivers conferences, digital products, media platforms, and educational initiatives that connect and shape the global gaming industry. 

Innovation is at the heart of everything we do. As we continue to expand our digital ecosystem, we're looking for a passionate UI/UX leader who can create exceptional user experiences while mentoring a growing design team. 

Role Overview 

We're looking for an experienced Lead UI/UX Designer to lead the day-to-day UI/UX function within the Creative team, reporting directly to the Head of Design. You'll be responsible for driving the quality and consistency of user experience across SiGMA's digital products, while supporting, mentoring, and developing the UI/UX team. 

This role combines hands-on design work with team leadership, working closely with Product Managers, Developers, Marketing, and stakeholders to create intuitive, user-centred digital experiences that support both user needs and business objectives. 

Responsibilities 

• Lead and mentor the UI/UX team, providing guidance, feedback, and support to ensure high-quality design output. 

• Design intuitive user journeys, wireframes, prototypes, and polished interfaces across web and digital products. 

• Collaborate with the Head of Design to implement the overall UI/UX vision, standards, and best practices. 

• Conduct user research, usability testing, and analyse user behaviour to identify opportunities for improvement. 

• Support Conversion Rate Optimisation (CRO) initiatives through data-driven design decisions and experimentation. 

• Work closely with Product Managers, Developers, Marketing, and stakeholders throughout the product lifecycle. 

• Maintain and evolve design systems, UI libraries, and documentation to ensure consistency across products. 

• Review and provide constructive feedback on team designs to maintain high design standards. 

• Stay up to date with UI/UX trends, accessibility standards, and emerging technologies. 

• Help prioritise workloads, remove blockers, and ensure projects are delivered on time and to a high standard. 

Requirements 

• 2+ years of experience leading or mentoring a UI/UX team. 

• Strong portfolio showcasing UI/UX design, product thinking, and user-centred design processes. 

• Proven experience designing responsive web applications and digital products. 

• Strong understanding of user research, usability testing, information architecture, user flows, and interaction design. 

• Expert knowledge of Figma is essential, including component libraries, auto layout, variables, prototyping, and design systems. 

• Experience with AI-powered design workflows and vibe coding is required, with the ability to leverage modern AI tools to rapidly prototype, iterate, and deliver high-quality solutions while maintaining strong UX principles. 

• Experience using analytics and user insights to improve product performance. 

• Understanding of design systems and component-based design. 

• Excellent communication and collaboration skills. 

• Ability to work effectively within agile, cross-functional teams. 

• Strong attention to detail with a passion for creating intuitive user experiences. 

Nice to Have 

• Experience within iGaming, affiliate marketing, SaaS, digital media, or other high-traffic online platforms. 

• Experience with CRO, A/B testing, or product analytics tools. 

• Basic understanding of front-end technologies (HTML, CSS, JavaScript) and how developers implement designs. 

Why Join SiGMA? 

• Grow with us – Be part of SiGMA's global expansion and help shape the future of our digital products. 

• Free iGaming Academy access – Learn the ins and outs of the industry with exclusive course access. 

• Travel opportunities – Visit our international offices and attend industry-leading events worldwide. 

• Performance rewards – High performers are recognised through regular performance reviews and career progression opportunities. 

• Interest-free car loan after probation (T&Cs apply).