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Sigma Group

Marketing and advertising programs delivering results

UI/UX Designer

Full-TimeUpdated on 10/15/2026
No salary listed
Mid
Belgrade, Serbia
Hybrid
Product & Experience DesignProduct Design

About the job

Requirements
  • At least 3 years of experience in UI/UX design, preferably in a fast-paced digital environment.
  • A strong portfolio demonstrating website design and user journey optimization.
  • Proficiency in design and prototyping tools such as Figma, Adobe XD, or similar tools.
  • A solid understanding of user experience principles, usability, accessibility, and responsive design.
  • Ability to work closely with graphic designers, developers, and marketing teams.
  • Experience working on content-driven or event-based websites is an advantage.
  • Fluency in English.
Responsibilities
  • Design and optimize user interfaces and user journeys across multiple websites, including AIBC, AGS, and related platforms.
  • Collaborate closely with the Graphic Design team to ensure visual consistency and timely implementation of website updates.
  • Translate business and marketing requirements into intuitive and engaging digital experiences.
  • Create wireframes, mockups, prototypes, and user flows for new features and improvements.
  • Ensure responsive design and seamless user experience across desktop and mobile platforms.
  • Work closely with management and stakeholders to align on priorities and deliverables.
  • Support continuous website improvements, campaign launches, and landing page updates.
  • Contribute to maintaining and evolving design systems and user interface standards.
  • Collaborate with distributed user experience team members across different offices to ensure operational continuity and coverage.
Desired Qualifications
  • Experience working on content-driven or event-based websites.

About the company

Sigma Group creates marketing and advertising programs that connect companies with their customers to drive business results. They design and execute integrated campaigns for consumer packaged goods, retail, and technology brands, using creative concepts, media planning, and activation to engage audiences and boost sales. Their approach stands out through recognition and scale: AdWeek named them the #1 ranked agency in New Jersey, AdAge named them the top small agency in the Northeast, and they have appeared on Inc. Magazine’s Fastest Growing 5,000 list for five consecutive years, reflecting a track record of growth and award-winning work. The company aims to continue growing as a leading regional agency by delivering measurable outcomes for clients through high-quality campaigns and strategic partnerships.

Company Size

51-200

Company Stage

N/A

Total Funding

N/A

Headquarters

Saddle River, New Jersey

Founded

1986

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Simplify's Take

What believers are saying

  • Sigma Technology won a four-year defense IT framework starting May 1, 2026.
  • Sigma Technology expanded cybersecurity with Clavister and new AI-enabled service launches in 2026.
  • Sigma Technology's 2026 awards and new leadership hires strengthen hiring and client credibility.

What critics are saying

  • Revelio shows Sigma Technology Group headcount fell 23.8% since 2023, signaling churn.
  • Sigma Technology's 2026 growth depends on public-sector contracts, exposing renewal concentration risk.
  • Competitors can copy consulting and compliance offerings before 2027 battery-passport deadlines.

What makes Sigma Group unique

  • Sigma Technology won Digg's four-year IT consulting deal worth SEK 650 million in 2026.
  • Sigma Technology launched Origo Product Cloud for EU Digital Battery Passport compliance in 2026.
  • Sigma Technology kept Platinum Best Managed Company status for eight consecutive years in 2026.

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Benefits

Performance Bonus

Mentorship Program

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