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Ilija Marković

@ilijamarkovi

Customer operations and process improvement at BUUK Infrastructure, designing self-service systems and improving how customer support works.

United Kingdom
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At BUUK Infrastructure, I drive operational improvement from identifying opportunities through testing and implementation, working with Quality and Systems teams to turn recurring problems into practical improvements. I design troubleshooting and self-service systems, using testing and operational feedback to find and close gaps.

I map customer journeys and run workshops with agents and specialist teams to identify where service breaks down. I also work with AI tools that analyse calls and surface trends, and support compliance with Ofcom regulations and the Priority Services Register.

Earlier, at John Lewis, I created and implemented systems to track office workflow and planned weekly and monthly schedules. Across my customer support and operations career, I’ve coached and onboarded 100+ new starters.

Experience

Work history, roles, and key accomplishments

Hyperoptic logoHY

Billing Assistant

Hyperoptic

May 2020 - Nov 2020 (6 months)

Supported customers with billing inquiries and guided them through installation and activation. Resolved escalated billing issues and maintained high customer satisfaction.

Education

Degrees, certifications, and relevant coursework

The Royal Welsh College of Music and Drama logoTD

The Royal Welsh College of Music and Drama

Acting & Performance Training, Acting & Performance

2013 - 2016

Completed Acting & Performance Training at The Royal Welsh College of Music and Drama from 2013 to 2016.

SI

6sigmastudy

Lean Six Sigma Yellow Belt, Lean Six Sigma

Earned the Lean Six Sigma Yellow Belt certification from 6sigmastudy in September 2026.

SI

Six Sigma Online; Aveta Business Institute

Lean Six Sigma White Belt, Lean Six Sigma

Earned the Lean Six Sigma White Belt certification from Six Sigma Online; Aveta Business Institute in August 2026.

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