I’m known in my circle as a creative doer and natural organizer – someone who thinks ahead, takes initiative, and inspires with fresh ideas. Spontaneity, humor, and team spirit are key traits that define me. At work, I discovered my passion for video production and content creation – a creative playground where I continue to grow. In my free time, I recharge at the gym, with friends and family, or out surfing – always on the lookout for the next wave and new inspiration.

Leonie Mahner

I’m known in my circle as a creative doer and natural organizer – someone who thinks ahead, takes initiative, and inspires with fresh ideas. Spontaneity, humor, and team spirit are key traits that define me. At work, I discovered my passion for video production and content creation – a creative playground where I continue to grow. In my free time, I recharge at the gym, with friends and family, or out surfing – always on the lookout for the next wave and new inspiration.

Available to hire

I’m known in my circle as a creative doer and natural organizer – someone who thinks ahead, takes initiative, and inspires with fresh ideas. Spontaneity, humor, and team spirit are key traits that define me. At work, I discovered my passion for video production and content creation – a creative playground where I continue to grow. In my free time, I recharge at the gym, with friends and family, or out surfing – always on the lookout for the next wave and new inspiration.

See more

Language

English
Fluent
German
Fluent

Work Experience

Real Estate Portfolio Manager at CSL Immobilien AG
December 31, 2024 - September 15, 2025
Managed a real estate portfolio for a large institutional owner and created content for the portfolio.
Real Estate Administrator at IT3 Immobilien AG
December 31, 2022 - September 15, 2025
Took on the role of administrator in a property management team.
Executive Assistant & Marketing Manager at PBP AG Engineering
January 1, 2024 - Present
Executive Assistant and Marketing Manager; Maintained all social media channels and managed the website.
Intern – HR Marketing & Content Creation at Sunrise
August 15, 2025 - September 15, 2025
Intern – HR Marketing & Content Creation; launched the employer branding campaign; designed external communications; developed blog and video formats; content planning and internal communications; organized employer branding measures; career website development in Phenom; SEO for career pages; storytelling and copywriting; production of video content and campaign photography; coordination of post‑production for video content.
Portfolio Administrator (Real Estate) at CSL Immobilien AG
December 31, 2024 - September 15, 2025
Managed a real estate portfolio for a large institutional owner and contributed content creation for the portfolio. Coordinated administrative tasks, supported property operations, and collaborated with stakeholders to present portfolio performance.
Administrator (Property Management) at IT3 Immobilien AG
December 31, 2022 - September 15, 2025
Took on the role of administrator in a property management team, handling administrative duties, tenant communications, and process optimization within the property portfolio.
Executive Assistant & Marketing Manager at PBP AG Engineering
January 1, 2024 - Present
Supported executive leadership and managed marketing initiatives, including social media channels and website upkeep to strengthen brand presence.
Intern – HR Marketing & Content Creation at Sunrise LLC
August 15, 2025 - September 15, 2025
Supported employer branding and content creation efforts, contributed to the career website and blog, and helped plan campaigns and events. Served as a liaison for internal communications and participated in a variety of branding activities.
Portfolio Manager / Property Management at CSL Immobilien AG
December 31, 2024 - September 15, 2025
Managed a real estate portfolio for a large institutional owner and contributed content creation for the portfolio.
Property Management Administrator at IT3 Immobilien AG
January 1, 2022 - September 15, 2025
Took on the role of administrator in a property management team.
Executive Assistant & Marketing Manager at PBP AG Engineering
January 1, 2024 - Present
Executive assistant and marketing manager; maintained all social media channels and managed the website.
Intern – HR Marketing & Content Creation at Sunrise
August 15, 2025 - September 15, 2025
Intern in the People Attraction department; supported employer branding campaigns, created external communications, developed blog and video formats, planned content, and contributed to CRM/CMS activities and career website development.
Administrator in Property Management Team at IT3 Immobilien AG
December 31, 2022 - September 15, 2025
Took on the role of administrator in a property management team; managed real estate portfolio for a large institutional owner and contributed content creation for the portfolio.
Executive Assistant & Marketing Manager at PBP AG Engineering
January 1, 2024 - Present
Executive assistant and marketing lead; maintained all social media channels and the company website.
Intern – HR Marketing & Content Creation at Sunrise LLC
August 15, 2025 - September 15, 2025
Launched employer branding campaigns, developed blog and video formats, oversaw content planning, CMS/CRM testing and optimization, and produced authentic photo and video material.
Portfolio Manager / Real Estate Portfolio Manager at CSL Immobilien AG
December 31, 2024 - September 15, 2025
Managed a real estate portfolio for a large institutional owner and contributed content creation for portfolio materials.
Administrator in a Property Management Team at IT3 Immobilien AG
December 31, 2022 - September 15, 2025
Took on the role of administrator in a property management team, supporting operations and client relations.
Executive Assistant & Marketing Manager at PBP AG Engineering
January 1, 2024 - Present
Executive assistant with responsibility for marketing; maintained social media channels and the website.
Intern – HR Marketing & Content Creation at Sunrise LLC
August 15, 2025 - September 15, 2025
Gained experience in employer branding and content creation; led campaigns, CRM work, blog/video formats, SEO, and career website development.
Administrator at IT3 Immobilien AG
December 31, 2022 - September 15, 2025
Took on the role of administrator in a property management team, supporting daily operations, coordinating communications with tenants and vendors, and ensuring smooth administrative processes.
Portfolio Administrator & Content Creator at CSL Immobilien AG
December 31, 2024 - September 15, 2025
Managed a real estate portfolio for a large institutional owner and created content to showcase the portfolio.
Executive Assistant & Marketing Manager at PBP AG Engineering
January 1, 2024 - Present
Supported executive functions and managed marketing activities, including maintaining social media channels and the company website.
Intern – HR Marketing & Content Creation at Sunrise LLC
August 15, 2025 - September 15, 2025
Gained experience in employer branding and content creation; responsibilities included campaign design, blog/video formats, content planning, CRM website work (Phenom), and event support.
Portfolio Manager, Real Estate at CSL Immobilien AG
January 1, 2024 - September 15, 2025
Managed a real estate portfolio for a large institutional owner and produced content to accompany portfolio updates.
Administrator, Property Management at IT3 Immobilien AG
January 1, 2022 - September 15, 2025
Took on the role of administrator in a property management team, supporting operations and tenant communications.
Executive Assistant & Marketing Manager at PBP AG Engineering
January 1, 2024 - Present
Supported executive leadership and led marketing efforts, including maintenance of social media channels and the company website.
Intern – HR Marketing & Content Creation at Sunrise
August 15, 2025 - September 15, 2025
Launched the employer branding campaign, designed external communications, contributed to the Real Challenger Talk concept, developed blog and video formats, planned content, coordinated internal communications, organized events, and contributed to the career website and CRM/CMS improvements.
Intern – HR Marketing & Content Creation at Sunrise
August 15, 2025 - September 15, 2025
Intern in HR Marketing & Content Creation; supported the launch of employer branding campaigns, designed external communications, helped develop video formats, created blog and video content to showcase career paths, managed content planning and internal communications, organized employer branding events, contributed to the new career website (Phenom) from conception to implementation, assisted with CMS/wireframes, SEO, copywriting, and production of authentic photo/video material; acted as internal contact for employer branding topics.
Executive Assistant & Marketing Manager at PBP AG Engineering
January 1, 2024 - Present
Executive assistant and marketing manager; provided executive support and led marketing activities; maintained all social media channels and website.
Real Estate Portfolio Manager & Content Creator at CSL Immobilien AG
January 1, 2024 - September 15, 2025
Managed a real estate portfolio for a large institutional owner and produced content for the portfolio.
Administrator (Property Management) at IT3 Immobilien AG
January 1, 2022 - September 15, 2025
Took on the role of administrator in a property management team.
Administrator in Property Management at IT3 Immobilien AG
December 31, 2022 - September 15, 2025
Took on the role of administrator in a property management team.
Portfolio Manager & Content Creator at CSL Immobilien AG
December 31, 2024 - September 15, 2025
Managed a real estate portfolio for a large institutional owner and produced content for the portfolio.
Executive Assistant & Marketing Manager at PBP AG Engineering
January 1, 2024 - Present
Executive assistant and responsible for marketing. Maintained all social media channels and managed the website.
HR Marketing & Content Creation at Sunrise
December 31, 2025 - September 15, 2025
Gained experience in employer branding and content creation.
Administrator at IT3 Immobilien AG
December 31, 2022 - September 15, 2025
Handled administration within a property management team, supporting leases, tenant communications, and file management; contributed to streamlining processes and improving efficiency.
Portfolio Manager & Content Creator at CSL Immobilien AG
December 31, 2024 - September 15, 2025
Managed a real estate portfolio for a large institutional owner and produced content to showcase the portfolio.
Executive Assistant & Marketing Manager at PBP AG Engineering
December 31, 2024 - September 15, 2025
Managed marketing activities and internal/external communications; maintained all social media channels and the company website.
Intern – HR Marketing & Content Creation at Sunrise
August 15, 2025 - September 15, 2025
Prepared the launch of the employer branding campaign, designed external communications, contributed to the Real Challenger Talk video concept, developed new blog and video formats, planned and executed employer branding measures, and supported the career website and CMS workflows.
Portfolio Manager at CSL Immobilien AG
August 15, 2024 - August 15, 2024
I managed a real estate portfolio for a large institutional owner and did content creation for my portfolio.
Administrator in Property Management Team at IT3 Immobilien AG
January 1, 2022 - January 1, 2022
Took on the role of administrator in a property management team.
Executive Assistant & Marketing Manager at PBP AG Engineering
January 1, 2024 - November 11, 2025
Executive assistant and marketing responsibilities, including managing social media channels and the website.
Intern – HR Marketing & Content Creation at Sunrise
August 15, 2025 - August 15, 2025
Intern in HR Marketing & Content Creation; launched employer branding campaigns, created external communications, and supported content planning and website projects.
World Traveler / World Trip
January 1, 2023 - January 1, 2023
7-month world trip with focus on personal development and exploring video production and content ideas.
Real Estate Portfolio Manager / Content Creator at CSL Immobilien AG
December 31, 2024 - December 31, 2024
Managed real estate portfolio for a large institutional owner and performed content creation for the portfolio.
HR Marketing & Content Creation at Sunrise
December 31, 2025 - December 31, 2025
Gained experience in employer branding and content creation for Sunrise.

Education

Vocational Maturity in Design & Art at BMS Zurich
January 1, 2019 - December 31, 2020
Real Estate Management at IT3 Immobilien AG
January 1, 2020 - December 31, 2022
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - September 15, 2025
Commercial Employee EFZ at EFZ Training
January 1, 2014 - January 1, 2014
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - September 15, 2025
Real Estate Management at BMS Zurich
January 1, 2019 - December 31, 2020
Real Estate Management at BMS Zurich
January 1, 2019 - January 1, 2020
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - September 15, 2025
Commercial Employee EFZ at BMS Zurich
January 1, 2014 - December 31, 2014
Vocational Maturity in Design & Art at BMS Zurich
January 1, 2019 - December 31, 2020
Real Estate Management at IT3 Immobilien AG
January 1, 2020 - December 31, 2022
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - September 15, 2025
Real Estate Management at BMS Zurich
January 1, 2019 - December 31, 2020
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - September 15, 2025
Vocational Maturity in Design & Art at BMS Zurich
January 1, 2019 - December 31, 2020
Real Estate Management at IT3 Immobilien AG
January 1, 2020 - December 31, 2022
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - September 15, 2025
Real Estate Management at BMS Zurich
January 1, 2019 - January 1, 2020
Real Estate Management at IT3 Immobilien AG
January 1, 2020 - January 1, 2022
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - September 15, 2025
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - September 15, 2025
Real Estate Management at IT3 Immobilien AG
January 1, 2020 - January 1, 2022
Commercial Employee EFZ at Commercial EFZ
January 11, 2030 - January 1, 2014
Vocational Maturity in Design & Art at BMS Zurich
January 1, 2019 - December 31, 2020
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - September 15, 2025
Real Estate Management at BMS Zurich
January 1, 2019 - December 31, 2020
Real Estate Management at BMS Zurich
January 1, 2019 - January 1, 2020
Real Estate Management at IT3 Immobilien AG
January 1, 2020 - January 1, 2022
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - November 11, 2025
Vocational Maturity in Design & Art at BMS Zurich
January 1, 2019 - December 31, 2020
Real Estate Management IT3 at IT3 Immobilien AG
January 1, 2020 - December 31, 2022
Bachelor of Arts in Media Design at IU International University
January 1, 2024 - November 11, 2025

Qualifications

Commercial Employee EFZ
January 1, 2014 - September 15, 2025
Commercial Employee EFZ
January 1, 2014 - September 15, 2025
Vocational Maturity in Design & Art
January 1, 2019 - December 31, 2020
EFZ Commercial Employee
January 1, 2014 - January 1, 2014
Commercial Employee EFZ
January 1, 2014 - September 15, 2025
Commercial Employee EFZ
January 1, 2014 - September 15, 2025
Bachelor of Arts in Media Design
January 1, 2024 - September 15, 2025
Commercial Employee EFZ
January 1, 2014 - December 31, 2014
Vocational Maturity in Design & Art
January 1, 2019 - December 31, 2020
Real Estate Management
January 1, 2020 - December 31, 2022
Bachelor of Arts in Media Design
January 1, 2024 - September 15, 2025
Commercial Employee EFZ
January 1, 2014 - September 15, 2025
Commercial Employee EFZ
January 1, 2014 - September 15, 2025
Bachelor of Arts in Media Design
January 1, 2024 - September 15, 2025
EFZ Commercial Employee
January 1, 2014 - September 15, 2025
EFZ Commercial Employee
January 1, 2014 - September 15, 2025
Vocational Maturity in Design & Art
January 1, 2019 - December 31, 2020
Commercial Employee EFZ
January 11, 2030 - January 1, 2014
Commercial Employee EFZ
January 11, 2030 - January 1, 2014
EFZ Commercial Employee Training
January 1, 2014 - December 31, 2014
EFZ Commercial Employee Training
January 1, 2014 - December 31, 2014
Vocational Maturity in Design & Art
January 1, 2019 - December 31, 2020
Bachelor of Arts in Media Design
January 1, 2024 - September 15, 2025
Commercial Employee EFZ
January 1, 2014 - January 1, 2014
Commercial Employee EFZ
January 1, 2014 - January 1, 2014
Real Estate Management
January 1, 2019 - December 31, 2020
Commercial Employee EFZ
January 11, 2030 - January 1, 2014
Commercial Employee EFZ
January 11, 2030 - January 1, 2014
Commercial Employee EFZ
January 1, 2014 - December 31, 2014
Commercial Employee EFZ
January 1, 2014 - December 31, 2014
Vocational Maturity in Design & Art
January 1, 2019 - December 31, 2020

Industry Experience

Real Estate & Construction, Media & Entertainment, Professional Services, Software & Internet, Education