Thushi began her journalism career as an intern at "Rights Now" in 2010. She quickly rose through the ranks, serving as a programme officer, programme coordinator, sub-editor, and finally a programme manager. She had the overall responsibility for the content of Samabima, Sri Lanka's leading human rights newspaper launched by Rights Now. Thushi was also responsible for the reader's circle and providing analysis of the country's political developments.

She has experience working with the Movement for Free and Fair Elections as an election monitor through Mothers and Daughters of Lanka during the Northern Provincial Council elections in 2013 and Western Provincial Council elections in 2014.

Throughout her career, Thushi has held various roles, including a freelance journalist for Right to Life Human Rights Agency, a programme officer in the legal unit for Paffrel (The People's Action for Free and Fair Elections), an editor for Janabalaya, and a social media manager for Veediye Virodaya. She also served as the news and feature editor of Sri Lanka Mirror and the editor of Mirror Arts.

Thushi's leadership qualities were recognized by the late Hon. Minister Mangala Samaraweera, who appointed her as a Management Assistant in the Ministry of Finance and Media and later, the Ministry of Finance (2017-2019). This experience provided Thushi with invaluable insights into the workings of government and political landscapes.

Currently, Thushi holds the prestigious position of Deputy Editor at The Leader, a leading Sri Lankan news and media platform. She concurrently serves as the Editor of VoiceTube, showcasing her ability to manage multiple demanding roles effectively. Her dedication to journalism extends beyond her professional work, as evidenced by her active participation as a committee member of the Young Journalists Association.

Thushi is currently managing several platforms, including Voicetube.lk, and Vipakshaya.lk, Mirrorarts.lk and TheLeader.lk.

Thushi's journalistic focus extends beyond news reporting. She possesses a deep interest in social issues such as poverty, child welfare, and women's rights, both in Sri Lanka and globally. This passion fuels her commitment to using media as a tool for positive social transformation.

Thushi holds a Diploma in Journalism, along with certificates from prestigious programs like the Media Training Programme by Chongqing Municipal People's Government Mayor Scholarship Silk Road Project for Foreign Students and the UNESCO Media Fellowship Programme. Her Bachelor's degree from the University of Sri Jayewardenepura serves as a strong foundation for her academic achievements.

Thushi brings a comprehensive skillset to the table, honed through her extensive experience in media, human rights, gender issues, and elections monitoring. She is a proven leader, actively involved with the Young Journalists Association. Her exceptional fluency in Sinhala and English, coupled with excellent typing skills, makes communication effortless. Thushi is also proficient in photography and utilizes Photoshop for image editing. Beyond writing, she can draft speeches and briefing papers, while her social media expertise encompasses platforms like Facebook, Twitter, YouTube, and Instagram.

Thushi believes that a proactive approach is essential for creating a better world. She aspires to use her leadership skills and media expertise to champion truth, fairness, and justice.

Thushi isn't one to wait for a utopian dream to unfold. She's a firm believer in the power of collective action to create real, positive change in her country and, by extension, the world. Her philosophy centres on vision, proactiveness, and getting things done. This isn't about waiting for some perfect future; it's about wielding the tools she has – her leadership in the media sphere and her keen understanding of the social landscape – to actively shape a world where truth, fairness, and justice reign supreme. Thushi isn't just a journalist; she's a builder, an architect of a more just and equitable world, brick by hard-hitting story and social media campaign.

Thushi Witharana's dedication, experience, and unwavering commitment to journalistic excellence make her a valuable asset to any media organization. Her leadership qualities, combined with her passion for social issues, position her as a powerful voice for truth and justice in Sri Lanka.