Available to hire
I’m Sithira Dewasurendra, a Presentation Specialist and Graphic Designer with 9+ years turning complex ideas into visually compelling pitch decks, board packs, and marketing collateral for C-suite leaders, startups, and global SMEs. I blend graphic design, visual storytelling, and data-driven narrative structure to influence funding, sales, and strategic decisions.
I excel at leading cross-functional design teams, standardizing brand-aligned slide libraries, and delivering 90+ client wins across North America and Europe. My goal is to translate insights into persuasive visuals that accelerate growth and align stakeholders.
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Language
English
Advanced
Work Experience
Chief Growth Officer at AION – Tech Group
October 1, 2023 - October 1, 2024Crafted executive-level investor and board decks used to secure expansion funding and new cybersecurity training partnerships. Standardised slide templates and brand assets, cutting deck-production time by 40%. Partnered with founders to spin up new SaaS and training verticals; produced launch presentations and sales kits for each. Guided design team on motion graphics and data-visual workstreams.
Founder & Managing Partner at CoGenius – Creative & Digital Agency
February 1, 2024 - October 1, 2024Led end-to-end creation of pitch decks, sales enablement slides, and social media visuals for 45+ SME clients in North America & Europe, fueling client acquisition growth. Directed a multidisciplinary team (design, copy, motion) delivering brand-consistent collateral across print and digital channels. Designed data-rich templates enabling consultants to self-serve future presentations. Drove US go-to-market strategy with visually led outbound campaigns.
Director – Business & Digital Marketing at Horizon Capital HR Consultancy
April 1, 2023 - September 1, 2023Produced corporate profiles, service brochures, and investor packs that underpinned new market entries. Managed all organisational documents (contracts, onboarding kits) ensuring brand and formatting consistency. Created still & animated social graphics, elevating follower engagement by 60%.
Head of Business Development at AION
October 1, 2020 - October 1, 2023Built cybersecurity managed-service pitch materials adopted across regional sales teams. Established Aion Campus; delivered slide decks for professional education programs in cybersecurity, AI & data science.
Business Development Executive at Sierra Construction Ltd.
April 1, 2018 - October 1, 2020Supported CMO with partner proposals and client presentations for telecom and IoT projects.
Freelance Graphic & Presentation Designer
January 1, 2015 - PresentDesigned marketing and investor decks for tech startups, FMCG brands, and NGOs across APAC, MENA & North America. Ghost-designed keynote speeches and award-ceremony visuals, praised for clarity and impact.
Education
Master of International Business at Monash University
January 11, 2030 - January 1, 2017Bachelor of Business & Commerce at Monash University
January 11, 2030 - January 1, 2015Qualifications
Toastmasters Competent Communicator (CC)
January 1, 2014 - December 1, 2025Certificate in Business Accounting – CIMA (UK)
January 1, 2013 - December 1, 2025IELTS Overall Band 7.0
January 1, 2011 - December 1, 2025Industry Experience
Software & Internet, Professional Services, Media & Entertainment, Education, Computers & Electronics
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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