Justin Jeff L. Barte

In-house Product Team

• One of the focal designers of Onfinity, a workspace suite built from scratch, and a companion meeting app.
• Lead end-to-end product design, from user research and wireframing to high-fidelity Figma prototypes and engineering handoff.
• Built and maintain a scalable design system that keeps every product surface visually and functionally consistent.
• Work with engineering to ship pixel-accurate features on schedule, iterating on user feedback and usability data.
• Define UX strategy and run usability reviews to improve satisfaction and task completion.

Host Digital (UK)

• Build AI agents and automation systems for email marketing since November 2025: personalization, lead nurturing and campaign sequencing across the client stack.
• Apply AI-powered workflows with modern LLM tools to cut manual overhead and improve campaign results.
• Run campaigns across email (Klaviyo, Omnisend), SMS and social, and manage Shopify stores and websites, including Happy Little Doers (UK) and The Handmade Soap Company (Ireland).
• Analyze campaign data to drive content decisions, and produce digital and print assets aligned with each brand's goals.

Plotd Creative Agency

• Founded a creative agency offering UI/UX design, branding, web development and digital marketing to local and international clients.
• Lead discovery, strategy and delivery, from brand identity and website builds to social media and campaign management.
• Personally built and shipped Tempo (time tracking), Clipd (screen recording), Stacked (live pickleball stacking), Kephalos (esports hub), Attendance Checker and more.

SUCC Multipurpose Cooperative – Silliman University

• Directed digital and print creative output, managed social media content, and designed the cooperative's website with UI/UX improvements.
• Produced pubmats, print media and event collateral for organization-wide campaigns.

Various Companies & Esports Organizations

• Worked with design teams on UI/UX projects as a junior designer: wireframing, prototyping and visual design for web and mobile.
• Delivered branding, visual identity, logos, social media kits and event collateral for local businesses and esports organizations.

Hideout Bayawan & SK Maayongtubig

• Managed social media and created visual content for a hospitality brand and a government youth organization, building consistent brand voices and driving engagement on both accounts.

Asian College Dumaguete