Summary

Vizzy helps candidates “express their work-self” and lets employers “see candidates like never before,” creating brand-aligned application experiences that surface skills and potential, not just CV keywords. As Vizzy moved up-market, enterprise buyers expected native ATS workflows. By adopting StackOne’s unified, real-time API, Vizzy switched from one-off builds to a single connection that reaches the ATS platforms their customers use, unlocking two new multinational logos in four weeks and opening marketplace-driven demand.

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In the last… four weeks, we have signed two very, very big multinational companies… and that wouldn’t have happened if we didn’t integrate with their ATSs, and we didn’t integrate seamlessly.

Chris Woodward-Jones, Co-Founder & CEO at Vizzy

About Vizzy

Founded in the UK, Vizzy is a digital CV alternative and candidate-experience platform that helps people showcase who they are, so businesses can hire for what really matters. It powers unique, brand-aligned application journeys and richer talent signals across diverse industries and roles.

The Integration Opportunity

Enterprise customers raise jobs in their ATS; StackOne pipes job details into Vizzy, where candidates complete a rich application experience (custom Q&As, evidence, etc.). When submitted, Vizzy writes back candidate profiles and shortlisting statuses to the ATS, so talent teams keep using their existing workflows with better data.

Key opportunities:

1. Breadth without the burden: “Top 12 that we needed, you guys serviced… a smorgasbord of ATSs for us to pick from.”
2. One-to-many efficiency: “We’re ultimately building one or two pipes, not 500 pipes - it was a no-brainer.”
3. New demand channels: “These integrations also welcome us to marketplaces… going after new clients by virtue of having these integrations.”

Why Vizzy Chose StackOne

Vizzy chose StackOne because one, co-designed API could cover their priority ATSs, scale to new ones on demand, and let a lean team focus on product.

Agility & Speed

“Access to multiple ATSs and a decent level of connection” through one conduit, so Vizzy isn’t repeating point-to-point builds.

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One or two pipes, not 500… and the conduit effect is so valuable.

Chris Woodward-Jones, Co-founder & CEO at Vizzy

Technical Expertise

StackOne’s immersion and developer-to-developer engagement shorten cycles and de-risk enterprise nuance.

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StackOne is an extension of Vizzy, not a provider… the people and the quality of the work are outstanding.

Chris Woodward-Jones, Co-founder & CEO at Vizzy

Focus on Core Innovation

Coverage stretches beyond ATS, HRIS and L&D, so Vizzy can expand without rebuilding plumbing.

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There’s a broad landscape… not just ATS and hiring. We’ll be leveraging the L&D side shortly.”

Chris Woodward-Jones, Co-founder & CEO at Vizzy

Onboarding Experience

Vizzy’s onboarding with StackOne felt like one team from day one - developer-to-developer, pragmatic, and fast to adapt to enterprise nuance.

• Priority coverage from a single connection, instead of juggling multiple vendor APIs.
• Co-planning new ATS adds from Vizzy’s pipeline (e.g., Bullhorn in the US; Ashby rising).
• Seamless enterprise fit: “Integrations aren’t easy… having the flex and skillset your team brings means we’re well positioned to navigate what isn’t straightforward.”

The Results

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We signed two very big multinationals… Enterprise sales is made much more straightforward for us by having those integrations.

Chris Woodward-Jones, Co-founder & CEO at Vizzy

StackOne’s unified API is already delivering measurable impact:

1. Enterprise wins, faster: Two multinational contracts in four weeks, directly enabled by ATS integrations.
2. Quality at scale: 40–80% screening reduction on high-volume campaigns, with engaged talent flowing back into the ATS via StackOne.
3. Always-on pipeline: Integrations open ATS marketplaces as a net-new demand channel for Vizzy.

Next Steps

• Launch B2C discovery features so candidates can connect, collaborate, and interact directly with employers on Vizzy.
• Deepen L&D integrations to extend the candidate journey into early-career progression and ongoing development.
• Expand ATS coverage aligned to enterprise demand (e.g., Bullhorn in the US; Ashby adoption).

StackOne’s integration layer didn’t just remove barriers, it created an opportunity for Vizzy to ship better candidate experiences, win bigger, and scale into new talent workflows.

Ready to turn integrations into your competitive edge? Book a demo.