Dex, a London-based AI-powered recruiter connecting top software engineers with venture-backed startups, has raised $5.3M in seed funding led by Notion Capital. The platform uses conversational AI to match candidates' ambitions and deal-breakers to high-fit roles, providing direct introductions and full transparency on compensation. This brings total funding to $8.4M, including a $3.1M pre-seed. The capital will fuel product development, team expansion, and U.S. market entry with offices in New York and San Francisco.
AI Recruiting Surges After Juicebox
The round arrives amid a funding frenzy in AI-driven recruiting. Juicebox raised $80M Series B at an $850M valuation in March 2026, tripling ARR to serve 5,000+ customers. Jack & Jill secured $20M seed in October 2025 for conversational AI job hunting agents. Dex differentiates with a voice-first agent focused exclusively on elite engineers, avoiding broad outbound sourcing.
AI Engineer Shortage Hits 3.2:1
Global demand for AI and ML engineers outstrips supply at a 3.2:1 ratio, per Second Talent research. Traditional recruiting struggles with noise, ghosting (61% of job seekers affected), and mismatched hires. Startups waste time on low-fit candidates amid rising costs in the $856B recruitment industry, as noted in Fortune coverage. Dex targets this gap by prioritizing quality over volume.
Voice AI Uncovers True Motivations
Dex's multimodal v2 platform enables engineers to chat or speak for 15-20 minutes, revealing non-negotiables beyond resumes. It scans thousands of roles at startups like ElevenLabs and Synthesia, delivering curated shortlists to companies on a 20-30% success fee model—no ATS needed. Clients including Monzo praise the fit:
“Most recruiting tools are built by people who’ve never made a hire. Paddy has built some of the best engineering teams in the world.”
—Charlie O’Driscoll, Monzo
This approach has driven $1.8M ARR from 50+ clients and 15,000+ registered engineers since late 2025.
Success Fees Align Incentives
Unlike volume-based platforms, Dex charges only on hires, fostering high-accuracy matches. Founder Paddy Lambros explains the pain:
“It was either not having the right people in the role or having the wrong people.”
—Paddy Lambros, CEO & Co-Founder
The AI leverages models from OpenAI, Anthropic, and Google for personalized coaching and interview prep.
Notion Validates HR Tech Thesis
Notion Capital, with HR tech bets like Workable and HeyJobs, led the round alongside a16z Speedrun and Concept Ventures. Notion partner Kamil Mieczakowski, who led the deal, brings SaaS scaling expertise from $1B+ AUM. Participation from OpenAI angels signals AI conviction. This cap table positions Dex for Series A after pre-seed from a16z and Concept.
Recruitment Software Grows to $5.5B
The recruitment software market stands at $3.77B in 2026, projected to reach $5.5B by 2031 at 7.85% CAGR, per Mordor Intelligence. Agentic AI trends automate matching amid talent wars. Dex rides this with UK traction before U.S. push, contrasting incumbents like LinkedIn's basic AI tools.
Ex-Unicorn Leaders Scale Talent
CEO Paddy Lambros scaled talent at unicorn Improbable (65 to 650+ employees) and Sensat ($20.5M Series B). CTO Harry Uglow holds an Imperial College AI engineering degree and built products at Atomico. VP Commercial Anthony McCabe grew GoCardless from 50 to 900 people and launched Wiz's London team. This team has hired across continents at high-growth firms.
US Offices Follow ARR Records
Post-$1.8M Q1 ARR and v2 launch, Dex plans New York and San Francisco offices. Q2 set records in introductions, pipeline, clients, and deal sizes. With 27 employees, focus shifts to multimodal enhancements and U.S. scale-ups.