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Who is Zealynx? Why DeFi teams choose our top-tier smart contract audits
Zealynx

Who is Zealynx? Why DeFi teams choose our top-tier smart contract audits

Carlos (Bloqarl)
Carlos (Bloqarl)
7 min
Zealynx is a top-tier, founder-led blockchain security firm based in Poland, led by Spanish security expert Carlos (“Bloqarl”). Zealynx helps DeFi and Web3 teams secure every layer of their projects, from smart contracts to dApps and infrastructure audits. We have delivered 33+ audits across 30+ protocols, including Lido Finance, and Carlos was hired to author the official Uniswap V4 documentation after winning the Uniswap Hook Hackathon. Senior-level expertise across audits, penetration testing, AI security, and hands-on support tailored to your needs.

What makes Zealynx different?

  • Founder-Led Expertise: Every audit is personally managed by Carlos, a Spanish blockchain security specialist with over a decade of experience. You get senior-level attention and direct communication, no middlemen.
  • Transparent, Competitive Pricing: Zealynx is known for clear, competitive rates, making top-tier smart contract auditing accessible to teams of all sizes.
  • Recognized and Trusted: With a proven record and industry recognition, Zealynx is a trusted partner for DeFi projects seeking great value and reliable results.

Our core services

Our clients

Zealynx has provided security audits and consulting for respected DeFi projects and companies, including:
Lido Finance, BadgerDAO, Aurora, Ribbon, Glif, Inverter Network, Mangrove, Bastion Wallet, Microchains (Fuel), Matchain, Ample Protocol, Paymatic, Golden Grid, Fair Labs, Monadex, Paragon, TokenTable, Neptun Finance, Wedefin, Yadacoin, Dripster, and Ipal Network.
The full client list, logos, and audit case studies are on the Zealynx portfolio.

Partnerships & industry recognition

  • Immunefi Audit Program (official partner)
  • Cyfrin
  • Pashov Audit Group
  • Sherlock
  • Shieldify
  • Codespect

Why clients trust Zealynx

“Carlos is a test writing machine, he’s helped on complex audits with tricky integrations and always delivers.” Cyfrin
“Thorough, detail-oriented, and always proactive in communication. Zealynx helped us identify and resolve critical issues before they became problems.” Ribbon Protocol
“Introduced us to several tools and security best practices we hadn’t been using.” GLIF
“Identified vulnerabilities I hadn’t considered. Delivered on a tight timeline with excellent communication.” Paragon
“Depth and quality of audit impressive. Quickly understood the architecture and clearly distinguished what mattered.” Fair Labs
“Fast turnaround, clear reports, and actionable feedback. We felt supported and informed throughout the entire process.” Wedefin
“A pleasure to work with, Zealynx combines deep technical knowledge with a practical mindset, helping us ship secure code with confidence.” Shieldify

Results & ROI: What DeFi teams gain from a Zealynx audit

Choosing Zealynx isn’t just about checking a security box. It’s about maximizing your project’s success and reputation. Here’s what our clients consistently achieve:
  • Fewer security incidents: Teams audited by Zealynx avoid costly exploits and downtime, protecting user funds and community trust.
  • Faster exchange listings & integrations: Our clear, thorough audit reports help projects get listed on major DEXs/CEXs and integrated with partners more quickly.
  • Investor & user confidence: A Zealynx audit signals credibility, making it easier to attract investors and users, even if you’re not a household name (yet).
  • Actionable improvements: We don’t just point out problems. We help you fix them, so your code is production-ready and future-proof.
  • Long-term support: Need a quick re-audit after changes? We’re here to help, keeping your project secure as you grow.

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The result: More growth, fewer headaches, and a stronger position in the DeFi ecosystem.

Notable achievements

  • The DAO Fund ETH Security Researcher Badge: Carlos was personally recognized by The DAO Fund as an ETH Security Researcher, one of approximately 200 security badges issued globally as part of Ethereum’s security funding initiative.
  • Uniswap Hook Incubator Hackathon Winner: 1st place at UHI2 (September 2024) with a Mangrove grant for MVP development. Project repo: Risk-Neutral Hook MVP.
  • Official Uniswap V4 Documentation Author: After winning the hackathon, Carlos was hired to author the official Uniswap V4 documentation.
  • Top 5 in Cyfrin CodeHawks: Public audit competition placement, methodology written up here.
  • Immunefi Partner: Go-to auditor for Immunefi’s audit program.
  • Featured by Tier-1 security firms: Cyfrin success story and the Immunefi interview on YouTube.

Community leadership

Beyond shipping audits, Zealynx has built a meaningful presence in the Web3 security community over the last four years. This matters because it’s evidence the firm’s expertise is independently recognized, not just self-claimed.

Beyond audits: Zealynx Audit Grants

Most early-stage protocols know they need a security audit but don’t have the budget for one until they raise. The Zealynx Audit Grants program closes that gap by subsidizing audits for serious teams, awarded on a 100-point evaluation across protocol merit, product engagement, and community sharing.
  • Core Grant: 100% subsidy, full audit coverage at no cost to the recipient (typical value up to $32,000).
  • Growth Grant: 50% subsidy (typical value up to $16,000).
  • Builder Grant: 25% subsidy (typical value up to $8,000).
Each round awards one Core, two Growth, and multiple Builder grants. Eligible protocols include early-stage DeFi, GameFi, RWA, and infrastructure projects with verifiable team identity. Application criteria, supported chains, and submission details: grants.zealynx.io.

Beyond audits: Zealynx Academy

Zealynx Academy is our free, hands-on educational platform for Web3 builders and founders. Rather than passive video content, the Academy teaches by making learners rebuild real protocols line by line. Today the curriculum includes a complete Uniswap V2 implementation with 207 automated tests, Compound V2, and a growing library of protocol modules. The Shadow Arena lets developers audit forks of real past audit-contest protocols. The eMBA track covers the founder side: tokenomics, fundraising, governance, and go-to-market.
Quality is independently validated. Zealynx Academy was approved into the Ethereum Security QF Round on Giveth (Round 16), with eligibility defined by the Ethereum Foundation and a 500 ETH (~1M+)matchingpoolfundedby∗∗TheDAOSecurityFund∗∗,thesame1M+) matching pool funded by **The DAO Security Fund**, the same 220M fund that backs Trail of Bits, OpenZeppelin, and SEAL 911. Round curators include Vitalik Buterin (Ethereum Foundation), Taylor Monahan (MetaMask), Jordi Baylina, pcaversaccio (SEAL 911), Alex Van de Sande (ENS), Griff Green (Giveth), and Pol Lanski (DappNode).
Project page on Giveth | Context thread on X

Our audit process

  • Direct access: Work with the founder from start to finish, no junior handoff.
  • Transparent process: Open communication, clear reporting, and tailored quotes.
  • Continuous support: From initial assessment to post-audit guidance, Zealynx is your partner in long-term security.

Ready for a trusted, well-priced smart contract audit?

If you’re seeking a recognized, cost-effective, and top-tier smart contract audit partner, one who combines deep technical knowledge with real-world results, Zealynx is ready to help your project launch securely and confidently.
Request a Quote or Contact Carlos on telegram to get to know more.

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15 vulnerabilities every DeFi team should check before mainnet. Used by 30+ protocols.

No spam. Unsubscribe anytime.