--- title: 'Query Infra Team Lead at Zafran Security' canonical: 'https://feeny.ai/job/query-infra-team-lead-zafran-security-tel-aviv-s8rqs5fvx57v' type: 'job' last_seen: '2026-09-09' --- # Query Infra Team Lead at Zafran Security - **Company:** Zafran Security - **Location:** Tel Aviv, Israel - **Employment:** full-time - **Work type:** onsite - **Posted:** 2026-08-23 - **Last confirmed live:** 2026-09-09 - **Apply:** https://jobs.ashbyhq.com/zafran-security/7cbbfdb7-be93-4c15-9948-7da17048bad8 ## Job description Zafran is building the next generation of vulnerability and risk management. Our platform brings together security, asset, vulnerability, exposure, and business context from many systems — then turns that data into clear investigation, prioritization, and action. We’re creating a new Query Infra to own the investigation infrastructure of Zafran’s data layer for the Platform. This team will take over the infrastructure behind our investigation databases and search capabilities. Data Infra will own the foundations behind Zafran’s data layer: infrastructure, modeling, performance, reliability, and query capabilities on top of our investigation databases. Other product and engineering teams will build customer-facing experiences, workflows, dashboards, and insights on top of the capabilities this team provides. We’re looking for an experienced Query Infra Team Lead to build and lead this team — someone who comes from deep data infrastructure, analytical databases, search infrastructure, and large-scale querying, and who wants to shape one of the most important technical foundations of Zafran’s platform. About Zafran: Our Mission: To stop the exploitation of vulnerabilities, everywhere. What makes us different: Zafran de-risks 90% of critical vulnerabilities overnight across your hybrid environment and utilizes Agentic Capabilities and your existing security tools to rapidly mitigate and remediate the 10% most likely to be exploited. Who’s behind us: Zafran is backed by Menlo Ventures, Sequoia Capital, Cyberstarts, and a deep belief that cybersecurity should move as fast as attackers do. We’re one of the fastest-growing companies in the industry, scaling to meet demand from the world’s most advanced, security-obsessed organizations. We’re serious about our mission- so expect work that matters, teammates who challenge and inspire you, and plenty of fun along the way! ## WHAT YOU’LL DO - Create, build and lead Zafran’s Data Infra team from the ground up. - Own the infrastructure of Zafran’s investigation data layer for the Platform. - Turn Zafran’s investigation infrastructure into a dedicated, well-defined platform capability. - Design and evolve the data models, schemas, indexing strategies, and query patterns that power Zafran’s investigation databases. - Lead the architecture, operation, and scaling of the databases and search infrastructure that power investigation, analytics, and query use cases across the platform. - Partner closely with Product, Backend, DevOps, Security Research, and customer-facing engineering teams to define clear boundaries, contracts, and data-layer APIs. - Make the data layer reliable, observable, cost-efficient, and performant across many tenants and large volumes of security data. - Set engineering standards for schema design, data modeling, query optimization, migrations, backfills, and data-quality monitoring. - Mentor engineers, review technical designs, and raise the bar for how Zafran builds and operates data infrastructure. - Stay hands-on: this is a leadership role for someone who can still go deep into architecture, production issues, performance bottlenecks, and complex queries. ## WHAT WE’RE LOOKING FOR - Experience leading engineers or acting as a technical lead in a data infrastructure, platform, backend infrastructure, or database-oriented team. - Strong hands-on background with large-scale analytical databases, data platforms, or search infrastructure. - Deep understanding of data modeling, query optimization, indexing, partitioning, storage layouts, and performance tradeoffs. - Production experience with ClickHouse, Elasticsearch, or similar technologies such as BigQuery, Snowflake, Redshift, OpenSearch, or other analytical/search systems. - Strong backend engineering fundamentals and the ability to design systems that are reliable, scalable, observable, and maintainable. - Experience operating data systems in production: monitoring, incident response, capacity planning, cost management, migrations, and backfills. - Ability to define clean interfaces between platform infrastructure teams and product/application teams. - A leadership style that combines technical depth, ownership, mentorship, and strong cross-team collaboration. - Comfort working in a fast-moving startup environment where the team is still being shaped and the technical foundations are evolving. ## NICE TO HAVE - Hands-on ClickHouse experience in production. - Hands-on ElasticSearch experience in production. - Experience with multi-tenant SaaS data architectures. - Experience with streaming or event-driven ingestion pipelines, including Kafka or similar technologies. - Background in cybersecurity, vulnerability management, exposure management, CTEM, SIEM, EDR, CNAPP, CSPM, or related security-data domains. - Experience building a new team, owning a platform capability, or extracting infrastructure ownership from a product team. - Experience supporting analytical or investigation-heavy product use cases. ## WHY THIS ROLE MATTERS Zafran’s product depends on making complex security data usable, searchable, explainable, and actionable. The Data Infra team will own the technical layer that makes this possible. This is a chance to define how Zafran models and queries investigation data, how our product teams consume it, and how our platform scales as customer data grows. You’ll be joining at the moment where the data layer becomes a dedicated platform discipline — and you’ll have the opportunity to shape both the architecture and the team behind it. ## About Zafran Security ## Company Overview - **One-liner**: Zafran Security provides an AI-native Threat Exposure Management platform that unifies vulnerability data, assesses exploitability in context, and automates mitigation and remediation using existing security controls. - **Entity Type**: Private (Series C) - **Headquarters**: New York, New York, United States [linkedin.com] - **Founded**: 2023 (inferred from initial seed funding in early 2024) [linkedin.com] - **Founders**: Sanaz Yashar (CEO) and Ben Seri (CTO) [zafran.io/about] ## Core Business - **Primary industry**: Cybersecurity (vulnerability / exposure management) - **Target customers**: Enterprise security teams (Fortune 500 and high-growth companies) [zafran.io/platform] - **Mission or purpose statement**: “Proactively stop the exploitation of vulnerabilities, everywhere.” [zafran.io/about] ## Products & Services - **Zafran Threat Exposure Management Platform** (SaaS / agentic): End-to-end platform that unifies findings across cloud, on-prem, and AppSec; assesses risk using runtime presence, reachability, exploitability, asset criticality, and existing controls; enables proactive exposure hunting; provides mitigation guidance that leverages compensating controls; and automates remediation via RemOps (generative AI‑powered remediation operations). [zafran.io/platform] - **Zafran Detector** (released Aug 2025): Continuous vulnerability discovery tool that supplements existing scanners. [linkedin.com] - **Agentic Remediation™**: AI agents that research CVE conditions, validate exploitability on live assets, generate remediation scripts, and maintain human oversight with approval workflows. [zafran.io/platform] ## Market Standing - **Valuation/Market Cap**: Not disclosed (private company) - **Key Metric**: Total funding of $105.5M as of December 2025. Breakdown: Seed $5.5M (Mar 2024), Series B $40M (Sep 2024, led by Sequoia Capital and Cyberstarts), Series C $60M (Dec 2025, led by Menlo Ventures). [linkedin.com] - **Notable Investors/Partners**: Sequoia Capital (Doug Leone on board), Cyberstarts (Lior Simon on board), Menlo Ventures (Rama Sekhar on board), Amex Ventures (strategic investor in 2026). Included in Microsoft for Startups Pegasus Program. [zafran.io/about, linkedin.com] - **Growth Signals**: 132 employees (51% YoY growth, +58 people); 30 open positions as of mid‑2026; monthly job postings up 57.9% YoY; expansion across US, Israel, Germany, and UK. [linkedin.com] ## Competitive Advantages - **AI-native, context-aware analysis**: Applies each customer’s unique asset criticality, runtime presence, and existing control stack to determine which vulnerabilities are truly exploitable – eliminating up to 90% of critical false positives. [zafran.io/platform] - **Leverages existing defenses**: Rather than demanding new agents or patch‑only fixes, Zafran maps exposures to compensating controls and provides step‑by‑step mitigation guidance, shrinking exposure windows before patching begins. [zafran.io/platform] - **Closed‑loop automation**: Agentic Remediation and RemOps reduce manual triage, consolidate overlapping CVEs into single remediation actions, and route work automatically via ticketing integrations. [zafran.io/platform] - **Founding team with breach‑response experience**: Co‑founders directly investigated breaches resulting from known vulnerabilities, giving the product a practitioner‑driven design. [zafran.io/about] ## Strategic Focus - **Scale the platform’s adoption among large enterprises** (Fortune 500) and expand the partner ecosystem. - **Continue product innovation** – recent launches include the Zafran Detector and RemOps; ongoing development of agentic capabilities. - **Global talent acquisition** – aggressive hiring across engineering, sales, and customer success to support 50%+ headcount growth. ## Why Work Here - **Culture**: Founded by cybersecurity practitioners who understand the pain of manual vulnerability management. Emphasis on “clarity and speed” and building solutions that make defenders more effective. [zafran.io/about] - **Work model**: Hybrid – offices in New York, Tel Aviv (Israel), and presence in Germany and the UK. Remote options for certain roles (e.g., Channel Manager listed as Remote – CST). [linkedin.com, zafran.io/careers] - **Notable perks / engineering culture**: High ratio of technical staff (40% of known department breakdown); talent drawn from top security companies (Palo Alto Networks, Tenable, Armis, Microsoft). The company values “customer” focus and “building” as core principles. [linkedin.com] - **Growth opportunity**: Joining at a Series C stage with proven product‑market fit and a clear path to scale – an ideal time for impact. ## Sources 1. [zafran.io](https://www.zafran.io/) 2. [zafran.io/about](https://www.zafran.io/about) 3. [zafran.io/platform](https://www.zafran.io/platform) 4. [zafran.io/careers](https://www.zafran.io/careers) 5. 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