--- title: 'Security Engineer at Coinflow' canonical: 'https://feeny.ai/job/security-engineer-coinflow-europe-israel-f0069apt04we' type: 'job' last_seen: '2026-10-30' --- # Security Engineer at Coinflow - **Company:** Coinflow - **Location:** Europe / Israel - **Employment:** full-time - **Posted:** 2026-10-26 - **Last confirmed live:** 2026-10-30 - **Apply:** https://jobs.ashbyhq.com/coinflow/8d7956ce-8160-45d2-a090-5f5cb337377a ## Job description ## About Coinflow Coinflow is the next-generation payment service provider revolutionizing global financial infrastructure with stablecoins, AI-driven fraud prevention, and instant settlement. Coinflow enables businesses to grow faster with instant settlement, fraud & chargeback indemnity, global pay-ins, multi-currency FX, and unified payouts. Founded in 2023, the company serves marketplaces, fintechs, remittance providers, gaming platforms, and ecommerce merchants worldwide. Since our seed round in 2024, we’ve achieved 23x revenue growth and scaled to multi-billion-dollar annual transaction volume. In response to this growth, Coinflow announced a [$25M Series A](https://coinflow.cash/blog/coinflows-series-a) in October 2025—led by Pantera Capital, CMT Digital, Coinbase Ventures, Jump Crypto, and Reciprocal Ventures—accelerating our mission to power the world’s fastest-moving businesses with innovative, reliable global payments. Coinflow is proudly headquartered in Chicago, IL. Learn more at [coinflow.cash](http://coinflow.cash). ## About The Role We're hiring for a Security Engineer to own the day-to-day defensive and offensive security posture of Coinflow. You'll build the SecOps backbone, hunt for weaknesses in our own stack before anyone else does, and partner with engineering to keep our SDLC fast and secure. This role reports to the CTO and has a direct line into every part of the engineering org. You'll be hands-on with modern AI-native security tooling — we use Claude Security and Claude Code as force multipliers for internal pentesting, code review, and remediation. If you're excited about being one of the first security engineers building this way, you'll fit in well here. ## What You'll Own - SIEM & SecOps Dashboard: Stand up and operate our SIEM. Build out the SecOps dashboard that gives engineering, compliance, and leadership a real-time picture of our security posture — alerts, anomalies, auth events, infrastructure changes, and audit-ready evidence in one place. - Internal Penetration Testing: Run continuous internal pentests against Coinflow services, APIs, infrastructure, and embedded SDKs. Use Claude Security and Claude Code to scale your coverage — automate reconnaissance, fuzzing, code review, and exploit development. Document findings, drive remediation, and measure mean-time-to-fix. - Vulnerability & Dependency Management: Own the vulnerability lifecycle end-to-end. Triage CVEs across our npm, cargo, and other ecosystems. Build the automation that keeps packages patched without breaking production — including Dependabot tuning, lockfile hygiene, and gated auto-merge for low-risk upgrades. - Secure Development Lifecycle: Monitor and improve how we ship code. Define secure-by-default patterns for new services, review threat models for high-risk changes, integrate SAST/DAST/secret scanning into CI, and make the secure path the fast path for engineers. - Compliance Partnership: Work alongside our compliance function to produce the evidence, controls, and monitoring artifacts that PCI DSS, SOC 2, ISO 27001, and DORA auditors need — without turning engineering into a paperwork shop. - Security and Application Monitoring: Review, troubleshoot and triage security and application issues, and fix or escalate these issues where necessary. This ensures we continuously provide safe, secure and efficient services to our customers. ## What We're Looking For - 4+ years in a security engineering, product security, or DevSecOps role, ideally at a fintech, payments company, or other regulated environment - Strong hands-on offensive skills — you've broken real systems, not just run scanners. Comfortable with web app, API, cloud, and infrastructure pentesting - Proven technical skills and understanding of complex technology architectures across different cloud hosting providers. - Production experience operating a SIEM (Datadog, Splunk, Elastic, Panther, or similar) and building dashboards that engineers actually use - Fluency in TypeScript/Node and at least passing comfort with Rust, Go, or Python — enough to read our code, find bugs in it, and write the tooling to find more - Experience with vulnerability management at scale: CVE triage, SCA tooling, dependency upgrade automation - Comfort working with AI-native tooling (Claude Code, Claude Security, or similar) as a daily driver — or genuine excitement to start - A bias toward shipping. We'd rather have a working v1 of a control today than a perfect v3 next quarter. The base salary range for this role is €80,000 to €100,000 EUR. The actual base salary offered depends on a variety of factors, including but not limited to experience, education, skills, qualifications and business needs. In addition, the employee who fills this role will be eligible for an equity grant, allowing you to share in the long-term success of the company. You will also have access to a wide array of benefits, including health and wellness benefits, 401(k) savings plan, and flexible time off. Join the team rewriting how money moves worldwide—and become a driving force in the $194 trillion cross-border payments market. ## About Coinflow ## Company Overview - **One-liner**: Coinflow provides a next-generation global payment infrastructure platform that enables businesses to accept payments, settle funds instantly, and orchestrate payouts and FX using stablecoins and AI-driven fraud prevention. - **Entity Type**: Private (Series A) - **Headquarters**: Chicago, Illinois, United States - **Founded**: 2022 - **Founders**: Daniel Lev (CEO), Benjamin Meeder (CTO), Jake Montgomery (COO) ## Core Business - **Primary industry/industries**: Financial Services, Payments Infrastructure, Fintech - **Target customers**: B2B – Marketplaces, gaming platforms, remittance providers, fintechs, e-commerce merchants, and cross-border payroll companies expanding globally. - **Mission or purpose statement**: “We’re on a mission to power the world’s fastest-moving businesses with the fastest global payments.” ## Products & Services - **Global Pay-ins**: Accept payments in 170+ countries with support for local payment methods and currencies. - **Instant Settlement**: Settle funds instantly on every transaction, leveraging stablecoins to eliminate traditional settlement delays. - **FX Orchestration**: Seamless multi-currency conversion and management for global operations. - **Unified Payouts**: Send funds instantly to vendors, workers, or users worldwide, with local rails and global coverage. - **Fraud & Chargeback Indemnification**: Full protection against fraud and chargebacks, meaning merchants are indemnified for losses. - **Low-code Widgets & Elegant APIs**: Developer-focused tools including low-code components for quick integration and full API access for custom payment experiences. ## Market Standing - **Valuation/Market Cap**: Not publicly disclosed (private company). - **Key Metric**: Total funding of **$30.9M** closed as of November 2025 Series A; annual revenue estimated at **$1.7M** (high-growth, pre-revenue-optimized stage). - **Notable Investors/Partners**: Led by **Pantera Capital** (Series A, $25M). Other investors include **Reciprocal Ventures**, **Jump Crypto**, **CMT Digital** (Seed). The platform has partnerships with multiple U.S. banks for payment processing and fund disbursement. - **Growth Signals**: - +276.9% headcount growth year-over-year (from ~4 to 40 employees). - Active job postings increased 75% month-over-month, with 14 open roles. - LinkedIn followers grew +349.2% year-over-year (11,940 followers). - Processing payments and live on multiple blockchains. ## Competitive Advantages - **Speed of Implementation**: Go-to-market in days with low-code widgets and simple API integration, significantly faster than legacy payment processors. - **Instant Settlement via Stablecoins**: Uses blockchain-based stablecoins (e.g., USDC) to provide instant settlement, solving a massive pain point for merchants who wait days for funds. - **Full Indemnification**: Offers complete fraud and chargeback protection, a strong differentiator in a market where merchants often bear liability. - **Developer-First DNA**: Built by engineers for engineers, the company emphasizes elegant APIs, detailed documentation, and a fast, minimal-friction integration experience. - **Unified Platform**: Combines pay-ins, FX, and payouts in a single integration, eliminating the need to juggle multiple vendors. ## Strategic Focus - **Expanding global payout coverage** and adding more local payment rails. - **Strengthening compliance, risk, and regulatory tools** to help merchants scale confidently. - **Enhancing developer experience** with richer APIs, documentation, and integrations. - **Partnering with financial institutions** to bridge traditional finance and blockchain. ## Why Work Here - **Culture**: A “move fast with precision” ethos that values speed, ownership, and judgment. Employees are trusted to make decisions and drive progress without heavy process. - **Engineering Focus**: Heavy investment in technical talent (29% of staff in technical roles). Strong emphasis on developer experience and product quality. - **Growth Stage**: Extremely high-growth environment (headcount up ~277% YoY, fresh $25M Series A). This is a genuine scale-up, offering roles with high ownership and impact. - **Team**: Founded by experienced technologists with roots in both blockchain and traditional finance. Notable talent from companies like PayPal, Worldpay, B2 Bank, and ZBD. - **Work Model**: Headquarters in Chicago (406 N Sangamon St), with offices in Chicago and Malta. 78% of current staff are US-based (Chicago), 4% in Malta. Remote/hybrid details not explicitly stated but likely flexible given tech-forward culture. - **Perks**: Strategic support from a dedicated team and investors; focus on speed (instant settlements) and reliability. Product live in 170+ countries. ## Sources 1. [coinflow.cash](https://coinflow.cash/) 2. [coinflow.cash/about-us](https://coinflow.cash/about-us/) 3. [LinkedIn](https://www.linkedin.com/company/coinflow-labs) 4. [VentureRadar](https://www.ventureradar.com/organisation/Coinflow%20Labs/0bc619e8-8562-40cc-8f20-913f77b98c56) 5. [Jobs page](https://jobs.ashbyhq.com/Coinflow) ## Other roles at Coinflow - [Fraud Data Scientist](https://feeny.ai/job/fraud-data-scientist-coinflow-chicago-xdqfqpjmkys9) — Chicago, IL - [ML Ops Engineer](https://feeny.ai/job/ml-ops-engineer-coinflow-chicago-ns65ck1y8hy1) — Chicago, IL - [Software Engineer](https://feeny.ai/job/software-engineer-coinflow-chicago-vh7rrqp0sv06) — Chicago, IL - [Finance Analyst](https://feeny.ai/job/finance-analyst-coinflow-chicago-2nh151b89vmm) — Chicago, IL - [Senior Fraud Analyst - Team Lead](https://feeny.ai/job/senior-fraud-analyst-team-lead-coinflow-chicago-ydgstd564nhn) — Chicago, IL - [Senior Manager, Compliance Program & Governance](https://feeny.ai/job/senior-manager-compliance-program-governance-coinflow-chicago-b6as2dpfmwyp) — Chicago, IL - [KYC Analyst](https://feeny.ai/job/kyc-analyst-coinflow-chicago-186bnqwpdp3w) — Chicago, IL - [Principal Product Manager - Fraud](https://feeny.ai/job/principal-product-manager-fraud-coinflow-chicago-4cfqx4jn8k13) — Chicago, IL - [Senior Growth Marketer](https://feeny.ai/job/senior-growth-marketer-coinflow-chicago-mh3y21y97m4j) — Chicago, IL - [Senior, Engineering Manager](https://feeny.ai/job/senior-engineering-manager-coinflow-chicago-hg38rvh1f868) — Chicago, IL