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our company, an AI-first company, is revolutionizing how visual content is created. With a mission to bridge the gap between imagination and creation, we are dedicated to bringing cutting-edge technology to the creative and business spaces.
Our advanced AI photo and video generation models, including our open-source LTXV model, power our apps and platforms including Facetune, Photoleap, Videoleap, and LTX Studio, allowing creators and brands to leverage the latest research breakthroughs, offering endless control over their creative potential. Our influencer marketing platforms, Popular Pays and Content Lab, provide influencers with the ability to scale their content and monetize their work, while offering brands opportunities to expand their reach through tailored creator partnerships.
Our ML Platform team is responsible for building our companys ML serving platform, which hosts all of the companys ML and Gen AI models. Our goal is to create streamlined processes to bring functional research code and AI models to production grade systems, where millions of our apps users enjoy this magic.
Your day-to-day job will involve
Lead the design and evolution of our ML Platform, partnering closely with DevOps, research, and product engineering teams to ensure it meets the current and future needs of our company.
Architect and implement reliable, scalable, and high-performance services that power the ML and GenAI experiences across our suite of products.
Drive technical strategy and roadmap for the platform, identifying opportunities for innovation, optimization, and automation.
Collaborate across teams to define platform capabilities and influence infrastructure direction based on product and organizational goals.
Mentor and guide engineers in the team, promoting a culture of technical excellence through code reviews, design discussions, and knowledge sharing.
Serve as a key technical leader in cross-functional initiatives, helping align teams on architecture, best practices, and long-term vision.

We are At Cross River, we're building the financial infrastructure that powers global innovation. With our cutting-edge suite of embedded payments, cards, and lending solutions, we enable millions of businesses and consumers to transact seamlessly and securely. With 900+ employees worldwide and an R&D center of over 160 employees in Jerusalem - we’re reshaping how financial technology is developed and delivered.

The Role:
We’re seeking a Senior Application Security Engineer to be the go-to security expert for our software and blockchain engineering teams. In this high-impact role, you’ll embed security across the entire SDLC - from CI/CD pipelines to smart contracts—helping us build secure-by-design systems that power the future of fintech and digital assets. You’ll lead threat modeling, drive secure development practices, and automate guardrails that make security effortless for developers. As part of a collaborative security team, you’ll influence architecture, compliance, and innovation while protecting millions of users and billions in assets.

Who You Are:

* A proactive self-starter with deep expertise in application and cloud security
* Passionate about secure development and enabling engineers through thoughtful guardrails
* Clear and confident communicator who can influence across technical and non-technical teams
* Curious about emerging threats and excited by the challenges of blockchain security
* Committed to excellence, with a strong sense of ownership and a drive to build secure systems that scale

What You’ll Actually Be Doing:

* Integrate security tools (SAST, DAST, SCA, secret scanning) into CI/CD pipelines using GitHub Actions, Jenkins, and related DevOps tooling
* Lead threat modeling and secure architecture reviews for new features, APIs, and blockchain systems
* Conduct smart contract security reviews and advise on cryptographic and wallet security patterns
* Coordinate penetration tests, manage bug bounty reports, and track remediation through development teams
* Build reusable security components, libraries, and developer-friendly guardrails
* Deliver internal training, build a security champion network, and drive adoption of AppSec best practices
* Produce security metrics, documentation, and audit evidence to support FFIEC, PCI DSS, SOC 2 compliance
* Stay current on evolving threats in blockchain, DeFi, GenAI, and supply-chain ecosystems

Why You’ll Love Working Here:
You’ll help secure some of the most innovative products in fintech and crypto - while collaborating with brilliant, supportive teammates who care deeply about doing things the right way. Our security culture is proactive, collaborative, and continuously improving. You’ll have the autonomy to lead impactful initiatives, influence design from day one, and grow alongside a team that’s invested in modern tooling and professional development.

Next Step:
Hit Apply. Bring your AppSec mastery abilities. We’ll bring the challenge – and the snacks.