דרושים » הנדסה » Large Scale Training Engineer - LTX Video

Following the success of LTX-Video, our widely adopted open-source text-to-video model, we are expanding our efforts to develop cutting-edge video generation models and are hiring Research Scientists to join our LTX-Video Core team.
At our company, weve been at the forefront of innovation in text-to-image and text-to-video generation, with LTX-Video driving our flagship product, LTX Studio, and gaining significant traction in the research and open-source communities, including integrations with platforms like ComfyUI and Diffusers.
This role focuses on pioneering model architecture and pre-training algorithms, shaping the next generation of our foundational generative AI models.
What you will be doing
Pre-train and fine-tune video and image generative models to pursue state of the art results.
Publish papers and open-source models to benefit the research community and advance the field.
Design and implement machine learning models for text-to-video generation.
Collaborate with data engineers to curate and preprocess text and video data.
Optimize models for high performance, ensuring efficiency in training and inference phases.
Build new controls and capabilities into generative text-to-video models.
Stay updated with the latest developments in Generative AI, particularly in the field of image, video, and audio.
Work closely with product teams to integrate AI models into applications and services.
Conduct experiments and prototype new concepts to advance the capabilities of our AI tools.

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 platform, Popular Pays, provides creators the ability to monetize their work and offers brands opportunities to scale their content through tailored creator partnerships.
The Data Platform team powers our company's data-driven innovation by building cutting-edge systems that transform raw information into actionable insights. We create sophisticated solutions across the entire data stack, from intuitive self-service analytics and seamless media ingestion to lightning-fast event processing and sophisticated A/B testing frameworks. Our team operates at the intersection of big data and user experience, designing robust platforms that balance privacy protection with cost efficiency. Join us and help architect the infrastructure that fuels data-informed decisions and directly impacts product success.
What you will be doing
Build, lead, and mentor a team of backend engineers, fostering professional growth and collaboration while putting a strong emphasis on engineering excellence.
Evolve our architecture and infrastructure to support the growing scale of users, features, and data.
Build strategic relationships with key stakeholders across the company, and develop a deep understanding of the business vision to ensure the data platform continues to meet evolving needs while maintaining technical excellence.
Define and monitor metrics and KPIs to measure the health, performance, and impact of our data systems, continuously optimizing for scalability, reliability, and efficiency.
Have full responsibility for data compliance in the organization and lead the design and implementation of data compliance and privacy processes.

Who 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 looking for a skilled and curious Back End Developer to join our growing engineering team. In this role, you'll architect and build reliable, scalable services that power mission-critical fintech products - from payments and lending to compliance and blockchain. You'll collaborate closely with product, DevOps, and front-end engineers to design robust APIs, implement clean data flows, and solve complex performance challenges. Your work will shape how money moves securely across our infrastructure and directly support millions of users. This is a great opportunity to drive meaningful impact while learning and growing within a highly supportive and technical team.

Who You Are:

* A thoughtful engineer who balances technical excellence with product impact
* Comfortable across the full stack, with strong backend expertise and frontend awareness
* Detail-oriented and passionate about clean, scalable, and well-tested code
* Excited to collaborate and share your knowledge across teams
* Motivated by ownership, mentoring others, and building features that users love

What You’ll Actually Be Doing:

* Design, develop, and deliver scalable software modules and components
* Build backend systems using .NET, DotNet 6.0, SQL Server, RabbitMQ, Docker and AWS
* Plan, triage, and prioritize work across multiple priorities
* Share your knowledge with teammates and help mentor and guide partners

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 Beck End abilities. we’ll bring the challenge (and the snacks!)

We're seeking a Developer Advocate to build and nurture the developer community around our open-source model, LTX Video. This role sits at the intersection of technical development, community engagement, and product strategy, requiring someone who can speak the language of developers while fostering meaningful connections within the AI community.
What you will be doing
Establish and manage community presence across key platforms including Discord, GitHub, Hugging Face, and Reddit
Create and moderate technical discussions around model development, implementations, and fine-tuning
Organize and host AMAs (Ask Me Anything) sessions and other educational webinars
Build and maintain relationships with key community members and developers
Identify and recruit beta testers for new features and implementations
Program Management
Develop and manage a community sponsorship program for outstanding contributors
Create documentation and resources to support community development efforts
Track and analyze community metrics and engagement
Establish best practices for community contribution and collaboration
Coordinate with internal teams to align community initiatives with product roadmap.

Who 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 are on a mission to build the infrastructure that propels access, inclusion, and the democratization of financial services. While our company has tripled in size over the last three years, our strong sense of purpose led Cross River to be named to American Banker’s list of Best Places to Work in Fintech for the last 6 years. The reason for this success is simple – our nimble and collaborative family culture lives in every member of our growing team. Together we are at the forefront of technology and innovation, and we invite passionate, collaborative, and motivated high performers to join our expanding team.

Who You Are:

* Curious and analytical – You love digging into data, asking the right questions, and uncovering insights that others might miss.
* Clear communicator – You can explain complex findings in a way that’s easy to understand, whether it’s to compliance officers or business partners.
* Collaborative mindset – You enjoy working across teams and believe that the best solutions come from bringing different perspectives together.
* Mission-driven and detail-oriented – You care deeply about making a real-world impact and bringing focus and precision to everything you do.

What You’ll Actually Be Doing:

* As a key member of the Business Risk unit within QSG, you will work on risk model/tool development and management. Help the lead of the unit in second and third line liaisons, working closely with model owners to ensure model compliance.
* Under the leadership and mentorship of the lead of the unit, carryout light modeling activities including but not limited to model enhancements, error corrections, what-if analysis and outcome attributions. Author high quality model documentation, execute model monitoring plans and build solutions for identified model issues remediation.
* Participate in all model production runs necessary for regulatory, capital management and business processes. Take complete ownership of the assigned procedure, build presentation artifacts, ad-hoc analytics and conduct deep dives.
* Maintain model inventory and calendar for different activities like validation, model production for various usages, Q&A with second and third line etc.
* Participate in validation discussions with MRM including iterating on validation findings and proposed resolutions. Assist unit lead for off second and third line as well as external regulatory exams.


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 Quant abilities. We’ll bring the challenge – and the snacks.

Who 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:
As a Software Engineer, you’ll design, develop, and deploy robust software systems across our platform. You’ll have ownership of end-to-end projects, the autonomy to lead from idea to implementation, and the opportunity to work across product lines - from scalable APIs and secure infrastructure to machine learning. The role also brings unique engineering challenges shaped by regulatory and compliance requirements - pushing your creativity and technical capabilities.

Who You Are:

* A product-minded engineer who loves solving problems at scale
* Comfortable owning full systems - from architecture to deployment
* Passionate about writing clean, maintainable code with an eye on the end user
* A collaborative team player who mentors generously and learns continuously
* Curious, thoughtful, and excited by a fast-moving environment

What You’ll Actually Be Doing:

* Design, build, test, and deploy backend systems for high-scale financial applications
* Lead architecture reviews and drive decisions across technologies and platforms
* Write well-tested code and review peers’ work for quality and clarity
* Collaborate with Product, DevOps, and Security teams to deliver seamless experiences
* Own and improve development lifecycles including CI/CD, observability, and cloud automation
* Debug production issues and lead efforts to ensure system reliability and uptime
* Contribute to internal documentation and onboarding processes
* Participate in a Tier 2/3 on-call rotation to support business-critical systems

Why You’ll Love Working Here:
You’ll be part of a supportive, down-to-earth team that values collaboration, curiosity, and initiative. We foster a culture where engineers have real ownership and learning never stops. You’ll work on high-scale systems using cutting-edge tech, solving meaningful problems that power the future of fintech. Whether it’s building secure infrastructure, launching new products, or optimizing performance, you’ll see your impact every day.

Next Step:
Hit apply. You bring the talent; we’ll bring the challenge (and the snacks!)

If you have a strong background in iOS development, excellent leadership skills, and a passion for building innovative applications, we want to hear from you!

The role:
Lead and manage a team of iOS developers, providing technical guidance, mentorship, and support to ensure the successful delivery of high-quality iOS applications.
Collaborate with cross-functional teams, including product managers, designers, and backend developers, to define project requirements, scope, and timelines.
Drive the architectural design and technical decision-making processes for iOS projects, ensuring scalability, performance, and maintainability.
Hands-on iOS development using SwiftUI and UIKit, actively contributing to the codebase and conducting code reviews to ensure best practices are followed.
Conduct regular performance evaluations, provide constructive feedback, and identify areas for skills development and training within the iOS team.
Stay up-to-date with the latest trends and advancements in iOS development and bring innovative ideas and solutions to the team.
Act as a point of contact for clients or stakeholders, addressing technical queries, providing project updates, and managing expectations.
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As we expand our customer base and continue to grow our product offering, we are seeking a Development Group Leader to lead a team of engineers working on high-performance, mission-critical systems.

The development group consists of approximately 120 engineers across various roles, including core development, GUI development, QA, DevOps, and DBA, all working with a range of technologies. The software we develop operates in microsecond latencies and is used by all our customers, though it is not multi-tenant.

Key Responsibilities:

Lead sprint planning and ensure effective project delivery.
Directly manage part of the development team, fostering collaboration and growth.
Oversee system architecture during design reviews, ensuring optimal solutions.
Communicate directly with customers to understand their needs and gather requirements.
Take ownership of the full development cycle, from specifications through design, coding, and unit testing.
Ensure high standards of quality, performance, and reliability across all software products.

Our ideal candidate is someone with a systematic problem-solving approach, coupled with strong communication skills, a sense of ownership and drive. Someone who is as passionate as we are about the craft of software engineering and system architecture, and understands the challenges of building complex backend systems. Someone who believes in writing resilient code and reliable infrastructure, but can still appreciate the realities of business and can deliver on a tight schedule in a fast-paced environment. An individual who loves learning, understands the value of teamwork and cherishes the feedback of other talented engineers.
What you will be doing
Lead a team of 68 engineers, providing mentorship, guidance, and support in their professional development and daily work.
Take ownership of the teams delivery and execution, from planning and prioritization to quality and production stability.
Remain hands-on and contribute to the codebase when needed, especially in complex or high-impact areas.
Design highly available, mission-critical microservices and APIs.
Architect and implement scalable data pipelines that integrate with multiple internal and external data sources.
Drive the development of internal tools, campaign automation systems, dashboards, and reports to empower end users.
Promote and implement engineering best practices for code quality, testing, observability, and deployment.
Collaborate closely with relevant stakeholders to shape solutions from idea to delivery.