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As a Large Scale Training Engineer, you will play a key role in enhancing the training throughput of our internal framework and enabling researchers to pioneer new model concepts. This role demands excellent engineering skills for designing, implementing, and optimizing cutting-edge AI models, alongside writing robust machine learning code and understanding supercomputer performance deeply. Your expertise in performance optimization, understanding distributed systems, and bug elimination will be crucial, as our framework supports extensive computations across numerous virtual machines.

This role is designed for individuals who are not only technically proficient but also deeply passionate about pushing the boundaries of AI and machine learning through innovative engineering and collaborative research.

Key Responsibilities
Profile and optimize the training process to ensure efficiency and effectiveness, including optimizing multimodal data pipelines and data storage methods.
Develop high-performance TPU/GPU/CPU kernels and integrate advanced techniques into our training framework to maximize hardware efficiency.
Utilize knowledge of hardware features to make aggressive optimizations and advise on hardware/software co-designs.
Collaboratively develop model architectures with researchers that facilitate efficient training and inference.
Design, maintain, and evolve a high-quality, shared codebase that emphasizes correctness, readability, extensibility, testing, and long-term maintainability, while balancing performance requirements.

As a Large Scale Video Understanding Research Scientist, you will play a key role in improving video generation quality and efficiency by improving video and audio understanding pipelines used for both training data construction and model evaluation.. This role demands hands-on work with large-scale Video Language Models (VLLMs), including fine-tuning, post-training, and control, alongside implementing classic computer vision and signal processing algorithms and applying strong research skills. Your expertise in post-training and controlling large scale foundational models, understanding statistics, implementing complex systems and eliminating bugs will be crucial, as our video training sets consist of petabytes of data processed across hundreds to thousands of virtual machines.

What you will be doing
Fine-tune and control VLLMs for video and audio understanding.
Design algorithms for balancing, filtering, and curating training and evaluation datasets, informed by model behavior and failure modes.
Implement classic and modern algorithms for processing, clustering, evaluation and filtering of large scale datasets.
Work within high-performance, scalable distributed systems capable of handling petabytes of data, with attention to throughput, correctness, and reproducibility..
Collaborate with other researchers and product stakeholders to iteratively improve training sets and evaluation protocols through tight feedback loops driven by model performance.

An AI-first tech company in the automotive space with hubs across the US and Israel. Our mission is to constantly disrupt the industry by creating new, groundbreaking technologies to help dealers build stronger, more resilient businesses. Our work happens in the fast lane as we work to bring AI and data -driven solutions to a quickly evolving industry. Our team is made up of curious and creative individuals who are always looking to achieve the impossible. We are bold, collaborative, and goal driven, and, at our core, we believe every voice has value and can impact our bottom line. We are looking for a Top University Graduate to join us as a Junior software engineer and make a real impact on our R&D team! In this role you will have the opportunity to take ownership of the development of amazing new products and work on interesting projects inside a smart, fun, and dynamic engineering team. We seek an individual passionate about tackling tech challenges, with a proactive and AI first approach to push forward a love for coding and a dedication to excellence. This is a full-time, on-site position based in our Jerusalem office in Talpiyot or Tel-Aviv office near HaShalom Train Station.

What you will be responsible for:

* Write clean, high-quality, maintainable code across our stack
* Take ownership of features and projects end-to-end - from design through deployment
* Collaborate closely with product, design, and fellow engineers to ship impactful solutions

Why you should join us:

* An awesome global team of forward-thinking, innovative go-getters
* Learning and growth opportunities within a fast-paced tech startup environment
* Clear career advancement path for strong performers
* As a part of our team, your success in this role is crucial to our company's growth. We are committed to supporting you in achieving your KPIs and goals and providing regular feedback to help you reach your full potential. Together, we can make a real impact and achieve great things!
* Cibus and lots of yummy treats:-)

we are looking for a DevOps Engineer for Embedded & Cyber Systems.
Responsibilities:
Own the design, implementation, and maintenance of DevOps processes in alignment with project requirements and industry best practices.
Implement Infrastructure as Code (IaC), support secure development practices, work with GitOps methodologies, operate in air-gapped environments, develop scripts, and build CI/CD pipelines.
Lead and optimize processes across all stages of the software development lifecycle, leveraging advanced technologies and tools for complex cybersecurity projects in defense systems.
Collaborate closely with development teams and cross-functional stakeholders as part of a multidisciplinary team.

we are looking for a DevOps Engineer for Embedded & Cyber Systems.

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 the Security Engineering Operations Assistant, you'll be the organizational backbone for the VP, Security Engineering—ensuring requests move forward, deadlines stay visible, and nothing gets lost in the shuffle. This isn't about being an admin; it's about being the force multiplier that lets security leadership focus on strategy and technical priorities while you keep the machine running smoothly. If you're the person who naturally keeps lists, follows up before being asked, and gets satisfaction from bringing order to chaos—this role was made for you.

Who You Are:
You're the person everyone relies on to remember the thing that was supposed to happen last Tuesday. You've got 2–5 years of experience in technical coordination, support roles, or security/IT/engineering operations environments, and you know how to work alongside technical teams without needing your hand held. You're exceptionally organized—not in a "my desk is clean" way, but in a "nothing falls through the cracks" way. You communicate clearly in writing and conversation, you're comfortable working closely with senior leadership, and you handle sensitive information with discretion. You're not intimidated by technical discussions—even if you're not the one configuring the firewall, you can follow along, capture the key decisions, and know what questions to ask to make sure everyone's aligned on next steps. You're proactive, dependable, and genuinely curious about how things work.

What You’ll Actually Be Doing:
Direct Support to Security Engineering Leadership
* Assist the VP, Security Engineering with tracking requests, action items, and follow-ups arising from meetings, emails, and discussions
* Maintain organized lists of open items, next steps, and pending decisions
* Perform routine follow-ups with internal teams and external vendors on behalf of Security Engineering
* Help ensure deadlines and commitments are visible and monitored
* Surface overdue items or risks that may require attention Coordination & Task Tracking
* Support coordination of security engineering activities across Security, IT, Engineering, GRC, and external partners
* Track progress of assigned tasks and initiatives using established tools and processes
* Assist in scheduling, preparation, and follow-up for security-related meetings
* Help organize priorities and timelines across multiple parallel efforts Technical Awareness & Documentation
* Maintain familiarity with core security engineering domains, including: Identity and Access Management, Endpoint and device management, Cloud security basics (AWS and Azure), Security tooling and operational workflows
* Capture key outcomes, decisions, and action items from technical discussions
* Maintain documentation, trackers, and status updates
* Ask clarifying questions to ensure expectations and next steps are understood Communication & Information Flow
* Support intake and coordination of inbound requests to the Security Engineering team
* Prepare clear summaries and status updates as needed
* Help ensure relevant information is shared with appropriate stakeholders
* Support prioritization discussions by maintaining visibility into current workload and commitments


Why You’ll Love Working Here:

* Flexible hybrid work model: three days a week at our Jerusalem office
* Monthly wellness reimbursement – from therapy to gel manicure, it's up to you
* Full Keren Hishtalmut, private health and dental insuranc

Your experience building well-architected, high-performance frontend components will directly impact how quickly teams can ship, how consistent our products feel, and how confidently we can continue to innovate at scale.

What Youll Do:
Build and maintain shared frontend foundations used across products, with a strong focus on scalability, performance, and long-term maintainability.
Build, document, and maintain a shared UI components library used across products.
Develop high-performance data visualization components and reusable interface patterns.
Collaborate with design and product teams to transform Figma designs into functional React components.
Take ownership of projects and collaborate effectively across teams to deliver production-grade UI solutions.
Participate in the modernization and technical health of the frontend by refactoring, improving architecture and state management, enforcing code quality standards, and continuously optimizing rendering, bundling, and build workflows
Leverage AI tooling to assist with frontend development workflows, including code generation and refactoring, performance analysis and design-to-code alignment, while applying strong engineering judgment to review and productionize results.

This role is a great fit for someone who thrives in an environment that values speed without compromising on quality, and who enjoys taking full ownership of their work end to end. If you are curious by nature, demonstrate strong entrepreneurial thinking, are not afraid to ask questions, and know how to navigate ambiguity while moving quickly, you will do well .