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We are looking for a Senior ML Engineer.
Responsibilities:
As a Senior Machine Learning engineer at Substrata, you will be working directly with our Head of R&D and will take a major role building our Pragmatic Intelligence Engine using and experimenting with S.O.T.A Deep Learning architectures, including: Multi-Layer Perceptron Neural Network, LSTM, mLSTM, CNN, RNN, VDCNN, etc.

We are looking for a Senior Network and Storage Test Engineer to join our End-to-End NCS (Networking Cloud Solutions) team. You are going to be part of the E2E Verification team with the main goal of testing and be part of defining the most sophisticated Ethernet/InfiniBand NIC and Switch features and topologies, which build fast enablement for the company's products to meet growing market demands. The ideal candidate will engage in testing and defining of Networking industry-leading systems and will bring with him an ability of the fast learning of new features, technologies, and protocol.
What you'll be doing:
Contribute to design review and product features requirements under the whole Ethernet/InfiniBand NIC & Switch portfolio and AI network.
Design and build setup topologies for appropriate product coverage with an emphasis on an emulation of customer large scale / complex environments.
Design, mentorship for testing automation team, and implement tests for the new features, as part of our company growing network switch and adaptors division.
Lead innovation approach by prepare and deploy different POC activities, based on the growing field demands.
Generate comprehensive test reports during release execution procedure, assist with reproduction and debugs complex customer use cases, with determination of the issue root cause, be an engineering PIC for the full verification cycles of the customer use cases fixes provided by R&D team.
Execute end-to-end test scenarios in different scopes: Regression, Performance, Functional and Scale; Report the progress of testing and provide summary reports of testing activity.

We are looking for a Computational Linguist (NLU).
If youre the one youll be working on the most incredible sales-assistant in
the industry.

we are looking for an experienced DFT Engineer to join an exceptional team of DFT experts to develop the next generation DFT technologies.
As a DFT engineer at the networking group at our company, you will participate in definition and implementation of our DFT technologies in various projects. This position offers the opportunity to have real impact in a dynamic, technology-focused company impacting Switches, Nic and SoC product lines. We are working closely with a wide range of aspects - chip design, backend, verification and production testing. We are working on the most advanced technologies and sophisticated products, our DFT solutions are unique, innovative, and we are continuously improving and evolving the solutions to meet the challenging goals.
What you'll be doing:
In this position, you will be responsible for defining, coding and integrating sophisticated DFT components into various projects and using state-of-the-art technologies.
As a member of our DFT design team, you will participate in defining various DFT features and improvements, write micro-architecture documents, code design blocks, integrate them into various projects, bring your design to silicon tape-out and silicon testing and production.
Strong collaboration with architects, other design teams, verification, back-end and production testing to accomplish your tasks.

The CSO Security team is looking for a Senior Application Security Researcher. In this role, you will perform vulnerability research, assess existing architectures, and build and run tools to secure the application landscape at scale. You will work closely with R&D and DevOps teams and be the focal point for identifying and solving complex security challenges. This is a hands-on, development-focused role with the goal of ensuring our products adhere to the stringent security requirements of our thousands of customers.
As a Senior Application Security Researcher you will
Continuously assess and challenge our overall security posture to ensure optimal and up-to-date platform security in our products and systems
Evaluate architecture, design, and code to ensure they are free from potential vulnerabilities and security risks
Train and mentor developers about security frameworks, testing, vulnerabilities, and best practices to ensure code compliance
Evaluate new technologies and standards in the application security domain
Plan and lead cross-company efforts with the R&D that will improve JFrogs security posture.

We are looking for a Experienced Backend Engineer.
At SubStrata were building a machine learning based software that helps sales and business-development professionals push the deal forward and convert more prospects into clients.
As a full-stack engineer, youll play a key role in our expanding core technology team.

Were looking for a talented R&D Director to lead the R&D department for Viber Business Messages and Bots. As a R&D Director youll lead teams building scalable, high‑impact features that enable businesses worldwide to connect with customers via Viber Business Messages API. Youll balance technical leadership, team growth, and strategic alignment with business and product goals to scale global product. This is a highly influential senior role that has a significant impact on the success and roadmap of the product and business.

The right person should have experience in leading, hiring and coaching high performance teams of mobile client development, backend, and QA engineers. You will be working closely with senior management, product management, business leads, and with our global teams (Tel-Aviv, Russia, UK and others). Ideal candidates will have experience from API or communications platform driven B2B or B2B2C company.

Responsibilities:
Manage and coach high-performing global teams of client, backend, web and QA engineers.
Experience building and leading platform engineering efforts in messaging, cloud services, or communications platforms.
Quickly deliver high quality, scalable, mobile application and backend infrastructure.
Measure, analyze, and improve existing software to enhance performance and functionality.
Exceptional verbal and written communication skills with the ability to convey complex concepts clearly and concisely.
Partner with leaders across the business to align R&D organizational goals with business goals.

Required Offensive Security Team Lead
As an Offensive Security Team Lead, you will spearhead our offensive security operations and lead advanced threat research initiatives, playing a pivotal role in safeguarding our organization and customers from evolving cyber threats. You will develop and execute Red Team exercises, simulate real-world attacks, and identify security weaknesses in our systems and applications. We seek a highly skilled, proactive tech leader who thrives in challenging environments and is passionate about advancing security research and offensive strategies.
As an Offensive Security Team Lead you will
Lead, plan, design, and execute Red Team operations, threat modeling, and adversarial simulations against our infrastructure and cloud environments
Drive threat research and intelligence initiatives to stay ahead of emerging cyber threats, attack techniques, and vulnerabilities
Develop and execute advanced attack scenarios to assess security defenses and provide actionable recommendations for improving our security posture
Collaborate closely with security engineering, DevOps, and software development teams to implement findings and enhance our defenses
Lead the development of tooling, frameworks, and methodologies to automate and optimize Red Team exercises
Mentor and guide a team of security professionals, fostering a culture of innovation, collaboration, and continuous learning
Participate in incident response when Red Team exercises reveal vulnerabilities, providing expertise on attack techniques, forensics, and post-attack mitigation
Continuously assess and improve security processes, playbooks, and threat detection mechanisms.

we are searching for world-class researchers in deep learning and natural language processing (NLP) to join our Conversational AI research team. Our team is pushing the boundaries of generative AI by building state-of-the-art large language models (LLM). We work on new neural architectures to enable LLM with very long context, on applying LLM to solve complicated math and coding problems, and on improvement LLM robustness. If you are passionate about the latest research and technologies revolutionizing generative AI and want to explore creative new paradigms for applied foundation models such as reasoning agents, this team will be a great fit for you. After building prototypes that demonstrate the promise of your research, you will collaborate with product teams to apply your ideas into industry-leading real-world applications.
What you will do:
Lead the research on new deep learning algorithms and techniques for efficient LLM inference
Develop new architectures for advanced large language models
Design and adapt foundation AI models to downstream tasks such as math and code reasoning.
Contribute these new models to Nemo framework
Construct and curate datasets for large-scale machine learning, for learning from human preferences, and for specific domains of applications.
Work closely with product and hardware architecture teams to integrate your research and developments into products.

powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

Senior Technical Program Manager
Overview
Dynamic Yield by looking for an experienced, creative, and highly motivated Senior Technical Program Manager to join our team. This role is ideal for someone passionate about driving complex software initiatives, with deep experience in Jira administration, strong proficiency in Excel, with experience using Tableau and emerging AI-powered reporting solutions.
As a Senior TPM, you will work cross-functionally with global stakeholders and internal development teams to ensure flawless execution of technical programs, build alignment across teams and geographies, and continuously refine our program delivery practices.
Key Responsibilities
Serve as the primary Jira administrator configure and maintain projects, workflows, permissions, automations, dashboards, and reporting to support evolving team needs and delivery processes
Lead and coordinate programs that span multiple teams, departments, and geographical locations, ensuring alignment, collaboration, and delivery across diverse stakeholders
Create and maintain reporting tools and dashboards using Excel, Tableau, and AI-based solutions to track program health, resourcing, and performance metrics
Own and drive the full lifecycle of multiple software projects planning, execution, delivery, and retrospective
Track project timelines, milestones, and deliverables; escalate issues proactively
Provide clear and regular communication to stakeholders, including risk assessments and mitigation plans
Lead and support quarterly planning processes, creating clarity and visibility across all levels of the organization
Serve as an Agile coach for cross-functional teams, helping embed best practices and workflows
Identify delivery bottlenecks and proactively work with teams to remove roadblocks
Provide program management support for specific initiatives or teams as needed
Collaborate with engineering teams in support of customer-facing projects including troubleshooting and progress tracking

We are looking to hire a Chip Design Verification Engineer to join our company Chip Design group. The work environment is versatile, educational, dynamic and challenging as our employees are currently working on innovative, next-generation networking devices at the forefront of technology in terms of performance and power efficiency. Daily work involves all aspects of chip development: Design, Micro- Architecture, Firmware, and Verification. Work with the best and become one of the best!
What you will be doing:
Work in a combined design and verification team which develops core units within the Networking silicon.
Build reference models, verify and simulate chip blocks/entities according to specifications and performance requirements.
Work closely with multiple teams within organizations such as Architecture, Micro- Architecture, FW and Post-Silicon validation.

We are seeking a highly skilled Senior DevOps Engineer to join our team! In this role, you will drive best practices, optimize operational workflows, and mentor junior engineers, fostering a culture of collaboration and innovation. This is an exciting opportunity for someone passionate about building next-generation DevOps platforms at scale. You will lead large-scale, cross-functional initiatives, working closely with R&D architects to shape the best DevOps strategies for our SaaS solutions. If you're eager to make a significant impact in a fast-paced, high-growth environment, we encourage you to apply.
As a Senior DevOps Engineer, you will
Lead the team towards technical solutions guided by a strong understanding of the latest and greatest technologies like Kubernetes, Helm, Terraform, and more
Design, implement, and manage cloud and containerized architectures in GCP, AWS, and Azure
Design, develop, and manage large-scale systems with CI/CD in mind, to support multiple production environments and use cases
Tackle large-scale production issues and bring out-of-the-box thinking to the table
Evaluate new cloud-native technologies and vendor products to continuously improve our SaaS offerings.

our company's Chip Design group is looking for best-in-class Design/ Verification Engineers to join our outstanding Silicon Engineering team, developing the industry's best high-speed communication devices, delivering the highest throughput and lowest latency! Come and take a significant part in designing and verifying our groundbreaking and innovating chips, enjoy working in a meaningful, growing and highly professional environment where you make a huge impact in a technology-focused company.
What youll be doing:
Design/ Verification for chip blocks/entities according to specifications under challenging constraints and with high orientation to performance.
Daily work involves acquaintance with all aspects of chip development: Micro- Architecture, Firmware, Production, and Verification.
Engage in cutting-edge PCIe generation working on latest PCIe gen7.

powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
We are seeking an experienced Backend Tech Lead to join our recommendations group. As a Tech Lead, you will be instrumental in shaping the technical direction and architecture of our backend systems. You will leverage your deep expertise in backend technologies to design, build and scale backend services while guiding a group of engineers toward delivering robust, high-performance solutions. This role offers the opportunity to collaborate with cross-functional teams and contribute to projects that impact the entire organization. If you're a leader with a passion for backend development, we would love to have you on board!

As a Backend Tech Lead, your responsibilities will include:
Mentoring and guiding backend engineers to ensure high-quality code and effective development processes.
System design and architecture: Designing scalable, efficient, and secure backend systems, including APIs and data storage solutions, using technologies like Python, MySQL, Redis and Elasticsearch.
Tech stack evolution: Driving improvements in backend technologies, frameworks and development practices.
Cross-functional collaboration: Working closely with product managers, frontend teams and other stakeholders to ensure backend services meet business requirements and technical specifications.
Performance and scalability: Ensuring that our backend services are highly available, scalable and optimized for performance.
Cloud infrastructure: Overseeing cloud services and ensuring backend systems are seamlessly integrated with cloud platforms.
Code quality and best practices: Writing and maintaining clean, maintainable and well-documented code, while fostering a culture of code reviews, continuous improvement and adherence to best practices.
Technical leadership: Owning the technical direction of backend systems, making key architectural decisions and promoting industry best practices within the group.

We are looking for a Senior DevOps Developer to join a team responsible for the integration between GitHub and Artifactory. If you have extensive experience in designing and implementing end-to-end CI/CD flows and are passionate about developer experience, this is the opportunity for you! In this role, you will be responsible for taking tasks from design to development and implementation.
As a Senior DevOps Developer you will
Lead the design and implementation of robust CI pipelines at scale, in order to streamline the software delivery process
Work closely with R&D engineers to create effective CI workflows, with a strong emphasis on tools like GitHub Actions
Work closely with developers to ensure the best developer tools are used
Demonstrate strong proficiency in scripting, especially with Python, while guiding the team in coding excellence and best practices
Work closely with R&D team leaders to ensure the best developer experience.
Optimize CI processes to reduce build times and improve reliability.