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As a Staff Software Engineer, you will be a technical leader who shapes our engineering culture and architecture while mentoring other engineers. We embrace functional programming principles across our stack, leveraging ReScript on the frontend and Elixir on the backend to build robust, maintainable systems.

Our current stack is composed of React, ReScript, Elixir, GraphQL, Docker, and AWS.

What you will do:

Lead the architectural design and implementation of complex, cross-cutting features and systems
Drive technical excellence by establishing best practices, design patterns, and coding standards
Mentor and provide technical guidance to engineering teams across multiple projects
Collaborate with product and engineering leadership to develop technical strategy and roadmaps
Identify and resolve systemic technical issues before they impact product quality
Contribute to high-level technical decisions regarding scalability, performance, and security
Lead complex refactoring efforts to improve system resilience and maintainability
Represent engineering in cross-functional initiatives and stakeholder discussions
Champion innovation while maintaining a pragmatic approach to delivery

As a Senior Software Engineer at Walnut, you will be part of a team thats excited about building amazing products while taking pride in the code that powers it. We embrace functional programming principles across our stack, leveraging ReScript on the frontend and Elixir on the backend to build robust, maintainable systems.

Our current stack is composed of React, ReScript, Elixir, GraphQL, Docker, and AWS.

What you will do:

Own features end-to-end, from development through testing and deployment.
Design and develop full-stack solutions that power our core product features.
Collaborate with stakeholders to define, build, and release new features.
Participate in technical decision-making regarding architecture and technology choices.
Ensure code quality and system security through automation, unit testing, and structured code reviews.
Help maintain and improve our development practices and processes.
Work autonomously and manage priorities effectively in our asynchronous, remote-first environment.

Join us and become part of the already elite team, working on new disruptive technologies. Youll have the opportunity to work with technologies that power the worlds largest cloud provider, within a dynamic, open, and fast-paced environment.
We offer a growing dynamic, open, teamwork environment operating at high pace mode. You will be developing challenging software infrastructure and services using our cloud computing technologies and AI .
We are looking for you, a highly skilled engineer who is a team player, eager to learn and innovate.

Key job responsibilities:
Linux Expertise:
1. Minimum 4 years experience with Linux systems, Redhat family is an advantage..
2. Professional-level coding and critping in Python, Bash, csh,tcl, java.
3. Extensive experience building and maintaining CI/CD pipelines, preferably using Jenkins
4. Advanced knowledge of Git
5. Experience with multi-repository management tools such as Gerrit, GitLab, Repo.
5. Strong experience with Ansible automation.
6. Demonstrated expertise in our cloud infrastructure and services.
7. Experience with cloud-native architectures and solutions.
8. Proficiency with modern monitoring solutions including OpenSearch, Zabbix, Grafana, Prometheus, and Loki.
9. Strong fundamentals in networking, including: TCP/IP, secure data transfer, network troubleshooting capabilities.
10. Containers - Practical experience with Docker containerization, Familiarity with Kubernetes, particularly our EKS.

A day in the life:
Proven ability to lead projects in a multi discipline environment , big CI environment, HPC and EDA flows.
Independent, self-starter and team player.
Ability to effectively communicate (verbal and written correspondence in English) in a professional and courteous manner.
Robust troubleshooting and strong analytical skills with demonstrated problem solving ability required.
Technical aptitude. Written and oral communications skills.
Project management and the ability to deal effectively with people at all levels (technical and business audiences) and in different situations. This includes the ability to develop clear, concise documentation.

We are looking for an experienced engineer, to help us develop our cutting-edge semiconductor platform.
Youll have the opportunity to join a top-tier, agile, fast-paced team, and take part in the development of the technology that powers the worlds largest cloud provider.
Our Web Services offers a highly reliable, scalable, low-cost cloud platform that enables hundreds of thousands of businesses in 190 countries around the world.
We are looking for talented people to join the Chip Design team in TLV, working on the Nitro product line.
Take an active, significant part in developing the next generations of products that will enable AWS to be the lead in the Cloud sector.

To apply: please compile your CV and university grades sheet into 1 pdf, without both documents, your application cannot be considered.

Key job responsibilities:
Full ownership of one or more IPs within the product:
- Micro-architecture.
- RTL coding and debug.
- Synthesis and timing closure.
- Sign-off.
Supporting the Verification and Emulation teams:
- Test plan.
- Coverage review.
Ensuring that the chip meets quality and reliability standards
Collaborating with cross-functional teams, including Product Definition, Verification, Software, and Physical design.

We are seeking an exceptional Applied Scientist to join our Prime Video Sports tech team in Israel. Our team is dedicated to developing state-of-the-art science to allow for personalizing the customers experience and customers to seamlessly find any live event in our selection. You will have the opportunity to work on innovative, large-scale projects that push the boundaries of what's possible in sports content delivery and engagement. Your expertise will be crucial in tackling complex challenges such as temporal information retrieval, leveraging Generative AI and Large Language Models (LLMs), and building state-of-the-art recommender systems.

Key job responsibilities:
We are looking for an Applied Scientist with domain expertise in Personalization, Information Retrieval, and Recommender Systems, or general ML to lead the development of new algorithms and end-to-end solutions. As part of our team of applied scientists and software development engineers, you will be responsible for researching, designing, developing, and deploying algorithms into production pipelines. Your role will involve working with cutting-edge technologies such as Gen AI/LLMs to enhance content discovery and search capabilities. You'll also tackle unique challenges like temporal information retrieval to improve real-time sports content recommendations. As a technologist, you will drive the publication of original work in top-tier conferences in Machine Learning and Information Retrieval. We expect you to thrive in ambiguous situations, demonstrating outstanding analytical abilities and comfort in collaborating with cross-functional teams and systems. The ideal candidate is a self-starter with the ability to learn and adapt quickly in our fast-paced environment.

As a Technical Support Specialist, you will be responsible for the analysis, processing, technical recommendation and resolution of technical inquiries, cases and requests from all customer segments.
The role is customer-facing support role and will require interactions via our self-service portal, emails, chats, and a few inbound calls. Collaboration with customers to deliver superior customer experience, leveraging effective communication and problem-solving skills to ensure their needs are met with satisfaction.
The ideal candidate should be flexible, detail-oriented, have a strong support background and highly skilled at working with customers directly. The position requires willingness to be trained in one of our Continuous Testing Platform which include but is not limited to the following: Tosca, qTest, NeoLoad, LiveCompare, Vera, Test Automation, Testim and Data Integrity.
The position requires the candidate to be detail oriented, work with minimal supervision, good research skills and above-average problem solving skills to handle simple to more complex customer cases. In addition, a good background in system analysis, design and functional support is needed to determine potential software bugs.
The position will also require the candidate to work closely with our R&D team and with Customer Success on customer-related issues and tasks to ensure our customers receive a product-tailored appropriate solutions.
The position will also give the candidate the the opportunity to troubleshoot and support various software configurations and run appropriate testing & diagnostics, providing our customers with professional technical support. Youll collaborate with the R&D and product teams, and learn about software engineering processes.

We are looking for an experienced backend engineer to help us evolve our virtual mobile device orchestration platform. Thanks to your work, our customers will be able to instrument virtual mobile devices to record and replay automated tests for their mobile applications, and to analyze test results with help of comprehensive data we collect during the test execution. You would have ownership of the whole flow between the platform backend and our services running on the Android emulators.

You would be:

Proposing, designing and implementing changes in our backend platform services to support robust and reliable communication with our farm of virtual mobile devices, supporting new ways of instrumentation of those virtual devices to record test cases or perform playback of tests and collection of test results and troubleshooting data.

Improving on our services running on Android OS which provide low level device instrumentation.

Solving complex engineering problems that may include reverse engineering and hacking the Android realm to expose unique features to our customers.

Collaborating with the rest of the team to achieve high SLA for our services and using observability tools to detect and troubleshoot issues in our staging and production environments.

We are looking for a Manager, Support located in Tel Aviv to become a key member of our global support leadership team. This role includes responsibility for the EMEA Testim Support organization, who are engaged in assisting customers and partners in technical issue identification and resolution. The support organization specializes in high-end, enterprise level support of customers or partners with advanced support needs.

The Manager, Support will oversee staff schedules for omnichannel coverage and individual as well as group training sessions. They will conduct quarterly 1:1 and team meetings to evaluate individual and team performance and will facilitate development of proficiency in both technical skills and general customer service skills.

Primary duties:
Deliver superior level service to end user customers and act as point-of-contact for escalated issues to ensure appropriate response and focus of support teams.
Participate regularly in strategic planning discussions to provide insightful ideas on process improvements and customer service delivery.
Conduct regular team meetings and performance discussions with support engineers.
Interact with regional and corporate management on matters between functional areas or customers and the company.
Track, monitor and report on department operations, and closely manage critical customer accounts to develop path to issue resolution.
Perform monitoring to ensure that support engineers are following the call priority flow and maintaining an available phone status, documenting the issues well, and following cases through to efficient and effective resolution.
Assign and manage projects based on new product releases, call related issues and/or training needs within the organization. Track projects and initiate documentation based on project successes.

We are seeking a passionate, dynamic, and skilled SW Development engineer, who shares our vision of assisting development departments and teams, in successfully navigating the product development process and DevOps.


Key Responsibilities we are looking for:
Understand the clients needs and build a work plan that meets its goals.
Committed to expertise in variety of fields to lead the clients to success.
Lead and mentor development teams to enhance their skills and knowledge.
Continuously improve, learn and stay up to date with the latest technologies and best practices.

Our Data Solutions Group is looking for an exceptional Python developer with Data Engineering experience.

We are looking for a talented and experienced big data engineer to join our cyber defence group to take over a cutting-edge data solution.

The successful candidate should have hands-on experience with big data processing technologies and architectures.

The candidate will join our growing team of analysts, developers, data scientists, and architects who design and develop innovative solutions to the most critical needs of our customers.



Responsibilities

Designing, architecting, implementing, and supporting our data pipelines and processing flows.
Collaborate with analytics department to analyze and understand data sources.
Provide insights and guidance on database technology and data modelling best practices.
Insure the maintenance of data integrity, managing data and analysis flows with attention to detail and high responsibility.
Implementing algorithms with our data scientists.

We seek a passionate senior DevOps engineer with a can-do approach to join our DevOps team. The DevOps team is responsible for writing and maintaining CI/CD pipelines and automating infrastructure provisioning, allowing our R&D teams to meet their ambitious goals.



Key Responsibilities:



Architect, develop, and optimize robust CI/CD pipelines to streamline software delivery and deployment processes.
Automate, orchestrate, and enhance mission-critical infrastructure while ensuring system scalability, security, and high availability.
Collaborate closely with R&D, product teams, and engineers to understand challenges and provide tailored DevOps solutions.
Continuously evaluate, refine, and innovate DevOps methodologies, tools, and best practices to maximize efficiency.
Troubleshoot and resolve complex issues across development, testing, and production environments, ensuring seamless system operations.
Operate with a DevOps-first mindset, championing collaboration, automation, and observability.
Stay ahead of the curve with emerging technologies, industry trends, and best practices, driving continuous improvement.

As an Embedded security researcher, you will be dealing with:

● Embedded systems Reverse engineering.

● Real-time Embedded End-to-End Low Level software developments on various unique embedded platforms and environments.

We are looking for a senior embedded software engineer to join us in researching and developing cutting-edge cyber security projects.



Responsibilities

As an Embedded researcher and developer, you will be dealing with:

● Real-time Embedded End-to-End Low-Level software development on various unique embedded platforms and environments.

● Researching complex Embedded systems.

we are looking for an experienced R&D Team Lead to head a talented group of engineers developing critical components for an advanced security solution running on Windows. Our core product is a C++ agent deployed on customer endpoints, supported by robust Python infrastructure.

This is a hands-on leadership role combining technical excellence with team management. Youll work closely with our Core, Research, and Module teams to develop features in both User Mode and Kernel Mode, while ensuring top-tier software quality, reliability, and performance. We operate in a modern CI/CD environment using Docker and automation pipelines.



What You'll Be Doing

Lead and mentor a team of 45 experienced software engineers

Own end-to-end development processes: research, design, coding, testing, and deployment

Collaborate with cross-functional teams across a ~5-team R&D group

Set coding standards and best practices for C++ and Python in both user and kernel space

Design and maintain CI/CD processes for mission-critical system components

Ensure code quality, documentation, and robust review processes

Communicate with external partners and customers when needed