Blockchain software engineer

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Blockchain software engineer

ריקרוטיקס בע"מ

Location: More than one

Job Type: Full Time and Hybrid work

We are developing a new block builder to democratize and counter centralization in the Ethereum ecosystem.
Our block builder augments the capabilities of the Ethereum network and enables new Defi primitives.

We're seeking an experienced Ethereum backend Developer proficient in deep blockchain protocols and Rust to join our team.
In this role, you will:
Design high-performance systems optimized for low latency and scalability, with direct impact on the mainnet, contributing to a fairer and more efficient Ethereum network.
Design and develop scalable backend services in Rust, focusing on ultra?low latency and high throughput for Ethereum payload submission and block construction.
Architect and implement builder-relay payload protocols (e.g. MEV?Boost), enabling in?slot timing optimization, censorship?resistance, and ultra?parallelized block generation.

Requirements:
Strong understanding of Ethereum protocols, including PBS/MEV?Boost flows, fork?choice logic, slot/epoch timing, and relay security - a must.
Expertise in Rust (async, zero?cost abstractions, performance tuning) - a must.
Familiarity with Go or C ++ - an advanatge.
Proficiency in Python for simulation, data analysis, and tooling - a must.
10+ years of SW developement experience - a must.
At least 2 years of experience in building on top of off-chain protocols - a must.
Experience with revM, reth/geth internals, or similar blockchain development tools - a must.
Prior contributions to core Ethereum clients, EIPs, or open?source MEV tooling - an advantage.
Hands?on with Kubernetes, Docker, and bare?metal performance tuning - an advantage.

This position is open to all candidates.

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25/12/2025

Staff Design Engineer, Networking, Cloud

חברה חסויה

Location: Tel Aviv-Yafo and Haifa

Job Type: Full Time

Be part of a team that pushes boundaries, developing custom silicon solutions that power the future of our company's direct-to-consumer products. You'll contribute to the innovation behind products loved by millions worldwide. Your expertise will shape the next generation of hardware experiences, delivering unparalleled performance, efficiency, and integration.
In this role, you will be part of a team developing Application-specific integrated circuits (ASICs) used to accelerate networking in data centers. You will have multiple responsibilities in areas such as project definition, design, and implementation. You will participate in the design, architecture, documentation, and implementation of the next generation of data center accelerators.You will also be responsible for performance analysis for an end-to-end networking stack using your knowledge.
The ML, Systems, and Cloud AI (MSCA) organization at our company designs, implements, and manages the hardware, software, machine learning, and systems infrastructure for all our company services (Search, YouTube, etc.) and our company Cloud. Our end users are our companyrs, Cloud customers and the billions of people who use our company services around the world.
We prioritize security, efficiency, and reliability across everything we do - from developing our latest TPUs to running a global network, while driving towards shaping the future of hyperscale computing. Our global impact spans software and hardware, including our company Clouds Vertex AI, the leading AI platform for bringing Gemini models to enterprise customers.
Responsibilities
Lead an ASIC subsystem.
Understand how it interacts with software and other ASIC subsystems to implement data center networks.
Define hardware/software interfaces. Write micro architecture and design specifications.
Define efficient micro-architecture and block partitioning/interfaces and flows.
Collaborate closely with software, verification, and physical design stakeholders to ensure the designs are complete, correct, and performant.

Requirements:
Minimum qualifications:
Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field, or equivalent practical experience.
10 years of experience architecting networking ASICs from specification to production.
Experience developing Register-Transfer Level (RTL) for ASIC subsystems.
Experience with cross-functional engagement in micro-architecture, design, verification, logic synthesis, and timing closure.
Preferred qualifications:
Experience working with software teams optimizing the hardware/software interface.
Experience working with design networking like: Remote Direct Memory Access (RDMA) or packet processing and system design principles for low latency, high throughput, security, and reliability.
Experience in Transmission Control Protocol (TCP), IP, Ethernet, Peripheral Component Interconnect Express (PCIE) and Dynamic Random Access Memory (DRAM) including Network on Chip (NoC) principles and protocols (AXI, ACE, and CHI).
Experience architecting networking switches, end points, and hardware offloads.
Understanding of packet classification, processing, queuing, scheduling, switching, routing, traffic conditioning, and telemetry.
Proficiency in procedural programming language (e.g., C++, Python, Go).

This position is open to all candidates.

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22/12/2025

Principal Storage Kernel Software Engineer, Linux - DGX Cloud

חברה חסויה

Location: Tel Aviv-Yafo

Job Type: Full Time

We are looking for a 100% hands-on Storage Services Software engineer to join the block storage group. You will be a member of a team that builds the next generation block storage capabilities. You will work closely with a variety of teams and architects including the networking team, and external customers. You will take part in defining the software architecture and implementation of the most advanced storage services! Services that will need to meet extreme performance and scalability demands! We have crafted a team of extraordinary people stretching around the globe, whose mission is to push the frontiers of what is possible today and define the platform of tomorrow.
At our company, we work, think and learn as a team. We thrive in a deeply strong environment, and we're passionate about a culture that demands innovation and the highest standards. The rewards are sweet and include collaborating with some of the smartest people in the industry, an aggressive compensation plan that rewards top performers, and the opportunity to work on products that transform the way people work and play.
What youll be doing:
100% hands-on coding role in C language, kernel and userspace
Research, design, implement and test, new and existing, distributed storage services and features of our companys block storage solution, in both Host and DPU environments.
Acquire understanding of the algorithms, the technicalities and the interaction with other components across our companys block storage ecosystem.
Analyze and solve challenging bugs and customer cases in large scale production systems, identifying issues in our or inbox kernel modules and often in other components. Drive new solutions based on any issues that arise.

Requirements:
B.Sc., M.Sc.. in Computer Science, Electrical Engineering or related discipline (or equivalent experience).
15+ years of experience as a senior developer, preferably in the domains of storage, networking, and/or operating-systems.
Strong proficiency in C/C++ programming.
Experience with storage protocols and standards, especially NVMe
Experience with Linux block subsystem and IO stack
Proven professional experience in designing and developing distributed systems; advantage for experience in block storage and/or networking systems.
Ability to work autonomously, with a proactive mindset and perseverance to solve day to day challenges.
Ability to quickly adapt to new technology and go deep into new areas
Excellent communication skills and a collaborative mindset.
Innovative approach, identifying opportunities to improve, accelerate, and reuse existing solutions.
Knowledge of cloud computing concepts, including virtualization, scalability, and data management.
Ways to Stand Out From the Crowd:
Linux Kernel coding experience
Linux Kernel internals knowledge including memory management, scheduling, etc.

This position is open to all candidates.

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01/12/2025

Senior Software Engineer - Low Level Expert

חברה חסויה

Location: Tel Aviv-Yafo

Job Type: Full Time

We are looking for a motivated and experienced Senior Software Engineer to join our Cloud and K8s Group. The successful candidate will possess a strong technical background in low-level systems programming and will excel in developing performant, efficient, and reliable software across multiple operating systems. Expertise in C++ and deep knowledge of Linux, macOS, and Windows internals are essential for this role, as you will be instrumental in building and optimizing our agent.

Key Responsibilities:

Design, implement, and optimize low-level system software components and libraries with a focus on performance and efficiency.
Analyze and debug complex issues related to operating system internals (kernel, drivers, memory management) across Linux, macOS, and Windows platforms.
Develop networking capabilities and optimize networking stack interactions within software modules.
Write clean, maintainable, and well-tested C++ code, while mentoring and reviewing peers contributions.
Collaborate closely with infrastructure, security, and product teams to design scalable and secure systems.
Contribute to CI/CD pipelines and automation workflows to streamline build, test, and deployment processes.
Develop and maintain scripting tools (e.g., Python, Bash, PowerShell) to support development and operational tasks.
Stay up to date with emerging technologies in systems programming, cybersecurity, and networking to continuously improve our solutions.

Requirements:
Bachelor's or Masters degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
Minimum of 5 years experience in software development with a strong focus on C++ and low-level programming.
Deep understanding of Linux, macOS, and Windows internals including kernel architecture, system calls, process and memory management.
Strong knowledge of networking protocols and experience writing performant and efficient code.
Experience with Golang is an advantage.
Background or interest in cybersecurity is a plus.
Familiarity with .NET development is beneficial.
Experience with CI/CD tools and pipelines (e.g., Jenkins, GitHub Actions) is preferable.
Proficient in scripting languages such as Python, Bash, or PowerShell.
Strong problem-solving skills and ability to work independently and in a team environment.
Excellent communication and collaboration skills.

This position is open to all candidates.

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6 ימים

Software Engineer (Rust)

חברה חסויה

Location: Tel Aviv-Yafo

Job Type: Full Time

The Data Collection team is responsible for essential security components, including the Collector, Cyshark, and Collector Gateway. Our mission is to develop and maintain high-performance, deep packet inspection software. This critical software operates across customer sites and cloud endpoints globally, ensuring secure data acquisition from all servers. We are a Rust-focused team committed to designing scalable, production-ready systems.
Responsibilities
Develop high-performance deep packet inspection software for deployment at customer sites and cloud data endpoints.
Design and lead the development of new feature sets and architectural changes for core data collection components.
Take systems from development through to production, focusing on performance, and ensuring ongoing maintenance.
Apply expertise in Rust development to implement solutions with strict attention to system performance.

Requirements:
3 or more years of professional experience in software development.
Expertise in Linux programming and backend system development.
Proficiency in Rust or equivalent experience in C/C++ with strong desire and commitment to transitioning to Rust development.
Demonstrated experience in taking and maintaining complex systems in production environments.
Preferred Qualifications
Experience with on-premise software development for Linux.
Knowledge of additional programming languages like Python or Go.
Familiarity with common network protocols (e.g., IPv4, IPv6, TCP, UDP, DHCP, ARP).
Experience using AI techniques to enhance or accelerate development processes.

This position is open to all candidates.

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19/12/2025

Senior software engineer - Low Level Expert

חברה חסויה

Location: Tel Aviv-Yafo

Job Type: Full Time

We are looking for a motivated and experienced Senior software engineer to join our Cloud and K8s Group. The successful candidate will possess a strong technical background in low-level systems programming and will excel in developing performant, efficient, and reliable software across multiple operating systems. Expertise in C ++ and deep knowledge of Linux, macOS, and Windows internals are essential for this role, as you will be instrumental in building and optimizing our agent. Key Responsibilities:
* Design, implement, and optimize low-level system software components and libraries with a focus on performance and efficiency.
* Analyze and debug complex issues related to operating system internals ( Kernel, drivers, memory management) across Linux, macOS, and Windows platforms.
* Develop networking capabilities and optimize networking stack interactions within software modules.
* Write clean, maintainable, and well-tested C ++ code, while mentoring and reviewing peers contributions.
* Collaborate closely with infrastructure, security, and product teams to design scalable and secure systems.
* Contribute to CI/CD pipelines and automation workflows to streamline build, TEST, and deployment processes.
* Develop and maintain scripting tools (e.g., Python, Bash, PowerShell) to support development and operational tasks.
* Stay up to date with emerging technologies in systems programming, cybersecurity, and networking to continuously improve our solutions.

Requirements:
* Bachelor's or Masters degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
* Minimum of 5 years experience in software development with a strong focus on C ++ and low-level programming.
* Deep understanding of Linux, macOS, and Windows internals including Kernel architecture, system calls, process and memory management.
* Strong knowledge of networking protocols and experience writing performant and efficient code.
* Experience with Golang is an advantage.
* Background or interest in cybersecurity is a plus.
* Familiarity with.NET development is beneficial.
* Experience with CI/CD tools and pipelines (e.g., Jenkins, GitHub Actions) is preferable.
* Proficient in scripting languages such as Python, Bash, or PowerShell.
* Strong problem-solving skills and ability to work independently and in a team environment.
* Excellent communication and collaboration skills.

This position is open to all candidates.

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6 ימים

Principal Engineer

חברה חסויה

Location: Tel Aviv-Yafo

Job Type: Full Time

we are a global leader in control systems for quantum computing, a field on the verge of exponential growth.
Our innovative hardware and software mark a groundbreaking approach in quantum computer control, scaling from individual qubits to expansive arrays of thousands.
At the core of our company lies a passionate and ambitious team committed to reshaping the construction and operation of quantum computers. Our work is fueled by a deep understanding of customer needs, driving us to deliver unparalleled solutions in this revolutionary field.
Were seeking a Principal Engineer to drive cross‑disciplinary design and execution across all R&D teams. This role spans Embedded/Linux, Backend (Java/Kotlin), Python SDK, Compiler, and Logic Design/Verification, owning multi‑team epics end‑to‑end-from planning and interface definition to high‑quality delivery. Youll be the technical driver and execution leader: aligning architecture with product needs, orchestrating interfaces between teams, de‑risking integration, and staying 50-70% hands‑on to unblock execution.
Youll thrive here if you love complex systems, multi‑threaded and real‑time challenges, hardware/logic/software co‑design, and building resilient, production‑quality systems for cutting‑edge quantum computing products.
Responsibilities
Cross‑Disciplinary Ownership & Delivery
Own several multi‑disciplinary epics concurrently; define scope, plan milestones, manage risks, and deliver on time with high quality.
Translate product outcomes into technical roadmaps and cross‑team work breakdown structures.
Architecture, Interfaces & Integration
Define and maintain interface contracts (APIs, protocols, HW/logic/SW boundaries, timing & resource constraints) across teams.
Establish integration readiness criteria; lead integration plans, dry‑runs, and cross‑stack troubleshooting.
Drive architectural decisions balancing performance, reliability, testability, and maintainability.
Hands‑On Technical Leadership (50-70%)
Contribute code/designs in at least two disciplines (e.g., Embedded C/C++/Linux, Python SDK, Java/Kotlin backend, compiler/LLVM/MLIR, Logic Design/Verification).
Build POCs, profiling harnesses, and integration tooling to de‑risk complex paths.
Perform deep dives on performance, concurrency, and resource utilization in HW‑constrained environments.
Quality, SDLC & Execution Excellence
Champion clean architecture, code reviews, automated testing, CI/CD, and production hardening.
Define non‑functional requirements and acceptance gates for cross‑team epics (latency, throughput, accuracy, reliability).
Lead technical reviews; ensure documentation (design docs, interface specs, runbooks) is complete and up‑to‑date.
Mentorship & Stakeholder Management
Mentor senior engineers, set engineering standards, and grow cross‑disciplinary capabilities.
Interface with Product, Architecture, and all development teams; communicate risks and trade‑offs clearly and early.

דרישות:
Must‑Have
10+ years hands‑on engineering spanning at least two R&D disciplines (e.g., Embedded/Linux, Backend, Python SDK, Compiler/Low‑Level, Logic Design/Verification).
5+ years management experience (direct line or dotted‑line) leading cross‑team delivery.
Proven track record shipping production‑grade systems at scale, including multithreaded and distributed components.
Expertise in systems & software architecture and design patterns; strong code quality and testing discipline.
Experience leading interface definition and integration efforts across multiple teams.
Strong English communication; comfort in cross‑geography, multi‑site collaboration.
Education
B.Sc. or higher in Computer Science, Electrical Engineering, Physics, Computer Engineering, Mathematics, or equivalent.
Preferred המשרה מיועדת לנשים ולגברים כאחד.

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27/11/2025

Senior Golang Engineer

חברה חסויה

Location: Tel Aviv-Yafo

Job Type: Full Time

We are seeking a passionate and highly skilled Senior Golang Developer to join our dynamic Software Engineering team. The ideal candidate is an expert Go engineer with a strong background in building scalable, high-performance distributed backend systems on the cloud. You should be enthusiastic about working with cutting-edge technologies in an Agile environment and capable of owning complex components end-to-end, taking an idea through design, testing, and production monitoring.

What will you do:
Responsible for the full lifecycle of our distributed services, focusing on performance, reliability, and innovation: Design & Development
* Architect, design, and implement robust backend services and distributed system components using Go, ensuring high scalability, reliability, and performance.
* Develop microservices and server side infrastructure with clean, maintainable, and testable code.
* System Ownership: Take full ownership of complex components, moving them from initial concept design through development, testing, CI/CD, and production deployment and monitoring. System Optimization & Data
* Optimize service performance, parallel processing, concurrency handling, and resource utilization in high-scale environments.
* Work with a variety of data stores and event-streaming technologies.
* Integrate services with technologies like OpenSearch, Redis, and column store databases as part of the system architecture.
* Implement secure development practices and production ready standards. Collaboration & DevOps
* Work closely with Data Engineering, DevOps, and Product teams to deliver high quality, production grade services.
* Develop and deploy applications in Kubernetes environments, leveraging strong DevOps best practices and CI/CD pipelines for smooth, reliable releases.
* Participate actively in code reviews, design discussions, and cross team technical initiatives. Innovation
* Explore new technologies, evaluate tools, and propose improvements to the existing stack and development processes, championing a culture of continuous improvement and technical excellence.

About Us:
Cynet is a leader in threat detection and response, designed to simplify security for organizations of all sizes. Our mission is to empower lean security teams and their partners with an AI-powered, unified platform that autonomously detects, protects, and responds to threats - backed by 24×7 security experts. With a Partner First mindset , we focus on helping customers and partners stay protected, operate confidently, and achieve their goals. Our vision is to give every organization true cybersecurity peace of mind, providing fast, accurate protection without the noise or complexity.

Requirements:
* 5+ years of backend software development experience.
* 3+ years of hands on experience developing production services in Golang at a senior level.
* Deep understanding of distributed system concepts, microservices architecture, concurrency, and performance optimization in Go
* Strong experience building large, fault tolerant systems on Cloud platforms (AWS ecosystem experience is a significant advantage)
* Experience with SQL and NoSQL databases
* Hands-on experience with event streaming technologies (Kafka)
* Expertise with Docker and proven experience deploying and managing applications in Kubernetes in production environments.
* Solid understanding of CI/CD pipelines, unit/integration testing, and Agile methodologies
* Bachelor’s or Master’s degree in Computer Science or experience in a related technical field
* Strong ownership mentality, collaboration skills, and the ability to lead by technical example
* Ability to operate effectively in a fast paced, innovative environment, driving technical solutions autonomously
* Excellent verbal and written communication skills in English.

This position is open to all candidates.

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03/12/2025

Software Engineer Networking Group

חברה חסויה

Location: Tel Aviv-Yafo

Job Type: Full Time

We are looking for a passionate and experienced Backend Engineer to join our Networking Group.
In this role, you will play a key part in developing our cloud-based, proprietary networking and security management solutions.
You will also design and implement highly scalable processes for gathering and analyzing real-time network statistics, events, and large-scale data.
Responsibilities:
End-to-end backend development: from processing large-scale data to designing efficient microservices.
Develop and enhance high-performance, scalable services.
Improve the reliability, security, and scalability of existing infrastructure.
Work closely with cross-functional teams including Product, Data, Security, and UX.
Research and adopt new technologies to improve our products.

Requirements:
4+ years of hands-on experience in backend development.
Strong expertise in Java, and Spring Boot, (Go - advantage).
Understanding of networking concepts (e.g., TCP/IP, DNS, VPNs, network protocols).
Deep understanding of Object-Oriented Programming and software engineering principles.
Experience with databases: NoSQL (Elasticsearch, Redis, MongoDB) and relational (MySQL).
Familiarity with microservices architecture and technologies (Docker, K8S).
Experience with cloud technologies (AWS/Azure/GCP).
Experience with React, TypeScript, and GraphQL advantage.
Strong problem-solving skills, self-learning ability, and team collaboration mindset.
B.Sc. in Computer Science or equivalent.

This position is open to all candidates.

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28/12/2025

Senior Backend Engineer

חברה חסויה

Location: Tel Aviv-Yafo

Job Type: Full Time

We are looking for a talented Senior Backend Developer to join our Infrastructure Team, supporting the server-side foundation of our mobile security product. Our team builds and maintains the core microservices and backend infrastructure that power protection, monitoring, and real-time decision-making for millions of mobile devices worldwide.

You will work in a hybrid environment, collaborating closely with highly skilled engineers within an agile, sprint-based process. This role is central to ensuring the performance, reliability, and scalability of our backend ecosystem, enabling seamless integration with mobile clients and supporting global, multi-region deployments.

Key Responsibilities
Design, develop, and maintain high-quality backend microservices and internal infrastructure components for our large-scale platform.
Own features end-to-end in an agile CI/CD environment-architecture, implementation, testing, deployment, and ongoing improvement.
Ensure the scalability, reliability, and resilience of infrastructure services supporting a rapidly growing global user base.
Work extensively with distributed systems, including technologies such as PostgreSQL, Redis, RabbitMQ, and Elasticsearch, optimizing performance and resource usage.
Implement and uphold observability best practices (metrics, logs, tracing) using tools like Prometheus and Grafana to maintain system health and diagnose issues quickly.
Collaborate closely with product managers, client-side developers, and DevOps teams to deliver robust, secure, and efficient infrastructure capabilities.
Drive continuous improvement by evaluating and adopting new tools, frameworks, and architectural patterns that contribute to operational excellence.
Mentor and guide other engineers, contributing to a culture of technical leadership, ownership, and knowledge sharing.

Requirements:
BA/BSc in Computer Science or equivalent practical experience.
5+ years of experience in backend development, preferably in infrastructure- or platform-oriented teams.
Strong expertise in Java (Spring / Spring Boot or similar frameworks).
Experience building and maintaining distributed, cloud-native microservices.
Hands-on experience with relational databases (PostgreSQL, MySQL, SQL Server).
Proficiency with Docker, Kubernetes, and modern CI/CD pipelines.
Strong understanding of distributed architectures, service-to-service communication, and high-availability design.
Excellent collaboration and problem-solving skills, with the ability to thrive in cross-functional environments.

This position is open to all candidates.

עדכון קורות החיים לפני שליחה

8475303

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תוכל לצפות בה בדף המשרות שלי

המשרה הוחזרה לרשימת תוצאות החיפוש

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אירעה שגיאה בשליחת פרטיך למשרה

22/12/2025

Senior Full Stack Engineer

חברה חסויה

Location: Tel Aviv-Yafo

Job Type: Full Time

As our company continues to grow, an exciting opportunity awaits for a dynamic individual to join our R&D team as a Senior Full Stack Engineer. We are looking for a highly experienced Python developer to take end-to-end ownership of our entire stack. This role requires deep expertise in architecting scalable, modular, and distributed systems, a proven ability to craft modern frontend experiences, and a strong background in integrating AI-driven capabilities. The ideal candidate will be responsible for everything from data pipelines and architecture to user-facing features and the implementation of LLM-powered intelligence.

Responsibilities
Design, build, and scale backend services, APIs, MCPs, and data pipelines to support high performance, reliability, and growth
Architect and implement distributed, event-driven solutions using technologies like Kafka, RabbitMQ, or similar brokers.
Design robust systems and database models to ensure efficient data flow, maintainability, and support for AI-driven features across the stack.
Integrate Large Language Models (LLMs) into core systems, applying prompt engineering techniques to power intelligent, high-performance capabilities.
Build frontend features using modern frameworks and deliver intuitive, user-centric interfaces aligned with business and product goals.
Write clean, maintainable, and testable code with strong attention to quality, observability, and scalability.
Collaborate with product, design, and engineering teams to align technical solutions with business priorities.
Drive technical design discussions, mentor other developers, and contribute to overall architectural strategy.
Take ownership of development tasks from design and implementation through deployment, monitoring, and iteration.

Requirements:
5+ years of professional experience in designing, building, and scaling production-grade systems.
Deep backend & system architecture expertise, including scalable APIs, background jobs, data pipelines, database modeling (SQL/NoSQL), indexing, and performance tuning.
Solid experience building modern frontend applications using component-based frameworks (e.g., React, Vue) with strong UX thinking.
Proficiency in cloud-native & AI integration, including AWS/GCP/Azure, Kubernetes, and hands-on experience integrating LLMs (with knowledge of prompt engineering).
Strong engineering fundamentals & collaboration, with a grasp of algorithms and data trade-offs, a commitment to clean/testable code, and excellent communication skills.

This position is open to all candidates.

עדכון קורות החיים לפני שליחה

8467922

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