דרושים » הנדסה » Senior Backend Engineer

We are looking for a talented and creative Backend Software Engineer to join us. This is a fantastic opportunity to join our excellent team and grow with the company.
If youre dedicated, friendly, appreciate challenges, and looking for something beyond the ordinary Then your place is with us!
A day in the life:
Be responsible for writing fast, optimized code.
Develop real-time blocks both on-prem and in the cloud.
Implement and integrate new logics and flows for the product.
Analyze system bottlenecks and creatively solve them.
work closely with top tier ML researchers.

Were looking for a Senior Backend Infrastructure Engineer (or Tech Lead, for the right candidate) to join our core infrastructure team. This role is all about building and evolving scalable, high-performance backend systems that serve as the foundation for all our product engineering teams.
Youll be responsible for designing and developing distributed systems, owning critical backend infrastructure services, and working closely with architects, DevOps, and product engineers to ensure our platform is reliable, efficient, and future-proof.
In this role, you will be responsible for:
Designing, developing, and maintaining scalable infrastructure services and middleware in a distributed microservices environment.
Leading cross-team backend infrastructure initiatives that impact the entire R&D organization.
Building robust systems that support our product teams with high availability, observability, and fault tolerance.
Partnering closely with architects, DevOps, and backend engineers to define and implement best practices across the stack.
Driving performance improvements and architectural evolution with a long-term vision in mind.
Proactively identifying technical gaps and areas for optimization across our backend infrastructure.

We are looking for a Senior Full Stack Engineer with a strong backend orientation and deep Python experience who excels at solving complex challenges and is passionate about building robust, scalable, and data-driven systems. In this role, you will work closely with a talented team of engineers, Product, Design, and Data Science to deliver innovative solutions that have a meaningful impact on users' lives.

As a senior engineer, you will take ownership of projects from concept to deployment in a fast-paced, highly collaborative environment. Youll focus primarily on backend development, with the ability to contribute to frontend work as needed. Youll also mentor team members and help drive technical excellence.

Responsibilities:
Backend Development: Design, implement, and maintain scalable, efficient, and secure backend services, with a focus on Python and Node.js.
Data Infrastructure: Work with real-time data systems, including Elasticsearch, Vector Databases, and other high-performance storage and retrieval tools.
End-to-End Feature Development: Deliver features across the stack, integrating frontend and backend components.
Collaborate with Data Science to integrate advanced algorithms and ML models into production systems.
Partner with Product Managers and Designers to brainstorm and execute impactful product features.
Ensure system architecture is reliable, maintainable, and built for scale.
Lead by example: contribute to code reviews, mentor peers, and foster engineering best practices.
Stay up to date with emerging technologies and suggest ways to apply them for performance and scalability improvements.

ShiftLeft is building the cloud security platform for developers (CAS). Our platform empowers teams to find, fix, and prevent security risks in application code and infrastructure as code through automation and security-as-code principles. We're looking for a skilled Senior Backend Engineer to join our team and contribute to our Cortex Cloud platform.
As a Senior Backend Engineer, you'll have a high-impact role in shaping the future of our code security products. Beyond building robust and scalable backend features, you'll help drive performance, reliability, and innovation across our systems. Our team leads the way in owning both the departments core infrastructure and Developer Experience (DevEx), empowering the entire engineering organization with powerful internal platforms and tooling. If you're excited by technical challenges, meaningful ownership, and making life easier for developers this is the place for you.
Your Impact
Feature Development: Design, build, and maintain robust backend services using TypeScript/Node.js. Take full ownership of complex, cross-system features from initial requirements through architecture, implementation, and deployment.
Build and Optimize Scalable Systems: Ensure performance, reliability, and cost-efficiency across distributed systems through thoughtful design, deep observability, and continuous optimization.
Platform Engineering & DevEx: Drive platform engineering initiatives by developing the department infrastructure and shared tooling that boost scalability, reliability, and the developer experience across the department.
Own Core Infrastructure: Design, operate, and evolve the departments infrastructure stack including BigQuery, MongoDB, Redis, and Argo Workflows using cloud-native technologies like Terraform, Kubernetes, and Helm.

our company has been defining computer graphics, PC gaming, and accelerated computing for more than 25 years. With an outstanding legacy of innovation, driven by phenomenal technology, and extraordinary people, we are looking for a strong technical senior architect to join us in shaping the future. Senior Architects are innovators who can translate business needs into workable technology solutions. Their expertise is deep and broad. They are hands on, producing both detailed technical work and high-level architectural designs.
As a Senior architect in the Advanced Development team, you will explore technological challenges on accelerate networking and building AI data centers. Research new transport functions and semantics for optimizing AI workloads. You will also be leading architectural and development efforts across numerous technological fields, related to the modern data center, such as distributed AI and deep learning solutions, data analytics, High Performance Computing (HPC), Software Defined Networking (SDN), virtualization, storage, and more.
What youll be doing:
Enhance our company's GPU Networking offerings for accelerating AI workloads, such as our company Dynamo or our company NIXL.
Identify and evaluate new technologies, innovations and partner relationships for alignment with our technology roadmap and business value.
Lead architecture and design of such technologies.
Lead proof-of-concept development to evaluate and drive such technologies.

we are the leader in Behavioral Biometrics, a technology that leverages machine learning to analyze an online users physical and cognitive digital behavior to protect individuals online. our companys mission is to unlock the power of behavior and deliver actionable insights to create a digital world where identity, trust, and ease coexist.Today, 34 of the world's largest 100 banks and 210 total financial institutions rely on our companyConnect to combat fraud, facilitate digital transformation, and grow customer relationships.. our companys Client Innovation Board, an industry-led initiative including American Express, Barclays, Citi Ventures, and National Australia Bank, helps our companyto identify creative and cutting-edge ways to leverage the unique attributes of behavior for fraud prevention. With over a decade of analyzing data, more than 80 registered patents, and unparalleled experience, our companycontinues to innovate to solve tomorrows problems.
Are you an experienced backend developer with a passion for cutting-edge technology? Do you have an interest or background in machine learning, data science, or working with models? we are looking for a backend developer to join a newly formed team and help build core services from the ground up.
As a backend developer at our company, you will work with a team of highly curious and innovative professionals. You will be responsible for developing core services and APIs that handle high volumes of real-time traffic and meet strict SLA response times. Your role will involve complex data processing, aggregation, and research of big data.
While experience in ML/DS is not a requirement, familiarity with ML-based architectures, model deployment, or data-driven decision-making will be considered a strong advantage.

we are widely considered to be one of the technology worlds most desirable employers. We have some of the most forward-thinking and hardworking people in the world working for us and, due to unprecedented growth, our exclusive engineering teams are rapidly growing. If you're a creative and autonomous engineer with a real passion for technology, we want to hear from you.
we are looking for a phenomenal Senior Verification Engineer for HW Simulation for the ChipSim Group. You will join the ChipSim growing team and take our product to next level, working closely with HW design and architect teams and gaining a deep understanding of our companys products and technologies.
What Youll Be Doing:
Develop and maintain robust test environments, verification flows, and infrastructure.
Define and execute comprehensive test plans for existing and next-generation networking features.
Take ownership of functional, integration, and regression testingfrom planning through execution.
Build automated test suites and integrate them into CI pipelines to ensure quality at scale.
Collaborate across architecture, firmware, and HW teams to drive quality and early bug detection.
Analyze complex system behaviors and drive debugging efforts across hardware and software boundaries.

We are looking for an experienced, passionate Senior Backend Engineer (Platform Team) to join our growing TLV R&D location. You'll be joining the backend group to help us expand our infrastructure and add new features to the company's core product.

As a Senior Backend Engineer in our platform team, You'll take part in our effort to improve our product, productivity, security and the ability to scale. Opportunity to make a significant impact by driving the technical direction of a high-growth company.
As a Senior Backend Engineer, you will:
Develop and maintain policies and procedures for software development, deployment, and maintenance. Monitor cloud environments using infrastructure as code methodologies.
Work closely with other teams, such as development and operations, to ensure that our software applications meet the needs of the organization.
Participate actively in code reviews to uphold high standards of quality and maintainability in software development.
Work collaboratively with product teams to design and implement new cloud services and workflows, contributing to the continuous improvement of our platform.
Stay up-to-date with emerging trends and technologies in Cloud, and assess their potential impact on our organization.

Were looking for a Senior Software Engineer to join our ML Data Group. In this role, youll be at the forefront of building our next-generation data platformfrom the ground up. Youll play a key role in shaping our new data offerings and evolving our existing Feature Store, a core component that helps machine learning teams access and manage large-scale, high-quality datasets with ease and speed.Youll work in a fast-paced, collaborative environment alongside other top-tier engineers and data experts. This is a high-impact opportunity to define architecture, implement best practices, and deliver production-grade solutions that will accelerate ML experimentation and deployment at scale.
As a Senior Software Engineer you will...
Design and implement our new ML data offerings from scratch
Improve and scale the existing Feature Store Data Pipelines for performance, reliability, and usability
Develop efficient, scalable data storage solutions for datasets and features
Build robust APIs and services to manage the full lifecycle of datasets and featuresincluding versioning and access control
Ensure data integrity, security, and validation across our platforms
Define and uphold engineering best practices in data management and software development
Collaborate cross-functionally with product, ML, and platform teams
Mentor junior engineers and help shape our engineering culture.

Realize your potential by joining the leading performance-driven advertising company!
As a Senior User Data Engineer in the Demand group in our Tel Aviv office youll play a vital role in developing one of the largest real time big data operations in the world to support over 40TB of new data every day.
Our Tech Stack: Java, JS, TS, Python, Reactive, Spark, Kafka, Hadoop, Cassandra, Vertica, ES, MySQL, Memcached, HDFS, Iceberg, BigQuery, Druid, Kusto, Docker, K8S, Linux, Prometheus, Grafana, Airflow
Gen AI: Cursor, Junie, GitHub Copilot, Langfuse and much more
How youll make an impact:
As a Senior Software Engineer, youll bring value by:
Design, develop, and address scalability challenges in our user data pipeline and identity graph, ensuring efficient handling of high-throughput, high-performance systems
Have end to end ownership: Design, build, ship, measure and maintain our frontend and backend services
Collaborate with the brightest software engineers team members
Influence directly on the way billions of people discover the internet
Develop at unimaginable scale, serving thousands of requests per second
Work on innovative projects that are the next growth engines for our company
Here are some of the things software developers in our group did in the last several months:
A unique data pipeline for processing and managing user data signals
Driving our companys data advantage by leveraging real-time user signals to uncover intent and boost key business performance metrics
Develop a complete user identities graph and find deterministic and probabilistic methods to enrich it
An algorithmic model to predict the performance potential of a specific audience
Infrastructure to create unique audiences for advertisers based on various signals (behavioral, contextual, etc)
An A/B tests system to explore variations and experiments over audiences
Understand and use big data algorithms to estimate key business metrics over billions of impressions
Build user interface using React that serve thousands of users.