We are looking for an experienced Senior Backend Engineer to join our SaaS platform team.
As part of our platform team, youll design and implement high-impact backend services, collaborate with frontend, DevOps, and product teams, and play a key role in shaping the next generation of our companys SaaS security architecture.
Youll help build and evolve the backend infrastructure that powers our cloud-native security platform, delivering advanced protection, observability, and scalability at global scale.
If youre passionate about solving complex backend challenges, scaling distributed systems, and driving innovation in cybersecurity, this is the place for you.
Key Responsibilities
Design, develop, and maintain cloud-native backend services supporting a large-scale SaaS security platform.
Build scalable, secure, and resilient architectures using modern AWS services (EKS, ECS, EC2, RDS, SQS, CloudFront, IAM).
Develop and optimize RESTful and event-driven APIs, backend integrations, and data flows.
Work in a microservices-based environment, ensuring high availability, observability, and performance.
Collaborate closely with frontend, DevOps, and product teams to deliver end-to-end solutions.
Implement monitoring, alerting, and reliability best practices for production environments.
Write clean, maintainable, and testable code, contributing to best practices and design standards.
Participate in architecture and design reviews, influencing the technical direction of the platform.

We are seeking a Backend Developer with a deep understanding of web application architecture, server-side programming, and a passion for optimizing backend systems. The ideal candidate will thrive in a collaborative environment and bring a wealth of experience to help maintain and improve the performance of our backend systems, ensuring high availability, scalability, and reliability.
As a Backend Developer, you will play a key role in developing and maintaining robust, efficient, and scalable Python-based backend systems. This includes building and optimizing data storage solutions, implementing APIs, and managing databases using clean and maintainable code. Youll be part of a dynamic team dedicated to solving complex technical challenges and delivering solutions that meet client and team requirements.

Role:
Build and optimize Python-based backend services and APIs to deliver real-time content recommendations with low latency across multiple data centers.
Handle large-scale data processing and ensure the performance and scalability of backend systems.
Design and implement efficient data storage and retrieval mechanisms using databases like PostgreSQL, MySQL, and NoSQL systems (Redis, Elasticsearch).
Integrate with cloud platforms (AWS, GCP, or similar) to deploy and manage backend services, ensuring high availability and fault tolerance.
Collaborate with cross-functional teams to understand business requirements and translate them into effective backend solutions.
Write clean, maintainable, and well-documented Python code that adheres to industry best practices.
Stay up-to-date with emerging technologies and trends in backend development, and continuously improve the backend stack.

We are looking for a talented Senior Backend Developer to join our development team. As part of the team, you will contribute to building and enhancing high-scale, multi-tenant SaaS products that support customers worldwide. You will work in a hybrid environment, collaborating closely with highly skilled engineers in an agile, sprint-based methodology. This role is critical to the continued success of our next-generation security and monitoring platforms, ensuring performance, scalability, and reliability across multiple regions and tenants.
Key Responsibilities
Architect, design, and develop robust, high-quality backend services and APIs for our large-scale SaaS platform.
Own the end-to-end delivery of features in an agile, CI/CD environment, from conception to deployment.
Ensure the scalability, resilience, and high performance of our applications to support a rapidly growing, multi-tenant customer base across multiple regions.
Integrate with and optimize a diverse set of distributed data systems, including PostgreSQL, Redis, RabbitMQ, and Elasticsearch.
Champion and implement observability best practices (metrics, logging, tracing) using tools like Prometheus, Grafana, and OpenTelemetry to ensure system health and proactive monitoring.
Collaborate closely with product managers, frontend developers, and DevOps engineers to translate customer needs into impactful technical solutions.
Continuously explore, evaluate, and adopt new technologies to enhance our architecture and development efficiency.
Mentor and guide other developers, fostering a culture of technical excellence and knowledge sharing.

We are looking for a top-notch Senior Software Engineer to help us tackle the toughest challenge in cybersecurity: turning endless amounts of data into crisp, easy, and actionable insights.

Responsibilities
Collaborate with a senior Agile Scrum team to design, develop, and maintain large-scale, cloud-based data processing pipelines and backend components. Work with cutting-edge technologies including Spark, Kubernetes, AWS, and modern data lakes like Databricks and Snowflake.
Design and implement scalable, cost-effective solutions that deliver high performance and are easy to maintain. Tackle complex, high-scale problems and drive performance optimization and cost-efficiency across the data pipeline.
Partner with engineers across our company R&D and Product teams to enhance our platform and provide capabilities for internal and external users to build data transformations and detection pipelines at scale.
Build robust monitoring and observability solutions to ensure full visibility across all stages of data processing.
Stay current with trends in big data processing and distributed computing. Contribute to code quality through regular reviews and adherence to best practices.

We own, develop, and continually optimize an intricate system of digital assets, contents, and infrastructures, all contributing to our digital advertising ecosystems. Our products and digital content range from utility applications, habit-tracking mobile apps, and gaming apps, to native advertising ad tech. All our products and content coordinate together to create unique monetization solutions and advanced revenue streams for digital properties. Impact and Responsibilities
* Design, develop, and implement high-quality software solutions using JAVA and AWS services.
* Lead and implement advanced infrastructure-related tasks, including setting up and maintaining CI/CD pipelines, preferably with Jenkins, and managing deployments and containerization with AWS ECR and ECS.
* Collaborate with cross-functional teams to define, design, and ship new features.
* Write well-designed, efficient, and testable code.
* Conduct software analysis, programming, testing, and debugging.
* Troubleshoot and resolve issues in existing software.
* Analyze and study complex system requirements, prepare design documentation.
* Write technical specifications based on conceptual design and stated business requirements.
* Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
* Participate in code reviews to maintain code quality and share knowledge.
* Maintain and enhance unit tests to ensure the various components / microservices quality

We're seeking an experienced Fullstack Backend Engineer to join our team working on our platform. You'll be responsible for developing and maintaining core components of our AI-driven cybersecurity solution that helps enterprises detect, investigate, and respond to advanced threats across their entire IT estate.

Key Responsibilities:

Design and develop scalable backend services and intuitive front-end interfaces for our platform
Implement data ingestion and processing pipelines for large volumes of security data
Integrate AI-driven analytics capabilities and optimize system performance
Develop APIs and integrations with various IT and security tools
Implement robust security measures and ensure compliance with industry standards
Troubleshoot complex issues across the full stack of our application

What Youll Do:
Youll be part of the group responsible for our companys main products. You will impact the work of developers in the group by designing, building and maintaining the core infrastructure of our solution and leading the research and development of new technologies as well as maintaining code standards and practices.
What does the day to day of Infrastructure Engineer at our company look like:
You will be working on our companys core B2B platform that serves tens of thousands of customers, serving hundreds of terabytes in production. Our backend engineers are responsible for the entire data lifecycle - from our endless datatlakes, through choosing the right serving methods and databases, all the way to our api services.
Your role will include:
Design and implement scalable backend services and libraries that are reusable and maintainable, serving as the foundation for various applications across the company.
Build and maintain tools that streamline development workflows, enabling product teams to focus on delivering business value.
Define and promote best practices for code quality, performance, and reliability, ensuring healthy production environments and rapid development cycles.
Lead the adoption and integration of AI tools to assist in code generation, testing, documentation, and debugging, thereby accelerating development processes.
Perform proof-of-concepts (POCs) on emerging technologies, including AI agents and platforms, to assess their applicability and benefits to our development ecosystem.
Drive cross-team technical projects aimed at improving infrastructure scalability, reliability, and developer experience.
Analyze and resolve complex production issues, ensuring minimal downtime and optimal performance.
Contribute to the evolution of our system architecture, ensuring it supports rapid development and scaling needs.

Required Backend Developer (C#/ JAVA)
Location: Petach Tikva
Hybrid
Full-time
What youll do:
Take a leadership role in achieving team goals, contributing to the overall design, architecture, development, quality, and production deployment of the team's systems.
Design and implement robust, scalable, and maintainable backend solutions for complex scenarios, ensuring high-quality results that may be consumed by other teams.
Collaborate effectively within your team and with cross-functional partners, such as Product, Design/UX, DevOps, and other R&D teams, representing your team as needed.
Maintain and improve the team's engineering practices, suggesting and implementing technology, patterns, or process enhancements.
Proactively identify areas of improvement in team systems, processes, and scalability.
Lead by example in code quality, contributing significantly to code reviews and acting as a focal point for engineering excellence questions.
Help monitor production systems, investigate potential issues, and lead efforts to resolve critical production challenges while maintaining a customer-centric approach.

Required Sr Staff Backend Engineer - ShiftLeft (Cortex Cloud)
Your Career
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.

We are looking for a highly skilled and experienced Senior Software Engineer to join our backend team.
In this role, you will leverage your expertise in distributed systems, data engineering, and software development to design, build, and deploy high-performance solutions. You will take a leading role in developing and maintaining a cutting-edge online machine learning system powered by PyTorch/Tensorflow models and Triton inference server.
This is an opportunity to work on complex, large-scale systems that serve billions of requests, shaping the future of ad tech and ML-driven optimization.
What you'll be doing
Architect and Build: Design, develop, and deploy robust, scalable, and high-performance distributed systems that form the backbone of ironSource's next-generation ML ad network.
Real-Time Ad Serving: Engineer and optimize critical systems for real-time ad serving, enabling machine learning models to make intelligent, low-latency decisions for optimal ad selection.
ML Infrastructure Innovation: Drive the evolution of our ML capabilities by researching, evaluating, and implementing cutting-edge techniques for feature stores, data aggregation, and model serving infrastructure.
Data Pipeline Engineering: Collaborate closely with data scientists and product managers to design, build, and maintain efficient and reliable data lakes and data pipelines, ensuring high-quality data for ML training and analytics.
Operational Excellence: Take ownership of key system components, ensuring their reliability, performance, and scalability in a production environment through proactive monitoring and continuous improvement.