דרושים » תוכנה » Senior Back End Developer

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 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.

As the worlds leading vendor of Cyber Security, facing the most sophisticated threats and attacks, weve assembled a global team of the most driven, creative, and innovative people.
At our company, our employees are redefining the security landscape by meeting our customers real-time needs and providing our cutting-edge technologies and services to an ever-growing customer base.
our company Workspace Security (Previously AVANAN) is a unique email solution that fully secures cloud email and cloud platforms using AI.
If you're passionate about making the world a safer place and want to be part of an award-winning company culture, we invite you to join us.
Key Responsibilities
As a Senior Cloud Back-End Developer, you will be responsible for developing and maintaining exciting security products utilizing advanced models for Avanans customers. Our production environment is a fast-paced, agile development cloud environment - handling tens of millions of transactions daily
You will develop software serving large scale production real-time environment. handling large quantities of data, using multi-threaded methods and design patterns. The domain you will tackle will involve cutting edge cybersecurity cloud solutions, like phishing, impersonation, anomaly detection, and more. The product involves significant use of modern AI technologies. All implemented with the latest AWS tools and managed services such as Aurora RDS, Athena, Kinesis, Kafka, SQS, Elastic Search, ElasticCache, and many more. You will design and develop high impact real-time components for online analysis, and take ownership of the end-to-end solution.
Develop production-grade, large-scale cloud -based security products.
Design and develop data-driven applications in an agile development environment.
Design and develop AI back-end solutions and APIs.
Interact with data scientists, R&D, QA and Test Automation.

We are looking for a Senior Software Engineer to join our Decision Engineering team. The group is responsible for the real-time, low-latency infrastructure that powers our fraud decisions and external APIs.
Our systems process billions of requests every day, ensuring high availability, security, and performance at global scale.
In this role, youll work on core backend components such as our decision engine, ingestion and enrichment pipelines, schema management systems, and self-serve API platform. The software you build will power critical business decisions and directly serve some of the worlds largest merchants.
This is a high-impact, high-ownership position for an engineer who thrives on solving complex distributed systems challenges, cares deeply about production-grade quality, and wants to shape the foundation of our decisioning platform.
What you'll be doing:
Design, build, and scale backend systems that power our real-time decisioning and APIs.
Own projects end-to-end - from design and implementation to production rollout and monitoring.
Ensure systems are low-latency, fault-tolerant, and high-throughput across distributed environments.
Enhance observability, reliability, and developer experience through strong operational and tooling practices.
Collaborate with Product, analysts, data scientists, and infrastructure teams to drive innovation across our decision ecosystem.
Participate in technical discussions and customer interactions, providing expertise and clear communication when supporting enterprise integrations.

Were looking for a talented Senior Backend Engineer to join our growing team and lead the development of scalable, high-performance backend systems. In this role, youll design, build, and optimize platform services that power large-scale applications. Youll collaborate closely with cross-functional teams to ensure our systems are reliable, efficient, and built for growth.
What Youll Own
Design, develop, and maintain backend services, APIs, and microservices architecture.
Optimize platform performance, scalability, and reliability to support complex, high-traffic systems.
Collaborate with frontend, DevOps, and product teams to deliver seamless integrations.
Implement best practices for backend security, observability, and infrastructure automation.
Work with modern cloud-native technologies and container orchestration tools (Kubernetes).
Develop and maintain CI/CD pipelines to enable smooth and automated deployments.
Troubleshoot, diagnose, and resolve performance issues and production incidents.
Write clean, maintainable, and well-documented code, and conduct thorough code reviews.

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.

who are always looking to achieve the impossible. We are bold, collaborative, and goal driven, and, at our core, we believe every voice has value and can impact our bottom line. We are looking for Senior Engineers who treat AI as a core part of their workflow - people who experiment, iterate, and know how to get real value out of AI tools. Flexibility, curiosity, and a problem-solving mindset are must-haves. In this role you will have the opportunity to take ownership of the development of groundbreaking, AI-driven products and work on interesting projects inside a smart, fun, and dynamic engineering team. This position is based out of our Jerusalem or Tel-Aviv offices and reports to the Dev team lead.

What you will be responsible for:

* Write clean, high-quality, high-performance, maintainable code.
* Ensure that the projects you work on meet business objectives and coding standards.
* Support the deployment and testing of new products and features.
* Collaborate with cross-functional teams to gather and analyze requirements, translating them into technical specifications.
* Design and implement APIs and integrations with third-party services to enhance system functionality.
* Optimize application performance through code profiling, monitoring, and refactoring as necessary.
* Implement automated testing frameworks to ensure code robustness and reliability.
* Participate in code reviews and provide constructive feedback to peers to foster continuous improvement.
* Stay updated with emerging technologies, best practices, and industry trends to drive innovation within the team.
* Assist in the establishment and enforcement of development standards and coding conventions.

Were looking for a Backend Engineer to join our Foundation Group. This team builds and scales microservices in the cloud, working with Python, SQL, and NoSQL databases.
As a Backend Engineer, youll take ownership of designing, developing, and rolling out services within our POI enginea core component of our platform. Youll face large-scale and high-load challenges, selecting and applying the most suitable tools and technologies to deliver reliable, high-performance solutions.
RESPONSIBILITIES:
Design and develop scalable backend systems to support POI data processing and storage, ensuring high availability and reliability.
Manage and optimize cloud-based infrastructure for handling large data volumes and high traffic, implementing infrastructure as code (IaC) practices.
Develop and maintain efficient data pipelines for the ingestion, processing, and storage of POI data, ensuring data integrity and accuracy.
Implement and maintain CI/CD pipelines to automate testing, deployment, and monitoring, ensuring smooth and rapid release cycles.
Enhance system performance and security, monitoring for bottlenecks and vulnerabilities, and ensuring compliance with data protection regulations.
Collaborate with cross-functional teams including product managers, data scientists, and frontend developers to deliver integrated solutions and participate in code reviews and technical discussions.

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.

Required Senior Backend Developer
The opportunity
Join our team working on an advanced ad-serving platform that powers millions of real-time interactions every second. As a Senior Backend Developer, youll play a key role in designing, developing, and maintaining a high-performance system that supports critical functionalities like targeting, attribution, budget management, and data pipelines for machine learning and reporting.Youll be expected to lead impactful projects, drive improvements in performance, scalability, and system reliability, and help shape solutions that directly influence the success of a globally recognized platform. We value bottom-up initiatives and encourage team members to bring their ideas to the table, fostering innovation and collaboration.
Why You'll Love This Role:
Take ownership of major projects and core features with significant business impact.
Work alongside skilled engineers in a fast-paced, high-scale environment.
Tackle challenging technical problems using cutting-edge tools like Kafka and Aerospike.
What you'll be doing
Design, develop, and monitor new features for the platform, including components supporting targeting, attribution, and budget management.
Maintain and optimize the performance of critical backend systems.
Refactor and improve legacy code to ensure scalability and efficiency.
Lead efforts to guarantee system reliability and low latency in a high-concurrency environment.
Collaborate with peers and across teams to deliver high-quality, production-ready solutions.