דרושים » תוכנה » Senior Backend Engineer

Our main Engineering challenges at our company
Build efficient and easy-to-use web products used by thousands of users working for the worlds most premium publishers, advertisers, and agencies.
Rich and diverse tech stack and system architecture to optimize for performance, scalability, resiliency, and cost efficiency. We use mostly Scala and TypeScript, among others.
Working in a very high-traffic environment (2.2 billion users per month, 100 billion events per day) with low latency and high availability constraints (2 million requests per second, responses in less than 150 milliseconds).
Management of large datasets with milliseconds order of magnitude access time, to compute in a near real-time complex auction resolution algorithm (18 million predictions per second).
A fast-changing environment where we continuously collaborate with Product teams and constantly adapt our Cloud infrastructure for new features and Products.
Bring a wide diversity of profiles to the same level of quality and knowledge
Work in an international environment with offices located in Israel, Slovenia and France.
Build the Core Platforms That serves hundreds Engineers
Our global Managed Platform team is hiring, and we're looking for a Senior DevOps Engineer to help us tame complexity at scale. We are a distributed group, with team members in the US, France, Russia, Slovenia, and Israel, operating as the central nervous system for engineering.
We build, own, and manage the "as-a-service" platforms that all our developers rely on. This includes our entire observability stack, our massive online data storage systems, and the SRE tools and practices that keep our services reliable.
We operate a complex, high-traffic environment built on Kubernetes and managed via GitOps (ArgoCD & FluxCD). If you love building robust, automated, and self-service systems for other engineers, this is the role for you.
What will you do?
As a Senior DevOps Engineer, you will:
Own Core Data Platforms: Design, manage, and scale our diverse portfolio of datastores, including Cassandra, RDS/Aurora, Redis, Elasticsearch, and more.
Evolve Observability: Champion and advance our observability stack (Prometheus/Thanos, Grafana & ELK) to provide critical, real-time insights for hundreds of services.
Strengthen Reliability (SRE): Drive SRE best practices, including automating disaster recovery drills, managing our alerting strategy (AlertC), and improving system-wide resilience.
Modernize CI/CD: Help administer and optimize our CI/CD infrastructure, which includes Jenkins, Teamcity, and GitHub Actions.
Automate Everything: Leverage our Kubernetes and GitOps (ArgoCD/Flux) foundation to manage infrastructure as code, enhance developer self-service, and eliminate toil.
Collaborate & Consult: Act as a subject matter expert, partnering with development teams to help them choose, implement, and operate their data and observability solutions effectively.

We are looking for a Cloud Platform Engineer / DevOps Engineer to join a team of passionate engineers who build premium solutions at scale.
Every day, we tackle ambiguous and stimulating challenges.
Join a team of passionate people who build quality and responsible advertising, at scale!
Our Infrastructure Team
Running on major cloud providers (namely AWS, Azure, and GCP) as well as on-premise data centers, we are a growing team intentionally composed of diverse skills sets (development obviously, but also data store, software reliability, operational automation, etc.) which aims at delivering a first-class platform for our product development teams. We embrace Reliability Engineering, toil is our enemy while automation at scale is our main ally.
What will you do?
As part of the Cloud Foundation team, youll be architect of our core infrastructure, with a primary focus on global networking and automated provisioning.
Youll bridge the gap between our public clouds (AWS, Azure) and on-premise data centers by building the high-performance connectivity and Infrastructure as Code pipelines that tie them together. Your work will ensure that our network is not only secure and resilient but also invisible to the feature teams who rely on your automated workflows to spin up environments at scale. Youll thrive on solving complex routing challenges and streamlining the lifecycle of our resources, always striving for maximum efficiency and speed. Through constant collaboration and knowledge sharing, youll help us evolve a rock-solid foundation that scales as fast as our ambitions.

The Fly group is seeking a Senior Software Engineer to join a startup-like unit incubated under the CTO office. The team is developing Fly, the worlds first Agentic Artifact Repository. Fly delivers a "Zero Config" experience, allowing developers to move from code to production through seamless agentic flows.
This is a unique opportunity to operate with the agility of a startup while leveraging the backing of our established resources. We build on our industry-leading technology while owning and extending our own stack, enabling a fast pace of execution and the rapid introduction of new innovations into the product. We are designing a highly scalable, multi-tenant SaaS solution that integrates deeply within the broader developer ecosystem to deliver a seamless, plug-and-play experience.
As a Senior Software Engineer you will
Architect and build scalable, multi-tenant microservices that serve as the backbone of our SaaS platform.
Design and implement agentic workflows using LLMs, MCP, and AI agents.
Leverage advanced AI coding agents to accelerate development, writing context-aware, best-practice code across diverse technical domains.
Develop integrations bridging our platform with the external ecosystem, including GitHub, Kubernetes, and other development tools.
Drive key infrastructure and architectural decisions to ensure our system is performant, secure, and self-sustaining.
Collaborate with other teams to leverage the company's core infrastructure and shared services effectively.

We are looking for an enthusiastic AI Solution Manager who is a builder at heart and a changemaker by nature. In this role, you will be the catalyst for innovation, bridging the gap between ambitious business goals and actual technical delivery.
You wont just manage tasks; you will own the solution from idea to impact. We are looking for someone with a relentless curiosity to learn new tools, a passion for automation, and the drive to revolutionize our workflows. You will partner with stakeholders to design, prioritize, and build agentic AI flows that change the way we work.
What will you do?
Design & Build (Hands-on): Actively design and configure AI agents and automated workflows using low-code/no-code platforms. You turn concepts into working prototypes.
Product Ownership: Take ownership of AI initiatives. Define the scope, manage the timeline, and prioritize tasks based on business value and potential ROI. Ensure we are building the right things.
Stakeholder Partnership: Collaborate with business leaders to identify pain points. act as a trusted advisor who understands their needs and translates them into technical reality.
Drive Innovation: Be the companys "AI Radar." Constantly explore new tools and models, bringing fresh ideas to the table and challenging the status quo to improve efficiency.
Optimization & Impact: Don't just launch and forget. Monitor the performance of your solutions, troubleshoot issues, and iterate to ensure they deliver continuous value.

Were looking for a highly skilled, independent, and driven Machine Learning Engineer to lead the design and development of our next-generation real-time inference services - the core engine powering  algorithmic decision-making at scale. This is a rare opportunity to own the system at the heart of our product, serving billions of daily requests across mobile apps, with tight latency and performance constraints.
we are a mobile marketing and audience platform. we empower the mobile app ecosystem, simplifying mobile marketing, audience building, and mobile monetization. With direct integration into over 500,000 mobile apps, our platform processes enormous volumes of first-party data to drive intelligent, real-time decisions that fuel growth for our partners.
Youll work at the intersection of machine learning, large-scale backend engineering, and business logic, building robust services that blend predictive models with dynamic, engineering logic - all while maintaining extreme performance and reliability requirements.
Job Description:
Own and lead the design and development of low-latency Algo inference services handling billions of requests per day
Build and scale robust real-time decision-making engines, integrating ML models with business logic under strict SLAs
Collaborate closely with DS to deploy models seamlessly and reliably in production
Design systems for model versioning, shadowing, and A/B testing at runtime
Ensure high availability, scalability, and observability of production systems
Continuously optimize latency, throughput, and cost-efficiency using modern tooling and techniques
Work independently while interfacing with cross-functional stakeholders from Algo, Infra, Product, Engineering, BA & Business.

DRS RADA is a global pioneer of RADAR systems for active military protection, counter-drone applications, critical infrastructure protection, and border surveillance. We are seeking a Senior Backend Developer to lead the architecture and implementation of a GIS-oriented, distributed backend system. The system is currently in a Proof-of-Concept phase, with a clear trajectory toward a production-grade, mission-capable solution. This role is hands-on and design-heavy, focusing on building clean, extensible foundations for a microservices-based system that integrates real-time sensor data, geospatial processing, and a COTS GIS platform. You will define core architectural decisions that enable rapid iteration today while avoiding costly redesigns later. Key Responsibilities: Architecture & Technical Leadership:
* Design the backend architecture using modern .NET (C#), ensuring scalability from POC to production.
* Define microservices boundaries, service contracts, and data ownership models.
* Lead the design of the inter-service communication layer, evaluating and selecting messaging/communication patterns based on latency, reliability, and deployment constraints. Backend Development:
* Implement core services for ingesting and processing sensor-driven data streams (e.g., radar inputs).
* Design APIs and internal messaging patterns supporting low-latency and near-real-time workflows.
* Build services that integrate spatial and non-spatial data using PostgreSQL and PostGIS.
* Ensure performance is sufficient for real-time visualization without over-engineering early-stage components. GIS & System Integration:
* Integrate backend services with GIS map servers (e.g., Carmenta Map Server, LuciadFusion, Cesium ion).
* Collaborate with frontend developers using Angular, OpenLayers, and CesiumJS. Infrastructure & Deployment:
* Define containerization and deployment workflows using Docker / Podman (Compose-based, no Kubernetes).
* Design for on-premise constraints, including limited scalability and intermittent network reliability.
* Introduce lightweight observability (logging, metrics), with a path to production-grade monitoring. Reliability & Security:
* Design secure service communication and basic identity/access mechanisms.

our company's Israel Backend team. The team is responsible for the backend development of multiple SaaS web products (CRM, Commerce, Data Automation) in a highly innovative, technical, and empowering work environment.
Our products are in use by millions of users worldwide, delivering smart and intuitive web experiences that put the end-user in the center.
In this role you will design & develop a challenging high-end SaaS web products for some of the biggest operations in the world, in a great work atmosphere and with highly skilled teammates.
Responsibilities:
Design, build, and maintain efficient, reusable, and reliable code for the development of our products API, Backoffice and Backend services
Work closely with your team leader and engineering colleagues to achieve the optimal implementation.

We're looking for a passionate and innovative Software Engineer to join our FastCI team - the force behind our AI-powered CI/CD optimization platform. You'll help build a product that automatically detects CI pipeline bottlenecks, generates actionable insights, and leverages AI agents to deliver fixes. FastCI turns CI maintenance from a reactive chore into a self-healing, intelligent system. This is a rare opportunity to work at the intersection of developer tooling, observability, and applied AI, shipping technology that impacts millions of builds every day.
As a Software Engineer, you will
Embrace an agile, entrepreneurial environment with the strategic advantage of selling to Fortune 500 companies
Develop advanced system-level performance tools for optimizing critical software processes
Design and implement intelligent engines that enhance development commands and workflows
Architect high-performance caching strategies to maximize efficiency across development cycles
Create seamless integrations with widely-used developer tools and platforms
Build scalable, multi-language solutions supporting diverse technology stacks.

We are looking for a hands-on developer to join an innovative and talented R&D team. To join us, you will need to deliver high-quality code using the latest cloud frameworks and technologies.
As a Back-End Engineer you will...
Be responsible for all development aspects, from design to production, of a cloud-native product
Write high-quality, testable, and efficient code in Java / Go
Initiate and promote new ideas for the continuous improvement of product functionality
Work closely with team members and product colleagues
Lead feature development end-to-end (E2E), from initial architectural design to successful production deployment.
Write high-quality, clean, efficient, and maintainable code while adhering to best practices and coding standards
Stay up-to-date with industry trends and emerging technologies related to DevOps and the software development lifecycle
Contribute to architectural discussions and design sessions to promote scalability and maintainability