דרושים » ניהול ביניים » Senior Backend Developer

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.

We are looking for a passionate Senior Backend Developer to join our all-star team.
As part of your role, you will design, implement, and deploy products and infrastructures which will directly amplify our core business and enable new strategic growth opportunities. The backbone systems and data-pipelines youll build will serve millions of users, sustain extreme impression loads, and support sub-second ML prediction and on-the-go ML training.
This is an amazing opportunity to join a multi-disciplinary A-team while working in a fast-paced, data-oriented environment.
If you are experienced but still hungry to learn and impact - wed love to have you on our team!
What Youll Do:
All-around player through our vast data and prediction systems touching cloud infrastructure, data pipelines and aggregation, high-performance RTB bidders, and ML prediction infrastructure - over 50B events per day.
Design architecture and implement data pipelines to support high scale ingestion, augmentation, continuous ML training, and real-time prediction.
Design, implement, deploy and own end-to-end Cloud clusters, services, and infrastructure to support extreme workloads and traffic flow while maintaining a lean design and launch and forget methodology
As all our systems are data-driven you will have an analytical aspect in measuring your modules both business and performance-wise
Build internal dashboards and tools to democratize access to your modules and amplify other team members work
Joining our all-star team and working side by side with data-scientists and researchers, you will design, implement, bring to production and own end-to-end whole areas of business and system
Technological superiority is what gives us our edge so youll work and be up to date with the latest tech and trends.

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 looking for a skilled and highly motivated software engineer to join and play an integral role on the Runtime team, part of the MLOps group. This team is responsible for building high-quality, enterprise-grade deployment and serving infrastructure for classic ML models and LLMs ensuring they are efficiently deployed, monitored, and scaled to handle millions of requests across multiple cloud platforms, including GPU-powered machines.
As a core member of the team, youll tackle meaningful and engaging challenges across a diverse technological stack.
We value creative, fast learners and independent thinkers who are proactive, collaborative, and capable of driving tasks from concept to production.
As a Back-End Engineer you will...
Be an integral part of a highly skilled team working to build the leading MLOps platform in the industry.
Maintain and evolve the Runtime teams products, ensuring their reliability and scalability.
Design and develop a complete hosting system that supports various types of inference, analytics, monitoring, distribution, and more enabling customers to run large-scale real-time, batch, and streaming ML pipelines.
Play a key role in shaping our cross-company engineering culture.
Conduct high-quality design reviews with a strong emphasis on scalability, maintainability, security, and sound use of design patterns.
Write maintainable, well-tested code in multiple programming languages.
Continuously improve the efficiency, scalability, and stability of critical system components.

We are looking for a Principal Software Engineer to join our team and revolutionize the way our system is built.

What your day will look like:
The correlation team is an integral part of the platform group, focused on developing and enhancing the core algorithms that power the products.
As a part of this team, you will be at the forefront of innovation, driving the development of the "Correlation" engine, a proprietary secret sauce algorithm, central to the platform's data-related capabilities, and fortified by a portfolio of patents.
As a Principal Software Engineer on the correlation team, you will lead the research, design, and implementation of the cutting-edge algorithms and infrastructure that drive the Platform. You will strategize and execute engineering efforts to achieve high scalability and performance. This role offers a unique opportunity to contribute to groundbreaking technology and shape the future of cybersecurity asset management.
Responsibilities:
Be a key member of the R&D team, solving and implementing complex engineering challenges.
Leading end-to-end implementations of technologies at the core of product.
Research solutions using data
Be hands-on: conduct research, perform POCs, and solve complex engineering challenges.
Contribute best practices and architectural leadership to our backend applications

Required Infrastructure Engineer
If youre into online shopping (who isnt these days?), chances are youve crossed paths with us. Were all about eCommerce retentionhelping brands of every size turn one-time shoppers into lifelong customers.
Think loyalty programs, SMS and email marketing, and reviewsits what we do best. Plus, weve got more tricks up our sleeve.
With teams spread across the globefrom the US and Canada to the UK, Israel, Bulgaria, and Australiawere growing fast. Our main mission? Delivering cutting-edge technology that sets new standards in the industry.
Sounds exciting? Then read on, because were looking for curious professional talents to be a part of building the future of the e-commerce industry.
We are:
Our Platform Engineering group. Our mission is to empower us to unlock business value effectively. Our DevX team aims to do that by focusing on Developer Experience, providing a platform that boosts agility, speeds up time to market, and enhances overall product quality and customer experience! We have a special company culture In our RnD teams have end-to-end ownership of the products they build, test, monitor and operate their services, our job is to give them the tools for it.
Ownership has two sides: With freedom comes responsibility. With autonomy comes accountability.
You will:
Enhance developer experience by providing self-service using Backstage, HelmCharts, and more, focusing on Java / PHP/ Ruby services defining golden paths adoption.
Drive the adoption and improvement of platform engineering tools such as Okteto, SonarQube, LaunchDarkly, SonarQube, CI/CD, and more.
Develop & maintain code libraries and documentation for Golden Paths best practices such as API guidelines and golden path documentation, to support developer productivity.
Build infrastructure to increase uptime and reduce incident frequency.
Continuously measure developer satisfaction, identifying and acting on feedback to improve tooling, workflows, and documentation.
Optimize infrastructure costs, proactively managing resource usage and tooling.

We are seeking an experienced Senior Backend Engineer with a passion for tackling complex challenges across a diverse range of technologies. Your role will involve a deep commitment to software design, code quality, and performance optimization. As part of our Engineering team at Dream, your mission will be to empower critical infrastructure by enabling the detection, investigation, and response to complex attacks and data breaches on their networks.

As a Senior Backend Engineer, you will take a lead role in developing the backend infrastructure to efficiently handle, process, and store massive volumes of data. Your expertise will play a crucial part in building a scalable, high-performance backend system that serves as the foundation for other services within the platform. Additionally, you will be responsible for translating intricate requirements into meticulous and actionable backend designs.

Responsibilities
Be a significant part of the development of backend infrastructure to efficiently handle, process, and store vast volumes of data.
Architect and build a scalable, high-performance backend system that supports various services within the platform.
Translate intricate requirements into meticulous backend design plans, maintaining a focus on software design, code quality, and performance.
Collaborate with cross-functional teams to implement backend and data-handling techniques.
Apply your expertise to create robust backend solutions.
Leverage your proficiency in cloud platforms such as AWS, GCP, or Azure to drive strong backend engineering practices.
Demonstrate strong debugging skills, identifying issues such as race conditions and memory leaks within the backend system. Solve complex backend problems with an analytical mindset and contribute to a positive team dynamic.
Bring your excellent interpersonal skills to foster collaboration and maintain a positive attitude within the team.

Required Senior Software Engineer
About the Fraud Prevention Squad:
The Fraud Prevention Squad is a highly skilled and collaborative team of engineers, data scientists, and analysts working to develop cutting-edge fraud detection and prevention systems. The team is passionate about building secure financial products and fosters a culture of learning and mentorship, where everyone is encouraged to share their expertise and grow their skills.
What Youll Do:
As a Senior Backend Engineer on our Fraud Prevention Squad, you will play a key role in ensuring the integrity and security of our product offerings. Your main responsibility will be to design, build, and enhance advanced backend systems to detect, prevent, and manage fraudulent activities across all our products. You will collaborate with a multidisciplinary team of engineers, data scientists, and data analysts to develop effective fraud prevention strategies and tools. Additionally, you will continuously improve existing technologies, integrate fraud prevention measures seamlessly into our products, and provide mentorship to junior engineers.
Key Responsibilities:
Contribute to the development of our Fraud Prevention Platform, ensuring high-quality products and services.
Solve complex architectural problems, utilizing your deep understanding of system architecture.
Collaborate with other team members, sharing your expertise and facilitating a culture of learning.
Maintain our system architecture, ensuring smooth operation and quality user experience.
Be an advocate for clean, efficient, and maintainable code.
Provide mentorship to junior team members, nurturing their growth and development.

our company has been redefining computer graphics, PC gaming, and accelerated computing for more than 25 years. Its an outstanding legacy of innovation thats motivated by extraordinary technology and amazing people. we are looking for an experienced Python Backend Developer to join our Air team the Digital Twin for Data Center Simulation web application.
As a Backend Python Developer, you will be responsible for designing, developing, and maintaining our web applications. This position offers the opportunity to have a real impact in an influential, technology-focused company impacting product lines that power the most advanced data centers in the world. We have crafted a team of outstanding people, whose mission is to push the frontiers of what is possible today and define the platform for the future of data center simulation and design.
What you'll be doing:
Collaborate with the development team to design and develop web applications using Python and Django framework.
Write clean, efficient, and maintainable code that adheres to industry standards.
Participate in code reviews and provide constructive feedback to ensure code quality.
Perform unit testing and debugging to identify and fix issues.
Work closely with product manager and architect teams to gather requirements, translate them into technical solutions, and deliver high-quality and scalable solutions.

Were looking for an experienced backend developer whos comfortable owning end-to-end features from data modeling to API development. Youll work closely with the team leader and take part in building smart, scalable systems that power everything from dashboards to AI-driven insights.

This is a hands-on role where youll write real code, influence product decisions, and work side-by-side with a sharp group of developers, data people, and product leads.

Your Day-to-Day Will Include:

Building APIs and services using NestJS and TypeScript.

Working with SQL and MongoDB to manage large-scale structured and semi-structured data.

Writing efficient queries and optimizing backend performance.

Using AI to solve real product and data problems this isnt about building tools for others; its core to what we do.

Collaborating daily with colleagues in Israel and abroad (good English required).

Reporting directly to the team leader and having full ownership over your projects.