לוח משרות דרושים Senior Backend Developer

We are looking for a Senior Principal Backend Engineer to join our Cortex Platform team and help us to prevent, detect and respond to all runs on an integrated endpoint, network and cloud data - reduce the noise and focus on real threats.
Your Impact
You will be a part of a group with the mentality and independence of a startup, supported by the power of a successful corporation You will design and build an infrastructure that supports billions of events per second, storing, processing and making them accessible and visible to the user while collaborating with the industry's leading cyber products
You will be responsible for the complete software development life cycle including requirement analysis, design, development, deployment, and support You will write clean, testable, readable, fast and maintainable code that is efficient and scalable.

Were looking for a Back end developer to join our development team! As a Back end developer you will develop APIs, microservices, flexible interfaces, at massive scale across multiple continents.

Part of the role will include integration with multiple external APIs, processing of the data, and compiling it in a flexible way to accommodate various output requirements.

Responsibilities
● Write clean, maintainable, and efficient code while adhering to best practices and coding standards

● Optimize application performance and ensure smooth user experience across different devices and browsers

● Collaborate with stakeholders to understand requirements and translate them into technical solutions

● Stay up-to-date with emerging technologies and industry trends, evaluating their potential applications to enhance our e-commerce platform

We are looking for an experienced Senior Backend Engineer to join our fast-growing company during a breakthrough stage, as we build our dream team of the most passionate and professional people in the industry. Our team thinks differently and quickly, delivering high-quality and unique code while using the latest technologies and frameworks - all without forgetting to enjoy the ride!
What Youll Do?
Take part in all development aspects, from design to production, of a wide hybrid/cloud-native product
Write high-quality, testable, and efficient code using Python and Go
Initiate and promote new ideas for continuous improvement of product functionality
Work closely with other team members, as well as mentoring new team members.

We are looking for an experienced, hands on Senior software engineer to join our fast growing company and in a breakthrough stage where we build our dream team with the most passionate and professional people in the industry.
our team thinks differently and quickly, delivering high quality and unique code while using the latest technologies and frameworks. All of that without forgetting to enjoy the ride!
What Will You Do?
Take part of all development aspects from design to production of a wide hybrid/ cloud native product
Write high quality, testable and efficient code
Initiate and promote new ideas for continuous improvement of the product functionality
Work closely with other team members as well as mentoring new team members.

Required Senior Backend Engineer
Come join the team as a Senior Back End Engineer. We are a customer obsessed, and our capabilities serve millions of customers; we innovate to create hyper growth to the customers and the business; using new technologies and driving new platform initiatives.
If you are passionate about building a world class platform, at a high scale, this is the opportunity for you!
Responsibilities
Participate in the agile feature/product design process working with cross-functional teams
Design, implement and enhance services at large scale as part of the sales product, enabling various customers use cases. E2E responsibilities including technical documentation and automation tests.
Production support involved with monitoring production systems and remediating issues
Strong leadership and communication skills (Hebrew and English), and ability to work well in a team. Collaborate with other engineers to share best practices and knowledge of emerging technologies
Engage with customers to get a first-hand understanding of their needs
Perform and participate in peer code reviews.

Required Staff Backend Engineer
Come join the team as a StaffBackend Engineer. We are a customer-obsessed, and our capabilities serve millions of customers; we innovate to create hyper growth to the customers and the business; using new technologies and driving new platform initiatives.
If you are passionate about building a world class platform, at a high scale, this is the opportunity for you!
Responsibilities
You will seek to improve performance by refactoring existing services and flows
You will mentor more junior team members and help them learn and progress professionally.
You will collaborate with various stakeholders - product management, analysts, data engineers, customer success, and more.
You will contribute by owning the designing and implementing new features and enhancements and represent the team in the technical aspect during discussions and architecture roundtables
You will be hands-on, 70 - 80% coding
You will serve as the immediate go-to person within the team for any tech-related issue or discussion
Youll be a good listener, while also having strong opinions on what is right
Youll be fun to be around and work with :)

Required Senior Backend Scala 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.

we are looking for a Senior Backend Engineer
What You'll Do:

Your Mission. Design, develop, and execute features from concept to production that will have a huge business impact on the core products at OpenWeb.
High Impact. Ramp up the technical level of your team and cross-backend engineers, raising the overall engineering quality across the organization.
Own your mission. Develop high-priority projects that contribute to making OpenWebs products the most scalable, high-velocity solutions on the market.
Lead. As part of a team developing a complex micro-services backend architecture, you'll work with the team and lead us towards solutions for large-scale challenges.
Dream Team. You'll join an agile dev squad of engineers who are all highly talented, very collaborative and excited to hear your opinion.
You will report to the Engineering Team Lead.

Required Principal Backend Engineer, Platform Foundations
What Youll Do:
Youll be part of the group responsible for our 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 look like:
You will be working on our 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.

Our Group specializes in providing comprehensive solutions for investing and trading across global markets, with a strong focus on the U.S. stock exchange. Established in 2010 in Cyprus, we are part of the group and provides advanced brokerage and trading services on Equities, CFDs, FX, and Crypto.
We are expanding our R&D team in Tel Aviv and looking for a talented Back-End Developer to join us.
This is a great opportunity to work in a dynamic FinTech environment, with cutting-edge technologies, and to make a real impact.
What youll do:
* Design, develop, and maintain scalable back-end systems.
* Build and optimize RESTful APIs.
* Work closely with cross-functional teams in a fast-paced, innovative environment.

Realize your potential by joining the leading performance-driven advertising company!
As an Experienced Backend Engineer in the Audience Extension team in our Tel-Aviv Office, youll be instrumental in building and optimizing our core infrastructure for managing RTB requests at scale, one of the biggest revenue driven operations in the company.
How youll make an impact:
As an Experienced Backend Engineer, youll bring value by:
Develop one of the largest real time big data operation in the world to support over 40TB of new data every day
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 hundreds of 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 managing RTB requests at scale
An algorithmic model to predict if a given Real-Time impression is valuable to our company
A smart gateway that ingests hundreds of thousands of requests per second for a single instance
An A/B tests system to explore variations and experiments
And many more.

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.

As a Senior Backend Engineer, you will be a key contributor in designing, implementing, and optimizing our Backend Engine and application infrastructure. You will collaborate with other team members to ensure our applications are cloud-ready, scalable, and secure enabling us to stay at the forefront of our industry. You will get a chance to work on a variety of technologies, in a dynamic and fast paced environment.

Responsibilities
Collaborate with cross-functional teams to design, develop, and deploy robust and scalable features for our cutting-edge data analytics platform.
Architect, implement, and optimize backend solutions using Python to ensure seamless data processing, storage, and retrieval.
Collaborate closely with product managers, data scientists, tech-leads to understand requirements, provide technical insights, and deliver high-quality solutions.
Continuously enhance the performance, scalability, and security of the platform and backend services through code reviews, testing, and optimization.
Stay up-to-date with industry trends and emerging technologies; proactively recommending and implementing improvements to enhance the platforms capabilities.