לוח משרות דרושים Senior Backend Developer

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.

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 Backend Developer, youll be building powerful features that push the boundaries of what technology can do in global trade. You'll work alongside a talented and diverse team of engineers, product minds, QA specialists, and domain expertseach bringing deep knowledge and fresh perspectives. In this role, youll take full ownership of complex backend systems, designing and developing robust server-side architecture from start to finish. We value independence, accountability, and the drive to turn ambitious ideas into production-ready reality.

Roles & Responsibilities:
Write scalable server-side code using Python.
Work in AWS cloud environment.
Implement and maintain RESTful APIs for seamless communication between FE and BE.
Work with rational/nosql/objectstores such as MongoDB, PostgreSQL, Neptune, s3 to store and retrieve data.
Write clean, readable, quality and testable code writing.
Test and debug applications to ensure high quality and performance.
Review pull requests to ensure high quality and maintainable solutions.
Seeing through a project from conception to delivery.
Follow-up on new evolutions of technology and take initiative to understand how the development will look tomorrow and help us get there.

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

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.

Were growing rapidly and looking for superstars to join our rocketship. Were looking for an experienced Backend Engineer that will help us bring permission management back to security, where it belongs. Together well build a SaaS product to serve thousands of global customers in a modern and scalable way. You will work closely with the rest of the R&D team to design, develop, and deploy high-quality software that powers our platform with cutting-edge technologies in a dynamic and agile environment. As a backend engineer, you will:
Grow and evolve as part of the R&D team!
Develop end-to-end features and systems that are used daily by key stakeholders, both internally and externally.
Investigate, implement and share new technologies and ideas.
Practice the most advanced server-side techniques available with challenging micro-services architecture, using the best technologies available: Kubernetes, Big Data Technologies (e.g. Kafka, Spark), Python.

Were looking for a talented Backend Engineer to join our fast growing R&D team.
This role is full-time and is based in Herzliya, Israel.
Responsibilities
Architect and implement resilient, high-performance backend services for our cloud-native cybersecurity platform.
Enhance data flows and scale integrations with automotive data systems.
Collaborate with a multidisciplinary team to build secure, flexible solutions.
Willingness and ability to learn new technologies and adapt to ongoing changes.

Required Senior Data-Oriented Backend Engineer
As part of the Audiences team, youll work on highly scalable systems, tackle real-time challenges, and contribute to a platform that directly impacts the success of our customers campaigns.
Our team mixes disciplines from back-end, data, AI and front-end engineers and were looking for a great back-end data oriented developer that is passionate about what they do, who want to dive into the worlds of big data, microservices and production management at our scale, to help us reach our vision and goals
What youll do
Solve diverse, complex problems at a large scale
Collaborate with Product Managers, data scientists and Software Engineers to deliver innovative, user-facing products.
Independent - cradle to grave, own a feature from scratch to production
Analyze and improve performance, scalability and stability of our products, environments and tools
Continuously learn and evaluate new technologies in the everlasting effort to perfect our products and adapt to the ever-growing scale.

Required Senior Data Engineer
Herzliya
Were a passionate, collaborative, and professionally diverse Data Platform team, famous for building world-class high-scale infrastructure that processes tens of millions of events per second.
Now, were evolving our mission: applying our engineering excellence to the world of data engineering, metadata systems, and agentic AI.
This is a brand-new challenge, and were looking for an exceptional Data Engineer to join us.
If youre ready to pioneer the future of data engineering with AI, wed love to have you on board the rocketship
What youll do
Architect metadata-aware data platforms that support scalable and observable pipelines
Create and evolve knowledge graphs, schemas, and lineage tracking systems
Drive the teams expertise in data modeling, schema evolution, and privacy-first engineering
Work with high-scale data ETLs and Data Serving layers on AWS and GCP.
Build and maintain data foundations for agentic AI systems.
Design and build advanced solutions to analyze metadata, identify data quality issues, and provide remediation insights.
Collaborate with internal teams across platform, product, and data domains.

Were looking for a Senior Backend Engineer to help us evolve and scale our real-time engagement infrastructure. Youll solve high-throughput, low-latency challenges and craft APIs used by some of the largest mobile apps in the world.
What youll do:
Design, develop, and own core features and products related to link engagement and redirection at massive scale
Tackle complex problems in real-time, high-throughput systems using modern cloud-native tooling such as CDNs, WAF, Web Handlers, and Kafka
Lead API design and implementation across systems with a strong focus on security, scale, performance, and reliability
Improve system performance, stability, and observability across the board
Collaborate with Product Managers and Engineers to shape product direction and deliver customer value
Contribute to engineering excellence via code reviews, mentoring, and technical leadership
Continuously evaluate and integrate new technologies to keep our stack modern and efficient.

abra R&D is seeking a Senior Backend Developer! We are looking for a talented highly-motivated experienced Backend Developer to join one of its growing inspiring development teams. What will you do?
* Be part of a team building tools to make our infrastructure scalable, and robust.
* Continuously research and integrate new AI-driven developer productivity tools.
* Design and develop an always-available Cloud-based SaaS platform in AWS
* Lead and Design the development of robust CI/CD pipelines for Kubernetes running Containerized applications
* Design and build strong Application and System monitoring and automated self-healing procedures.
* Maintain and support application deployments, building new systems and upgrading existing.

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 are looking for an experienced, passionate Senior Backend Engineer (Platform Team) to join our growing TLV R&D location. You'll be joining the backend group to help us expand our infrastructure and add new features to the company's core product.
As a Senior Backend Engineer in our platform team, You'll take part in our effort to improve our product, productivity, security and the ability to scale. Opportunity to make a significant impact by driving the technical direction of a high-growth company.
As a Senior Backend Engineer, you will:
Develop and maintain policies and procedures for software development, deployment, and maintenance. Monitor cloud environments using infrastructure as code methodologies
Work closely with other teams, such as development and operations, to ensure that our software applications meet the needs of the organization.
Participate actively in code reviews to uphold high standards of quality and maintainability in software development
Work collaboratively with product teams to design and implement new cloud services and workflows, contributing to the continuous improvement of our platform
Stay up-to-date with emerging trends and technologies in Cloud, and assess their potential impact on our organization.

We are looking for an experienced, passionate Senior Backend Engineer to join our growing TLV R&D location. You'll be joining the backend group to help us expand our backend system and add new features to the company's core product.
As a Senior Backend Engineer, you'll play a crucial role in driving the backend architecture and technical strategies that underpin our success. This is a great Opportunity to make a significant impact by driving the technical direction of a high-growth company.
As a Senior Backend Engineer, you will:
Build backend system from the ground up
Design and collaborate with the engineering team to build architecture and system design for new products
Build internal products and integrate with external APIs
Play a role in building, expanding, testing and releasing of a product helping thousands happy customers.