דרושים » ניהול ביניים » Senior Backend Developer Data & AI Team

We are seeking an experienced Backend Developer with a minimum of 5-6 years of hands-on experience to join our development team. As a Backend Developer, you will be responsible for designing, developing, and maintaining robust solutions for our suite of products, as part of the team responsible for the heart of our technology stack. You will work with cutting-edge technologies, including Node.js, Nest.js, TypeScript, PostgreSQL, and AWS services.

Responsibilities:
Design, develop, and deploy scalable and high-performance backend solutions to support our web and mobile applications.
Write clean, maintainable, and well-documented code in TypeScript, following best practices and design patterns.
Implement and maintain database schemas, queries, and optimizations using PostgreSQL.
Perform code reviews, troubleshoot issues, and provide technical support to ensure the reliability and performance of backend systems.
Collaborate closely with the product team, FE developers, QA engineers, and other stakeholders to understand requirements and translate them into technical specifications and implementation plans.

We are looking for a senior backend engineer to join our team.
As a Backend Engineer, youll get the chance to build a high-scale, performant, secure, and modern SaaS product serving thousands of businesses worldwide!

You will work with a highly professional team and have the opportunity to experience multiple technologies, from Java backends to serverless NodeJS applications, running on modern cloud infrastructure.

Each member of our Engineering team is an all-around player that influences the product from the overall experience to the details of development and architecture. You should be passionate about software engineering and creating and owning a product end-to-end; from inception to production, through design, architecture, implementation, verification, deployment and monitoring.

What will you do:
Collaborate with a team of sharp, impact-driven engineers to solve meaningful, complex challenges at scale.
Partner with product managers to ship high-performance, resilient backend systems and APIs that power core experiences.
Architect and build robust, customer-facing services and platformsend-to-endfrom scratch, using todays best tools and practices.
Own your code in production: continuously improve, optimize, and evolve the systems that drive our business.
Take full accountability for designing, implementing, testing, and deploying backend capabilities with a focus on quality and velocity.
Champion engineering excellenceset high standards, own what you build, and help level up the team around you.

We are looking for a Senior Backend Engineer to join our AI/ML team. In this role, youll work closely with data scientists to transform cutting-edge machine learning models into scalable, production-ready services. You will take ownership of designing, building, and maintaining the backend systems that power our AI-driven features.

This is a key position that bridges the gap between data science and production engineering, ensuring high performance, reliability, and maintainability of our ML-powered products.

Responsibilities:
Collaborate with data scientists to understand modeling outputs and convert them into deployable services.
Design and develop robust, scalable backend systems and microservices to support AI use cases.
Own the deployment and monitoring of ML models in production (with CI/CD, logging, observability).
Implement data processing pipelines in support of model training and inference.
Ensure software adheres to best practices in architecture, testing, and documentation.
Optimize model inference for latency, throughput, and resource efficiency.
Contribute to design decisions and technical strategy alongside AI and infrastructure leads.

As a customer-centric tech company, we created an insurance experience that is smart, instant, and delightful.
youll be working with a group of like-minded makers, who get a kick out of moving fast and delivering great products. We surround ourselves with some of the smartest, most motivated, creative people who are filled with positive energy and good karma.
Unlike most publicly traded companies, were nimble and efficient. We take pride in the fact that we still think and operate like a startup. We dont care much about titles and hierarchy and instead focus on innovation, bold moves, and challenging the status quo.

Were built as a lean, data-driven organization that relies on a common understating of objectives and goals to provide teams with autonomy and ownership. We dont like spending our days in meetings and we skip committees altogether. theres no such thing as going over someones head. We have zero tolerance for bureaucracy, office politics, and lean-back personalities.

As a Public Benefit Corporation and a certified B-Corp, we deliver environmental and social impact using our products and tech. Through our Giveback program, we partner with organizations such as the ACLU, New Story, The Humane Society, Malala Fund, American Red Cross, 360.org, charity: water, and dozens of others, and have donated millions towards reforestation, education, animal rights, LGBTQ+ causes, access to water, and more.
What youre applying for
Were looking for a senior-level backend engineer to join our growing Engineering team in TLV.

This role will require you to bring features to the finish line while collaborating closely with other developers, as well as with the Product, QA, Data, and Machine Learning teamsall with the goal of delivering a seamless, joyful experience for our customers.
In this role youll
Help build our products using microservices written in Typescript (using NestJS) and Ruby on Rails running over Kubernetes
Leverage our in-house autonomous tools to manage all development flow, from setting up our development environment to creating git branches and deploying services to production
Collaborate closely with the Product team, in a self-sufficient squad to achieve the squads OKRs
Be the owner of your domain to ensure code quality, performance, and scalability of our products
Coach and mentor other developers and help them elevate their skills

we are seeking a skilled and innovative Backend Engineer to join our Core Integration Framework team. Youll be at the forefront of building and evolving the infrastructure that powers real-time integration with healthcare systems, reflecting their behavior with accuracy, performance, and scale.

As part of our growing infrastructure group, youll take on challenging system architecture and performance problems as we scale \to support even more health systems. Youll work closely with system reversers, product managers, QA engineers, and \platform developers to deliver high-impact features while ensuring the safety and reliability of our core infrastructure.

This is a high-leverage engineering role with the opportunity to explore cutting-edge approaches, like AI agents, to improve time-to-market and increase the resilience of our integration pipelines.

What Youll Do

Design and implement robust, scalable systems for healthcare integration.
Reverse-engineer third-party EHR systems to craft integration strategies for data extraction and real-time state modification.
Lead the development of real-time systems using JavaScript/TypeScript, applying best practices in performance optimization and system architecture.
Write clean, efficient, and well-tested code, with a strong focus on automation and coverage (unit, integration, and E2E testing).
Take ownership of the full development lifecycle, from architecture and development to deployment and monitoring in production.
Mentor peers, contribute to team-wide technical growth, and help drive AI-powered innovation within our infrastructure domain.

seeking a Senior Back End Software Engineer to join our Agile development team!
As part of your role, you will be part of the team responsible for building foundational services and contributing to developing next generation of Construction Cloud Platform, which is used with mobile, web applications, and cloud services.

we work in a hybrid working environment based in our TLV office. At present it's two days onsite with the team.
Responsibilities
Work as a member of a self-organised agile team that builds, owns, and runs the service
Contribute to all aspects of service development using Node.js
Work closely with product management to understand and translate requirements into elegant implementations

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.

As a customer-centric tech company, we created an insurance experience that is smart, instant, and delightful.
youll be working with a group of like-minded makers, who get a kick out of moving fast and delivering great products. We surround ourselves with some of the smartest, most motivated, creative people who are filled with positive energy and good karma.

Unlike most publicly traded companies, were nimble and efficient. We take pride in the fact that we still think and operate like a startup. We dont care much about titles and hierarchy and instead focus on innovation, bold moves, and challenging the status quo.

Were built as a lean, data-driven organization that relies on a common understating of objectives and goals to provide teams with autonomy and ownership. We dont like spending our days in meetings and we skip committees altogether. theres no such thing as going over someones head. We have zero tolerance for bureaucracy, office politics, and lean-back personalities.

As a Public Benefit Corporation and a certified B-Corp, we deliver environmental and social impact using our products and tech. Through our Giveback program, we partner with organizations such as the ACLU, New Story, The Humane Society, Malala Fund, American Red Cross, 360.org, charity: water, and dozens of others, and have donated millions towards reforestation, education, animal rights, LGBTQ+ causes, access to water, and more.
Were looking for a backend engineer to join our growing Engineering team in TLV.

This role will require you to bring features to the finish line while collaborating globally and closely with other developers and stakeholders.
In this role youll
Help build our products using microservices written in Typescript (using NestJS) and Ruby on Rails running over Kubernetes
Collaborate closely with US-based Product stakeholders and both in house and remote team members while being a part of a self-sufficient squad to achieve the squads goals
Be the owner of your domain to ensure code quality, performance, and scalability of our products, including tech design and architecture ownerships
Leverage our in-house autonomous tools to manage all development flow, from setting up our development environment to creating git branches and deploying services to production

Required Senior Backend Engineer User Data
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 us
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 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.

Were looking for passionate individuals who thrive in collaborative environments and are eager to drive impact. If youre excited about solving complex challenges in bold, innovative ways, wed love to connect with you.

What are we looking for?
Our team is responsible for Endpoint Protection services, and covers end-to-end from agent to backend to frontend the following areas:
Building services that process traffic between our Agent (which is responsible for protection across all kinds of OS - Windows, Linux, macOS) and our cloud-based Management console
Developing a big part of backend of this Management console itself (which is in short a large-scale distributed system, a complex "control application" used by IT security teams of S1 clients - that can be seen in many S1 vs. Ransomware demos) and the management of the "fleet" of agents deployed on endpoints in client's environments (backends written in Python and Go and deployed in Kubernetes)
Were a team with a significant impact on how our customers environments are protected, and how they interact with agents. As a core team at S1, we're heavily involved in every end-to-end effort, features development and are key contributors to the design and build of the right architecture of S1's cybersecurity solution to match the scale & hyper-growth of our business.

What will you do?
Design, develop, and support robust backend system our main product line - Endpoint Protection
Feature Design and Documentation: Take ownership of designing new features and creating documentation.
Database Schema Design: Design efficient database schemas to support new and existing features.
Backend Service Development: Develop and maintain backend services using Go and Python. Create RESTful APIs to facilitate seamless interaction between the backend, front-end, and other systems.
Integration: Integrate with various cloud services (AWS, GCP), databases (Postgres, MongoDB), messaging systems (Kafka), and caching solutions (Redis) to enhance system functionality and performance.
Feature Support and Validation: Provide support during the feature validation cycle, ensuring smooth deployment to production environments.
Performance Optimization: Optimize system performance and scalability to manage demanding workloads effectively.
Requirement Translation: Understand product requirements and translate them into technical solutions.
Cross-Team Collaboration: Work closely with product, validation, and front-end engineering teams to deliver and maintain high-quality features.
Customer Communication: Communicate with customer care and support teams to address issues.
Code Quality and Maintenance: Write clean, maintainable code. Stay up-to-date with the latest advancements in backend technologies and security best practices.
Innovation and Creativity: Bring creativity to the table. Explore new solutions and technologies to improve our product continuously.