דרושים » תוכנה » Senior backend Developer

We are seeking a highly skilled and experienced Senior Software Engineer to join our backend team. The ideal candidate will have a strong background in distributed systems, data engineering and software engineering, and will be responsible for leading the design, development, and deployment of top quality and an online ML system.
What you'll be doing
Architect and Build: Design, develop, and deploy robust, scalable, and high-performance distributed systems that form the backbone of ironSource's next-generation ML ad network.
Real-Time Ad Serving: Engineer and optimize critical systems for real-time ad serving, enabling machine learning models to make intelligent, low-latency decisions for optimal ad selection.
ML Infrastructure Innovation: Drive the evolution of our ML capabilities by researching, evaluating, and implementing cutting-edge techniques for feature stores, data aggregation, and model serving infrastructure.
Data Pipeline Engineering: Collaborate closely with data scientists and product managers to design, build, and maintain efficient and reliable data lakes and data pipelines, ensuring high-quality data for ML training and analytics.
Operational Excellence: Take ownership of key system components, ensuring their reliability, performance, and scalability in a production environment through proactive monitoring and continuous improvement.

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.

We are looking for a Senior Backend Engineer to join our R&D team and play a pivotal role in building our multi-cloud scanning system. This position is ideal for engineers who excel in solving large-scale challenges within a fast-paced startup setting, and who are passionate about pushing the boundaries of data security in a cloud environment.

Responsibilities:
Lead the design and development of our cloud scanning orchestration system, ensuring efficiency and scalability across multiple cloud environments.
Handle multiple system interactions, working with microservices and cloud-native components to build a robust and flexible scanning solution.
Research various Data sources APIs in order to develop connectors and perform efficient data scanning. Develop and implement efficient data scanning connectors by researching the APIs of various data sources.
Collaborate closely with cross-functional teams, including R&D engineers, product managers, and solution engineers, to deliver end-to-end features and tackle complex engineering challenges.
Gain a high-level architectural perspective while maintaining the ability to dig into technical specifics and optimize system performance.

We are seeking a talented backend engineer to join our growing team, owning our innovative product, Code Defender. Code Defenders mission is to detect and protect against client-side threats and enable our customers to be compliant with the latest security and privacy standards.
As a member of the team, you will play a crucial role in ensuring the product's success, by designing and developing advanced features, handling large-scale data, aggregations, while utilizing cutting edge technologies.
Collaboration with cross-functional teams including Platform, Product, Engineering, and Research will be integral as you lead feature development from inception through to deployment, applying backend methodologies and best practices.
What you'll do:
Develop cloud-based high-scale systems: Leverage the latest in cloud technology to build systems that can handle the demands of significantly large datasets with efficiency and reliability.
E2E Ownership: Take full responsibility for projects from the initial design and architecture stages through to implementation and rollout,
Innovate and Optimize Operations: Continuously seek out and implement innovations and optimizations to improve the performance and scalability of our systems.
Tackle challenging problems and find creative ways to solve them.
Participate in cross organization engineering innovation forums and technical guilds.
Collaborate on cross-functional teams: Work closely with other technical and research teams to integrate various products seamlessly, ensuring cohesive technology solutions across the board.
Ensure System Security and Compliance: Prioritize the security of our systems and ensure compliance with all relevant data protection regulations.
Performance Monitoring and Troubleshooting: Regularly monitor system performance, identify and resolve any issues to maintain optimal operation.
Work on cutting-edge technologies in coding, data persistence, CI/CD pipelines, and data pipelines. This includes expertise in any of the common backend development languages, SQL and NoSQL databases like MongoDB and Redis, messaging systems such as Kafka, search technologies like Elastic, and cloud services.

We are seeking an experienced Senior Backend Engineer to join our Data Services team.
The Data Services team manages, provides and processes the large volumes of data, used by our Scientists and customers.
In this role, you will be responsible for building new cloud and on-prem data systems and infrastructure, as well as maintaining, improving, and enhancing serving systems, in order to provide highly usable, robust, and efficient data services.
Responsibilities
Design, develop, and implement robust backend on-prem and cloud services
Build and maintain scalable, efficient, and robust data systems and infrastructure
Participate in the selection and utilization of new technologies, databases, and third-party services
Contribute to the continuous improvement of our development processes and practices

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.

We are looking for a Staff Engineer.
What Youll Do:
Lead architecture and system design for critical components of the Developer Experience platform, ensuring scalability, resilience, and long-term maintainability.
Own end-to-end delivery of complex initiatives, from requirements gathering and design to implementation, rollout, and observability.
Design, implement, and maintain robust microservices supporting high-throughput and low-latency operations.
Define and uphold API design standards, including gateway configuration, versioning strategy, and long-term lifecycle management.
Build and optimize backend systems that enable developer-facing products such as SDKs, APIs, and webhooks.
Work with both relational and NoSQL databases to ensure data consistency, scalability, and performance.
Collaborate with cross-functional teams to design systems that meet operational and business requirements.
Research and implement cloud-native architectures to support growth and scalability.
Contribute to the creation of developer tools and standards that improve the usability of our APIs and SDKs.

An innovative network security solutions provider, is at an exciting time in its history and is growing fast! We are looking for a highly skilled and versatile Senior Backend Engineer to join our development team.
As a Senior Backend Engineer, you will be responsible for designing, developing, and maintaining the backend infrastructure and components of our platform. As part of your role, you will also work on the frontend aspects of our platform and collaborate with stakeholders and cross-functional teams to optimize full-cycle system performance.
Responsibilities:
Design, develop, and maintain backend systems and APIs to support our web applications.
Implement and optimize data storage solutions, including databases, to ensure efficient and reliable data management.
work closely with front-end developers to integrate backend functionalities and ensure a seamless user experience.
Collaborate with product managers, stakeholders, and cross-functional teams to gather requirements, translate them into technical specifications, troubleshoot and resolve backend-related issues, and optimize system performance.

We are looking for an outstanding and passionate Senior Backend Engineer to join a rapidly growing team. We work in a fast-paced environment, building a content discovery platform used by millions of users. The service enables unique content discovery experiences allowing users to access and find their favorite content in a simple and accessible way. Our team uses the most up-to-date technologies to build a scalable and resilient product that is growing at a high pace. This is a great opportunity for those looking to make a huge impact on a technically challenging product with a huge audience. We value team players with technical excellence and a sense of ownership who know how to choose the right tool for the right task.
What you'll be doing
Design, develop, test, deploy, maintain, and enhance large-scale software solutions.
Write clean, highly scalable, and top-quality code that sets industry standards.
Work closely with the Product, Architects, DevOps, and BI.
Continuously learn and stay up to date with emerging trends and technologies in the industry.
Drive innovation by researching and implementing new technologies and best practices within the development team.

We're looking for a Senior Backend Engineer to join the Acquisition team, as part of the Data Group.
In this role, youll play a key part in designing, developing, and maintaining our data gateway, integrating new data sources into our system, and tackling challenges related to scale, efficiency, and cost-effectiveness. Youll also help research and define solutions to complex technical problems as we continues to innovate in the SaaS security space.
Tech stack: AWS, Kubernetes, Python, Postgres, Redis, Rabbit, Kafka, Date-Lake.