As the Core Team Lead, I am responsible for leading a team in the design, implementation, and maintenance of the organization's robust infrastructure. Working closely with a talented Principal Software Engineer, we collaborate to ensure seamless operations and optimal performance.Achievements:• Manage and lead a small yet high-performing team, fostering collaboration and innovation, and enhancing efficiency and adaptability.• Drive strategic plans for infrastructure improvement, aligning technology solutions with business objectives. Lead initiatives to optimize existing systems and introduce cutting-edge technologies.• Oversee the design and implementation of scalable, resilient infrastructure solutions, integrating with new software applications.• Lead projects from conception to completion, ensuring on-time and within-scope delivery.• Proactively identify and resolve infrastructure issues, minimizing downtime and optimizing system performance.Notable work:• Seamlessly upgrade Elaticsreach infrastructure, avoiding downtime during an 8-major-versions update.• Achieve a 50% cost reduction in the Elasticsearch cluster through proactive code optimizations.• Upgrade dozens of GitHub repositories from Jenkins to new GitHub Actions CI-CD pipelines.• Migrate legacy components from EC2 to Kubernetes for improved efficiency.• Actively refactor and maintain the codebase, eliminating bottlenecks and vulnerabilities to improve development velocity.• Responsible for the production environment and mentoring support/SRE engineers in handling production issues.• Leading environment separation efforts as part of ongoing infrastructure improvements.

Leading the design and the development of DynamicYield's deep-learning recommendations engine, with technologies such as Airflow, Kubernetes, Spark, Gensim, AWS SageMaker.

Temporary Role - Maternity Leave Replacement.Led three software teams, managing 18 professionals, including software engineers, QA engineers, and Product team members.Achievements:• Optimized Elasticsearch, cutting costs by 50% and improving response times by 20%.• Mentored new engineers, boosting code coverage by 15% and reducing new feature bugs by 50%.• Encouraged a culture of improvement through internal talks, keeping the team updated on various components of our tech stack.• Ensured industry standards by upgrading CI-CD pipelines, introducing code analysis tools, and reducing vulnerabilities by 80%.• Recruited and hired 4 software engineers, retaining top talent and fostering a positive team culture.• Collaborated with the product manager to launch 100% of planned features, some of them ahead of schedule, with two adopted by 10 customers.• Provided regular updates on project status, challenges, and achievements to VP R&D, Product, and Project Managers, ensuring effective communication across teams.

Leading the recommendations & feeds backend team (7 software engineers).The team is responsible for loading customer’s feed catalogs, collecting end-users activities (views, purchases etc.), processing various recommendation strategies and serving them to end-users at high rates - 4,000 reqs/s.Specific responsibilities:• Implementing various recommendation strategies using Python (Celery), Scala (Flink), Kafka, ScyllaDB, HBase and Redis.• Feed processing - using Elasticsearch and MySql.• Monitoring - using Grafana, Graphite and Prometheus.• Building a deployment environment (running in AWS): development (locally), testing, staging and production using Kubernetes, Helm and Chef. • Building end-to-end tests using Docker, Jenkins and Rundeck.• Developing internal UI tools to visualize data correctness and control, triggering various operations and monitor running tasks/processes. • Developing Slack bot to optimize workflows.• Maintenance of legacy components (Java and PHP).

• Contributed significantly to system design and architecture as a Founding Team Member of a high-growth startup focused on developing a high-performance Petabyte-scale file-based database for cyber and genomic analysis.• Led a dynamic team, playing a crucial role in the early stages of the company's establishment.• Drove full-stack development and maintenance, emphasizing back-end responsibilities (80%) in C/C++, while also managing front-end tasks (20%) for Web UI and Windows Desktop App.• Successfully addressed complex challenges to meet customer requirements, including ensuring high performance, scalability in multi-node clusters, high availability, and seamless upgrades.• Conducted design and code reviews, fostering collaboration and maintaining code quality throughout the development lifecycle.• Played a key role in DevOps activities, employing bash and Python scripting to automate builds, deployment, and other processes. Integrated new technologies, open-source projects, and tools, introducing them to the R&D group.• Promoted Test-Driven Development (TDD) by actively participating in writing unit tests using Google Tests and end-to-end tests in Python.Notable Customers:• Verint• CompuGen• Mellanox

Responsible for designing, developing, and maintaining the management interfaces of company products.• Web: Developed RomPager embedded Web Servers using C++, HTML, JavaScript, CSS, Ajax, and jQuery.• SNMP: Developed both standard and proprietary MIBs using C/C++.• Worked on various Real-Time products, including High Availability systems such as Session Border Controllers, Multi-Service Business Routers, and VoIP/Media Gateways.• Designed and implemented automatic code generation using C# and VB.• Utilized shell scripting to enhance the effectiveness of work processes.• Worked with a variety of operating systems (Linux, Windows, and pSOS) and development tools (Source Insight, Visual Studio, Clear Case).

Commanding a platoon of 10 soldiers responsible for all communication and electronics equipment of an IDF battalion.