Erez Fiengertz
Senior Back End Developer @Beamr
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WORK HISTORY
Senior Back End Developer @Beamr
IL
Architected and evolved the company’s cloud-native AWS platform, built around microservices in Python with supporting Node.js services, operating at scale in production- Served as a technical reference point, contributing to design reviews, prioritization, and system-level decision making- Designed and built a scalable, event-driven data ingestion pipeline, leveraging managed AWS services to achieve high throughput while optimizing cost and operational complexity- Designed and implemented a fair-sharing scheduling mechanism at the service layer, ensuring predictable and equitable request handling under high concurrency- Built a cloud-native automation and orchestration system for complex, multi-stage workflows, including failure handling and retries, while managing on-demand EC2 lifecycle provisioning via AWS SDK and SSM to balance performance and cost- Acted as the team’s Kubernetes focal point, guiding architectural decisions and production troubleshooting, while continuously evolving backend services through ongoing development- Drove CI/CD and DevOps automation initiatives, improving deployment reliability, observability, and overall developer productivity.
EDUCATION
The College of Management Academic Studies
Bachelor’s Degree, Business Management and Information Systems
SKILLS
ABOUT EREZ FIENGERTZ
Senior Backend Engineer with technical leadership and extensive experience designing and operating large-scale, cloud-native SaaS platforms on AWS. I specialize in backend architecture, scalability, reliability, and automation, and have spent years building and owning distributed systems — from microservices and event-driven pipelines to high-load, production-grade platforms. Alongside hands-on development, I’m deeply involved in cloud infrastructure, CI/CD, and operational excellence. Across several roles, I naturally took on technical leadership responsibilities, including owning architecture and design decisions, acting as a focal point for Kubernetes and cloud practices, driving cross-team initiatives and platform migrations, and mentoring engineers. Earlier in my career, I led a performance engineering team and owned performance practices of a large-scale product. I’m most effective in roles that combine hands-on backend development with system ownership and technical leadership.
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