Staff Systems Architect / Principal Engineer

Served as a Staff Technical Lead for an AI-agent ecosystem, resolving architectural tech debt, building enterprise features, and unblocking engineering teams. Acted as a strategic technical advisor for Sales, Marketing, and Executive Leadership to translate complex tech capabilities into business value. Key Achievements: - Enterprise AI Control Plane: Engineered a secure management platform handling API keys, granular ACLs (model whitelists/blacklists), rate limits, and real-time usage telemetry across the core LLM gateway. - High-Throughput Ingestion Architecture: Re-engineered core ingestion layers to support high-performance batch writing, optimizing data paths for high-frequency analytical events and eliminating database bottlenecks. - Multi-Tenant SaaS Data Architecture: Designed secure, multi-tenant storage schemas from scratch, ensuring strict logical data isolation and zero cross-tenant data leakage by design. - AI-Driven Support Automation: Architected an omnichannel support engine integrating streams from IDE plugins, email, and messengers to provide automated AI-driven responses and reduce L1/L2 load. - Identity & Access Management (SSO): Deployed central authentication via Keycloak, configuring seamless SSO across 3 SaaS products and designing customized blueprints for secure enterprise on-premise deployments. - Software Supply Chain Security: Directed vulnerability remediation using Trivy scanning; executed complex codebase refactoring to resolve breaking upgrades and dependency conflicts across repositories. - Team Enablement: Guided and unblocked a team of 8 backend engineers, establishing unified technical standards, architecture patterns, and cleaner code practices. - Zero-to-One Product Delivery: Partnered directly with founders and product leadership to drive early-stage product engineering initiatives, translating ambiguous customer needs into scalable full-stack application architecture.

Served as the core technical leader and Director of Engineering, taking total ownership of the platform’s architecture, engineering strategy, and organizational growth. Trusted by the CEO to translate complex requirements into resilient production solutions while collaborating with Executive Leadership and Sales/Marketing to align high-load infrastructure with business goals. Key Achievements: - Petabyte-Scale Ingestion: Architected a distributed data pipeline that ingested and indexed the entirety of GitHub, building a global 21 TB open-source code index within a ScyllaDB cluster in a 2-month window. - High-Throughput Analytics: Designed highly optimized search and pattern-matching algorithms, enabling the platform to scan and analyze 50,000+ client source files in under 60 seconds. - Organizational Leadership: Recruited and managed a cross-functional team of 10 engineering professionals; established architecture RFC patterns and CI/CD pipelines, increasing development velocity by 3x. - Cloud Cost Optimization (TCO): Cut monthly cloud infrastructure expenses by 50% through deep ScyllaDB partition resizing, database index redesign, aggressive query optimization, and automated data purging. - Polyglot Data Layer: Engineered a multi-database storage strategy (ScyllaDB, PostgreSQL, MongoDB, Elasticsearch) to balance massive parallel write streams (300K+ inserts/sec) with sub-second analytical queries. - Technical Governance: Led system design reviews, implemented rigorous standards for software quality and operational reliability, and mentored senior engineers into architectural ownership roles. - End-to-End Product Scaling: Owned full product delivery lifecycle, successfully transforming early-stage prototypes into a highly scalable, market-ready production platform.

Provided high-level technical consulting and systems architecture design for high-availability, multi-tenant B2B SaaS platforms. Key Achievements: - Telecom & Media SaaS (Ad-Tech): Architected a nationwide B2B marketing and telecom platform for the Israeli market, integrating media portals with cross-channel communications (VoIP, SMS, Email, Messengers) and an ad-tech marketplace serving 2,000+ active SMB clients. - High-Availability Retail Platform: Designed a distributed event-tracking ecosystem for a major Estonian retail chain with thousands of retail locations, handling real-time mobile crowd-sourced data ingestion. - Scale & Performance Engineering: Engineered both SaaS platforms to reliably sustain traffic spikes of 1,000+ RPS using node duplication, automated load balancing, and resilient backend routing under strict hardware efficiency targets. - Multi-Tenant SaaS Data Isolation: Designed a secure, multi-tenant database schema and storage architecture from scratch, ensuring strict logical data isolation and zero cross-tenant data leakage by design.

Full engineering solutions, low-level algorithmic achievements, and team leadership details available on LinkedIn. - ITFB Group | Senior Systems Architect / Lead Java Developer | 2014 — 2017 | Architected a digital document workflow SaaS for MTS (Top-1 Telecom, 70M+ subscribers); automated secure audit trails for 10k+ corporate contractors. - NVision Group | Senior Systems Architect | 2009 — 2014 | Scaled core CMS platform for MTS (Top-1 Telecom) to sustain 10,000+ RPS at peak loads; built enterprise Knowledge Management platform (1,000+ RPS constant load). - EMCG | Systems Architect | 2008 — 2009 | Architected high-traffic video streaming distribution pipelines and user-generated video ingestion portals. - LANIT Consulting | Java Team Lead | 2007 — 2008 | Led an enterprise team building high-performance data deduplication engines for millions of customer profiles using custom fuzzy-matching algorithms. - SoyuzTelecom, JSC | Senior Java Systems Engineer | 2006 — 2007 | Developed high-availability backend services integrated with IVR, SMS gateways, and carrier-grade billing platforms. - Physics and Power Institute | Senior Systems Engineer | 2004 — 2005 | Developed real-time telemetry data ingestion layers and predictive algorithmic modeling for nuclear physics research. - AuRoom Group, LLC | Systems Engineer | 2001 — 2004 | Built proprietary fuzzy text-matching search engines and deterministic graph-to-text compilers from scratch in C/C++.