# Yaman Tarakji > Backend-Leaning Full-Stack Engineer | PHP · JavaScript · SQL | Built a Live Multi-Tenant SaaS CRM | UC Berkeley EECS ’25 Location: Berkeley, California, United States Profile: https://flows.cv/yamantarakji I'm a backend-leaning full-stack engineer and UC Berkeley EECS graduate ('25) who has been building production web systems since 2016 — starting with ERP integrations and custom internal tools, and eventually founding QueryQode CRM, a live multi-tenant SaaS I built from scratch and still run in production today. QueryQode manages 11,200+ leads and 13,779+ enrolled students across 5 offices, 54 users, and 323 sub-agents. Building it end-to-end gave me deep, hard-won experience in the things that actually matter in backend systems: SQL optimization and indexing, three-tier RBAC with per-operation permissions, audit logging that captures before/after diffs for compliance and debugging, async API design that cut action latency from ~2–4s down to ~300–600ms, and multi-tenant data isolation that keeps a partner portal's financial data cleanly scoped away from a full CRM user's view. Beyond QueryQode, I've shipped production work across a range of contexts: a reusable CMS deployed across 9 small-business client sites through UC Berkeley's SBVI program, ERP-to-Shopify integrations that automated hundreds of daily invoice entries at New Style Technology, and a course logistics automation script that cut GitHub repo provisioning for 35 student teams from 3 hours to 15 minutes as CS169A course staff at Berkeley. My core stack is PHP, JavaScript, and SQL (MySQL, SQL Server, Oracle), with production experience in Node.js, Express, Rails, React, and a working knowledge of Python, Ruby, Go, Java, and C/C++ from coursework and side projects. I'm looking for full-stack or backend SWE roles where the work involves real data problems, internal tooling, or systems that have to be reliable at scale. If that sounds like what your team is building, I'd love to connect. ## Work Experience ### Founder & Software Engineer @ QueryQode Jan 2020 – Present | Berkeley, California, United States Founded and shipped a multi-tenant CRM SaaS built on PHP, JavaScript, and MySQL — serving 5 offices, 54 users, and 323 sub-agents, with 11,200+ leads and 13,779+ enrolled students managed in production. • Implemented async API operations for all CRUD and status-change actions, reducing response times from ~2–4s to ~300–600ms via preloaded reference data and SQL indexing and query optimization. • Designed an audit logging system capturing before/after field diffs, user identity, timestamp, and operation type — eliminating data loss risk from user errors and providing a complete change history for compliance and debugging. • Built a three-tier RBAC system (admin / employee / sub-agent) with per-user, operation-level permissions, scoped data visibility, and financial data isolation — supporting both full CRM access and a read-only partner portal via unique secure links. • Built a per-sub-agent lead capture system with unique landing pages, UTM parameter tracking (source, campaign, medium, term), customizable auto-reply emails, and automatic commission attribution on application financials. ### Full Stack Developer @ San Diego Mesa College Jan 2022 – Present | San Diego, California, United States Contracted by the SBVI program to build and maintain production websites for startup and small-business clients. • Built a reusable Bootstrap + PHP/JS CMS supporting SEO fields, form submissions, brand and color controls, navigation CRUD, and WYSIWYG custom pages — deployed across 9 client sites. • Managed the full project lifecycle (requirements through 12-month post-launch support) for 9 clients, delivering each engagement in approximately 30 hours from kickoff to launch. ### CS169A Software Engineering — Tutor / Course Staff @ UC Berkeley College of Engineering Jan 2025 – Jan 2025 | Berkeley, California, United States Selected as course staff for UC Berkeley's software engineering course (CS169A), supporting 35 student teams through Rails-based full-stack development, agile workflows, testing, and debugging. • Built scripts to automate GitHub repository provisioning and consistency checks for all 35 student teams, cutting per-semester setup time from 3 hours to 15 minutes and eliminating manual errors. ### Web Developer @ New Style Technology Jan 2016 – Jan 2020 | Jeddah, Makkah, Saudi Arabia Full-stack developer responsible for building, integrating, and maintaining internal web tools and third-party platform connections. • Integrated a SQL Server-based ERP accounting system with Shopify and OpenCart, automating invoice entry for hundreds of daily transactions and eliminating approximately 1 minute of manual entry per invoice. • Built a custom ticketing and attendance system with automated certificate issuance from verified check-ins, cutting post-event fulfillment from several hours to minutes. • Automated post-event attendee processing, reducing per-entry throughput from ~30–45s to ~5s and cutting required staffing from 3–4 employees to 1 monitor. ## Education ### Bachelor of Science - BS in Electrical Engineering / Computer Science UC Berkeley College of Engineering ### Associate's degree in Liberal Arts & Sciences, Mathematics & Pre-Engineering (Computer Science) San Diego Mesa College ## Contact & Social - LinkedIn: https://linkedin.com/in/ytarakji - Portfolio: https://ytarakji.dev --- Source: https://flows.cv/yamantarakji JSON Resume: https://flows.cv/yamantarakji/resume.json Last updated: 2026-04-11