Mohammed Sagban

Professional Summary

• Full-stack Software Engineer with 8+ years of experience shipping production web and mobile products across EdTech, fintech, banking, and government sectors.
• Tech Lead on an EdTech platform that scaled from ~500 to 10,000+ active students in one year, with end-to-end ownership of architecture, delivery, and team mentorship.
• Strong across the stack: TypeScript, React, React Native, Next.js, Node.js, Hono.js, Cloudflare Workers, REST and GraphQL APIs, PostgreSQL, and AWS.
• Practical focus on system design, code quality, code review, CI/CD, Test-Driven Development (TDD), and Agile/Scrum delivery in regulated and high-availability environments.

Work Experience

1. Senior Software Engineer

   Celestify | Part-time → Full-time (Feb 2026)

   Mar 2023 — Present

   • Shipped 6+ production web and mobile projects for enterprise clients in the oil, automotive, and industrial sectors, owning scope from API contract through deployed UI.
   • Cut cold-start API latency by ~60% by migrating client workloads from traditional Node.js servers to Cloudflare Workers with Hono.js.
   • Drove technical decisions on a 4-person engineering team, running code reviews and CI/CD-based releases through Linear and JIRA in an Agile/Scrum workflow.

   Key tools and technologies used in this role: React, TypeScript, React Native, Hono.js, Cloudflare Workers.

2. Tech Lead and Full-Stack Engineer

   Eduo, Al-Qadisiyah, Iraq — Hybrid | Full-time

   Jan 2025 — Jan 2026

   • Scaled an EdTech platform from roughly 500 to over 10,000 active students within 12 months (20x growth) while owning architecture, cloud cost decisions, vendor selection, hiring direction, and mentorship for a 5-engineer cross-functional team.
   • Optimized cloud infrastructure spend by selecting Cloudflare Workers and serverless edge compute over traditional cloud hosting, sustaining 10,000+ users and 200+ concurrent live classroom sessions at scale.
   • Architected the full system on React, React Native, Cloudflare Workers, and PostgreSQL, separating mixed-mode instruction from exam sittings and launching DRM-protected live video, POS/agent code distribution, teacher-aligned finance, and Telegram integration.

   Key tools and technologies used in this role: Technical Leadership, System Design, React, React Native, TypeScript, Cloudflare Workers, PostgreSQL.

3. Senior React Native Developer

   ScrollBites | Contract

   Jul 2023 — Jun 2024

   • Shipped 10+ React Native features for a global restaurant discovery app, contributing to core discovery, sharing, and engagement flows.
   • Reduced average app cold-start time by ~30% through bundle splitting and lazy navigation, improving first-impression metrics.
   • Integrated Node.js and NoSQL backend services and contributed to a CI/CD-driven release pipeline shipping weekly to production.

   Key tools and technologies used in this role: React Native, Node.js, NoSQL, CI/CD.

4. Web and Mobile Developer

   Digital Logic | Full-time

   Aug 2022 — Feb 2023

   • Built 4 production applications at Digital Logic for Iraqi government clients across health, defense, communications regulation, and the national electronic passport program.
   • Owned frontend implementation across multiple regulated, user-facing flows using React, React Native, .NET, and Tailwind CSS.
   • Reduced UI defect rate before release by tightening cross-team review on a 6-person engineering group spanning frontend, backend, and QA.

   Key tools and technologies used in this role: React, React Native, .NET, Tailwind CSS.

5. Frontend and Mobile Developer

   Qi Card | Full-time

   Aug 2017 — Jul 2022

   • Maintained banking and electronic payment interfaces serving 3M+ cardholders nationwide over 5 years, on one of Iraq's largest fintech platforms.
   • Implemented 20+ financial workflows for transactions, account management, and payment processing across React.js, Vue.js, jQuery, and React Native.
   • Partnered with product and engineering to catch edge cases before release, cutting critical post-release UI defects by ~40% during a high-growth period.

   Key tools and technologies used in this role: React.js, Vue.js, jQuery, React Native.

Education

• Bachelor of Pharmacy

  2020 — 2025

  Al-Kafeel University, Karbala, Iraq

Technical Skills

• Languages: TypeScript, JavaScript, SQL
• Frontend: React, Next.js, Vue.js, jQuery, Tailwind CSS, Redux
• Mobile: React Native, Ionic, Capacitor, Flutter
• Backend & APIs: Node.js, Express, Laravel, Hono.js, .NET, REST APIs, GraphQL
• Cloud, DB & DevOps: AWS, AWS Lambda, Cloudflare Workers, Docker, PostgreSQL, MongoDB, Firebase, CI/CD
• Testing & Practices: Jest, Vitest, React Testing Library, Playwright, Test-Driven Development (TDD), Agile Methodologies, Scrum, Code Review, Mentorship