Hi,
— I'm Mahbub Zulkarnain
Project Manager & Solution Architect embedded at Telkomsel. Delivering enterprise-scale products across telecom, fintech, and IoT with Golang & Node.js.
About
8+ years spanning software engineering and project management — from building backends at startups to delivering enterprise infrastructure at Indonesia's largest telco. Currently embedded as Project Manager & Solution Architect at PT Telekomunikasi Selular (Telkomsel), leading a 20+ person cross-functional team across application development, platform engineering, and telecom infrastructure.
Deep technical roots in Golang, Node.js, and Kubernetes — combined with hands-on experience in telecom protocols (VoLTE/IMS, OpenSIPS), private cloud deployment (Tencent Cloud Enterprise), and fintech compliance (PCI DSS 4.0). Fluent coordinating with international vendors including Tencent, Huawei, Titanicom, and H3C.
Experience
Project Manager & Solution Architect
- SISCAMLING — Anti-scam mini-app protecting 84M Telkomsel subscribers from fraudulent calls & phishing, built on Tencent Cloud Mini Program Platform.
- CloudX — Migration of Telkomsel's core communication infrastructure (SBC, IMS, SCC-AS, PBX, SCCAS, GMSC, and others) to on-premise VMWare platform.
- Duwit — B2B digital wallet platform (QRIS, PPOB, bank transfer) with double-entry ledger architecture on Kubernetes, PCI DSS 4.0 compliant.
- Echo — Captive portal system on IndiHome ONT (Huawei) with QRIS payment via Finpay & OTP verification.
- Tencent Co-CDN — CDN co-location deployment at Telkomsel datacenter, 3 Terabytes capacity.
- Palm Scan Solutions — Biometric palm scan & Tencent Cloud Enterprise private cloud deployment for Telkomsel enterprise sites.
Tech Lead Earlier role
- Volta — Consumer mobile app for electric vehicle customers (trip history, charging station locator, subscription management).
- Fleet Management — B2B fleet monitoring for Volta EV enterprise partners across Indonesia.
- Semolis — EV rental platform with real-time availability & payment integration.
- SGB — Smart battery exchange system managing swap stations & battery health monitoring.
Software Developer
- Motion Banking — Digital banking app with account management, fund transfers, bill payments, and core banking API integrations.
Software Developer
- Hacktiv8 Campus Platform — LMS for full-time students with curriculum access, assignment submission & progress tracking.
- Hacktiv8 Bootcamp Application — Bootcamp management platform for cohort enrollment & graduation assessment.
- Kode ID — Online coding education platform for Indonesian developers.
Tech Lead
- Redstorm — Bug bounty marketplace connecting security researchers with companies seeking vulnerability assessments.
- Timah — Internal enterprise application for PT Timah Tbk employees.
Software Developer
- Tettot UMKM — Social commerce platform for Indonesia's UMKM community.