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Toan Dinh

@toandinh

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Mendix Tech Lead at Mobino Investment JSC who delivered a digital-signature platform replacing paper-based approvals.

Vietnam

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At Mobino Investment JSC, I architected from scratch and led delivery of a company-wide digital-signature platform that replaced paper-based approval and signing in all branch offices. I designed its multi-step approval flow and integrated HSM and VNPT SmartCA remote signing.

At Rikkeisoft, I led four developers through the full SDLC and led a migration from MS Access to OutSystems Reactive Web, redesigning the SQL Server schema and business logic. Earlier, I contributed to migrating a WinForms application at OCG Technology JSC and improved response time through SQL indexing and tuning.

Experience

Work history, roles, and key accomplishments

Mendix Tech Lead

Mobino Investment JSC

Dec 2025 - Nov 2026 (11 months)

Architected and led delivery of a company-wide digital signature platform, replacing paper-based approval and signing. Designed multi-step approval flows and integrated HSM and VNPT SmartCA remote signing.

Mendix Java Action REST SOAP HSMs VNPT SmartCA E Office Domain Modeling Microflows Code Review

Senior OutSystems Developer / Low-code Team Lead

Rikkeisoft

Mar 2024 - Apr 2026 (2 years 1 month)

Led a team of 4 developers through the full SDLC for an Order Management System and E-Procurement System. Migrated legacy MS Access to OutSystems Reactive Web, achieving 15% faster data processing and a 98% defect-free deployment rate.

OutSystems Reactive Web Integration Studio C#SQL Server Architecture Canvas REST SOAP Payment Gateways Team Leadership

Mendix & OutSystems Developer

BnK Solution

Aug 2023 - Feb 2024 (6 months)

Designed database schemas and architecture for internal HRM, CRM, and recruitment applications. Reduced query execution time by 25% in the Housing Management module through database optimization.

OutSystems Mendix Oracle Database Design SQL Optimization Reusable UI components

OutSystems Developer

OCG Technology JSC

Jul 2022 - Jul 2023 (1 year)

Contributed to migrating a large WinForms application to OutSystems Reactive Web for a Japanese client. Improved response time by 30% through SQL indexing and tuning of Aggregate and Data Action usage.

OutSystems Oracle SQL Redmine JavaScript HTML CSS UI UX