Tezza Fazar | .NET / Backend Software Engineer

Core Expertise

Over my career in manufacturing and enterprise industries, I have developed a balanced foundation in C#/.NET and Golang backend development, database maintenance, and business process automation.

.NET & C# Backend

Maintaining and developing backend web APIs and background services using C# and the .NET Core/Framework ecosystem.

Golang Backend

Building clean, lightweight, and high-performance RESTful APIs using Go, Gin Gonic framework, GORM, and JWT.

Database Maintenance

Writing efficient SQL queries, optimizing indexes, and managing Stored Procedures in SQL Server and MySQL databases.

Automation & Support

Troubleshooting system bugs, performing L3 maintenance, and building automated internal workflows using Power Platform and SharePoint.

Professional Experience

Download Resume (PDF)

.NET Developer

PT. Solusi Manufaktur Teknologi (SMART)

Jan 2026 - Present

Maintain and enhance existing C# backend applications and web APIs using .NET 6/8, Entity Framework Core, and SQL Server for manufacturing modules.
Develop new features, updates, and data integrations for the IT Inventory system (Kawasan Berikat) to align with Indonesian Customs Portal (CEISA) regulations (BC 4.0, BC 2.3).
Perform L3 production support by investigating codebase bugs, troubleshooting application issues, and implementing bug fixes to ensure system stability.
Assist in server migrations, database backup validations, and application deployments on Windows Server IIS.

.NET Developer (Production Support)

PT. Astra International

Jan 2023 - Dec 2025

Resolved application bugs and maintained feature stability for internal manufacturing and ERP systems using C# and .NET.
Improved SQL Server database query efficiency through index optimization and Stored Procedure refinements for manufacturing modules.
Developed and maintained automated internal workflows, query approval pipelines, and data reconciliation tools using Microsoft Power Platform (Power Apps, Power Automate) and SharePoint.

Software Developer (Team Lead)

PT. Pulau Intan Lestari

Sep 2021 - Dec 2022

Collaborated in a small team to maintain, enhance, and lead developments for internal ERP, inventory, and quality control systems.
Built and maintained RESTful APIs using Golang (Gin, GORM) and .NET Framework (ASP.NET MVC/Web API, EF6 Database First) integrated with SAP Business One ERP.
Developed barcode and QR-code-based inventory scanning features for warehouse logistics, improving logistical accuracy and stock opname workflows.

Selected Works

Customs & Inventory Engine

Maintained and enhanced integration features connecting internal ERP logistics databases with the government customs portal (CEISA) for automated document filings.

.NET 6/8 SQL Server CEISA API

DB Performance Tuning

Optimized database performance by analyzing query execution plans, refining indexes, and updating Stored Procedures for manufacturing systems.

SQL Server T-SQL Query Tuning

Enterprise L3 Support

Provided high-urgency L3 production support, resolving critical bugs, maintaining features, and ensuring 24/7 uptime for core ERP and manufacturing modules.

.NET C# Troubleshooting

Server & Data Migration

Executed the migration of legacy database servers to modern infrastructure, validating backups and maintaining 100% data integrity with minimal downtime.

SQL Server IIS Windows Server

Warehouse QR-Scanner API

Developed a backend web API for barcode and QR-code-based inventory scanning, integrated with SAP Business One to streamline warehouse stock-taking.

.NET Framework ASP.NET Web API SAP B1

NCR ISO Reporting System

Built a non-conformance reporting (NCR) system with user authentication and database persistence to support ISO quality control workflows.

Golang Gin Gonic GORM MySQL

Workflow Automation

Automated critical business approvals and ticket reconciliation workflows, reducing manual operations by integrating SharePoint, Teams, and Power Automate.

Power Apps Power Automate SharePoint

Hi, my name is

Tezza Fazar Tri Hidayat

I'm a .NET / Backend Software Engineer