Open to opportunities

Defrian Supriady

@defriansupriady

Message

I am an experienced software technical consultant specializing in C# desktop apps, APIs, and commodity trading systems.

Indonesia

Message

What I'm looking for

I seek a hands-on technical consulting role building C# desktop and backend systems or firmware for embedded devices, in a collaborative company that values product ownership, learning, and client-facing support.

I am a software technical consultant specializing in desktop applications using C#, .NET, WinForms, WPF and Web API, with deep experience in commodity trading and risk management systems.

At Allegro Development Corp., I developed and supported Commodity Trading and Risk Management software, adding new modules, extending features, and upgrading client databases to the latest versions to meet client requirements.

Earlier roles in firmware and R&D had me design, implement, test, and maintain firmware for printers, scanners and smart electricity meters; I led model promotion and cross-product projects, and I work in Indonesian natively, with proficient English and basic Japanese.

Experience

Work history, roles, and key accomplishments

Software Technical Consultant

Allegro Development Corp.

Sep 2019 - Aug 2025 (5 years 11 months)

Developed and supported commodity trading and risk management software, adding new modules and upgrading client databases to latest versions. Collaborated with clients to implement feature requests and maintain product stability.

C .NET WinForms WPF MVVM SQL Oracle Crystal Reports

Firmware Engineer

PT EDMI Manufacturing Indonesia

Jan 2019 - Sep 2019 (8 months)

Developed firmware and software for electricity smart meters, improving firmware design and supporting manufacturing and testing processes. Implemented and tested firmware to meet product requirements.

C Test Automation Embedded Systems Electronics

Model Promotion Leader

PT Indonesia EPSON Industry

Feb 2014 - Jan 2018 (3 years 11 months)

Managed model promotion and coordinated firmware development milestones for business and customer inkjet printers, streamlining review and mass-production signoff. Coordinated with product managers and manufacturing for release readiness.

Firmware Development Project Management Release Management

Firmware & Software R&D Engineer

Seiko Epson Corp.

Jul 2014 - Jul 2015 (1 year)

Led firmware R&D for printer and scanner devices and contributed to cross-product QMastor project to prepare products for mass production. Reviewed firmware with stakeholders and supported mass-production readiness.

C Hardware Integration QA Testing Cross Functional Collaboration

Education

Degrees, certifications, and relevant coursework

Seiko Epson Corporation

Internal Training, Firmware & Software R&D

2014 - 2015

Activities and societies: QMastor cross product project

Completed internal Firmware & Software R&D training at Seiko Epson from July 2014 to July 2015 focused on firmware development and cross-product projects.