William Holder: Email & Phone Number

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Senior Frontend Developer at PartsTrader Markets Limited|Wellington, Wellington, New Zealand

Position:

Senior Frontend Developer at PartsTrader Markets Limited

Location:

Wellington, Wellington, New Zealand

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Last updated: 2026-04-25

Updated: 2026-04-25

Found email addresses for William Holder:

Business emails:

**@partstrader.tech

Found phone for William Holder:

+64-***-***-4635

A different William Holder?

Work Experience 13 years

Senior Frontend Developer at PartsTrader Markets Limited

Oct 2025 - Current

Senior Software Engineer at Penfold

Nov 2024 - Oct 2025

Software Engineer at Penfold

Aug 2022 - Nov 2024

React Developer at hedgehog lab

Jul 2021 - Aug 2022

Software Consultant at Waterstons

Oct 2019 - Jul 2021

Freelance Web Developer at Freelance Web Developer / Designer

Jun 2017 - Oct 2019

Automation Engineer at The Testing Consultancy (TTC)

Apr 2019 - Jul 2019

Bartender at The Coore Arms

Jun 2013 - Jan 2018

William Holder started working in 2013, then the employee has changed 6 companies and 7 jobs. On average, William Holder works for one company for 1 year 9 months.

Their professional focus is .NET Core, .NET Framework, and Amazon Web Services (AWS) across 3 core areas.

Education

Bachelor's degree at Newcastle University

A Levels at Carmel College, Darlington

Frequently Asked Questions

What is William Holder's email address?

SignalHire found a verified business email address for William Holder: **@partstrader.tech.

What is William Holder's phone number?

SignalHire found a verified phone number for William Holder: +64-***-***-4635.

How do I contact William Holder at PartsTrader Markets Limited?

You can reach William Holder through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is William Holder's professional background?

William Holder has 13 years of professional experience. They have held roles including Senior Software Engineer, Software Engineer, and React Developer at companies such as Penfold, Penfold, and hedgehog lab. Their education includes Bachelor's degree from Newcastle University, and A Levels from Carmel College, Darlington.

Is William Holder's contact information up to date?

Yes. William Holder's SignalHire profile was last updated on 25 April 2026, reflecting their current position as Senior Frontend Developer at PartsTrader Markets Limited in Wellington, New Zealand.

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