A Fortnite gamer who was the poster boy for a global tech company has been arrested after allegedly live-streaming the moment he bashed his pregnant girlfriend.

Luke Munday, 26, was described as a 'hard-working family man' by tech giant Cisco after landing a top job at Telstra following success with their networking academy.

In an interview last year, the tech genius said he was determined to create financial security for his young family after his father walked out on him at the age of two.

'When my partner fell pregnant with our first child, a lot changes and your responsibilities go through the roof,' he said.

'I had that philosophy I wouldn't let that happen to my own kids.'

But on Sunday night, police stormed an Oran Park home in Sydney's west and charged Munday with assaulting his pregnant de facto partner.

Two girls aged three and 20 months were inside the home at the time.

Luke Munday, 26, was live-streaming himself playing Fortnite when he allegedly assaulted his pregnant girlfriend

Police allege Munday, who goes by the name 'MrDeadMoth' on streaming site Twitch, inadvertently captured the alleged attack against his girlfriend.

Footage uploaded to Twitter begins with Munday playing the game Fortnite, an addictive multiplayer first-person shooter game.

'Go away... I'll be out soon, why can't you take that as an answer?' Munday can be seen shouting as his girlfriend begs for him to leave the computer.

The argument continues until Munday storms out of view of the camera and allegedly attacks his partner.

'Do they know you touched me and I'm pregnant,' she can be heard calling out in the video, which is being streamed to dozens of other gamers.

'I hope all of you people know that I'm pregnant and he just bashed me.'

Police arrested Munday inside a home in Sydney's west on Sunday night. His gaming station is pictured above

In a 2017 interview for global IT company Cisco, with whom he completed a course, Munday said he was determined to create financial security for his young family

The pair continue to argue until Munday allegedly snaps again, screaming: 'F*** off you dog, you don't pay the bills.'

Munday, who reportedly regularly plays Fortnite for eight hours a day, was taken to Narellan Police station and charged with assault at 11.30pm on Sunday, hours after his stream went viral on Twitter.

He was granted conditional bail and will appear in Camden Local Court on Thursday.

Police also took out an interim apprehended violence order (AVO) for his girlfriend, who was described as shaken and distressed but not seriously injured.

Munday has been stood down from his job as a network engineer with Telstra while the police investigation is ongoing. He will appear in Camden Local Court on Thursday

Telstra confirmed they had stood Munday down from his job as a network engineer while police carry out the investigation.

In a statement supplied to the Daily Telegraph, Telstra General Media Manager Steve Carey condemned domestic violence.

'This behaviour goes against what we stand for as an organisation and the work we have done to assist women impacted by domestic violence,' Mr Carey said.

'We have suspended Luke's employment pending a full investigation and will co-operate with any police investigation.

'Domestic violence has no place in our community. It is totally unacceptable and needs to be eradicated.'