Technical Writer - Software Engineering

I'm looking for a technical writer who can help write posts for our blog and social media. We are a software engineering company, so we want to write blog posts targeted at people who may want to hire us to build software applications for them.

- The role will be part time or casual (with the option of some full time in the beginning to get some content out there)
- Good english is a must
- Some knowledge of Software Engineering would be an added bonus but not essential if you can demonstrate some technical knowledge in other domains.

Please also attach some previous work