Site Manager

Play a key role in delivering essential housing across Adelaide and South Australia.

Harnest, part of the Mazzei Group, is seeking an experienced Site Manager to lead the delivery of social and supported housing projects. This is a hands-on role for someone who enjoys being on site, leading teams, and taking pride in delivering high-quality homes that genuinely improve lives.

What You’ll Do

• Lead the day-to-day site delivery of social and affordable housing projects

• Manage construction in line with program, budget, and safety requirements

• Ensure full compliance with OH&S, BCA, and relevant Australian Standards

• Coordinate trades, site teams, and construction schedules

• Maintain high standards across site safety, cleanliness, inductions, and inspections

• Liaise closely with Project Managers, consultants, and suppliers

• Communicate directly with clients to support a smooth and successful handover

What You’ll Bring

• 3+ years’ experience delivering residential or domestic construction projects

• Strong leadership capability with proven stakeholder coordination skills

• Solid working knowledge of the BCA, Australian Standards, and OH&S frameworks

• Cert IV in Construction Management or a relevant trade background

• White Card, current driver’s licence, and First Aid & CPR certification

• Confidence using Microsoft Project and managing site documentation

Why Join Harnest

• Join a values-led construction group, backed by Mazzei Group, with the stability and scale to support complex, long-term delivery

• Work within a business delivering $100m+ annual turnover with a $150m+ forward pipeline

• Lead meaningful, purpose-driven projects across social housing, SDA and medium-density that deliver tangible community outcomes

• Be part of a fully integrated, end-to-end business spanning advisory, design and construction - enabling greater control, collaboration and quality

• Step into a role where you are trusted to set standards, influence delivery models and shape how projects are delivered -not simply manage them

• Work alongside experienced, grounded and approachable leaders who are actively involved and genuinely invested in their people

We are an equal opportunity employer and are committed to building a diverse and inclusive workforce. We encourage applicants from all walks of life to join our team. From Aboriginal and Torres Strait Islander peoples, people from culturally and linguistically diverse backgrounds, women, LGBTQIA+ individuals, people with disability, and those who may face barriers to employment.