Revenue for the financial year came in at $A1 billion, resulting in a net profit after tax of $30.4 million.
The company said it had repaid $50 million in debt and its order book stood at $2.6 billion.
“Our business improvement program has enabled us to maintain our position in the market and reduce the impact of industry factors such as cost pressure and increased competition,” Macmahon CEO Ross Carroll said.
“Our four pillars of success, being safety, business improvement, business development and people have provided us with clear areas of focus, and we are continuing to invest resources in these areas to ensure we achieve greater performance moving forward.”
Looking ahead, Macmahon forecast 2015 revenue between $750 million and $1 billion.
Carroll said the company’s balance sheet was strong and it entered the new financial year in a strong position.
“The company generated operating cash flows from mining operations of $125.2 million. This represents an increase of 6% on the previous corresponding period,” he said.
“Our order book currently stands at $2.6 billion and is supported by long-term contracts with blue-chip clients.
“We are also tendering for about $2.3 billion of new work, most of which is for projects that are scheduled to start in the coming 12-18 months.”
Taking stock of Macmahon’s surface mining operations, Carroll said performance had improved steadily over the year, aided by real-time monitoring and analysis technology.
He said the company’s underground operations also performed well, with work at BHP Billiton’s Olympic Dam continuing to expand.
Elsewhere, Macmahon said around $US22 million ($A23.6 million) in progress payments were overdue at Tavan Tolgoi.
The contractor said operations had been suspended by Mongolian state-owned Erdenes Tavan Tolgoi, operator of the massive project, due to a range of disagreements.
Macmahon has been operating at Tavan Tolgoi since 2012 and its contract is set to expire in 2017.
The company said negotiations were in progress to attempt to resolve the dispute.