Sales, Inventory & Operations Planning (SIOP) Manager

Colonial Group; Adelaide; On-site; AUD 180,000 - 230,000; Full time

Benefits offered by this job

Health insurance

Employee discounts

Employee Assistance Program (EAP)

Career development opportunities

Job summary

Colonial Group seeks an experienced SIOP Manager to lead end-to-end Sales, Inventory & Operations Planning for the division. This role aligns demand, supply, and financial objectives through monthly governance, scenario analysis, and executive-facing insights.

The successful candidate acts as central integrator across commercial, operations, finance and supply chain, partnering with regional leaders and the C-Suite to ensure a single, balanced plan that optimizes service, cost, cash and risk.

Qualifications

• Bachelor's degree in Business, Supply Chain, Engineering, Finance or related field.
• MBA and APICS CPIM/CSCP preferred.
• 10–15 years’ experience across SIOP/S&OP, demand and supply planning, or operations leadership.

Responsibilities

• Lead the end-to-end SIOP process, including monthly planning cycles, governance, and continuous improvement across regions.
• Integrate demand, supply, and financial plans into a single aligned, consensus view to support business decision-making.
• Partner cross-functionally with Go-To-Market, Value Stream, and Finance leaders to align strategy with operational execution.
• Lead and develop Demand and Supply Planning teams, fostering strong collaboration and high performance.
• Facilitate executive SIOP forums, delivering clear insights, risks, opportunities, and scenario-based recommendations.
• Drive performance outcomes across forecast accuracy, service, inventory, capacity, and financial targets.
• Ensure alignment between SIOP outputs and financial plans, supporting revenue, margin, and working capital objectives.

Skills

SIOP leadership

Stakeholder engagement

Scenario modelling

Analytical capability

Cross-functional collaboration

Education

Bachelor's degree in Business or related

MBA preferred

APICS CPIM/CSCP preferred

Tools

Salesforce

MS Dynamics

SAP

Oracle

PipeDrive

Power BI

QlikView

Logility

Anaplan

Kinaxis

Demand Solutions

Job description

The SIOP Manager owns the end-to-end Sales, Inventory & Operations Planning (SIOP) process for the division. The role is accountable for delivering a fully integrated, consensus-driven operating plan that aligns demand, supply, and financial objectives. This position orchestrates the monthly SIOP cycle across Demand Planning and Supply Planning, ensuring alignment between market demand, operational capabilities, and financial commitments. It drives executive decision-making through structured governance, scenario analysis, and performance transparency.

Additionally, the role acts as the central integrator across Commercial, Operations, Finance, and Supply Chain functions, working in close partnership with Regional and Value Stream Leaders and C-Suite executives, to ensure a single, aligned plan that balances service, cost, cash, and risk in support of the division’s strategic goals.

Want to know a little more about the role?

Day-to-day responsibilities include:

• Lead the end-to-end SIOP process, including monthly planning cycles, governance, and continuous improvement across regions
• Integrate demand, supply, and financial plans into a single aligned, consensus view to support business decision-making
• Partner cross-functionally with Go-To-Market, Value Stream, and Finance leaders to align strategy with operational execution
• Lead and develop Demand and Supply Planning teams, fostering strong collaboration and high performance
• Facilitate executive SIOP forums, delivering clear insights, risks, opportunities, and scenario-based recommendations
• Drive performance outcomes across forecast accuracy, service, inventory, capacity, and financial targets
• Ensure alignment between SIOP outputs and financial plans, supporting revenue, margin, and working capital objectives
• Lead risk management and scenario planning to proactively address demand, supply, and operational uncertainties

A few other things we’re looking for:

• Bachelor’s degree in Business, Supply Chain, Engineering, Finance or related field (MBA and APICS CPIM/CSCP preferred)
• 10–15 years’ experience across SIOP/S&OP, demand and supply planning, or operations leadership, ideally in complex, multi-site, multi-region environments
• Proven track record leading end-to-end SIOP processes and partnering with senior commercial, operational, and executive stakeholders
• Strong ability to align operational plans with financial outcomes, supported by advanced analytical and scenario modelling capability
• Experience in industrial, manufacturing, or mining environments preferred
• Commercially astute with strong financial acumen and the ability to balance growth ambition with operational constraints
• Highly effective influencer with strong stakeholder engagement skills across matrixed organisations
• Enterprise mindset with a structured, data-driven approach and strong governance discipline
• Advanced systems capability across ERP/MRP and planning tools, including CRM systems (Salesforce, MS Dynamics, SAP, Oracle, PipeDrive), BI tools (Power BI, QlikView), and advanced planning platforms (Logility, Anaplan, Kinaxis, Demand Solutions)

In return, you will receive:

• Opportunity to work as part of a truly global organisation, collaborating with teams across multiple regions and value streams
• Play a key role in shaping and maturing our SIOP capability during a significant period of transformation
• High visibility role with exposure to senior leadership and the opportunity to influence strategic decision-making
• Work in a collaborative, cross-functional environment that partners closely with commercial, operations, and finance teams
• Competitive remuneration package aligned to experience and impact
• Access to our Employee Assistance Program (EAP) for you and your immediate family
• Access to a broad range of employee discounts, including health insurance, travel and lifestyle.
• Career development opportunities within a global business with a strong focus on growth and continuous improvement