Delivery Systems | Contract Payment & Variation Control
Delivery Systems

Contract administration shouldn't be this hard to defend.

Fragmented records, missed payment deadlines, unresolved variations and audit exposure are the result of process gaps — not bad intent. Delivery Systems fixes the process.

Built on the experience of doing the work.

Delivery Systems was founded by Juan, a senior industrial engineer and program and project management professional with a career embedded within the administrative, financial and governance frameworks of publicly funded infrastructure — where accountability for delivery outcomes, compliance and formal close-out sits with the delivery team, not external advisors.

Every framework, register and workflow used in our engagements is designed around the conditions that materially affect public-sector delivery: constrained funding arrangements, multi-agency approval pathways, fixed acquittal timeframes, and the requirements of post-delivery audit and assurance — where evidence integrity, decision traceability and demonstrable compliance are non-negotiable.

Two ways to work with Delivery Systems.

Engage us to run the administration directly, adopt the software to run it yourself, or combine both for a structured handover from consulting to self-managed operations.

Track A — Consulting

Contract Administration Services

Hands-on contract administration and PMO delivery for local government infrastructure programs in NSW and QLD. Structured around AS4000 workflows and DRFA funding requirements.

  • Payment claim assessment and certification
  • Variation management and dispute resolution records
  • Contract registers, status reporting and financial control
  • PMO delivery for multi-contract reconstruction programs
  • Audit-ready documentation for DRFA acquittal
Track B — Software

Delivery Systems PMO Platform

An ERPNext-based PMO tool built for contract payment control, variation tracking and project workflow management. Designed for infrastructure teams that need structured control without enterprise-scale complexity.

  • Payment claim and certification workflow
  • Variation register with status tracking and value control
  • Contract financial dashboard and committed cost visibility
  • Audit trail for approvals, decisions and document history
  • Configurable for AS4000 and local government requirements

Simple to start. Built to last.

Every engagement begins with understanding the specific gaps in your current process — not a generic audit or a software demo.

01

Start with a conversation

Tell us where your current payment or variation process is creating friction, risk or audit exposure.

02

Payment Process Review

A fixed-scope diagnostic of your current workflows, control gaps and documentation risks — with a clear implementation roadmap.

03

Implementation

We configure the registers, workflows and reporting structure — as consulting, software, or both depending on your needs.

04

Ongoing control

Refine and improve as the program matures. Transition to self-managed operations when ready.

Built for regional local government in NSW and QLD.

Delivery Systems works with the people responsible for delivering and administering publicly funded infrastructure programs — where accountability, audit compliance and contract control are non-negotiable.

Program Managers

Managing multi-contract reconstruction or capital works programs who need consolidated visibility over payment status, variation exposure and delivery risk.

Directors of Engineering

Responsible for delivery assurance and financial accountability across infrastructure portfolios — particularly under DRFA funding conditions.

Infrastructure Leads

Leading day-to-day contract administration on AS4000 construction contracts who need cleaner workflows, better records and defensible decisions.

Start with a Payment Process Review.

A fixed-scope review of your current payment and variation process — where control is weak, where the audit risk sits, and what a practical implementation looks like. No obligation, no generic pitch.