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Solution

Software Modernisation & Re-engineering. Legacy, made AI-ready.

We rebuild old, hard-to-change software into modern systems that are easy to update and ready for AI. Aging software is usually what's holding your AI plans back — this clears the way.

SoftwareAI & Innovation

The challenge

You already know the old system needs modernising — but it's grown so large and tangled that the job feels overwhelming, so the hard decision keeps getting put off.

Waiting only makes it heavier. Just keeping ageing systems running already eats a large share of the IT budget, and nearly 6 in 10 Australian businesses say theirs are now too rigid and costly to build on (IDC/MongoDB, 2025). Every year you delay, the cost, risk, and effort of the eventual fix only grow.

Our approach

We start with a fixed-price assessment that maps your estate and scores its AI-readiness, then re-engineer monoliths into cloud-native, modular, agent-ready architectures — using AI-assisted modernisation to move faster and cost less than the global majors. The end-state isn't just modern; it's ready for the agents and data products you'll build next.

How we modernise

1

Assess

A fixed-price review of your systems and a score for how AI-ready they are.

2

Re-engineer

We rebuild the old into modern, easy-to-update parts — AI does the heavy lifting.

3

Ready to build on

A clean base you can safely add AI and new features to.

What's Included

What's included

01

Modernisation Assessment

AI-assisted code and architecture archaeology, dependency mapping, an AI-readiness scorecard, a 6R disposition, and an ROI-quantified roadmap.

02

Replatform / Re-architect

Monolith decomposition, containerisation, API enablement, data-layer modernisation, automated test harnesses, and CI/CD.

03

Agent-Ready Remediation

Clean APIs and MCP endpoints, retrieval-ready data, guardrails, and observability so your systems are consumable by agents.

04

Build & Migrate

AI-accelerated code re-engineering and migration, incremental delivery, and a safe, staged cutover with rollback.

How to Engage

Engagement options

01

Modernisation Assessment

Fixed-price, 2–6 weeks. The scorecard and prioritised roadmap.

02

Replatform / Re-architect

Project or pod, milestone-priced.

03

Agent-Ready Remediation

Outcome- or risk-shared once the assessment de-risks scope.

Why BISTEC

No other partner combines all of these capabilities under one roof.

Senior architects, AI-fluent delivery

Major-firm architecture at mid-market price.

AI-ready as the goal

We modernise for what you'll build next — not modernisation for its own sake.

Cross-pillar pull-through

Modernisation flows straight into platform engineering, data, and agentic workflows.

Sydney & Colombo economics

We undercut the global majors' day rates while matching the architecture.

FAQ

Frequently asked questions

Where do we start?

With the assessment — it's low-cost, low-risk, and produces a costed roadmap you own regardless of who delivers it.

Lift-and-shift or re-architect?

Whatever the business case supports — the 6R disposition makes the trade-offs explicit.

Do you handle mainframe / AS400 / legacy .NET?

Yes — these are exactly the estates blocking AI plans, and where the value is highest.

How do you de-risk fixed-price work?

A paid assessment before any fixed bid, plus milestone gating.

Make your legacy AI-ready.

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