CLASSIFICATION POSTURE · PROTECTED
DEFENCE · MISSION SOFTWARE ENGINEERING
Custom software for the operators who carry the mission.
RankSaga writes the applications, integration layers, and decision-support tools that operators actually use, and we ship them inside the production environment from week one. Cloud, on-premise, or air-gapped. We embed with the team that owns the work, and we stay deployed.
The interface is the product. The data is the product. The latency, the failure mode, the audit trail, the offline behaviour, these are the product. Mission software is judged in the environment it lives in, not in a slide.
PRACTICE OVERVIEW
An engineering team, deployed where the work happens.
RankSaga's mission software practice is small, senior, and forward-deployed by design. We are not a body-shop. The customers we work with, defence platform groups, prime contractors, and the agencies they serve, do not need more bodies. They need engineers who can sit alongside the team that owns the mission, write working software against the constraints of a real production environment, and remain on hand to operate what was built.
Mission software fails in predictable ways. It fails because the team that built it never had to live inside the deployment environment, the classification controls, the offline update path, the identity and audit obligations, the latency budget that an operator actually has at the moment of decision. It fails because the software was demonstrated against synthetic data and never tested under operational tempo. It fails because once delivery was 'complete', the team that knew the system walked away.
We address all three. We build inside the target environment. We integrate with real systems of record from the first sprint. We ship working software fast, and we stay deployed alongside the operators for as long as the customer requires. The capability we deliver is not a binary, it is the engineering team that understands the system and is on hand to keep it aligned with the mission as the mission changes.
Our engineers are full-stack and full-environment. We write the backend services, the inference paths, the operator-facing applications, and the integration layers; we wire them into the customer's identity, logging, and policy infrastructure; we harden them against the threat model the customer is actually facing; and we operate them in production. One team, one ownership boundary, one phone number when something needs attention.
WHAT WE BUILD
The shape of mission software, in our hands.
01 / Capability
Operator-Facing Applications
The interfaces that operators use to make decisions. Briefing tools, agent consoles, dashboards, mission-planning surfaces, and after-action review systems, designed for the density, latency, and failure modes of operational use.
02 / Capability
Decision-Support Backends
The retrieval, scoring, summarisation, and recommendation services that sit behind operator-facing tools. Built on AI where AI improves the answer; built on deterministic logic where determinism is the requirement.
03 / Capability
Integration & Data Layers
Connections to systems of record, message buses, document repositories, mission-data sources, and identity providers. Built for residency, classification handling, and the operational constraints of the environment.
04 / Capability
Inference & Model Serving
Production inference paths for foundation models, fine-tuned models, and customer-provided models. Auto-scaling where appropriate, hardened single-tenant serving where required, and offline-capable inference inside air-gapped enclaves.
05 / Capability
Mission Data Engineering
Pipelines for ingesting, labelling, indexing, and curating the data that mission systems run on. Vector indices, knowledge graphs, hybrid retrieval, and the metadata that makes it auditable.
06 / Capability
Tooling & Platform Work
The CI/CD, observability, secret management, deployment automation, and developer tooling that lets a small team ship safely into a sensitive environment. Often the unglamorous, decisive 30% of an engagement.
OPERATING MODEL
Embedded from week one. Deployed for the duration.
We do not deliver and walk away. The engagement model is consistent across mission software work: a small forward-deployed team that integrates with the customer, ships into production environments fast, and remains on hand to harden, observe, and iterate.
01 / Step
Discovery, Inside the Environment
We sit alongside the team that owns the workflow, the data, and the operational risk. We map systems of record, classification posture, identity and logging obligations, latency budget, and the people who actually use the system today. The output is a build plan written against real constraints.
02 / Step
Build in the Production Target
We do not build in a generic sandbox and migrate at the end. We provision into the customer's environment in week one, sovereign cloud, on-premise, or air-gapped enclave, and ship working software against the production constraints from the first sprint.
03 / Step
Harden, Operate, Iterate
Once operators are using the system, we stay deployed. We patch under load, run incident response, ingest field feedback, and harden the system against the threats it actually sees. The engineers who built it remain accountable for keeping it running.
WHAT YOU GET
Concrete artefacts, not slideware.
01 / Deliverable
Working Software in the Customer Environment
An application running in the production target, cloud, on-premise, or air-gapped, used by operators against real data. The software is the deliverable, not a report about it.
02 / Deliverable
Documented Architecture & Threat Model
Architecture diagrams, threat model, classification posture, identity and logging integration, and operational runbooks, written by the engineers who built the system and reviewed by the people who must operate it.
03 / Deliverable
Source Code Ownership
The customer owns the source. We deliver under terms that put the code, the build pipeline, and the deployment automation in customer hands. No vendor lock-in by lawsuit.
04 / Deliverable
Embedded Operations
Engineers on hand to operate, patch, and iterate. Engagement length is set by the customer, not by us. We have engagements that have run for years and engagements that handed off cleanly in months.
REFERENCE
Live for the Australian Armed Forces.
An AI application built by RankSaga is currently deployed inside an air-gapped Australian Armed Forces environment, on Microsoft Azure sovereign infrastructure. We are the engineering team that built it, and we are the team that operates it.
- ·Forward-deployed engineers integrated with the customer's platform group.
- ·Production deployment from week one, inside the target environment.
- ·PROTECTED-classification posture across identity, logging, and key management.
- ·Ongoing operations and iteration as the mission evolves.
RELATED CAPABILITIES
Where mission software meets the rest of the practice.
Adjacent
Defence-Grade AI Systems →
When the application surface includes AI components, retrieval, summarisation, decision support, engineered for auditability and human review.
Adjacent
Air-Gapped Deployment →
When the production environment has no internet path. Offline model lifecycle, hardened supply chains, and observability without telemetry leaks.
Adjacent
Microsoft Azure (Sovereign) →
When the deployment target is Azure Australia or another sovereign Azure region with IRAP-aligned controls.
QUESTIONS
Practical questions we get on first calls.
Do you only build new software, or do you work on existing systems?+
Both. Greenfield mission software is one common engagement; another is forward-deployed engineering inside an existing platform, adding capability, hardening modules, modernising integration layers, or rescuing in-flight work that has stalled. We are equally comfortable in either position.
What technical stack do you typically use?+
Stack choice follows the constraints of the environment, not vendor preference. We are pragmatic about languages and frameworks. In recent defence work we have shipped TypeScript / Node and Python services on Azure, with React-based operator interfaces and inference services running on hardened single-tenant infrastructure. We adopt the customer's stack where one exists.
Will you work to our security review process?+
Yes. We expect to operate inside a customer security and accreditation process. In Australian environments that typically means IRAP-aligned controls, ASD Essential Eight uplift, and customer-defined classification handling. We design for that posture from day one rather than retrofitting at the end.
Can the engagement be fixed-price?+
Discovery is fixed-price. Build engagements are usually time-and-materials with a defined scope and a hard budget cap, because production constraints in defence environments routinely surface late and we would rather be honest about that than commit to a number we cannot hold.
ENGAGE
If you have a mission software problem, bring us in early.
We are most useful before the architecture is locked, before the contract structure forces decisions that the environment will not accept, and before the team has spent six months building outside the environment they will eventually have to ship into.
ENGAGE
Bring us in on the problem before it has a name.
We work best when we are embedded early, alongside the team that owns the mission, the data, and the operational risk. Government, commercial enterprise, or defence: if your environment is regulated, sensitive, or air-gapped, that is where we are most useful.