Xendex Integrated Technologies
Engineering Capabilities

Services & Architecture, built for institutions that can't afford downtime.

Four disciplines, one senior pod. We design and ship custom software, web platforms, mobile applications, and cloud infrastructure — engineered to the same auditable standard, under one roof, from Kigali.

ENGAGEMENT TOPOLOGYACTIVE V1
DISCIPLINES04 Active
POD MODELSenior-Only
DELIVERY4-Step Model
HANDOVERZero Lock-In
01 · ARCHITECTURE COREHIGH-THROUGHPUT

Custom Software & Core Systems Integration

From replacing monolithic enterprise stacks to building ultra-fast financial messaging brokers, we engineer distributed microservices in Go, Python (FastAPI), and Rust — wired into the legacy systems you already depend on.

Legacy core banking & ERP system wrapping
Event-driven architectures with Kafka / RabbitMQ
REST & gRPC API design and versioning
Kubernetes-native deployment pipelines
Typical Engagement

3–9 month build with a lead architect + 2–4 senior engineers, on fixed-price milestones or a squad retainer.

Example Deliverables

Architecture decision records, migration runbooks, load-tested services, full CI/CD, and >85% test coverage.

GoPython / FastAPIRustKafkaPostgres HAKubernetes
PROTOCOL TOPOLOGYACTIVE V3.2
INGRESSKong Mesh
QUEUEKafka Cluster
STORAGEPostgres/HA
portal.client.rw
02 · WEB PLATFORMS

Scalable Web SaaS & Sovereign Portals

High-performance web applications built on Next.js, React, and TypeScript — optimized for high interactivity, instant page transitions, and responsive data analytics dashboards.

Server-side rendering & edge routing
Multi-tenant executive dashboards
Role-based institutional access control
Real-time analytics & reporting pipelines
Typical Engagement

6–14 weeks for a marketing site, portal, or SaaS MVP; ongoing retainer available for iteration and feature growth.

Example Deliverables

Production-ready codebase, design system, CMS integration where needed, and Core Web Vitals-tuned performance.

Next.jsReactTypeScriptTailwindCSSGraphQL
03 · MOBILE CORE

Field-Ready Mobile Applications

Industrial cross-platform apps built with Flutter and React Native — engineered specifically for resilience in degraded network environments, offline SQLite sync, and biometric authorization.

Zero-Network Mode EnabledLocal cache queues, delta conflict resolution, back-sync
Biometric & passkey authorization
Bluetooth beaconing for field devices
One codebase, iOS + Android parity
Encrypted local storage at rest
Typical Engagement

8–16 weeks per platform, phased iOS/Android release, run in parallel with backend API development.

Example Deliverables

App-store-ready builds, offline sync architecture docs, and device-lab tested field performance benchmarks.

FlutterReact NativeSQLiteBiometric PasskeysBLE
CLOUD TOPOLOGYMulti-Region AWS
AUDIT COMPLIANCEZero-Trust Vault
04 · CLOUD & GOVERNANCE

Enterprise IT Advisory & Cloud Migration

Strategic technical vendor due diligence for institutional grantmakers, AWS/GCP cloud cost engineering, and ISO/IEC 27001 vulnerability assessments for institutional hardening.

Vendor & codebase technical due diligence
Cloud cost engineering & rightsizing
ISO/IEC 27001-aligned security audits
Legacy infrastructure modernization roadmaps
Typical Engagement

2–4 week audit sprint producing a scored findings report and remediation roadmap; optional ongoing advisory retainer.

Example Deliverables

Findings report, prioritized remediation backlog, and a cloud cost/architecture roadmap your team can execute against.

AWSGCPTerraformISO/IEC 27001Zero-Trust
Operational Methodology

Our Delivery Architecture: The 4-Step Velocity Model.

Predictable milestones, transparent burn rates, and zero ambiguity — from technical discovery to institutional launch.

01 / DISCOVERY

48-Hour Technical Blueprint

We decompose your project specifications, API schemas, and security requirements into a formal architectural blueprint and fixed-price sprint roadmap.

You leave discovery with a scoped statement of work, not a vague proposal — line-itemed milestones, named engineers, and a delivery date.

FAST RESPONSE
02 / SPRINT ZERO

Clickable Prototype & Schemas

High-fidelity user workflows in Figma, database schema migrations, and core API contracts are approved before a single line of production code ships.

This is the checkpoint where scope disagreements get resolved cheaply — before they become expensive mid-build change orders.

NO SURPRISES
03 / VELOCITY PODS

Bi-Weekly Demos & CI/CD

Continuous delivery to isolated staging environments. Review live working code every two weeks with direct pod-engineer access via Slack.

No black-box agency handoffs — you talk to the engineer who wrote the code, on the same call where you see it run.

AGILE TRANSPARENCY
04 / GO-LIVE & SLA

Deployment & Local Training

Zero-downtime production deployment, full documentation handover, on-the-ground staff training in Kigali, and guaranteed SLA tiers.

You own the repositories, the infrastructure-as-code, and the deployment pipeline from day one — no proprietary lock-in.

99.9% UPTIME SLA

Ready to scope your architecture?

Tell us what you're building. We'll respond within four business hours with next steps — no sales gatekeepers.