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SystemNexa

Web platforms, custom software, automation and infrastructure for organisations that need the system to keep working after launch.

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Infrastructure

Integrations that keep every system current

Reliable connections between the tools your organisation runs on, so teams work from shared truth instead of reconciling spreadsheets.

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Approach

How we take this on

The constraint

CRMs, booking tools, payment providers and email platforms rarely agree by default. Manual exports create lag, errors and invisible process debt.

The approach

We inventory systems of record, define event and sync patterns, then implement integrations with logging, idempotency and failure handling. Humans get alerts when something needs attention, not silent drift.

SystemNexa designs integrations as infrastructure: sources of truth, failure handling and operational ownership included from day one.

Scope

What the engagement covers

  • System mapping and data ownership decisions
  • Webhook and polling sync patterns
  • CRM, payment and messaging integrations
  • Error handling, retries and dead-letter paths
  • Admin visibility into sync health
  • Documentation for operators and developers
  • Integration architecture diagram
  • Implemented connectors / workers
  • Monitoring and alert hooks
  • Operational documentation
REST APIsWebhooksNode.jsQueuesOAuthETL-lite workers

Industries

Where this capability creates value

AutomotiveReal EstateSaaSLocal Services

Process

How an engagement runs

  1. 01

    Discover

    Clarify goals, constraints, users and the systems that already exist around the work.

  2. 02

    Architect

    Shape information architecture, data models and integration boundaries before code volume grows.

  3. 03

    Build

    Implement in vertical slices with reviewable increments, not a long opaque build phase.

  4. 04

    Deploy

    Ship through controlled environments with monitoring, rollback paths and clear ownership.

Work

Related case studies

Automotive

Buchans for Towbars

Multi-service automotive website and lead systems for towbar fitting and related services.

View case study →
Real Estate

JBR Estates

Estate agency web presence focused on listings clarity, lead capture, and local discoverability.

View case study →

Outcomes

What changes

  • Less duplicate data entry
  • Faster hand-offs between teams and tools
  • Integrations you can diagnose when they fail

Integrations

Common integrations

Salesforce / HubSpotStripeXeroMail providersCustom APIs

FAQ

Questions

What if a vendor has a limited API?+

We design around constraints honestly, including batch sync, human checkpoints or recommending a better system of record when needed.

Do you build one-way or two-way sync?+

We choose based on ownership. Two-way sync is powerful and dangerous; we only use it where conflict rules are clear.

Can integrations be maintained after launch?+

Yes. Vendor APIs change. We leave monitoring, docs and a path for paid care where ongoing reliability matters.

Related

Related services

Infrastructure

Backend Development

APIs, domain services and data models that keep products reliable as they grow.

Explore →
AI & Automation

AI Automation

AI automation embedded in your systems of record, governed, monitored and built for operations.

Explore →

Blogs

Related reading

Infrastructure14 Feb 2026·5 min read

API Integrations That Hold Businesses Together

Why brittle glue between CRM, payments, and operations becomes critical infrastructure, and how to design integrations that fail loudly and recover cleanly.

Read article →

Tell us what you need built

A short brief is enough. We will reply with whether we are the right fit, and what a sensible first step looks like.

What happens next

  1. 1A reply within 1 working dayWe read your brief and tell you honestly whether we are the right fit.
  2. 2A short scoping callThirty minutes on your users, your workflow and the systems involved.
  3. 3A written estimateScope, timeline and cost in writing. No obligation, no hard sell.
Syed Hassan Raza, Founder and CEO of SystemNexaYou'll hear fromSyed Hassan Raza, Founder

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