Systems that stop disagreeing with each other
Most operational pain is two systems holding different versions of the same fact. We design and build the APIs, webhooks and synchronisation that make one of them the answer — and make the disagreement visible when it happens.
Integration is a data problem, not a plumbing problem
Key benefits
What this changes for your business.
One version of the truth
Ownership of each fact is decided explicitly, so two systems can no longer both be right and disagree.
Failures that are visible
Retries, dead-letter queues and an alert when a message cannot be delivered — instead of an hour of data quietly missing.
Manual re-keying removed
The half hour a day somebody spends copying between two systems is the return on this work.
Reconciliation you can read
A scheduled report showing what matched and what did not, so a drift is caught in days rather than at year end.
What we deliver
The things you actually receive.
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REST API design and build
Versioned, documented and consistent, with an OpenAPI specification a partner can generate a client from.
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Webhooks and event delivery
Signed payloads, idempotency keys, retry policy and a delivery log the consumer can inspect.
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Third-party integrations
Payment providers, shipping carriers, accounting, e-invoicing, CRM, e-signature and messaging.
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ERP and CRM connectors
Two-way synchronisation with conflict rules that were decided rather than discovered.
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Authentication for APIs
OAuth 2, API keys or signed requests, with scopes so a partner gets exactly what they need.
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Data migration and one-off syncs
Mapping, cleaning and a dry run you can inspect before anything is written.
Core capabilities
The engineering disciplines this service draws on.
Technologies we use
The stack we would reach for, and what each part is for.
Laravel
A mature PHP framework for secure, maintainable server-rendered applications and APIs, with authentication, queues and testing built in.
PHP
The language behind a large share of the web, and a fast, strictly typed one since PHP 8.
Node.js
A JavaScript runtime suited to real-time features and API gateways, where many connections spend most of their time waiting.
TypeScript
Static types over JavaScript. On a codebase several people maintain, it turns a class of runtime bugs into compile-time ones.
PostgreSQL
A relational database with strong support for JSON, full-text search and geospatial data, for models that outgrow plain tables.
Redis
An in-memory store used for caching, queues and rate limiting — the difference between a page that waits on the database and one that does not.
Docker
Containers, so the application a developer runs locally and the one running in production are the same artefact.
AWS
Cloud infrastructure with managed databases, storage and networking, so capacity follows demand instead of a purchase order.
Technology adoption
Technologies in this stack are publicly documented as being used by organisations including those below.
These organisations are named as documented users of the technologies listed. They are not clients of Vertex Arc, and their inclusion does not imply any relationship with or endorsement of Vertex Arc.
Industries we serve
Sectors where this service tends to fit well.
- FinTech
- Logistics
- E-Commerce
- Healthcare
- SaaS
- Manufacturing
Our delivery process
How an engagement runs, from first conversation to ongoing support.
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Discovery
We work out what the software has to do, who uses it, and which constraints are real. The output is a written scope, not a proposal.
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Architecture
Data model, boundaries, integrations and infrastructure decided and agreed before anybody writes application code.
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Design
Flows and interface, including the empty, error and permission states that decide how the product actually feels.
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Development
Built in reviewable increments against a conventional structure, with tests around the parts that would be expensive to break.
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QA & security
Functional testing, performance checks, and a review of authentication, authorisation and dependency risk before launch.
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Launch
Deployment, monitoring, and a period of close attention while real traffic finds what staging did not.
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Continuous improvement
Patches, upgrades and new work through the support system, so the product keeps being maintained rather than quietly ageing.
Use cases
What this looks like as a finished product.
Shop to ERP synchronisation
Orders, stock and prices moving between the storefront and the back office without anybody exporting a CSV.
A partner API
Exposing part of your platform to customers or resellers, with keys, scopes, quotas and documentation.
Consolidating after an acquisition
Two companies, two CRMs, one customer list — mapped, deduplicated and kept in sync during the transition.
Why Vertex Arc
We design for the failure case
Timeouts, duplicates and partial writes are decided up front, because that is where integrations actually go wrong.
Documented for whoever comes next
An OpenAPI spec and a written data-ownership map, so the integration is not knowledge held by one person.
Monitored, not assumed
Every integration ships with health checks and alerting. Silence is not evidence that it is working.
We say when an integration is fragile
Some vendor APIs are undocumented, rate limited or unstable. You hear that before the work starts, not after.
Frequently asked questions
The system we need to connect to has no API. Now what?
How do you handle a vendor that changes their API?
Can you take over an integration somebody else built?
Have a project in mind?
Book a 30-minute call with the engineers who would do the work, or send us the details and we will come back to you.