Seattle Dev

Enterprise System Integration Services

Break down data silos with system integration that keeps CRM, ERP, finance, and custom apps in sync.
Team reviewing a connected-systems diagram on a large display in a bright office

Most enterprises already have the tools. They do not talk.

How we start

Connect, write a plan, then stay in the work

You are not hiring a vendor who vanishes after a kickoff. You get us as an embedded partner who learns the business, then ships against the plan.

01

Connect

Thirty minutes. We learn how the business actually runs: who buys, what is broken, what a good month looks like after launch.

02

Write a plan

What to build, what to skip, an honest range, and whether we are the right fit. You leave with a path, not a pitch deck.

03

Embed

You work with the people who ship it. We stay in the work after launch so the site does not rot the week after deploy.

Integration That Survives Production

Connect disparate systems, automate data flow, and give ops a stack that behaves like one system.

Legacy System Integration

Connect legacy systems to modern apps while preserving data and business logic you still need.

Real-Time Data Synchronization

Keep your systems in sync automatically. I implement real-time data integration that ensures information is consistent across all your platforms.

Enterprise-Grade Security

Protect your data with security built for enterprise requirements. I implement encryption, authentication, audit logging, and compliance controls that meet your industry's requirements.

Cloud & On-Premise Integration

Bridge cloud and on-premise systems cleanly. I create hybrid integration solutions that connect your cloud applications with on-premise databases and applications.

API Development & Management

Build robust APIs for system integration. I develop RESTful and GraphQL APIs with proper versioning, documentation, rate limiting, and monitoring for production reliability.

Integration Monitoring & Support

Ensure integrations run smoothly 24/7. I provide monitoring, alerting, and ongoing support to quickly identify and resolve any integration issues before they hit operations.

Enterprise integration process
Inventory, contract, bridge, operate.

Enterprise integration without the theater

"Enterprise integration" gets sold as a multi-year program with a room full of architects. Most mid-size companies need something sharper: the systems that run revenue and operations talking to each other reliably, with clear ownership when something fails at 4 PM on a Thursday.

I plan and build those integrations: APIs, middleware, data sync, and the operational glue between CRM, ERP, finance, support, and custom apps. Seattle-based, senior, hands-on. Twenty-seven years shipping production software, not slideware.

Who this is for

Companies with several systems of record that disagree about customers, orders, or inventory. Moving between systems without losing history is covered in data migration strategies for switching systems.

Teams past the point where point-to-point Zapier links can be reasoned about or trusted. When the pain is pure re-entry, the pattern is the same as eliminating duplicate data entry with API integration.

Operators launching a portal or automation layer that needs trustworthy data underneath.

Leaders who want monitoring and runbooks, not "ask Dave, he knows the FTP."

Who this is not for

A single SaaS-to-SaaS toggle that already works. Do not hire me to feel enterprise.

Rip-and-replace ERP programs where the vendor's SI army is the real engagement. I can advise on edges; I am not a 50-person cutover firm.

Buyers who will not fund error handling, retries, and observability. Happy-path-only integrations fail in production, usually during your busiest week.

What the work looks like

Map before build. Inventory systems, auth methods, data ownership, and the handoffs that hurt. If nobody can name the system of record for "customer," I fix that in writing before code.

Choose patterns deliberately. REST/GraphQL, webhooks, queues, batch files, or database read paths. Least complex option that meets latency and reliability needs. Details live under API development. When integrations feed leadership screens, see integrating your dashboard with business tools.

Normalize and protect. Transformation, validation, idempotency, credential hygiene. No API keys in spreadsheets.

Operate. Logging, alerts, and docs so your team is not trapped when I am on vacation.

Deep platform examples: HubSpot, Twilio, payments, commerce. Process automation that sits on top of clean integrations: workflow automation.

Cost and timeline

Integration cost tracks system count and messiness more than buzzwords. Focused two- or three-system work often sits in the lower-to-mid five figures over a few weeks. Broader programs phase like other custom software in the $30K–$150K band with 30/40/30 milestones when scoped as a full project. Fixed-price once scope is real; uncertainty gets a paid discovery phase, not a guess dressed as a bid.

Hosting and ops for integration middleware usually folds into your existing cloud bill or a managed hosting setup. Ongoing support from about $750/month if you want someone accountable when a vendor changes their API without warning.

Next step

Schedule a consultation. Bring the systems list and the weekly fire. I will say what to connect first, what to leave alone, and what it should cost to make the first path boringly reliable.

Talk to an expert

Connect legacy and cloud without a big-bang rewrite

Free 30-minute call. Bring the two systems that fail weekly. I will map middleware vs a connector.

We take on a small number of new builds at a time so every project gets focused attention.

Prefer a range first? Run the 2-minute cost estimator .

FAQs

What counts as enterprise integration in your practice?

Connecting the systems your business already runs (CRM, ERP, billing, warehouses, partner feeds) with clear ownership, retries, monitoring, and a system of record for each object. Not a multi-year program with no end date.

How much does enterprise integration work cost?

Focused two- or three-system integrations often land in the mid five figures. Larger multi-system maps sit inside broader $50,000–$150,000 platform work. I price from a discovery inventory of auth, ownership, and failure modes first.

How long do integrations take?

A focused two-system connection often ships in 2–6 weeks. Multi-system platforms and partner APIs take longer; we phase so core sync goes live early. Real sandboxes beat mocks for honesty.

Can you work with legacy systems that have no modern API?

Often yes: secure file drops, database reads on a replica when you control the database, or thin wrappers around proprietary apps. I will say what is feasible after a short look at docs or a sandbox, not promise everything.

Talk to an expert

Connect legacy and cloud without a big-bang rewrite

Free 30-minute call. Bring the two systems that fail weekly. I will map middleware vs a connector.

We take on a small number of new builds at a time so every project gets focused attention.

Prefer a range first? Run the 2-minute cost estimator .

Seattle.dev Footer Background
Seattle Dev

Custom web development and design for Seattle businesses. We specialize in API integration, custom web portals, and business automation.