One integration
Individual quote
from 1 week
Two systems connected for one flow, for example CRM and accounting.
- API or connector chosen
- Data mapping and duplicates
- Alerts on failure
- Documentation
System and API integration · CRM, ERP, accounting, store
System integration for your company: CRM, ERP, accounting and the store exchange data on their own, and your team stops copying it between tabs
A new customer in the CRM appears in accounting, an order from the store reaches the ERP, and the status goes back to the customer. I connect the systems you already use through their APIs and set up a CRM when you do not have one yet.
Describe your systems
Individual quote
Free first call. I usually reply within 2 hours.
Most companies do not need new software, they need the tools they already pay for to talk to each other. I map what is retyped today, choose between a ready connector, an automation tool and a custom API integration, and build it with error alerts and documentation, so it does not depend on me.
- CRM, ERP, accounting and the store connected through their APIs
- CRM implementation: pipeline, fields and imports set up for how your team sells
- Alerts on failure, documentation and access in your name
- 12+
- years in websites, apps and marketing
- 150+
- projects: I help at every stage, from idea to growth
- 2–6 wks
- from idea to a working product
- 2 h
- usual time to my reply
- 6
- systems in use
- 4
- connections worth building
- ~40 h
- of retyping a month today
Where data is retyped today
Each line is a manual step between two systems.
| From → to | What | Time / month |
|---|---|---|
| Store → ERP | B2B orders | 16 h |
| CRM → accounting | new customers and invoices | 10 h |
| ERP → store | stock and price lists | 8 h |
| Email → CRM | enquiries | 6 h |
Connector, automation tool or API
Chosen per connection, by cost and reliability.
- Store → ERP: the ERP has an API, so a custom integration with a queue and retries.
- CRM → accounting: a ready connector exists and covers the case.
- Email → CRM: an n8n workflow with a duplicate check and an owner assigned.
Risks to close first
What makes integrations fragile.
- UrgentCustomers exist in three systems with different IDs
Integrations create duplicates, and invoices go to the wrong account.
What to do: One system is the source of truth for customers, and the others keep its ID.
- Needs workThe ERP API has a request limit
At peak times orders are lost without anyone noticing.
What to do: A queue with retries and an alert when something is still not delivered after an hour.
Handover
You can run it with me, with your team or with another developer.
- Documentation: every connection, its trigger, data and failure handling.
- Keys and accounts in your name, a walkthrough for the team.
- Optional care: monitoring and updates when an API changes.
Packages
Scope, price and timeline are agreed in writing before work starts. Tool subscriptions are paid separately.
CRM implementation
Individual quote
from 2 weeks
A CRM set up for how your team sells, connected to email, forms and accounting.
- Pipeline, fields and permissions
- Import from spreadsheets
- Integrations with forms and accounting
- Team walkthrough
Several systems
Individual quote
from 3 weeks
CRM, ERP, store and partners connected according to one map.
- Integration map
- Custom API integrations
- Queues, retries, monitoring
- Care
Selected work
Finance app (NDA)A finance subscription management app rebuilt under NDA: frontend architecture, screens designed to cut manual errors, end-to-end tests. Next.js, TypeScript, tRPC, Prisma.
Ekspres ParkingAirport parking in Warsaw: online booking, VAT invoices and online payment connected, and automated handling of bookings.What clients say
„We worked with Vlad on a Next.js project. He knew what he was doing from day one, didn't overcomplicate things and came up with better approaches on his own. I especially value his work on the site's performance. Everything was delivered as agreed.”
George B. CEO, finance company
„We needed to build an MVP fast to test our idea in practice. Vlad helped us choose sensible solutions and focus on what we really needed for launch. We didn't try to build everything at once, yet he made sure the project could grow later without starting from scratch.”
Alex N. Product Manager at StartupX
„Vlad got up to speed with our project quickly and pointed out several problems we hadn't treated as priorities. He sorted out our database and security issues. I liked that he didn't just complete tasks but clearly explained why something was worth changing and what the consequences could be.”
Michał R. CTO at TechCorp
„We had an app where every bigger change was becoming a problem. Vlad helped us clean up the code, rebuild some of the older parts and introduce automated tests. Working on new features is much easier now. I also appreciate his patience in explaining technical topics to people outside the development team.”
Sara K. Product Owner at WebSolutions
Tell me which systems you use
Two sentences are enough: the systems and what is retyped between them. I reply within 2 hours as a rule and tell you what can be connected, with price and timeline.
Frequently asked questions
What is system integration?
Connecting the tools a company already uses, such as the CRM, ERP, accounting and store, so data passes between them on its own instead of being retyped. It is done through each system's API, a ready connector or a file exchange.
Which systems can you integrate?
Anything with an API or a reliable file exchange: CRMs such as HubSpot, Pipedrive or Zoho, ERPs, accounting tools, online stores, marketplaces, payment providers and supplier APIs. I check the API documentation before quoting.
Ready connector, automation tool or custom code?
Chosen per connection. A ready connector is cheapest when it covers the case. An automation tool such as n8n suits flows with rules and exceptions. Custom API code is for large volumes, queues and strict reliability.
Do you also implement CRMs?
Yes: choosing the CRM with you, setting up the pipeline, fields and permissions, importing data from spreadsheets and connecting it to email, forms and accounting. I do not resell licences, so the choice depends only on what fits.
How much does an integration cost?
I quote individually after a short call, because the price depends on the scope and the starting point. You get the scope, timeline and a fixed price in writing before any work starts.
What happens when an API changes or a sync fails?
Failures go to an alert channel with a retry for temporary errors. With care, I update integrations when an API changes. Without it, the documentation shows another developer what to change.
Who owns the integrations?
You do. Code, keys and accounts are in your name, and every connection is documented.
Individual quoteDescribe your systems