How we work with you
First a conversation, then discovery at a fixed price, then the build. Senior engineers own the architecture and hand everything over with documentation, so your team can run it without us.
The same four principles run through every build, whatever the integration. They are what make us a delivery unit you can put in front of your leadership.
We agree the price of discovery before it starts. It ends with the scope of the first release and an estimate for each feature, and you decide on the build once you have seen them.
The people who scope the work build it. Banking and product literacy in the room, so you are never translating settlement, scheme rules or decisioning to juniors.
We own the integration design and its outcome - accountable for it shipping and standing up in production, not just for the hours billed against it.
Every engagement ends with documentation, runbooks and a knowledge transfer. You own the code and you are never locked in to us to keep it running.
Most engagements follow the same path. Each step ends with something concrete in your hands, so you always know where the work stands.
You tell us what you are launching on the platform and when it has to go live. We ask what is already in place and what is still to build.
You get: a straight answer on whether we take it on and, if we do, a quote for discovery.
The first paid step, at a fixed price and under an EU contract. We go through the platform's APIs and what your product needs on top, such as KYC checks and local payment methods. Security and compliance requirements go into the scope from the start.
You get: the scope of the first release, a plan of iterations with an estimate for each feature, an integration plan and a prototype of the key screens.
We design the integration to fit inside your existing architecture - your core stays in place. We define the contracts, data flows and failure handling, and agree them with your team before any build.
You get: an integration design you sign off on.
Senior engineers build against your code and the platform's APIs, with regular demos and everything trackable. From design to go-live, the first release is billed at a fixed price or by the hour.
You get: working software, demoed in your environment.
We wire up the real integrations, cover the edge cases and error paths, run security and performance checks, and ship into production inside your regulatory window.
You get: a live, hardened integration.
We hand over full documentation, runbooks and a knowledge transfer so your team can run it without us. Ongoing support is available if you want it - but never required.
You get: documentation, runbooks and an independent team.
Not every engagement needs all six steps.
The way we work is built around one idea: get the integration live without pulling your core team off the roadmap or leaving you dependent on us afterwards.
We take the integration off your roadmap team's plate, so the product roadmap does not stall every time a high-value integration lands on the backlog.
Discovery ends with an estimate for each feature, so you know the fixed price or likely cost of the first release before the build starts. During the build you see progress every week.
Security, compliance and auditability are treated as product requirements from day one - the way regulated buyers measure delivery.
Senior engineers and proven integration patterns mean the work is built right the first time, not rewritten three releases later.
A documented handover and your own code. You can run it, extend it with your team, or move on - the engagement does not create a dependency on us.
A single EU-contracted entity owns the outcome end to end. No murky subcontracting chains, no finger-pointing when something needs to ship.
Not sure which fits? Tell us what you are launching, and we will tell you.
A short, fixed sprint to get one stuck client or partner integration moving and into production.
See the solutionReusable integration layerA durable integration layer your team builds on, so the next integration is configuration, not a project.
See the solutionPayment platform consolidationConsolidate fragmented payment and provider integrations behind one clean, owned interface.
See the solutionA dedicated team, billed monthly
When your team needs more engineers, we set up a dedicated team of senior engineers with a named tech lead to work alongside it on your roadmap, scaled up or down as you need. For a banking super app we assembled 25+ team members in two weeks.
How do you price an engagement?
For a build, discovery comes first, at a fixed price we quote after the first conversation. It ends with the scope of the first release and an estimate for each feature. The first release is then billed at a fixed price or by the hour, and work after it is billed by the hour. The integration unblock sprint has its own fixed price and a named end date. A dedicated team is a separate engagement: it works on your roadmap alongside your engineers and is billed monthly.
How long does a typical integration take?
It depends on the surface area, but our delivered work ranges from a payment SDK shipped in one month to a full EU banking application live in six. Discovery ends with a plan of iterations for the first release, and that plan gives the timeline.
Do we own the code?
Yes. Everything is handed over with documentation, runbooks and a knowledge transfer. You own the code, your team can run and extend it, and the engagement never creates a dependency on us. Ongoing support is available if you want it, but it is always your choice.
How do you handle our security and compliance?
As product requirements from day one, not an afterthought. We design the integration to fit inside your existing architecture and controls, write security and compliance requirements into the scope, and build auditability in - so the work stands up to the way a regulated platform is reviewed.
Can you work alongside our in-house team?
Yes. We embed with your engineers and own the integration end to end, or set up a dedicated team of senior engineers where your roadmap needs more capacity. Either way we speak your domain, so you are not translating banking and product context for us before any code gets written.
Where are you contracted?
Through a single European contracting entity, WislaCode Solutions PSA, with clear scope and clear pricing. No murky subcontracting chains, and a clean structure for your legal and procurement teams to work with.
More of the same ground - budgets, timelines, our stack and how security is handled - is covered in the Help Center.
We will ask what is signed and what your team covers, then say whether we fit and how we would start.