Finance / FinTech

We design and develop digital solutions for financial services, insurance and lending companies and FinTech startups. We build online application forms, calculators, customer portals and custom systems, combining good UX with data security and a reliable architecture. We simplify processes that should feel simple to the user — even when complex rules, integrations and business requirements are running underneath.

Our clients in finance

  • Mzuri
  • Horyzont Capital
  • KMR Restrukturyzacje
  • Jabłoński & Wspólnicy
  • Mikulewicz Ostaszewski

Looking for a project in finance? Let's talk.

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Software for finance: security, compliance and an application customers finish

In finance, it's not only about whether the system works. Data security, reliability, transparent processes and user convenience matter just as much.

We design financial apps and systems to cut out unnecessary steps, make decisions easier and guide users through the whole process — from first contact to submitting an application, making a payment or handling documents.

A financial application is a path of trust

Customers don't abandon an application because it's long, but because halfway through they stop understanding why they're giving more information and what will happen to it. Designing these paths means justifying every field: what's mandatory and why, what can be pulled from public registers instead of asking, and where to show a real person who can help finish the conversation.

In restructuring and finance-related services, the mechanics are the same, only the stakes are higher: customers come to you in a difficult situation and want a preliminary answer before they share their details. A calculator or a short qualifying form gives them that answer straight away, and filters out cases that are outside your scope.

Auditability, permissions and maintenance

In a financial product, you have to be able to reconstruct who changed what and when — in customer data, in the application status, in a settlement. We launch the event log together with the first version of the system. Separately, we define permissions: who can see customer data, who can change it and what remains in the log after that change.

The second issue is maintenance. We set up monitoring, alerts and an incident response procedure together with the rollout, and we release changes so they can be rolled back within minutes. We treat application security as part of the scope, not as a final stage.

„The biggest change was automated scheduling and budget management — our marketing started running more smoothly. They know the technologies they work with really well and can give good advice.”

Michał Słotwiński — Head of Customer Success, Semcore

Review from Clutch

The basics

How is a FinTech project different from a regular digital product?

FinTech is any software that touches money: payments, settlements, scoring, application processing, corporate finance management. The technology is the same as in other projects — what makes the difference is the cost of a mistake, because here it has financial and regulatory consequences, not just reputational ones. That's where requirements come from that are optional elsewhere but a precondition for launch in finance: a full audit trail, operations that are safe against the same request being repeated, separation of permissions and encryption of sensitive data.

The second difference is pace. The "ship fast and fix it later" approach has limited use here. Some things have to be right the first time, because a fix after the fact means correcting settlements, not updating a screen.

A project for the finance industry — Horyzont Capital

How we work

How do we run financial projects?

We start by mapping the process as it really is — with the people who carry it out, not from a description in the rulebook. This gives us a list of places where data is retyped by hand or waits for someone's decision, and that list sets the order of work. Then we draw the line: what our system does, and what stays with the institution, the payment provider or the accounting system. That line determines the scope of regulatory requirements, and it's worth drawing before the first line of code.

We build with a strong focus on testing the paths where money is involved, and on an event log from day one. The rollout is preceded by work on data that closely resembles the real thing — not on a sample.

On your side are the regulatory requirements of your business, agreements with institutions and decisions about the scope of data. On our side are architecture, development, testing and deployment.

The timeline depends on the number of integrations with external institutions — their schedules and verification processes can take longer than the build itself.

Decisions

Decisions to make before the first screen is built

What data you really store. Every field with sensitive data comes with obligations. The cheapest protection is not storing what you don't need — and that's a product decision, not a technical one.

Who is the source of truth for the balance. Your system or the institution's. Two equal sources mean discrepancies that have to be reconciled by hand, and that's the most expensive kind of operational work.

What happens when an operation fails halfway. It sounds like a technical question, but it's a business one: do we roll back or leave it to be investigated, who sees it and after how long. Without an answer, the system will decide for you — by accident.

What not to do. Don't put off the event log — adding it after the fact won't recreate the history. Don't test on production data. And don't plan a launch for a fixed date if there's a verification on the institution's side along the way.

A restructuring calculator for a law firm

Scope

Financial products built on trust

We create digital products that make it easier for customers to deal with financial services. For Horyzont Capital, we designed a simpler path for applying for financing, cutting out unnecessary steps. In other projects, we used calculators and forms that help users get from their problem to the right service faster. For Mikulewicz Ostaszewski and Jabłoński & Wspólnicy, we built restructuring calculators with automated forms that shorten the path from a financial problem to a consultation.

We can also start a new product idea with a prototype or MVP to validate the key assumptions before building the full system.

What we build

FinTech apps, calculators, online applications and customer portals

We design, among other things:

  • web and mobile apps for FinTech,
  • online forms and applications,
  • financial calculators,
  • customer portals,
  • document management systems,
  • payment and external API integrations,
  • custom systems that support financial processes.

We design every solution around a specific business process, instead of fitting the company into a ready-made template.

Conversion

How we design an application form

We split the path into short steps with visible progress, save the application as it's being filled in and explain next to each field why we're asking for it. We move the most sensitive questions to the point where the user has already invested some time, and we pull some of the data from public registers instead of asking the customer. At the end comes honest information: when the decision will be made and who will be in touch.

That's how we built the application path for Horyzont Capital — and that's also where we measured how well these mechanics work.

FAQ

Questions we hear from the financial industry

  • We build web and mobile applications, online applications, financial calculators, client portals and custom systems supporting financial processes. We tailor the product scope to the business model and user needs.
  • Yes. We design integrations with payment providers, accounting systems, CRMs, user verification services and other APIs needed in the product. Specific capabilities depend on the chosen vendors and their requirements.
  • We address security from the architecture design stage. This covers data storage, encryption, access control, audit trails and securing communication with external systems.
  • Yes. If the product is at an early stage, we can start with a prototype or MVP covering the most important business process. This allows the solution to be validated before investing in a full system.
  • We store amounts in the smallest unit as integers — pennies, not pounds with a decimal. Floating-point numbers can't precisely represent many decimal amounts, and after thousands of operations the difference shows up in a report rather than in a single transaction. The second element is the principle that a balance is the sum of ledger entries, not a separate column that gets overwritten: that way any discrepancy can be traced back to a specific operation.
  • Legal and licensing requirements should be defined by the client's legal or compliance team. We then help translate those requirements into architecture, features and system behaviour.
  • Yes, and it's often the most sensible first step. The form then acts as a separate layer: it collects data, validates it and passes it to your system via API or CRM integration. You gain a new channel without touching the core, and after a few months you have data on where people drop off — and only then decide whether to go further. One condition: the system must have some way of accepting data from outside.
  • A calculator or online form is usually a few weeks' work. A client portal with login, documents and case history — a few months. External integrations have the biggest impact on the timeline: identity verification, payments and qualified signatures all require the vendor's own approval process, which can take longer than the build itself. We prepare an estimate after a short workshop to establish the system boundary.
Let's talk

Let's build digital products for your company together

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