All-in-one fintech software development

Kick-start your fintech project with a team that feels like yours

Need a partner that already worked with fintechs or banks? Let’s talk. Fintech executives rate us ★4.8/5 because we help them build scalable and inventive products users appreciate.

fintech software fintech software development

Proven track record with the Fintech industry

Your development will become faster and improved

We know. You need to grow the team soon and can’t babysit developers. The experts waiting here offer advanced expertise in working with the cloud, microservices, and serverless. And they’re pretty cool.

Start working with them in just weeks. They already know how to build flexible cloud architecture for fintechs and how to integrate most-wanted services. So you’ll see the results in the first sprint.


projects delivered

Most took years



Most executives recommend us



Average partnership time

We use the tools Fintechs need


Cloud banking platform. An adjustable SaaS system supporting rapid innovation and outstanding customer experience. Used by Raiffeisen Bank and Tide.


Payments. An end-to-end transaction platform that integrates with SEPA and US and UK payment schemes in real time. Used by Lloyds Banking Group.


Payments. Integrates PayPal, Venmo, Apple and Google wallets plus credit and debit cards at once. Used by GitHub and Uber.


Payments. A broad suite of digital products for payments, checkout, invoicing, and billing. Used by Salesforce.


Payments. A platform that is a payment integrator, a data analyzer, and fraud protector in one. Used by McDonalds and Spotify.


Security. An authentication gateway with single sign-on build on top of a user management system. Used by Santander Technologies.

Azure AD

Security. Microsoft’s enterprise-level authenticator with a single sign-on that meets corporate cybersecurity requirements. Used by Walmart.


Security. Also a single sign-on authenticator — but focused on breach mitigation and building threat profiles. Used by AMD.


Cloud banking platform. An adjustable SaaS system supporting rapid innovation and outstanding customer experience. Used by Raiffeisen Bank and Tide.

A team that understands your field

The financial industry challenges we deal with

Your new team of developers, cloud engineers, and DevOps can deal with technology problems fintechs face on the road to millions of users. Add or remove members on the go.

The answer:

Full-stack web development

Develop apps that actually scale

Build software tough enough to last for years, but flexible enough to service millions of users. Like we did before. Our stack includes React, Node.js, and TypeScript along with our custom frameworks and AWS. It made many products competitive.

The answer:

AWS cloud set-up

Make the cloud your advantage

Be sure the cloud boosts the product instead of breaking it. Over 60+ certified AWS engineers here can help you migrate to the cloud, create a hybrid on-prem-to-cloud setup, or develop cloud-native apps.

The answer:

Payment service integration

Adopt popular services

Using pre-made components development is in our DNA. Benefit from our tested workflows that make integrations error-free. You can soon connect to payment platforms, transaction gateways, single sign-on modules, and more.

The answer:

Cloud cost optimization

Shield yourself from big bills

The cloud is a friend — if you set it up pretty well. Ask our DevOps how they cap total spending for cloud architecture from dozen of thousands to only a few. They actually do that. They will help you keep the project optimized for low cloud cost from the start.

The answer:

Law and security compliance

Experience shared responsibility

Working under strict regulations? We know and follow them. GDPR will protect your users and the product will have security-certified technology, centralized identity and authorization management

Read about the award

“They’re really becoming a part of our organization”

As said by Bart van Muijen, GoConnectIT’s CTO, who’s been with us for 3 years. Connect with the software experts he rates as ★5 collaborators.

What do technology leaders say?

Hear from our partners

fintech software fintech software development

We’ve been working with The Software House for four years. They do such an excellent job at keeping projects on the track that I can now focus on the business areas of our products.

Rafal Okniński

CTO at Brickvest

Partnership rated 5/5

fintech software fintech software development

We regard the TSH team as co-founders in our business. In 12 months alone, we grew from 6 to 49 people, while our revenues and profits grew multiple times.

Eyass Shakrah

Co-Founder of Pet Media Group

Partnership rated 5/5

Growth-oriented development

Fintech case studies

The market’s pace of change is challenging. The Board has unbending expectations. And then you have your users who can switch their platform if there are too many bumps.

You need a forward-thinking partner who knows how to develop at a scale from a national to a multi-country level. These companies needed that too — see how much they achieved.

fintech software fintech software development

The board reached a lucrative buyout thanks to an MVP we built

I want to learn more

After 5 years of our partnership, the real asset investment platform we built from scratch got acquired by a global PLC with venture capital of €48 billion.

Star 5/5 on Clutch logo

fintech software fintech software development

The CTO received a blockchain application in just 6 weeks

I want to learn more

The world’s largest partnership of 108 energy sector companies uses some of the technology we co-developed for a battery life cycle management app delivered.

Star 5/5 on Clutch logo

fintech software fintech software development

Arantio completed a tech stack update for 2M users to strengthen its market position

I want to learn more

The startup transformed its internal data platform into a SaaS payment platform for Finnish businesses with support from our Symfony, React, and iOS/Android developers.

Star 5/5 on Clutch logo

160+ delivered projects in over 24 countries


01 Build a digital product

Fintech software development services — from building an app through scaling to ongoing maintenance. We code in Node.js, React, Laravel, and Symfony.

Learn more

02 Scale up a team

Add to your ranks JavaScript experts who are top-rated in Europe. Among them — certified AWS cloud developers, DevOps, and Project Managers. 220+ talents available.

Learn more

03 Create a development plan

Tap into our 9 years of best practices tested with companies of 10-250 people. We’ll explain how to set up the architecture and secure the product’s scalability and resilience.

Learn more

04 Use cloud computing

Migrate an app, a service, or a system onto AWS. Or build the software in the cloud. Expect cuts to maintenance costs and worldwide high availability.

Learn more

“They are all super friendly and reliable

This comes from Uberchord’s CTO Eckart Burgwedel. Let’s have a private chat about your product growth plans.

From our blog

Discover how we think and work

Over 1.2M people visit our blog in a year to hear from our CTO and developers you might be working with.

Tech study: Building a high-level framework for quick development of fintech web applications

FAQ: A CTO explains cloud migration facts SMEs don't know

Architecture testing for performance - how to guarantee a highly efficient system?

Tried & tested

Our core technologies

Next.js Storybook Redux TS
ExpressJS Fastify Serverless TypeORM TS
Kubernetes Docker Azure Terraform

Meet the people who care

Looking for a partner that
will be a match?

fintech software fintech software development

It’s hard to recruit employees that your folks accept. So fin them here! We lead a culture of openness that offers you sociable product teams ready to rock the keyboard.

Here, best practices matter, initiative is welcome, and helpfulness is a standard. The result? Projects are well managed, fun, and without stress.


Very nice office, good specialist, ambitious projects

Current Contractor


One of the best software houses in Poland

Former Lead Developer


Many smart people you can learn from

Current Contractor, Engineer


Great company to be part of

Current Contractor, Engineer

Learn more about us

Tell us about your project

Transform the financial technology you have into something greater with a one-stop-shop development partner. Fintech innovation starts here.

  1. Click the button below and select your goal
  2. Say a bit about the challenge of problem you’re facing
  3. We’ll reach you in 1 day to explain what we can do together
I’d like to talk

Frequently asked questions

What type of financial institutions and fintech software companies have you worked with?

For now, we can only mention projects with:

  • A traditional bank that moved technology onto the AWS cloud with us. We used React, Serverless, and Node.js. Our design team later helped to rebrand their product’s UX/UI.
  • A fintech with a B2B lending platform we supported with business logic work and development in React and Node.js plus Python.
  • Another fintech called Energy Web (case study). They asked us to build a solar battery grid management app based on AWS, Ethereum, and Node.js.
  • And yet another one called Arantio, where the founders flipped an intranet app into a payment processing platform for companies granting employee benefits

That experience plus 10 years of know-how can work for you. 

We’re open to doing web development, business analysis, and cloud engineering work for traditional banks and fintech scale-ups. Representing a fintech software development company? Sure, let’s team up.

And if you need consulting services to failproof your strategy, guess what — your friend here can help too.

What services for the financial industry can you integrate?

We had success with connecting 8+ fintech-specific services that offer:

  • EU, US, UK, and international payments in EUR with the set-up needed to earn the SEPA certificate
  • International transfers in dozens of currencies
  • 4 different payment gates that allow fintechs to accept debit plus credit cards, PayPal-like instant payments, and Google and Apple Wallet transfers

Simply put, expect your product to get packed with features all fintechs desire. Or as Microsoft would say it — “Introduce innovative business solutions today!”

How many developers from your software development company can I have in my team?

Let’s face it. You could use a technology partner that lifts you throughout years, and that’s why we’re ready to offer you a product team of 2 to dozens of experts.

One client that stayed with us for 6 years grew the team to 20 professionals. 

You’ll also have the freedom to scale up or down depending on workload, and to delegate a project in full by adding one of our very convincing PMs to the group.

Sensible Observability Score test

Review the health of your observability ops in just 🕦 5 minutes. Do the test. Get your score. Made by veteran cloud engineers.

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    We regard the TSH team as co-founders in our business. The entire team from The Software House has invested an incredible amount of time to truly understand our business, our users and their needs.

    Eyass Shakrah

    Co-Founder of Pet Media Group


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