XISLABS

Fintech software development company

We build trading platforms, onboarding with identity checks, wallets and insurance platforms, connected to the licensed providers that regulated money movement needs. Fixed-scope projects start at $1,500.

A phone, a bank card and a laptop on a desk
Photo: Unsplash
  • 2 exchanges connected on one trading platform
  • $1,500 starting price for a fixed-scope project

What we build for fintech companies

  • Trading platforms.

    Over-the-counter trade flows with exchange connections for pricing and liquidity.

  • KYC and AML onboarding.

    Identity verification and monitoring through a licensed provider, built into sign-up.

  • Banking and settlement.

    Connections to banking providers so funds move and settle against completed trades.

  • Regulatory reporting.

    Reports generated in the format a regulator requires.

  • Wallets and payments apps.

    iOS and Android apps for transfers, bill payment, top-ups and scan-to-pay.

  • Insurance platforms.

    Customer portals for plans, claims and coverage.

A trading chart on a screen
Photo: Unsplash

Fintech projects we have shipped

  • Done OTC: an over-the-counter crypto trading platform for businesses in Canada

    A full trading platform for buying and selling crypto, built end to end. It connects to Kraken and KuCoin for pricing and liquidity, uses SumSub for KYC and AML identity checks, produces FINTRAC reporting for Canadian rules, and connects to BCB Group to move and settle funds against completed trades.

  • Turaco: an insurance platform for low-cost cover

    Turaco, an insurer in South Africa, wanted to offer low-cost cover with less manual work. We built a web application where customers register, view plans, submit claims and track their coverage.

  • A mobile banking wallet for iOS and Android

    A digital wallet app for cashless payments: adding cash and cards, money transfers, bill payment, mobile top-ups and scan-to-pay, with customer service inside the app.

How a trade runs on Done OTC

5 steps. Use the arrows to go through them.

More fintech work

Select a screen to see it larger.

The Ferrum Network platform's MultiSwap screen
Ferrum NetworkA decentralised platform for fast, low-cost transactions across blockchains.Read the case study
Sample & Co SolicitorsVerify your identityPassport or driving licenceTake a photo of your face
InMyNameKYCIdentity verification, digital signatures and payments in one client onboarding flow for law firms.Read the case study
Zero data retentionClient folder, read onlyImport templateStaff check the figures and run the import
Accounting firmA plan for six CPAs to use Claude with zero data retention. Claude reads each client's folder and fills the tax software's own import files, and staff make every tax decision.Read the case study
GenioPayA payments platform in the UK with transfers and real-time currency exchange.
Wallet appsCard payment and exchange wallet apps for iOS and Android.

For insurance agencies and lenders

Agencies and lenders lose hours to re-keying the same data into different systems and chasing documents. We scope that work from the onboarding, claims and document systems we have built.

What it costs

  • Fixed-scope fintech project

    Scope, timeline and a fixed price agreed in writing before work starts.

    From $1,500
  • Dedicated engineer

    A senior engineer who joins your team and works inside your tools. Billed monthly.

    $25 per engineer, per hour
  • Support after launch

    80 hours of support a month from the team that built it.

    $1,450 per month

The first call is free and takes 30 minutes.

How it runs

A free 30-minute call, then a written proposal with a fixed price. We agree which licensed providers handle identity, payments and banking before any code is written. Builds ship in two-week sprints with a demo at the end of each.

You describe the problem. We ask questions and say what we would build first.

  • 30 minutesOn video, at a time that suits your working day.
  • Senior engineerThe engineer on your first call stays on the code for the whole project.
  • Plain answerSometimes the answer is ‘don't build this.’ If that's true, we'll say so.
  • NDA firstNeed one? We sign it before we see anything.
  • First callFree

Scope, timeline and a fixed price, in writing, before you commit to anything.

  • ScopeThe work with the fastest payback first, as a fixed-scope first engagement.
  • TimelineTwo-week sprints, with a working demo at the end of each.
  • Fixed priceAgreed in writing. If it doesn't fit your budget, we'll tell you what fits.
  • Your teamYou meet the engineers before the project starts.

Two-week sprints with a working demo at the end of each, a written update every week, and one named lead throughout.

  • Fixed-scope projectScope, timeline and a fixed price agreed in writing before work starts. Built in two-week sprints with a working demo at the end of each.From $1,500
  • Dedicated engineersSenior engineers who join your team and work inside your tools, billed monthly.$25 per engineer, per hour

We deploy, train your team and stay close for the first weeks live.

  • DeployTested before launch and watched after.
  • TrainYour team learns to use it and run it.
  • Stay closeWe stay with you through the first weeks live.
  • Hand overThe code, the setup, the prompts and the data are yours, documented and handed over.

Improvements and support at a simple monthly rate, for as long as you want them.

  • Urgent issuesA same-day response.
  • No lock-inIf you ever want to move on, you can, with everything you need to do so.
  • Support after launch$1,450 per month, for 80 hours

Who does the work

4.9 out of 5 on Clutch

Full-time engineers and designers in our own office. No freelancers and no subcontractors. The senior engineer from your first call writes the code and stays on the project until handover. Our engineers build with Claude Code every day, and the products we deliver run on Claude, OpenAI's GPT models or Google's Gemini, chosen for the task.

Questions about fintech software

How do you handle KYC and AML?

We integrate a licensed provider and build its checks into your sign-up and monitoring. On Done OTC that provider was SumSub.

Do you build the banking and payment rails yourselves?

No. We connect to licensed banking and payment providers. On Done OTC, funds settle through BCB Group.

Can you produce regulatory reports?

Yes. Done OTC produces FINTRAC reporting for Canadian requirements. Tell us which regulator you answer to on the first call.

Which stack do you use?

Next.js and NestJS on AWS for platforms, and Flutter or React Native for mobile apps. We work in your stack if you already have one.

Building a product that moves money?

Tell us what it has to do and which rules it has to meet on a 30-minute call. You leave with a plan and a cost, in writing.

Book a discovery call