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Choosing a software partner is hard. Choosing one for a fintech is harder, because the cost of a wrong choice isn't just a late release. It can be a failed audit, a payment flow that loses money, or a regulator asking who exactly had access to your customers' data.
This guide shows how to choose a fintech software development partner without getting burned. It covers what fintech needs that other software doesn't, the regulatory and security questions to ask, what a good reference from regulated finance looks like, the red flags and a few real examples. For the engineers ITDS provides to banks and fintechs, see our page on fintech software development.
| In this guide | |
| What fintech needs Regulatory questions Security checks |
References Red flags Examples FAQ |
What a fintech software development partner must handle that others don't
Fintech software moves money and holds sensitive personal data, under the eye of a regulator. That changes what you need from a partner.
- Correctness over speed. A rounding error in a payment flow is not a bug to fix next sprint. Engineers need to think about edge cases, reconciliation and failure modes by default.
- Auditability. Every change, access and deployment may need to be traced months later.
- Security as a daily habit. Access controls, secrets handling and secure coding can't be an afterthought.
- Availability. Payments and banking apps are expected to work at all hours, so someone has to run them.
- Third-party oversight. Your regulator expects you to manage the risks your suppliers bring, including your software partner.
A general software house can be excellent and still not be ready for this. The right partner has engineers who have worked under these constraints before.
| In fintech, the question is not whether a partner can build it. It is whether they can build it in a way your auditor will accept. |
Regulatory questions to ask a fintech software development partner
Your compliance team owns compliance, and the partner should never pretend otherwise. But the partner's answers show whether they can work inside your obligations.
- Where will your engineers work, and who employs them? Engineers inside the EU keep personal data under GDPR and simplify your data transfer questions.
- How do you support our ICT third-party risk management? Under the EU's Digital Operational Resilience Act (DORA), financial entities must manage the risks of their ICT providers. Ask what documentation and information the partner can provide for your register and reviews.
- Will you accept audit and access rights in the contract? Regulated firms often need the right to audit their suppliers.
- Do you use subcontractors? And if so, who, where and on what terms.
- What happens at exit? How knowledge, code and access are handed back if the relationship ends.
- Which regulated environments have your engineers worked in? Payments, cards, banking, lending, trading or insurance.
This is general information, not legal or compliance advice. Your compliance and legal teams should set the exact requirements for your firm.
Security posture checks
- Access. Engineers work only on your systems and accounts, with the least access they need, and access is removed the day they leave.
- Identity and devices. Multi-factor authentication everywhere, and clear rules on which devices can touch your code and data.
- Background checks. What checks the partner runs before an engineer joins a financial client, within what local law allows.
- Secure development. Code review, secrets management and dependency scanning as standard practice.
- Incident handling. How fast the partner tells you about a suspected incident, and who you call.
- Certifications. Security certifications help, but ask how the controls apply to the people working on your project.
What a good reference from regulated finance looks like
Any partner can find a happy client. For fintech, ask for references that match your situation, and ask them specific questions:
- Was the reference a bank, a payment institution or a fintech under similar regulation to yours?
- Did the partner's engineers pass the client's security onboarding without delays?
- How did the partner behave during an incident or an audit?
- Did engineers stay on the project long enough to build real domain knowledge?
- Would they trust the partner with production systems?
A strong reference describes how the partner behaved when it mattered, not just that "the engineers were good".
| Choosing a partner for a regulated product? Talk to us about the role, the domain and the rules you work under. Book a fintech call |
Red flags when choosing a fintech software development partner
- "We can handle compliance for you." A software partner supports your compliance; it doesn't own it.
- No finance references. Or only references from unregulated projects.
- Vague answers on data location. If they can't say where your data will be accessed from, assume the worst.
- Resistance to audit rights. A partner that won't be audited isn't ready for regulated work.
- High turnover. In finance, domain knowledge takes time to build, and constant rotation destroys it.
- Junior engineers sold as seniors. Interview the actual people who will work on your systems.
Examples from our own clients
These are ITDS clients, so read them as examples of what to look for, not as neutral references.
CreditPlus, a German bank, is building a retail banking platform from scratch, covering payments, KYC, cards and transfers. ITDS provides the nearshore team that will run it around the clock once it is live. Trust in production is the reference that matters most in banking.
Transient AI, a Wall Street start-up founded by former traders, needed one exceptional engineer. The senior engineer we placed in Warsaw built their platform, and the team has since grown to five. Seniority, not head count, made the difference.
Treezor needed a senior Golang engineer who spoke French. Recruiters in France said the profile didn't exist. We searched beyond Poland and Portugal, and three weeks later the engineer started. In fintech, the right partner finds rare combinations, not just available people.
Fintech software development partner: FAQ
Engineers who have worked in regulated finance, clear answers on where they work and how your data is protected, support for your third-party risk obligations, strong security habits and references from similar regulated clients.
DORA applies to financial entities, which must manage the risks of their ICT third-party providers. Your partner should be able to give you the information and contract terms you need. Your compliance team should confirm the exact requirements for your firm.
No. Compliance stays with your firm. A good partner supports it with the right engineers, documentation and ways of working, but should never claim to own it.
It can be, especially when engineers work inside the EU under GDPR and on your systems and access policies. Check data location, security practices and audit rights before you sign.
It depends on the domain and seniority. At ITDS, the average from starting a search to an integrated engineer is about 20 days.
Book a fintech callTell us what you are building, the rules you work under and the engineer you need. On a short call, we will tell you how we would staff it from Portugal or Poland and how we would fit into your security and compliance setup. See also our page on fintech software development. |