Hire FinTech Developers Who Understand
Money and Code.

1. Decide whether you need domain knowledge or just good engineers

This is the question that determines everything after it, and it is worth answering honestly rather than defaulting to "both, obviously".

A payments integration, a KYC flow, or anything touching a ledger needs someone who has done it before. The knowledge that matters is not the API documentation — it is knowing that a payment can succeed at the provider and fail at your end, that a reconciliation file arrives late on bank holidays, and that "idempotent" is a requirement rather than a nice-to-have. That is learned by having been burned, not by reading.

A dashboard, an internal tool, or a customer portal that happens to sit in a financial company mostly needs good engineers. Insisting on FinTech experience for that work narrows your pool and raises your cost for no benefit.

2. Interview for the failure cases, not the happy path

Most technical interviews establish that someone can build the thing when everything works. In financial software the value is almost entirely in what happens when it does not.

Questions that separate people quickly:

• A payment succeeds at the gateway and your service crashes before writing the record. What does the customer see, and what does your reconciliation look like the next morning?
• How do you make a transfer endpoint safe to retry? If the answer does not involve an idempotency key minted by the caller, keep going.
• Where do you store a card number, and what is the answer if the business asks you to store it anyway?
• You find a rounding discrepancy of a few paise across thousands of transactions. Is that a bug?
• What is the difference between a ledger entry and a database row that happens to hold an amount?

3. Know which compliance matters to you specifically

Compliance is where job descriptions go vague — "PCI DSS, GDPR, PSD2, RBI, AML" listed together as though they were one skill. They are different obligations with different triggers, and most products are subject to a few rather than all.

Work out which ones actually bind you before you interview for them. If you never touch card data because a provider handles it, PCI DSS scope is far smaller than the acronym suggests, and hiring for deep PCI experience is spending on a problem you have designed away. If you move money in India, RBI guidance and data-localisation rules matter more than anything European.

Then interview for the ones that bind. A candidate who can explain why your particular integration keeps you out of scope understands compliance better than one who recites all five.

4. Choose the engagement model before you choose the person

The shape of the arrangement determines who is available to you, and getting it the wrong way round is how hiring stalls for a quarter.

• A dedicated developer, monthly, suits a roadmap longer than your current team can absorb. You direct the work; continuity and cover are somebody else's problem.
• A fixed-cost project suits work that is genuinely well understood. Financial integrations often are not, and a fixed price on a vague scope gets paid for in change requests.
• Team augmentation suits a deadline or a regulatory sprint — extra hands inside your process, scaled back afterwards.
• A direct hire suits a permanent core capability. It is also the slowest route and the most expensive mistake if the person is wrong.

5. Insist on a paid trial rather than a longer interview

Interviews measure interviewing. A week of real work in your codebase measures the thing you are buying, and in financial software the gap between the two is wider than usual — the engineers who are careful about money are often not the ones who are quickest at whiteboard puzzles.

Make it paid. A free trial pressures everybody to perform rather than work normally, which is the opposite of what you want to observe.

What this usually costs, and what moves it

Rates for FinTech engineers sit above general backend work, for the straightforward reason that the supply of people who have shipped a payment system is smaller than the supply of people who have shipped an API.

What moves the number, in rough order: seniority, how long the engagement runs, how much domain depth the work genuinely needs, and your timezone requirement. A six-month engagement costs less per hour than a six-week one; insisting on full overlap with US Pacific costs more than a European or Indian morning.

We quote against the actual requirement rather than publishing a band, because a band is wrong for most of the people reading it. Ask on a call and you will have a number the same day.