Casino platforms built to survive a regulator's attention.
We build the systems behind licensed online casinos — player account management, wallets, bonus engines, back office and the integration layer that holds your suppliers together. Engineered for operators and suppliers in regulated markets, where the ledger has to balance and every control has to be evidenced.
Three engagements, and we are equally happy taking any one of them.
Most casino projects arrive as one of these. You rarely need all three at once, and an agency that insists you do is selling scope rather than solving a problem.
Casino platform builds
The operator system itself — player accounts, wallet and ledger, bonus and free-spin engine, back office, reporting. The part that has to be right because everything else depends on it settling correctly.
Player-facing casino sites
The brand your players actually see, built on top of a platform you already licence. Lobby, registration and KYC funnel, cashier, retention surfaces and the affiliate landers that feed them.
Aggregation & integrations
Connecting game aggregators, payment rails, identity and AML vendors, CRM and affiliate tracking into a stack that already exists — without a rebuild you did not ask for.
The wallet is the product. Everything else is presentation.
A casino platform is a ledger with a lobby attached. Players deposit, stake, win, claim bonuses and withdraw, often across several currencies and payment methods, and every one of those movements has to reconcile — under load, during a provider outage, and eighteen months later when somebody asks you to prove it.
That is the part we treat as non-negotiable. Wallet operations are transactional and idempotent, so a retried callback from a game provider cannot double-credit a win. Bonus balances are tracked separately from cash with their own wagering state, because merging them is the shortcut that produces withdrawals you cannot explain. Every movement writes an immutable audit record.
- Player account management — registration, verification state, segmentation, account lifecycle
- Single wallet across products and currencies, with idempotent transaction handling
- Bonus engine — deposit matches, free spins, wagering requirements, contribution rules, expiry
- Back office for operations: player search, manual adjustments, payout review, fraud queues
- Reporting built for finance and for the regulator, not just for the dashboard
Where licensed operators actually lose money: the registration funnel.
If you already licence a platform, your competitive surface is the front end. And in regulated markets the single most expensive screen you own is the one between "interested" and "verified" — because compliance has added steps that marketing did not budget for, and nobody has re-designed the flow since.
Identity checks, source-of-funds prompts and affordability questions are not optional, so the work is not removing them. It is sequencing them so a player is never asked for something before there is a reason, staging verification against the deposit thresholds that trigger it, and making a failed or pending check a state the player can recover from rather than a dead end.
- Lobby and game discovery that stays fast with thousands of titles in the feed
- Registration and KYC funnels staged against verification thresholds, not front-loaded
- Cashier flows across cards, open banking, e-wallets and local rails
- Retention surfaces — missions, tournaments, personalised offers — driven off platform data
- Affiliate landing pages that stay compliant with the advertising rules of each market
Suppliers change. Your platform should not care.
Over a few years you will change payment providers, add and drop game studios, switch identity vendors after a pricing round, and inherit a CRM somebody else chose. The operators who suffer through that are the ones whose integrations were written directly against each supplier's API, scattered across the codebase.
We build to an internal contract instead — one interface per capability, with suppliers behind adapters. Swapping a PSP becomes a new adapter and a config change rather than a project. It costs slightly more the first time and repays it the first time you switch.
- Game aggregator and direct studio integrations, with seamless-wallet callback handling
- PSP and payment orchestration — routing, retries, reconciliation, chargeback handling
- Identity, KYC, PEP and sanctions screening vendors behind a single verification interface
- CRM, BI and affiliate platforms fed from one event stream rather than five exports
- Sportsbook and live casino feeds where the operator runs them alongside
Controls that are enforced, not displayed.
The recurring failure in this industry is not a missing feature. It is a control that exists in the interface and not in the system — a deposit limit the front end respects but the API does not, a self-exclusion that holds on one brand and not the sibling brand on the same platform. Those are the ones that turn into enforcement action, because the operator genuinely believed the control was working.
So we build the control at the layer that cannot be bypassed. Limits are evaluated server-side on the transaction, not in the cashier component. Exclusions are checked at authentication and at every deposit attempt, across every brand sharing the platform. If a control cannot be evidenced from the audit log, we treat it as not implemented.
- Deposit, loss and session limits enforced in the transaction path
- Self-exclusion and cooling-off honoured across every brand on the platform
- Reality checks, session clocks and net-position visibility for the player
- Age and identity verification gated against the thresholds each licence sets
- Jurisdiction gating so a market you are not licensed for cannot be served
- Immutable audit trails and data retention built for the evidence request, not the dashboard
We are engineers, not compliance consultants. We build to the technical controls your licence conditions and your compliance advisers specify, and we will tell you plainly when something you have asked for does not match what we understand the requirement to be — but the regulatory advice stays with the people qualified to give it.
A dedicated iGaming engineering team, not a web agency improvising.
Casino systems punish generalists. The failure modes are specific — provider callbacks that arrive twice or out of order, bonus wagering that quietly diverges from cash, reconciliation breaks that surface days later in finance rather than immediately in monitoring. You learn those by shipping them, and by being on call when they break.
The engineers delivering this work have spent years in the vertical building platform and integration systems for operators and suppliers. Synmek runs the engagement: scoping, architecture, code standards, review and delivery accountability sit with us, on the same contract and the same commercial terms as every other project we run. You deal with one team and one point of responsibility.
It also means the commercial position is honest. This is a specialist capability, priced as one — not a general web team charging a premium for a vertical they read about last month.
Compliance scope first, then architecture, then speed.
The order matters. Licence conditions constrain the data model, and finding that out in month four is how casino projects get rewritten.
Scope & markets
Which licences, which jurisdictions, which products. This determines most of what follows.
Control mapping
Your compliance requirements translated into technical controls, each with an owner and an evidence trail.
Architecture
Wallet and ledger design, bonus state, supplier contracts, multi-brand model. The expensive-to-reverse decisions.
Build
Sprint delivery against a staging environment with real provider sandboxes wired in from the start.
Certification support
Test evidence, control documentation and the engineering answers your auditors and testing houses ask for.
Launch & operate
Monitoring on the ledger, reconciliation alerting, incident runbooks and continuing engineering.
Where we help, and where we do not.
This is an expensive, slow-to-reverse category with a regulator attached, so it is worth being blunt about fit before either of us spends time.
You are probably a good fit if:
- You hold, or are in the process of obtaining, a licence in a regulated market — UKGC, MGA, Curacao GCB or equivalent.
- You are an operator who needs a platform built, or a front end built on a platform you already licence.
- You are a supplier, aggregator or platform provider needing engineering capacity in the vertical.
- You want to own the code and the infrastructure, with no dependency on us to keep operating.
We are the wrong choice if:
- You want game content produced. Slot maths models, RNG design and RGS-certified game production are a separate discipline with their own certification path. We integrate games; we do not make them, and we will point you at studios that do.
- You are targeting unlicensed or grey markets. We work with licensed operators and suppliers only. This is a firm position, not an opening one.
- You need the licence itself solved. We build systems to the conditions your licence sets. Obtaining and holding it is your compliance function's job, with proper legal advice.
- You want a casino live in six weeks for a fixed low price. Something gets sacrificed, and in this category it is always the ledger or the controls — the two things you cannot afford to get wrong.
If you are early and still deciding between building a platform and licensing one, say so. We will give you an honest read, including the cases where licensing an existing platform is obviously the better commercial decision and there is no build for us in it.