QA Engineer - Slots, Crypto & Casino
Listed on 2026-08-30
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Software Development
Software Engineer
Location: City Of London
About us
Arena Entertainment is a digital entertainment company building online platforms and games since 2021, with brands including Meta Win, WOW Vegas, , Bet Zoo Media and Rolla. We run an AI-first engineering culture: we expect the tools to change every few months, and we hire people who are energised by that rather than tired of it.
About the roleWe build and operate casino games across Meta Win, HIT and our social casino platforms. The role covers three product lines, and you'll work across all of them:
- Slots - our own titles such as Legend of Tartarus, Candy Cash and Rise of Cetus: paytables, bonus rounds, free spins, multiplier ladders and RTP-relevant behaviour.
- Crypto originals - Plinko, Roulette, Crash and Prime Dice: on-chain settlement, token precision and provably-fair verification.
- Live casino - streamed dealer tables: real-time game state, bet windows, stream quality and third-party provider integrations.
These are real-money products. When a payout is wrong, it's wrong in someone's wallet so the bar for correctness is higher than most web QA roles, and the interesting problems live below the UI: settlement maths, wallet reconciliation, provably-fair verification, real-time socket traffic, and the network layer where the truth actually lives.
You’ll join a small games QA function in a senior seat, working alongside our existing QA lead who brings deep domain knowledge of our games, our platform and where the bodies are buried. Senior here means you set the standard: you own test strategy for the titles you take, you decide what gets automated and how, and you're the person the team believes when you say something is or isn't ready to ship.
The work is a genuine mix of manual and automated testing, and it stays that way. New builds need someone playing them properly exploratory work is how most of the interesting bugs surface, and live tables in particular have to be sat at and played. Alongside that, we run a Playwright/Type Script harness with page objects, payout specs and network-intercept probes, with AI-assisted authoring using Claude, and we're actively pushing into agent-driven testing: agents that explore a build, generate and maintain specs, triage failures and cut the regression cost of shipping several titles in parallel.
Coverage is still expanding and the AI side is still being invented. You'll have real influence over both, rather than inheriting someone else's finished framework.
The roadmap runs several titles in parallel. If you like variety, ownership, and finding the bug nobody else would have caught, this is a good fit.
What you'll doSlot testing
- Design and execute test plans for new slot releases, from first playable build through to live production.
- Verify win evaluation against the maths spec: symbol combinations, line and ways evaluation, scatter counts, wild substitution checked against the API round response, not the number the reels animate to.
- Test bonus and free‑spin features end to end: trigger and retrigger conditions, spin counts carrying over, sticky and expanding wilds, feature‑buy where offered, and what the feature pays versus what it should.
- Exercise multiplier ladders, cascading and tumble wins, progressive and jackpot contributions, and win‑cap truncation at the max‑win boundary.
- Cover bet handling in full: bet levels and coin denominations, min and max stake per currency, autoplay with loss limits and single‑win stops, turbo and quick spin, and rapid repeated spins.
- Reconcile the wallet on every round balance before and after, insufficient funds mid‑autoplay, currency and denomination switching mid‑session.
- Break the states nobody demos: refresh mid‑spin, disconnect mid‑bonus, browser back, session resume, network loss during free spins, and a round settled twice.
- Validate game history and round replay against what actually happened, including round IDs traceable to the transaction record.
- Run long or seeded sessions to sanity‑check outcome distribution against expected RTP and volatility, and flag anything that drifts.
- Check paytable text against actual behaviour, plus max‑win and promotional wording, currency formatting and locale variants.
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