
11 - 50 employees
Founded 2016
🎮 Gaming
👥 B2C
Gaming • B2C
Blitzoo is a developer and publisher of social casino slot games for desktop and mobile. The company offers Vegas-style slot titles (for example Lobstermania and Show Me Vegas Slots) that emphasize fun gameplay, unique features, big payouts, and social play, with optional in-app purchases and support for responsible gaming.
🔥 2 minutes ago
Improve your chances of getting an interview by checking your resume score before you apply.

11 - 50 employees
Founded 2016
🎮 Gaming
👥 B2C
Gaming • B2C
Blitzoo is a developer and publisher of social casino slot games for desktop and mobile. The company offers Vegas-style slot titles (for example Lobstermania and Show Me Vegas Slots) that emphasize fun gameplay, unique features, big payouts, and social play, with optional in-app purchases and support for responsible gaming.
• Hold end-to-end technical ownership of the backend across game logic, promotions, payments, sweepstakes, player accounts, admin/backoffice, and analytics • Lead design and evolution of the WebSocket / Akka-actor-based real-time gameplay layer and Akka cluster • Own integration correctness for Paysafe, WorldPay including 3DS flows, Apple StoreKit, and Google Play billing • Coordinate with legal/compliance on regulatory requirements for sweepstakes-model gaming • Make and review changes to backend infrastructure shared across all three casino gaming products • Account for cross-product impact of infrastructure changes • Own production health, including deploys, cluster operations, incident response, and postmortems • Set technical direction, run code review, and raise the engineering judgment bar • Absorb knowledge transfer from the outgoing lead through prepared written documentation and become the system's primary technical authority
• 7+ years professional backend engineering experience, with real ownership of a production system at meaningful scale • Strong Scala experience — functional style, not incidental Scala syntax on top of Java habits — ideally with Play Framework or a comparable typed functional web framework • Production experience with an actor-model or comparable distributed-systems framework (Akka, Erlang/OTP, or similar), including cluster operation, not just local single-node usage • Experience with async/reactive database access patterns (ReactiveMongo or equivalent reactive-driver experience) • Demonstrated ownership of at least one payment, billing, or other compliance-sensitive integration in production • Strong distributed-systems judgment: can reason about race conditions, idempotency under retry/duplicate delivery, and compatibility across a rolling deploy without being prompted • Preferred: Experience in iGaming, sweepstakes, or other regulated real-money gaming • Preferred: Experience with real-time, low-latency, or WebSocket-heavy backend systems • Preferred: Experience maintaining and evolving a legacy codebase (10+ years) without a rewrite • Preferred: Experience with MongoDB operations beyond query-writing — indexing strategy, replica set behavior under load
Apply Now🔥 18 minutes ago
Senior Software Engineer building and operating Airbnb's open-source NewSQL databases. Improving distributed storage reliability, replication, observability, and migration infrastructure.
🇺🇸 United States – Remote
💵 $196k - $230k / year
💰 Post-IPO Equity on 2020-12
⏰ Full Time
🟠 Senior
🔙 Backend Engineer
🦅 H1B Visa Sponsor
🔥 38 minutes ago
Senior Backend Engineer scaling payment, billing, identity, and partner-integration services. Building reliable APIs and infrastructure for Flex’s rent-payment fintech platform.
🇺🇸 United States – Remote
💵 $146.2k - $215k / year
⏰ Full Time
🟠 Senior
🔙 Backend Engineer
🦅 H1B Visa Sponsor
🔥 1 hour ago
Full Stack .NET Developer leading healthcare data application development at Voya Financial. Designing, optimizing, and reviewing front-end and back-end systems using .NET technologies.
🔥 2 hours ago
Senior manager leading back-end engineering for Quanata’s insurance technology platforms. Guiding policy, billing, and financial ledger systems while developing engineering teams.
🔥 4 hours ago
Atlassian Platform Architect owning Jira, JSM and Confluence architecture for Datavant’s healthcare data collaboration platform. Leading secure, scalable automation, integrations, governance and remediation.
🇺🇸 United States – Remote
💵 $160k - $180k / year
💰 $40M Series B on 2020-10
⏰ Full Time
🟡 Mid-level
🟠 Senior
🔙 Backend Engineer
🦅 H1B Visa Sponsor