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JOB DETAILS

Senior Full Stack Engineer(Node.js) (Remote)

CompanyA5 Labs

LocationSan Jose

Work ModeRemote

PostedMarch 20, 2026

About The Company

We’re a team of tech entrepreneurs, AI scientists, online game operators, and die-hard fans, committed to shape the future of online competitive games where professionals and fans alike enjoy secure, fair and fun gaming entertainment.

About the Role

<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">About the Role<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">We're building cutting-edge AI-driven experiences that redefine industry standards in online gaming. As our Senior Full Stack Engineer, you'll drive technical initiatives across teams to build scalable web applications, in-app solutions, and integrations that power our innovative gaming platform. 80% of our work will be focused on the backend solutions.<div> </div><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"> What You'll Build<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Highly-available and performant gaming applications<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Scalable backend systems for global audiences<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- MVPs and production-ready solutions for online poker games<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Integration systems with various service providers<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Robust microservices architecture<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">## Required Skills<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- 7+ years of full stack development exp (3+ years in senior/lead role)<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Strong Node.js expertise<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Advanced TypeScript/JavaScript knowledge<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- REST APIs, GraphQL, gRPC, and WebSockets<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Testing frameworks (Jest)<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Databases (PostgreSQL, MongoDB, DynamoDB)<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Caching and queues (Redis, RabbitMQ, Kafka)<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- High-load and concurrent systems<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Microservices and distributed systems<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Security best practices <span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">Nice to Have<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- DevOps and CI/CD pipelines<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Cloud platform expertise (AWS, Cloudflare)<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- <b style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">Background in real-time multiplayer gaming or high-concurrency/high-load applications<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">## About Us<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">AceGuardian at A5 Labs combines gaming expertise with AI technology to revolutionize both gaming and real-world problem-solving. Our team focuses on building advanced AI agents through reinforcement learning, game-solving, fine-tuning, and planning, tackling challenges like anti-cheat detection and optimal gameplay.<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">## What We Offer<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Remote-first environment<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Opportunity to work on innovative AI projects<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Collaboration with experts in AI and game development<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Flexible work environment<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Career growth in a fast-growing company<br style="box-sizing: inherit; color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;"><span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">- Supportive and dynamic team<span style="color: rgb(29, 28, 29); font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; orphans: 2; widows: 2; background-color: rgb(248, 248, 248); text-decoration-style: initial; text-decoration-color: initial;">Ready to help build the future of AI-powered gaming technology? Join us in creating resilient, scalable systems that power the next generation of online gaming experiences. We'd love to hear from you!<span style="font-size:11pt;font-family:'Titillium Web',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">

Key Skills

Node.jsTypeScriptJavaScriptREST APIsGraphQLgRPCWebSocketsTesting FrameworksPostgreSQLMongoDBDynamoDBRedisRabbitMQKafkaMicroservicesSecurity Best Practices