{"schemaVersion":"jobsearcher.job.v1","id":"138ff4b081629df4d5ac28c3","url":"https://jobsearcher.com/jobs/138ff4b081629df4d5ac28c3","canonicalUrl":"https://jobsearcher.com/jobs/138ff4b081629df4d5ac28c3","title":"Senior Fullstack Engineer - Node.js, GraphQL & MongoDB","description":"Crew Member of the WINFELLAS Development Team\r\nDescription Product Development is the largest organization in WINFELLAS, with teams across Europe, Poland, Germany, and now we move to Malta!\r\nIn our Tech and Product (which we call Product Development), we have different Areas where teams focus on providing the best experience when it comes to the different journeys our customers take on our Multiplayer Gaming Product. Our teams are structured in end-to-end feature teams, to ensure as an organization we are delivering the best quality as quickly as possible!\r\nWe are looking to expand our team in the FELLAS Area. The FELLAS Area is the engine behind the multiplayer technologie - frontend and backend management . Within the area we drive the frameworks that empower the other areas to achieve their features. We also deal with a centralized content delivery and game streaming system, player management, our gamification tools and product releases.\r\nMalta HQ Now we are starting to build our Malta HQ! We recognise it may not be for the faint-hearted, but if you're a go-getter, initiator and adrenaline junkie, a driver to push yourself and your team to the next level, then you'll fit right in. A taste of what you will be involved with We plan our features together and we are constantly working to improve our performance.\r\nYou will have the opportunity to work on new features and components of our internal tools, but you will also work on maintenance and improvements of the existing system.\r\nWhat we are looking for: A senior developer with years of experience in developing backend systems, preferably in javascript/node.js; and knowledge in Nest.js\r\nProficiency in MongoDB; both in writing queries and tuning performance and experience\r\nExperience in design and implementation of distributed and multi-tier systems, understanding REST principles and service-oriented environments (multiple services, multiple machines)\r\nHave experience with GraphQL\r\nKnowing Docker\r\nSomeone who uses a git source control system.\r\nKnowledge in automated testing and continuous integration\r\nUse of Agile/Lean methodologies for continuous delivery and improvement\r\nExperience of coaching and mentoring junior colleagues\r\nConfident in both written and spoken English\r\nWe find it extra awesome if: Clean architecture concepts.\r\nGitLab and GitLab CI/CS.\r\nAWS, especially Elastic Container Service\r\nDistributed microservice-based architectures\r\nWhat we offer Founded in 2020, our life with WINFELLAS switched to be lightning FAST and always with FUN! Then again, what else would you expect from a business mostly with millennials across 3 countries.\r\nWe work with the market leading social casino plattform jackpot.de ! With over 4 millons registered users jackpot.de is the leading brand in the EU social casino community.\r\nNew brands for the sports betting world are still in development.\r\nThe team behind WINFELLAS have over 60 years experience in the cash gaming industry. The next big thing will also be there.\r\nNow we are starting to build our Malta HQ! We recognise it may not be for the faint-hearted, but if you're a go-getter, initiator and adrenaline junkie, a driver to push yourself and your team to the next level, then you'll fit right in.\r\nWe encourage innovation, independence and celebrate success where you will be part of a multicultural and diverse company.\r\nTech stack: The below skills are essential when applying for this position. JavaScript Advanced\r\nNode.js Advanced\r\nNest.js Advanced\r\nMongoDB Advanced\r\nChallenge accepted? Check out the WINFELLAS to find out what our employees are working on.\r\nPlease submit your application\r\nAbout Winfellas WINFELLAS is a fast-growing company, operating the leading social casino multiplayer feature and successful iGaming brand jackpot.de.\r\nNext brands are waiting to work with WINFELLAS together. Through the focus on distinctive and unique gamification tools, we strive to provide our players with a unique online multiplayer gaming experience.\r\nJ-18808-Ljbffr","company":"Winfellas","rawCompany":"winfellas","city":"New Bremen","state":"OH","isRemote":false,"isActive":false,"createdAt":"2026-04-09T15:27:42.990Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Fullstack Engineer - Node.js, GraphQL & MongoDB","description":"Crew Member of the WINFELLAS Development Team\r\nDescription Product Development is the largest organization in WINFELLAS, with teams across Europe, Poland, Germany, and now we move to Malta!\r\nIn our Tech and Product (which we call Product Development), we have different Areas where teams focus on providing the best experience when it comes to the different journeys our customers take on our Multiplayer Gaming Product. Our teams are structured in end-to-end feature teams, to ensure as an organization we are delivering the best quality as quickly as possible!\r\nWe are looking to expand our team in the FELLAS Area. The FELLAS Area is the engine behind the multiplayer technologie - frontend and backend management . Within the area we drive the frameworks that empower the other areas to achieve their features. We also deal with a centralized content delivery and game streaming system, player management, our gamification tools and product releases.\r\nMalta HQ Now we are starting to build our Malta HQ! We recognise it may not be for the faint-hearted, but if you're a go-getter, initiator and adrenaline junkie, a driver to push yourself and your team to the next level, then you'll fit right in. A taste of what you will be involved with We plan our features together and we are constantly working to improve our performance.\r\nYou will have the opportunity to work on new features and components of our internal tools, but you will also work on maintenance and improvements of the existing system.\r\nWhat we are looking for: A senior developer with years of experience in developing backend systems, preferably in javascript/node.js; and knowledge in Nest.js\r\nProficiency in MongoDB; both in writing queries and tuning performance and experience\r\nExperience in design and implementation of distributed and multi-tier systems, understanding REST principles and service-oriented environments (multiple services, multiple machines)\r\nHave experience with GraphQL\r\nKnowing Docker\r\nSomeone who uses a git source control system.\r\nKnowledge in automated testing and continuous integration\r\nUse of Agile/Lean methodologies for continuous delivery and improvement\r\nExperience of coaching and mentoring junior colleagues\r\nConfident in both written and spoken English\r\nWe find it extra awesome if: Clean architecture concepts.\r\nGitLab and GitLab CI/CS.\r\nAWS, especially Elastic Container Service\r\nDistributed microservice-based architectures\r\nWhat we offer Founded in 2020, our life with WINFELLAS switched to be lightning FAST and always with FUN! Then again, what else would you expect from a business mostly with millennials across 3 countries.\r\nWe work with the market leading social casino plattform jackpot.de ! With over 4 millons registered users jackpot.de is the leading brand in the EU social casino community.\r\nNew brands for the sports betting world are still in development.\r\nThe team behind WINFELLAS have over 60 years experience in the cash gaming industry. The next big thing will also be there.\r\nNow we are starting to build our Malta HQ! We recognise it may not be for the faint-hearted, but if you're a go-getter, initiator and adrenaline junkie, a driver to push yourself and your team to the next level, then you'll fit right in.\r\nWe encourage innovation, independence and celebrate success where you will be part of a multicultural and diverse company.\r\nTech stack: The below skills are essential when applying for this position. JavaScript Advanced\r\nNode.js Advanced\r\nNest.js Advanced\r\nMongoDB Advanced\r\nChallenge accepted? Check out the WINFELLAS to find out what our employees are working on.\r\nPlease submit your application\r\nAbout Winfellas WINFELLAS is a fast-growing company, operating the leading social casino multiplayer feature and successful iGaming brand jackpot.de.\r\nNext brands are waiting to work with WINFELLAS together. Through the focus on distinctive and unique gamification tools, we strive to provide our players with a unique online multiplayer gaming experience.\r\nJ-18808-Ljbffr","datePosted":"2026-04-09T15:27:42.990Z","dateModified":"2026-04-09T15:27:42.990Z","hiringOrganization":{"@type":"Organization","name":"Winfellas","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"New Bremen","addressRegion":"OH","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"138ff4b081629df4d5ac28c3"},"url":"https://jobsearcher.com/jobs/138ff4b081629df4d5ac28c3"}}