{"schemaVersion":"jobsearcher.job.v1","id":"1f9f75ab9526017bfa7b29dd","url":"https://jobsearcher.com/jobs/1f9f75ab9526017bfa7b29dd","canonicalUrl":"https://jobsearcher.com/jobs/1f9f75ab9526017bfa7b29dd","title":"Senior Java Software Engineer","description":"ONLY FOR CANDIDATES BASED IN POLAND\r\nLocation: Poland (Remote) | Type: B2B, Full-time | FinTech, Blockchain, AI\r\nI'm currently looking for an experienced Java Backend Engineer ready to take on new challenges in their career!\r\nMy client is building the new operating system (O/S) for global finance. The company is growing fast, with $400B on the platform in 2025 and $1T in 2026. They are building \"unified ledgers\" with massive infrastructure (currently 20 million transactions per day, ready to scale up to 50 million). If you are looking for a challenging, greenfield/sandbox environment and working alongside experienced software engineers, this might be a role for you!\r\nDesigning and developing scalable, high-performance financial applications;\r\nLeading code reviews, technical decisions , and system architecture discussions;\r\nSolve complex engineering challenges while maintaining coding best practices.\r\n6+ years of software development experience;\r\nStrong coding expertise in Java and frameworks like Spring, Spring Boot;\r\nKnowledge of SQL, MongoDB , and scalable database structures;\r\nExperience across the full software development lifecycle;\r\nExperience working with microservices and Kubernetes/Docker;\r\nBonus\r\nExperience with blockchain and/or AI is a huge plus!\r\nJOB DETAILS\r\nType: B2B\r\nWork arrangement: Remote or Hybrid ( if based in Wroclaw)\r\nSalary: $6000+ per month (VAT not applicable, international invoice) + paid holidays\r\nJoin as a Backend Engineer and help build the future of fintech!\r\nIf you have any questions or you want to apply directly, email: a.sawa@ltharper.com\r\nJ-18808-Ljbffr","company":"Lt Harper Recruitment Group","rawCompany":"lt harper recruitment group","city":"Poland","state":"NY","isRemote":false,"isActive":false,"createdAt":"2026-04-09T15:25:13.259Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"},{"code":"15-1299.07","title":"Blockchain Engineers","slug":"blockchain-engineers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Java Software Engineer","description":"ONLY FOR CANDIDATES BASED IN POLAND\r\nLocation: Poland (Remote) | Type: B2B, Full-time | FinTech, Blockchain, AI\r\nI'm currently looking for an experienced Java Backend Engineer ready to take on new challenges in their career!\r\nMy client is building the new operating system (O/S) for global finance. The company is growing fast, with $400B on the platform in 2025 and $1T in 2026. They are building \"unified ledgers\" with massive infrastructure (currently 20 million transactions per day, ready to scale up to 50 million). If you are looking for a challenging, greenfield/sandbox environment and working alongside experienced software engineers, this might be a role for you!\r\nDesigning and developing scalable, high-performance financial applications;\r\nLeading code reviews, technical decisions , and system architecture discussions;\r\nSolve complex engineering challenges while maintaining coding best practices.\r\n6+ years of software development experience;\r\nStrong coding expertise in Java and frameworks like Spring, Spring Boot;\r\nKnowledge of SQL, MongoDB , and scalable database structures;\r\nExperience across the full software development lifecycle;\r\nExperience working with microservices and Kubernetes/Docker;\r\nBonus\r\nExperience with blockchain and/or AI is a huge plus!\r\nJOB DETAILS\r\nType: B2B\r\nWork arrangement: Remote or Hybrid ( if based in Wroclaw)\r\nSalary: $6000+ per month (VAT not applicable, international invoice) + paid holidays\r\nJoin as a Backend Engineer and help build the future of fintech!\r\nIf you have any questions or you want to apply directly, email: a.sawa@ltharper.com\r\nJ-18808-Ljbffr","datePosted":"2026-04-09T15:25:13.259Z","dateModified":"2026-04-09T15:25:13.259Z","hiringOrganization":{"@type":"Organization","name":"Lt Harper Recruitment Group","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Poland","addressRegion":"NY","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"1f9f75ab9526017bfa7b29dd"},"url":"https://jobsearcher.com/jobs/1f9f75ab9526017bfa7b29dd"}}