Senior Software Engineer (Java / Payments Infrastructure) (Remote)

Dear applicants, please keep in mind that applications without provided salary expectations and active LN profile will not be considered. Hope for your understanding.
We are hiring Senior Software Engineer to extend and scale a global blockchain and payments infrastructure platform supporting the tokenization of value worldwide. This role focuses on building secure, reliable microservices and APIs that bridge traditional banking systems with blockchain protocols. You will design and own production-grade backend systems that move value across multiple financial rails, including bank transfers and digital asset networks. The position requires strong Java expertise, deep experience with scalable system design, and a solid understanding of payment architectures. You will collaborate closely with Product and Engineering teams to deliver high-quality, secure, and compliant financial services. This is a fully remote opportunity for US-based engineers with strong Pacific Time overlap.
DetailsLocation: US – Fully Remote (strong preference for PT / West Coast overlap)Work Model: RemoteEmployment Type: Full-timeIndustry: Financial Technology / Blockchain InfrastructureStart Date: ASAP
Key ResponsibilitiesExtend and enhance blockchain-based financial infrastructure systemsBuild and own scalable microservices responsible for secure value transfer APIsDesign, develop, and maintain RESTful APIs for payments and digital asset operationsIntegrate systems with banking rails and financial institutionsWrite infrastructure supporting payment experiences, including databases, messaging systems, and APIsTroubleshoot system issues and optimize for reliability and performanceCollaborate with Product and cross-functional stakeholders on architecture and system principlesMaintain strong coding standards, test coverage, and continuous delivery practices
Requirements6+ years of professional software development experienceStrong expertise in Java (preferred primary language)Experience leading small teams technically (architecture and system design)Experience building scalable microservices architecturesSolid understanding of RESTful API design principlesExperience with payment systems (credit cards, bank transfers, financial rails)Experience with cloud platforms (AWS, GCP, or Azure)Strong SQL database design and schema modeling skillsExperience designing and deploying production-quality softwareStrong focus on code quality, testing, and reliabilityBachelor’s degree in Computer Science or equivalent experience
Nice to HaveExperience in blockchain or Web3 environmentsExperience with GoExperience in high-availability, financial-grade systems