N-iX is looking for a Senior Java Engineer to join our team!
Our client is a leading, fully regulated US-based digital asset trading platform. They provide secure, low-latency access to cryptocurrency markets, acting as a bridge between traditional finance and the Web3 ecosystem.
Role Objective:
The Senior Backend Software Engineer will be responsible for architecting, developing, and maintaining the high-performance backend services that power the core platform. Leveraging deep expertise in Java and distributed systems, you will collaborate with cross-functional teams to deliver secure, scalable solutions while exploring and integrating cutting-edge blockchain technologies.
Key Responsibilities * Design, build, and maintain high-throughput backend services and APIs in Java. * Drive architecture discussions to enhance system scalability, resiliency, and performance. * Prioritize security and compliance as core aspects of service design and delivery. * Collaborate with product, security, DevOps, and compliance teams on cross-functional initiatives. * Mentor engineers and lead by example with high engineering standards and best practices. * Research and prototype blockchain integration opportunities (e.g., node syncing, client tooling). * Advocate for maintainable, modern infrastructure informed by industry best practices.
Required Qualifications * Bachelor’s or Master’s degree in Computer Science or related field. * At least 6+ years of professional software engineering experience. * Strong proficiency in Java and experience with modern frameworks and distributed systems. * Experience with performance optimization (e.g., low-latency systems, microservices). * Knowledge of security and compliance best practices in financial or regulated contexts. * Interest or hands-on experience in blockchain, crypto infrastructure, or decentralized systems. * Strong collaboration and mentorship skills in a fast-moving, cross-functional environment. * Upper-intermediate English proficiency is required, along with native proficiency in Spanish or Portuguese.
We offer*: * Flexible working format — remote, office-based or flexible * A competitive salary and good compensation package * Personalized career growth * Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) * Active tech communities with regular knowledge sharing * Education reimbursement * Memorable anniversary presents * Corporate events and team buildings * Other location-specific benefits * ot applicable for freelancers
