Job Description
Senior Backend Engineer (Java) Location: Remote / Within 2 hours of China Time Zone Department: Payments Infrastructure Team About VelaFi: VelaFi is a global company dedicated to building next-generation Stablecoin Payment Infrastructure. We connect banks, payment service providers, and blockchain networks to enable businesses and individuals to transfer funds securely and compliantly worldwide. Our Mission: To make stablecoin payments as simple as using local banking apps—fast, transparent, and borderless. Our team spans Asia, Latin America, and Europe, operating fully remotely with a culture that encourages autonomy and collaboration. We're seeking an experienced Senior Java Backend Engineer to join our Payments Infrastructure team. You'll design and build scalable global payment systems that integrate banks, third-party payment processors, and crypto networks. This role covers the entire product lifecycle—from system architecture and development to deployment and performance optimization—working closely with product, frontend, and compliance teams to support our global payment operations. Responsibilities:
- Develop and maintain high-performance, scalable Java microservices architecture
- Build secure and reliable APIs for bank, payment gateway, and crypto network integrations
- Integrate with external payment providers to automate account opening, deposits, withdrawals, and compliance processes
- Identify and optimize system performance issues to ensure high availability and scalability
- Write technical documentation and participate in code reviews
Job Requirements
- Bachelor's degree or higher in Computer Science or related field
- 4+ years of Java backend development experience with proficiency in Spring Boot/Spring Cloud
- Familiarity with MySQL, Redis, Kafka, and distributed systems architecture
- Experience designing microservices architecture and developing RESTful APIs
- Knowledge of payment systems or cryptocurrency systems preferred
- Strong communication skills in English and Chinese, self-motivated with ability to work independently
- Experience integrating with banks or payment providers (e.g., Stripe, Adyen, UnionPay, Mercado Pago, dLocal, Pix, SPEI, PayU)
- Understanding of blockchain, wallet systems, or cryptography
- Familiarity with AWS/GCP, Docker, or Kubernetes
Benefits
- Global team with flexible remote work environment
- Work on core projects building foundational payment infrastructure
- Collaborate with top engineers from Web3, FinTech, and payments sectors
- Fast-growing industry with high growth potential and technical challenges
