About BIT：
BIT (formerly Matrixport) is a global digital asset financial services and infrastructure group. Headquartered in Singapore and founded in 2019, BIT bridges traditional finance and digital assets through governance-driven financial services and technology.
The firm manages over US$7 billion in assets and facilitates more than US$7 billion in monthly trading volume. BIT offers services including custody, trading, asset and wealth management, liquidity and financing solutions, and tokenised real-world assets (RWA), serving institutional and professional investors globally.
BIT Group entities maintain a licensed and regulated footprint across Singapore, Hong Kong, Switzerland, the United Kingdom, the United States and Bhutan.
For more information, visit www.bit.com
Kickstart Your Journey at BIT:
At BIT, we come together as a dynamic team to tackle exciting challenges head-on, creating an environment bursting with openness, transparency, and inclusivity. Every graduate is a vital part of our mission, and your ideas will always be valued. We’re searching for passionate, intellectually curious, and entrepreneurial individuals ready to make a real impact in the crypto ecosystem and help create innovative products for the next billion users.
- Make a Difference in the Future of Web3!
- Gain Hands-On Experience with Cryptocurrencies!
- Unlock Global Opportunities!
- Mentorship and Networking with Industry Leaders!
- Join a Fun, Vibrant, and Engaging Culture!
Job Responsibilities
Core Business Development
- Design, develop, and maintain backend services for the company's card payment and card issuing platform using Golang.
- Participate in the development of key business modules, including card issuing, card accounts, authorization, clearing & settlement, transaction processing, billing, rewards, and benefits systems.
Card Transaction Lifecycle Development
- Design and implement end-to-end card transaction processing workflows.
- Develop and maintain critical payment flows, including Authorization, Reversal, Capture, Refund, and Reconciliation.
- Ensure transaction accuracy, reliability, and consistency throughout the payment lifecycle.
Architecture Design & Optimization
- Participate in system architecture design and technical solution planning.
- Contribute to legacy system analysis, migration, and modernization initiatives.
- Continuously optimize system performance, scalability, and reliability to support mission-critical financial services.
Technical Excellence
- Identify and resolve system bottlenecks and complex technical challenges.
- Improve system throughput, response time, and operational stability under high-concurrency environments.
- Ensure transaction integrity, fund security, and data consistency.
Engineering Quality
- Produce and maintain high-quality technical documentation.
- Conduct code reviews and uphold engineering best practices.
- Develop comprehensive unit tests and integration tests to ensure system reliability and maintainability.
Requirements
Basic Qualifications
- Bachelor's degree or above in Computer Science, Software Engineering, or a related field.
- 3+ years of backend development experience using Golang and/or Java.
- Hands-on experience in card issuing systems, card payment systems, or card transaction processing platforms is highly preferred.
- Understanding of cryptocurrency fundamentals; experience in crypto trading, payments, or financial infrastructure is a plus.
Technical Skills
Programming & Computer Science Fundamentals
- Strong proficiency in Golang and/or Java, with a solid understanding of concurrent programming.
- Strong knowledge of Linux operating systems, computer networking, and data structures.
- Familiarity with Kubernetes and cloud-native development concepts.
Databases & Middleware
- Strong experience with MySQL and SQL performance optimization.
- Proficient in Redis and caching strategies, including handling cache penetration, cache breakdown, and cache avalanche scenarios.
- Experience with Kafka or similar messaging systems for asynchronous processing and system decoupling.
Distributed Systems
- Solid understanding of microservices architecture.
- Experience with gRPC and Protocol Buffers (Protobuf).
- Familiarity with service governance practices, including service discovery, circuit breaking, rate limiting, and distributed tracing.
Cloud Native & DevOps
- Experience with Docker, Kubernetes, and containerized application deployment.
- Familiarity with CI/CD pipelines and modern software delivery practices.
AI-Driven Development
- Proficient in using AI-assisted development tools such as Claude Code, Codex, or similar solutions.
- Able to integrate AI-powered workflows into daily development processes to improve productivity and engineering efficiency.
- Demonstrated ability to design and build high-value AI-assisted development workflows.
Preferred Qualifications
- Experience building systems for licensed card issuers, acquirers, payment processors, or third-party payment institutions.
- Familiarity with ISO 8583, ISO 20022 messaging standards, or integration with card networks and issuing partners.
- Experience with crypto payment infrastructure, crypto cards, fiat on/off-ramp solutions, or digital asset payment systems.
- Experience building accounting, reconciliation, treasury, or risk-control systems for high-volume financial transactions.
- Familiarity with PCI-DSS and payment security/compliance standards.
- Proven experience leading payment system development from scratch (0-to-1) or participating in large-scale core system migration projects.
Embrace the opportunity to thrive and grow with us as we shape the future together at BIT!
By submitting a job application, you confirm that you have read and agree to our Candidate Privacy Policy. <https://www.bit.com/privacy-candidate>
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