Junior Backend Engineer
Bithumb helps users trade cryptocurrencies with Korean won through a centralized spot exchange with staking and lending services.
Funding history
Investors
About Bithumb
Bithumb is a cryptocurrency exchange platform serving South Korean and international traders with spot trading across multiple digital assets paired primarily with Korean Won. The platform provides trading tools including automated bots and API access, alongside payment services through Bithumb Cash that enable cryptocurrency transactions at retail merchants and e-commerce platforms. Users can generate passive income through staking programs and a coin rental service. Originally launched as Xcoin in 2014 and rebranded to Bithumb in 2015, the exchange operates as a licensed Virtual Asset Service Provider under South Korean financial regulators.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will develop and operate virtual asset deposit and withdrawal systems, analyze and integrate external blockchain L1 and L2 distributed systems, develop backend logic for asset-based services such as staking, and build secure API interfaces between key management systems and backend services.
Requirements
- 3 to 7 years of practical experience or equivalent understanding
- Proficiency in at least one of Java, Kotlin, Go, or Python and related frameworks such as Spring Boot
- Ability to design, develop, and operate stable and scalable backend systems
- Understanding of RDBMS and NoSQL characteristics, including MySQL and Redis
- Ability to design schemas and optimize queries for large-scale data
- Experience analyzing and improving system performance bottlenecks using computer science fundamentals
- Experience with Kafka or other event streaming platforms
- Experience designing or operating distributed systems
- Experience with Kubernetes and Docker in AWS or GCP environments
- Blockchain node integration or EVM development experience or interest
- Experience operating mission-critical financial or trading systems
- Ability to solve complex domain problems and collaborate with technical teams
Responsibilities
- Develop and operate virtual asset deposit and withdrawal systems
- Analyze new external blockchain L1 and L2 distributed systems
- Integrate external distributed systems with exchange systems
- Develop backend logic for asset-based services such as staking
- Integrate reward and settlement systems with exchange systems
- Develop and improve secure API interfaces between key management systems and backend services
Benefits
- Flexible start and end times
- Welfare points
- Commuting transportation support for night and holiday work
- Breakfast, lunch, and dinner provided
- Unlimited snacks and drinks
- Housing loan interest or rent support
- Childcare cost support for preschool children
- Holiday and Parents' Day gifts
- Health examinations for employees and family members
- Group accident insurance
- Company club activity support
- Resort and condominium accommodation support
