- Job details:

1. Understand technical design documents and implement relevant business logic code as per the requirements of the lead.
2. Responsible for the development, testing, and upgrading of functional modules.
3. Responsible for researching new technologies and solving difficult problems.
4. Identify performance bottlenecks or architectural defects in functional modules and propose effective solutions to continuously improve the system and foster innovation.

Requirements :

1. Your skills and experience
2. 5+ years of backend development experience, with at least 2 years of hands-on Golang experience.
3. Proficient in Golang concurrent programming (goroutine/channel, sync package, memory model).
4. Familiar with the Golang ecosystem (Gin/Echo, gRPC, Protobuf, WebSocket).
5. Having skills in self-studying documentation, researching, and writing POCs about go-Ethereum, Fabric, Cosmos SDK
6. Familiar with microservices architecture (service discovery, circuit breaking & rate limiting, distributed transactions).
7. Proficient with Kubernetes/Docker and experienced with cloud platforms (AWS/Aliyun).
8. Familiar with message queues (Kafka/RabbitMQ) and caching systems (Redis).

Nice to have

1. Understanding of blockchain infrastructure (consensus algorithms, P2P networks)
2. Ability to read smart contract (Solidity) or DApp integration is a plus
3. Understand cryptographic algorithms (ECDSA, SHA-3, Merkle Tree, ...)

- Job requirements:

1. 2+ years of experience managing a technical team (510 people).
2. Skilled in task breakdown, technical decision-making, and code review.
3. Familiar with Agile development (Scrum/Kanban) and capable of driving team collaboration efficiently.

Bonus Points:

1. Contributions to open-source IM projects (eg, Matrix, Telegram protocol analysis) or blockchain open-source contributions (eg, Ethereum, Cosmos).
2. Knowledge of Zero-Knowledge Proofs (ZKP) or Layer 2 scaling technologies (eg, Rollup, state channels).
3. Experience in optimizing large-scale distributed systems (eg, messaging systems handling millions of QPS).

- Benefits received:

1. 13th-month salary bonus
2. Annual leave: 12 days/year
3. Gifts for holidays like Dragon Boat Festival and Mid-Autumn Festival.
4. Participate in social insurance, health insurance, and unemployment insurance.
5. Salary reviews are conducted 12 times a year.
6. Performance-based bonuses (if applicable).
7. A creative environment where you are free to propose ideas.
8. Opportunity to participate in large-scale, real-world product development projects.