GOLANG Engineer (Remote)

Salary: 30K-60K (excluding project bonuses, negotiable for exceptional candidates)

Working Hours: 10 days on, 4 days off

Probation Period: 1-2 months

Company Project: IM Chat Project (chat experience required)

Work Location: Remote

Job Responsibilities:

1. Optimize and iterate on the existing third-party Telegram server implemented in Go.

2. Analyze performance bottlenecks during program execution (e.g., message processing delays, message synchronization, CPU and memory overhead, coroutine leaks, etc.), focusing on code-level optimization.

3. Develop and maintain server interfaces required for subsequent business needs, such as user management, message bulk deletion, business callbacks, etc.

4. Optimize message processing workflows, improve system concurrency, and enhance processing efficiency.

5. Collaborate with front-end, client-side, and operations teams to ensure system stability and high availability.

6. Write high-quality, maintainable Go code and continuously refactor and test.

Job Requirements:

1. Must have experience with Telegram projects, familiar with message flow, session management, offline messaging, and other mechanisms.

2. Familiar with the MTProto protocol, with a deep understanding of Telegram's message encryption and protocol stack.

3. Over 3 years of experience in Go development, with excellent code optimization and system design skills.

4. Proficient in using Kafka for asynchronous message processing, understanding its application scenarios in IM systems.

5. Familiar with common performance optimization techniques (CPU/memory analysis, Goroutine scheduling, GC tuning, cache design, etc.).

6. Good English documentation reading skills, capable of reading Telegram protocol and API specification documents.

7. Strong engineering quality, familiar with unit testing, code layering, and commenting standards.

Preferred Qualifications:

1. Practical experience in Golang GC performance tuning, pprof performance analysis, etc.

2. Contributions to open source or independently maintained IM-related projects.