Responsibilities
About the Team
The Microservices Framework team focuses on in-depth research in programming languages, RPC frameworks, and high-performance middleware. We provide company-wide development frameworks, high-performance middleware, a service mesh, and a unified governance platform. In addition, we deliver comprehensive performance optimization solutions for the company's microservices ecosystem.
You will have the opportunity to participate in cutting-edge R&D and collaborate with the team to build the next-generation microservices architecture.

Key Responsibilities
- Cost Optimization: Identify high-impact optimization opportunities through cost and performance analysis, design actionable solutions, and partner with business teams to drive successful implementation.
- Technical R&D: Explore heterogeneous language communication (primarily Go and Rust) with a focus on performance optimization, including hardware acceleration, and conduct customized optimizations of the Go runtime.
- Performance Diagnosis & Optimization Platform Development: Build systematic platform capabilities to support service cost analysis, performance diagnosis, and semi-automated optimization.

Qualifications
Minimum Qualifications
- Bachelor's degree or above in Computer Science or a related field, with a solid foundation in computer science fundamentals.
- Proficient in at least one high-performance programming language such as Go, Rust, or C++, with experience in low-level performance optimization (e.g., CPU cache optimization, zero-copy techniques, lock contention handling).
- Familiar with performance profiling tools and Linux kernel tuning.
- Strong systematic problem-solving skills, with the ability to effectively identify and resolve complex issues.
- Good teamwork and collaboration skills.

Preferred Qualifications
- Extensive experience in performance diagnosis and optimization of RPC frameworks, network libraries, and Go services.
- Experience optimizing systems handling traffic at the million-QPS level.
- Excellent communication skills, with the ability to drive cross-team technical initiatives to successful implementation.

About Us
Founded in 2012, ByteDance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok, Lemon8, CapCut and Pico as well as platforms specific to the China market, including Toutiao, Douyin, and Xigua, ByteDance has made it easier and more fun for people to connect with, consume, and create content.

Why Join ByteDance
Inspiring creativity is at the core of ByteDance's mission. Our innovative products are built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and enrich life - a mission we work towards every day.
As ByteDancers, we strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. By constantly iterating and fostering an Always Day 1 mindset, we achieve meaningful breakthroughs for ourselves, our Company, and our users. When we create and grow together, the possibilities are limitless. Join us.
Diversity & Inclusion
ByteDance is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At ByteDance, our mission is to inspire creativity and enrich life. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.

Software Engineer, Microservices Framework - Data Infrastructure