Backend Senior Software Engineer United States Jobs (On-site work)

Join Twenty in New York as a Senior Backend Software Engineer. Build scalable Go services and high-performance APIs for mission-critical national security cyber operations. 5+ years backend experience required.

Join Twenty in Arlington as a Senior Backend Software Engineer building scalable Go services and high-performance APIs for offensive cyber operations. 5+ years backend experience required. Competitive benefits included.

Senior Backend Engineer role in NYC to build scalable distributed systems and LLM agent infrastructure. Requires 4-6+ years experience, Python/Go/Rust, AWS, and ML inference expertise. Above-market salary, equity, and flexible PTO.

LangChain seeks a Senior Backend Engineer in NYC to build APIs and services powering LangSmith's AI observability platform. Requires 5+ years backend experience, Python or Go, and expertise in high-throughput systems.

Senior Software Engineer (Backend) role at Uber in Seattle, San Francisco, or Sunnyvale. You will own and scale critical distributed systems like Distributed MySQL, Hudi-based Data Lakes, and cloud-native storage platforms. Requires 5+ years of experience, deep expertise in Java/Go/C++, and hands...

Senior Software Engineer (Backend) at Uber in San Francisco or Sunnyvale, CA. Build high-scale, mission-critical microservices for B2B contract automation and invoicing. Requires 5-10 years of experience with Java, Python, or Go, plus expertise in system design and data standardization. Enjoy equ...