Senior Software Engineer - Go Networking

Witness AI•Mountain View, CA

14d•Hybrid

About The Position

WitnessAI is a fast-growing SaaS startup on a mission to enable enterprises to adopt AI, safely. We're building a product that provides security and governance guardrails for public and private LLMs. We're seeking a skilled Go developer with expertise in network traffic analysis and content extraction. The ideal candidate will have the ability to work with application layer data (HTTP, JSON, etc.)

Requirements

5+ years of professional software development experience, with at least 3 years using Go
Expert-level proficiency in Go, including: - Advanced concurrent programming (goroutines, channels, sync package) - Comprehensive standard library knowledge (encoding, net, bufio, io packages) - Memory-efficient programming and performance optimization
Strong experience building data extraction systems
Expertise working with structured data formats (JSON, XML, YAML) and text processing
Understanding of HTTP protocol fundamentals (headers, methods, status codes, request/response flow)
Experience with streaming data processing and real-time systems
Strong debugging and troubleshooting skills
Excellent problem-solving abilities and attention to detail
Strong communication skills and collaborative mindset

Nice To Haves

Knowledge of additional markup and data formats (Protocol Buffers, MessagePack, CBOR)
Familiarity with network programming concepts (TCP/IP basics, packet structure)
Experience with performance profiling and optimization in Go
Knowledge of TLS/SSL fundamentals
Experience with streaming protocols (WebSockets, gRPC, HTTP/2)
Familiarity with cloud-native technologies (Docker, Kubernetes)
Background in compiler design or language parsing
Experience with network packet analysis tools (Wireshark, tcpdump)
Understanding of security protocols and encrypted data handling

Responsibilities

Develop and maintain high-performance Go applications for data processing and analysis
Build robust content extraction systems that can handle real-time data streams
Create tools for processing and analyzing application-layer protocol data (JSON, XML, HTML)
Implement concurrent data processing pipelines using Go's powerful concurrency primitives
Design extensible plugin based architectures that can adapt to new data formats and protocols