Backend Engineer - Secure, Low-Latency Pipelines

Antler; United States; Hybrid; USD 29,000 - 47,000; Full time

Job summary

Obiguard’s inspection pipeline sits in the critical path between customer applications and their LLMs — every prompt and response passes through it in single-digit milliseconds. As a Software Engineer, you’ll build and harden this pipeline: the detectors, the policy engine, and the audit ledger that enterprise security teams depend on in production.

This is a forward-deployed engineering role — during pilots, you may be deployed on-site at client offices for stretches of up to three weeks at a

Qualifications

• 3+ years building production backend systems in Go, Python, or Rust.
• Experience with distributed systems, observability, and debugging production incidents.

Responsibilities

• Design, build, and ship detectors for the inspection pipeline — covering PII, prompt injection, toxicity, and framework-specific policy rules.
• Improve p50/p99 latency on the synchronous, in-path inspection layer without compromising detection accuracy.
• Own services end-to-end: design, implementation, testing, deployment, and on-call.
• Work directly with customers during pilots to debug production incidents and edge cases in real deployments.
• Collaborate with the AI Safety Research team to turn new attack research into shipped detectors.
• Contribute to the audit ledger and framework-mapping systems that back our compliance guarantees.

Job description

Obiguard’s inspection pipeline sits in the critical path between customer applications and their LLMs — every prompt and response passes through it in single-digit milliseconds. As a Software Engineer, you’ll build and harden this pipeline: the detectors, the policy engine, and the audit ledger that enterprise security teams depend on in production.

This is a forward-deployed engineering role — during pilots, you may be deployed on-site at client offices for stretches of up to three weeks at a