Senior Protocol Engineer

FlarePort; United States; Remote; USD 180,000 - 260,000; Full time

Benefits offered by this job

Equity

Job summary

FlarePort is seeking a Staff-level engineer to design the protocol surface that lets marketplaces speak MCP/A2A. You will translate heterogeneous schemas into resilient adapters, build rate limiting and telemetry guardrails, and own backwards compatibility across customer fleets.

This role requires fault-tolerant, cross-region services, experience with TypeScript or Go and a second strongly typed language, plus OAuth/OIDC, HMAC, and zero-trust patterns.

Qualifications

• 7+ years building distributed systems or protocol-heavy products.
• Deep experience with TypeScript or Go and a second strongly typed language.
• Confidence designing fault-tolerant services across regions.
• Experience with OAuth/OIDC, HMAC, and zero-trust principles.
• Ability to dissect and normalize third-party API schemas quickly.

Responsibilities

• Translate heterogeneous marketplace schemas into MCP/A2A adapters.
• Build rate limiting, authentication, and telemetry guardrails into integrations.
• Partner with security to threat-model agent abuse vectors before they reach production
• Own backwards compatibility for API and protocol changes across customer fleets.
• Ship instrumentation that makes reliability and latency regressions obvious.

Skills

Distributed systems

TypeScript or Go

Second typed language

Fault-tolerant design

OAuth/OIDC, HMAC, zero-trust

Schema normalization

Tools

Kafka/Pulsar/Kinesis

Job description

You will design the protocol surface that allows marketplaces to speak fluent MCP/A2A. From schema normalization to runtime safeguards, you keep our integrations fast, reliable, and secure for the agents that depend on them.

Responsibilities

• Translate heterogeneous marketplace schemas into resilient MCP/A2A adapters
• Build rate limiting, authentication, and telemetry guardrails into every integration
• Partner with security to threat-model agent abuse vectors before they reach production
• Own backwards compatibility for API and protocol changes across customer fleets
• Ship instrumentation that makes reliability and latency regressions impossible to miss

How We Measure Success

• P0 incidents per integration stay below 0.2 per quarter
• Regression test coverage for MCP adapters exceeds 95% critical paths
• p95 latency across agent handoffs stays under 600ms internationally
• Customer migrations to new protocol versions complete within 30 days of launch

Qualifications

• 7+ years building distributed systems or protocol heavy products
• Deep experience with TypeScript or Go and a second strongly typed language
• Confidence designing fault-tolerant services that run across regions
• Comfort working with OAuth/OIDC, HMAC signatures, and zero-trust principles
• Ability to dissect and normalize third-party API schemas quickly

Bonus Points

• Shipped agent client, RPA, or integrations products before
• Experience contributing to open protocol specifications
• Background working with event-streaming systems (Kafka, Pulsar, Kinesis)

Compensation: Benchmarking to SF Bay Area cash + equity for Staff-level engineers.