Senior Engineer, API & Interoperability

Launch Legends Inc.; USA; Remote; USD 180.000 - 260.000; Vollzeit

Zusammenfassung

Launch Legends is seeking an experienced API/Protocol Engineer to own versioned contracts for DevHub and partners, while managing bridges and related surfaces. You will implement durable Saga workflows for multi-step processes and ensure reliable event delivery with idempotency.

The role requires strong Kubernetes operation experience and OpenTelemetry tracing to maintain robust, observable systems. You will also contribute to developer surfaces, documentation, and sandboxes, collaborating

Qualifikationen

• 5+ years in protocol or API engineering.
• Proficiency in Go or Rust, and gRPC or GraphQL.
• Experience operating a bridge, IBC path, XCM, or CCIP.
• Strong understanding of distributed systems (retries, idempotency, timeouts).
• Experience with Kubernetes and tracing (OpenTelemetry).
• Bachelor's or Master's in Computer Science or equivalent.

Aufgaben

• Own versioned API contracts for DevHub and partners.
• Manage IBC channels, relaying, and bridge surfaces (Base to Autheo).
• Implement durable workflows (Saga) for multi-step flows.
• Deliver reliable event delivery (webhooks/streams) with idempotency.
• Ensure reliability via Kubernetes, circuit breakers, and tracing.
• Maintain developer surfaces including documentation and sandboxes.

Kenntnisse

Go or Rust

gRPC / GraphQL

Distributed systems

Kubernetes

OpenTelemetry tracing

IBC / bridge exposure

Ausbildung

Bachelor's or Master's in Computer Science or equivalent

Tools

Cosmos SDK

Kafka

EVM clients

Jobbeschreibung

Responsibilities

• Own versioned gRPC, GraphQL, and REST API contracts for DevHub and partners
• Manage IBC channels, relaying, and bridge surfaces (Base to Autheo)
• Implement durable workflows (Saga) for multi-step flows
• Deliver reliable event delivery (webhooks/streams) with idempotency
• Ensure reliability via Kubernetes, circuit breakers, and OpenTelemetry tracing
• Maintain developer surfaces including documentation and sandboxes

Requirements

• 5+ years in protocol or API engineering
• Proficiency in Go or Rust, and gRPC or GraphQL
• Experience operating a bridge, IBC path, XCM, or CCIP
• Strong understanding of distributed systems (retries, idempotency, timeouts)
• Experience with Kubernetes and tracing (OpenTelemetry)
• Bachelor's or Master's in Computer Science or equivalent

Preferred Qualifications

• Experience with Cosmos SDK or EVM clients
• Experience with bridge audits
• Multi-language SDK development
• Experience with Kafka or equivalent event logs
• Public technical artifacts (specs, crates, or design docs)

About the Company

Launch Legends is the parent company of Autheo, a Layer-0 Operating System and integrated Layer-1 blockchain. Autheo Mainnet is live, THEO is trading, and the project is focused on bridging Web3 technology with enterprise-grade solutions and DePIN innovations.