The Software Engineer on the API Platform team helps build the internal API layer that connects NodeZero's services and powers the interfaces that customers and integrations rely on. API Platform owns the gateway, the API contracts, and the shared platform capabilities that other teams consume — your work directly determines the reliability, latency, and developer experience of NodeZero's service mesh.

You'll join a small but growing team, shipping against a roadmap that includes API consolidation, versioning, rate limiting, and observability. This role reports to the API Platform Engineering Manager.

Implement and maintain API endpoints, middleware, and platform services in Go

Build and evolve the API gateway layer — routing, authentication, rate limiting, and request/response shaping

Write and maintain API contracts (OpenAPI/gRPC definitions) and communicate breaking changes to internal consumers

Contribute to service reliability: monitoring, alerting, SLA tracking, and incident response for platform APIs

Write clear, reviewable code with tests that cover both the happy path and failure modes

Collaborate with Data Ingestion, Integrations Platform, and Client Platform teams who consume the APIs you build

What You'll Bring

Backend Engineering

2+ years of professional software engineering experience building production backend services

Proficiency in Python or strong motivation to ramp quickly — Python is the primary language on this team

Software Engineer, API Platform

Responsibilities

Qualification

Required

Preferred

Benefits

Company

horizon3ai

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