Senior Backend Software Engineer

HyperFi

About The Position

We're looking for a Senior Backend Software Engineer to join early. Someone who thrives in fast-moving environments, knows how to balance velocity with sound engineering, and wants to build foundational systems that scale. You’ll work closely with the Tech Lead and CTO, contributing directly to architecture, implementation, and internal tooling — and have real influence over how this thing takes shape.

Requirements

6–8 years of professional experience building production backend systems
Strong Python fundamentals, with real-world async or service-layer experience
Solid understanding of relational data models, schema design, and SQL optimization
Experience designing and consuming APIs — especially gRPC or service mesh patterns
Familiarity with software architecture principles, even if you're not “the architect”
Comfort navigating ambiguity, collaborating with other senior engineers, and shipping code that matters
Confident English skills to collaborate clearly and effectively with teammates

Nice To Haves

Have worked in an event-driven or event-sourced architecture
Are familiar with infrastructure as code (Terraform preferred)
Have experience with MCPs, or other orchestration/coordination frameworks
Know how to build and evolve a local dev/test environment
Can show us something you’ve built that reflects how you think

Responsibilities

Build and extend core backend services in Python — everything from APIs and MCPs, to event handlers
Shape and implement key pieces of our domain model and service boundaries
Own integrations between internal systems and external platforms via gRPC and REST
Contribute to system architecture alongside the Tech Lead and CTO
Work with Postgres and event-driven pipelines, designing schemas and migrations as code
Help lay the groundwork for developer tooling, observability, and automated testing
Write code that’s clean, testable, and built for humans — not just machines