Real-Time Backend Engineer - APIs, Kubernetes & Lakehouse

Lakefusion; Texas; Hybrid; USD 110,000 - 170,000; Full time

Job summary

LakeFusion seeks a Software Engineer - Backend to design and scale a real-time API for enterprise workloads, running across Azure, AWS, and customer-managed Kubernetes clusters. The role emphasizes defensive design, observability, and testing under failure conditions.

You will own the architecture of high-throughput APIs, integrate with MongoDB, Databricks Delta Lake, and Unity Catalog, and ensure smooth interoperability between FastAPI and .NET services in diverse environments.

Qualifications

• 2+ years backend engineering building production-grade services or microservices.
• 2+ years Python experience with FastAPI, ASGI server tuning, asyncio, and profiling.
• 2+ years of .NET Core / .NET 6+ (C#) with RESTful APIs and DI architectures.
• 2+ years of MongoDB experience including schema design and indexing.

Responsibilities

• Own architecture and implementation of a high-throughput real-time API on Kubernetes.
• Develop core enterprise backends using .NET and FastAPI for interoperability with NoSQL stores.
• Design for resilience, graceful degradation, and fault tolerance under failures or outages.
• Tune Kubernetes autoscaling (HPA, KEDA) for bursty production workloads.
• Optimize NoSQL data stores (MongoDB) for low-latency queries.
• Build streaming pipelines and data lakehouse integrations for real-time analytics.
• Ensure portability to customer environments with restricted networks and identities.

Skills

Python (FastAPI)

ASGI tuning

C# / .NET Core

MongoDB

Kubernetes (HPA/KEDA)

Observability (OpenTelemetry)

Distributed systems

RESTful APIs

Tools

Docker

Databricks Connect

Job description

LakeFusion seeks a Software Engineer - Backend to design and scale a real-time API for enterprise workloads, running across Azure, AWS, and customer-managed Kubernetes clusters. The role emphasizes defensive design, observability, and testing under failure conditions.

You will own the architecture of high-throughput APIs, integrate with MongoDB, Databricks Delta Lake, and Unity Catalog, and ensure smooth interoperability between FastAPI and .NET services in diverse environments.