About The Role

Join Lumafield, a cutting-edge technology company, as a Staff Backend Software Engineer. In this role, you will work on the core of our cloud platform, leveraging Python to build scalable backends and lead complex data-heavy workflows. You will also own the backend architecture for our cloud software and collaborate closely with product managers and engineering leadership. This position offers a range of benefits, including health coverage, paid parental leave, equity, and a flexible vacation policy.

Architect and own the backend architecture for cloud software supporting various services, ensuring scalability, reliability, and performance.
Design, build, and operate scalable Python backends, Celery pipelines, and REST APIs, leading complex, data-heavy workflows.
Coach and mentor engineering team members across the organization in architecture best practices and principles, collaborating closely with product managers and engineering leadership.
Deep PostgreSQL and AWS data/storage (S3, RDS/Aurora); solid IAM and VPC-aware patterns
Async systems: Celery + Redis or equivalent—queues, retries, idempotency, backpressure, prod debugging
2+ years of startup experience
Expert Python; 5+ years shipping production backends (Django / DRF a strong fit)
10+ years of experience developing software, mostly backend
5+ years production AWS; practical SageMaker (or similar) for services you orchestrate, not only notebooks
Bachelor’s Degree in Engineering or a related field
Owned architecture for complex, cloud-hosted, data-heavy products
Experience designing for and complying with SOC2, ISO27001, ITAR, and other security compliance frameworks and standards
Demonstrated ability to coach and mentor engineering peers on architectural principles
Extensive experience with high-traffic, data-intensive web applications
Django + Celery at meaningful scale
Deep expertise in Kubernetes and AWS architecture, security, and optimization
Regulated or export-controlled environments
High-throughput or large-payload APIs and pipelines