HumanSignal · 2 months ago
Senior Backend Engineer
United States
Full-time
Remote
Senior Level
$140K/yr - $200K/yrHumanSignal is a company focused on building high-quality data platforms for AI training and evaluation. They are seeking a Senior Backend Engineer to design and operate services in Python/Django that support labeling and evaluation workflows, ensuring reliable and efficient performance.
Computer Software
Responsibilities
Design, build, and operate backend services/APIs in Python/Django with Postgres/Redis
Own outcomes, not tasks: refine scope, suggest trade-offs, and land increments that deliver value quickly and safely
Model data and author migrations; tune queries and caching; manage background jobs/queues for high-volume workflows
Evolve API contracts with FE; keep interfaces clear, versioned, and resilient to change
Improve reliability and performance (timeouts, retries, idempotency, rate limits, pagination, backpressure)
Implement secure, multi-tenant patterns: auth, permissions/RBAC, auditability, and safe data boundaries
Contribute to testing strategy (unit/integration), error handling, and graceful failure modes
Partner with Support to investigate production issues and turn learnings into fixes and prevention
Engage with our open-source community (issues, discussions) to understand real-world needs and improve developer experience
Participate in architecture discussions and code reviews; mentor teammates and improve patterns across the codebase
Qualification
Required
Senior-level experience shipping production backends in Python/Django (or a close equivalent) and SQL
Strong product sense: you've made scope/trade-off decisions and iterated based on real-world usage and feedback
Depth in REST API design, relational modeling, migrations, and performance tuning
Experience with background processing/queues (e.g., Celery/RQ/Kafka-backed workers) and operational concerns
Clear written communication at a Senior IC level—concise RFCs/PRDs, actionable reviews, and crisp decision records
Preferred
GraphQL familiarity
Kafka/streaming
Spark/BigQuery
security/compliance exposure
multi-region architectures
Company
HumanSignal
HumanSignal enables data science teams to build AI models with their company DNA.
Founded in 2019
51-200 employees
H1B Sponsorship
HumanSignal has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
Funding
Current Stage
Growth StageLeadership Team
Michael Malyuk
Co-Founder
Nikolai Liubimov
Chief Technology Officer
Recent News
2024-11-21
2024-11-18
2024-11-18
Company data provided by crunchbase