
Sr. Backend Engineer (Remote) at Mode Mobile
Mode: Fast-growing earn-as-you-go software enabling equitable financial opportunity.
Build, scale, and evolve backend systems for consumer-facing mobile products; architect reliable services, scalable APIs and microservices, distributed systems, queues, external API integrations, and event-driven flows; improve observability, monitoring, logging, testing, alerting, performance, uptime, and resilience; collaborate with product, design, data, and frontend in rapid 2-week sprint/CI-CD environment; requires 6+ years backend experience including 2+ years in a senior-level role; must: expert Ruby on Rails, PostgreSQL performance/schema/indexing, Sidekiq, Redis, API design, distributed systems, third-party integrations, AWS (S3, DynamoDB, SQS, CloudWatch, SES), testing/CI-CD/debugging/performance optimization; preferred: mobile app backends, ActiveAdmin, Shoryuken, Stripe; nice to have: event-driven/streaming architecture, AI-assisted development, feature flagging/experimentation/A/B testing; full-time role includes equity participation
Remote anywhere; 100% remote-first global company