Sr. Backend Engineer

Responsibilities

• Architect backend systems powering user workflows, notifications, and automation features
• Design APIs and microservices built for performance, efficiency, and scale
• Improve observability, monitoring, logging, testing, and alerting
• Build distributed systems with multiple services, queues, external APIs, and asynchronous data flows
• Partner with product, data, and frontend to ship features
• Investigate production issues across application, infrastructure, data, and third-party dependencies
• Make pragmatic decisions about technical debt and modernization

Requirements

• 6+ years of backend engineering experience, ideally in consumer apps, mobile, or SaaS
• At least 2 years in a senior-level role
• Strong production experience with Ruby on Rails
• Hands-on production experience with PostgreSQL, including schema design and query optimization
• Expertise with Sidekiq for background job processing
• Solid background in API design, RESTful principles, and versioning
• Proven track record of integrating with third-party APIs
• Ability to work in a fast-moving remote startup environment

Preferred Qualifications

• Experience building and supporting backends for mobile apps
• Hands-on work with Shoryuken for SQS message processing
• Experience integrating payment processors like Stripe
• Proficiency using Redis for caching and job queues
• Familiarity with AWS services (S3, DynamoDB, SQS, CloudWatch, SES)
• Experience with event-driven or streaming architecture

Benefits

• 100% remote-first, global company
• Competitive compensation package
• Participation in the Company's equity and token plan
• Individual bonuses via Company Bonus Program
• Open PTO and generous Company Holidays
• 10 annual Wellness Fridays
• Remote social activities and recognition via Bonusly

About the Company

Mode.Inc is the parent company of a portfolio of technology businesses, including Mode Mobile, the creator of EarnOS, a software platform that turns smartphones into "EarnPhones". The company has attracted over 40 million users across 170 countries and is ranked as one of the fastest-growing companies in North America.