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Senior Backend Engineer (AI-Native, Ruby on Rails, PostgreSQL)

mode.inc • Türkiye
Full Remote
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Seeking a Senior Backend Engineer to own production systems, integrate new products, and scale core services at a fast-growing AI/data-driven company. Focus on distributed systems, API design, and high-volume data workflows with Ruby on Rails, PostgreSQL, and Sidekiq. Requires 6+ years of backend experience, strong debugging, and production ownership.

Key Highlights
AI-native company leveraging modern AI coding tools
2-week sprints with CI/CD and strong code quality practices
Focus on distributed systems, observability, and production resilience
Key Responsibilities
Architect and scale backend systems for user workflows, notifications, and automation
Design APIs and microservices for performance, efficiency, and scalability
Investigate and resolve production issues across applications, infrastructure, data, and third-party dependencies
Improve observability, monitoring, logging, testing, and alerting systems
Optimize performance and ensure uptime, stability, and production resilience
Technical Skills Required
Ruby on Rails PostgreSQL Sidekiq
Benefits & Perks
100% remote-first, global company
Generous perks & benefits including open PTO, Company Holidays, and Wellness Days
Participation in the Company's equity plan
Individual bonuses in accordance with Company Bonus Program
Bonusly recognition and reward system
Weekly Wednesday Get Stuff Done Days (No Meetings)
Remote social activities (virtual coffee buddies)
Nice to Have
Experience with AI coding and agentic tools
Experience in consumer apps, mobile, or SaaS environments
Experience with event-driven architectures and high-volume data systems

Job Description

We’re looking for an exceptional Senior Backend Engineer to take ownership of production backend systems and help integrate and evolve new products within Mode.

This is a hands-on role for someone who is comfortable entering unfamiliar codebases, quickly understanding complex systems, identifying risks, and turning them into reliable, maintainable production systems.

You will collaborate closely with product, design, data, and frontend engineering to deliver features through rapid development cycles and deployment. We are an AI-native company, and you’ll be expected to use modern AI coding and agentic tools as a force multiplier in your everyday engineering work.

What You’ll Do

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